User Manual SMA FUEL SAVE CONTROLLER 2.0

Transcription

1 User Manual SMA FUEL SAVE CONTROLLER 2.0 FUEL SAVE CONTROLLER ENGLISH FSC20-BA-en Version 2.1

2 Legal Provisions SMA Solar Technology AG Legal Provisions The information contained in these documents is property of SMA Solar Technology AG. Any publication, whether in whole or in part, requires prior written approval by SMA Solar Technology AG. Internal reproduction used solely for the purpose of product evaluation or other proper use is allowed and does not require prior approval. SMA Warranty You can download the current warranty conditions from the Internet at Software licenses You will find the software licenses for the installed software modules on the Internet at Trademarks All trademarks are recognized, even if not explicitly identified as such. Missing designations do not mean that a product or brand is not a registered trademark. Modbus is a registered trademark of Schneider Electric and is licensed by the Modbus Organization, Inc. The SunSpec logo and the name SunSpec Alliance are trademarks of the SunSpec Alliance, Inc. QR Code is a registered trademark of DENSO WAVE INCORPORATED. Phillips and Pozidriv are registered trademarks of Phillips Screw Company. Torx is a registered trademark of Acument Global Technologies, Inc. SMA Solar Technology AG Sonnenallee Niestetal Germany Tel Fax info@sma.de Status: 5/15/2017 Copyright 2017 SMA Solar Technology AG. All rights reserved. 2 FSC20-BA-en-21 User Manual

3 SMA Solar Technology AG Table of Contents Table of Contents 1 Information on this Document Validity Target Group Additional Information Symbols Typographies Nomenclature Safety Intended Use Safety Information Product Description Functions Structure Key Switch Light Repeaters Type Label User Interface Requirements for the user interface display User Groups and User Rights Requirements for a Secure System Password Design of the User Interface Buttons in the header Home Page for User Group "User" Home Page for User Group "Installer" Configuration Wizard Structure of the Configuration Wizard Buttons in the Configuration Wizard Setting Parameters Getting Started Logging In and Out of the User Interface Changing Passwords Setting the User Interface Language Setting the System Time Setting Up Access via the Internet System Monitoring Retrieving Display Values of the Entire PV Diesel Hybrid System Retrieving Genset Display Values Retrieving PV Power Plant Display Values Retrieving Storage System Display Values Retrieving Display Values from Measurement Devices Viewing Data Records via the PV Diesel Hybrid System Monitoring the status of the digital switching inputs and outputs Device Information User Manual FSC20-BA-en-21 3

4 Table of Contents SMA Solar Technology AG 6.9 Processing Status Messages Operating Mode and Setpoints Overview of Operating Modes and Setpoints Displaying Setpoints and Actual Values Configuring the Operating Mode Specification of Setpoints for PV Power Plant by SCADA System System Settings Configuring the Utility Grid Settings for the gensets Parameters for Gensets with Genset Controller ComAp IG-/IS-NTC Parameters for Gensets with the Genset Controller DEIF AGC Parameters for Gensets with Genset Controller DSE Parameters for gensets with genset controller easygen-3000 via the CAN network Parameters for Gensets with Genset Controller easygen-3000 via the ESENET Gateway Parameters for Gensets without the Genset Controller Configuring Gensets Configuring the PV Power Plant Setting the Storage System Settings on the Measurement Devices Making General Settings on Measurement Devices Making Detailed Settings on Measurement Devices for Internal Measurement Modules of the SMA Fuel Save Controller Making Detailed Settings on Measurement Devices for Data Acquisition Modules Activating/Deactivating Devices Setting the Temperature and Irradiation Sensors Configuring Stop of the Fuel Save Controller via Switch Input DI Handling System Settings Ending System Settings Saving System Settings Loading System Settings Deleting System Settings System Control Genset control Configuring the Minimum Genset Load Threshold Configuring Reverse Power Protection of the Gensets Setting the Supply of Sufficient Reserve Power via Gensets Controlling the PV power plant Setting the Power Factor Control for the Gensets Using the Reactive Power Release of the PV Inverters Setting the Control of the PV Power Plant Reactive Power According to Electrical Load Configuring MPP Calculation for PV Power Plant Controlling the Battery Inverter Setting the State-Of-Charge Control of the Battery Setting the Setpoints for the Storage System According to the Rise and Drop of PV Power Setting the Charge/Discharge of the Battery According to the Rise/Drop in PV Power Controlling the Fuel Save Controller Configuring Setpoint Change Rate for PV inverters and Gensets Options for Specifying the Reserve Power Setpoint of the Gensets Configuring PV Power Plant Management FSC20-BA-en-21 User Manual

5 SMA Solar Technology AG Table of Contents 8.5 Setting the Control of the Grid Feed-In System History Overview of the Data Structure Viewing System History Data Starting and Stopping the System Stopping the SMA Fuel Save Controller and PV Power Plant Starting the PV Power Plant and SMA Fuel Save Controller Restarting the SMA Fuel Save Controller and PV Power Plant Installing a Valid Software License Cleaning Contact User Manual FSC20-BA-en-21 5

6 1 Information on this Document SMA Solar Technology AG 1 Information on this Document 1.1 Validity This document is valid for the device type FSC-20-M (SMA Fuel Save Controller 2.0) from software version Target Group The tasks described in this document must only be performed by qualified persons. Qualified persons must have the following skills: Training in how to deal with the dangers and risks associated with installing and using electrical devices and installations Training in the installation and commissioning of electrical devices and installations Knowledge of all applicable standards and directives Knowledge of how the SMA Fuel Save Controller works and is operated Knowledge of and compliance with this document and all safety information 1.3 Additional Information Links to additional information can be found at Document title and content SMA FUEL SAVE CONTROLLER Modbus Interface Information on the commissioning and configuration of the SMA Modbus interface "Gensets in PV Diesel Hybrid Systems with SMA Fuel Save Controller 2.0" Communication interface requirements and Genset Controller configuration Document type Technical Information Technical Information 1.4 Symbols Symbol Explanation Indicates a hazardous situation which, if not avoided, will result in death or serious injury Indicates a hazardous situation which, if not avoided, can result in death or serious injury Indicates a hazardous situation which, if not avoided, can result in minor or moderate injury Indicates a situation which, if not avoided, can result in property damage Information that is important for a specific topic or goal, but is not safety-relevant Indicates a requirement for meeting a specific goal Desired result A problem that might occur 6 FSC20-BA-en-21 User Manual

7 SMA Solar Technology AG 1 Information on this Document 1.5 Typographies Typography Use Example bold Display messages Parameter Terminals Slots Elements to be selected Elements to be entered Connect the insulated conductors to the terminals X703:1 to X703:6. In the Select language dropdown list, select the desired language. > Several elements that are to be selected Open the dialog box Change Password via the following path Settings > Change Password. [Button] [Key] Button that is to be selected or clicked on Press the button [Change my Password]. 1.6 Nomenclature Complete designation SMA Fuel Save Controller 2.0 Sunny Tripower, Sunny Central CP XT, Sunny Central Storage Electric generator with combustion engine System for the regulation and control of electric generators with combustion engine Designation in this document Fuel Save Controller Inverters Genset Genset controller User Manual FSC20-BA-en-21 7

8 2 Safety SMA Solar Technology AG 2 Safety 2.1 Intended Use Together with SMA inverters, the Fuel Save Controller is a system solution for the installation of PV diesel hybrid systems through the integration of PV power plants into local utility grids based on gensets. The Fuel Save Controller continuously monitors the power output of the SMA inverters as well as the operating state of the gensets and loads. On this basis, the SMA Fuel Save Controller controls the SMA inverters and adjusts its output power, where necessary. This will ensure a stabile operation of the PV diesel hybrid system. Only use gensets in conjunction with the Fuel Save Controller which fulfill the reverse power limits of the Fuel Save Controller. The power management and the communication interface of the gensets must be compatible with the Fuel Save Controller for optimal operation of the PV diesel hybrid system. Therefore, the combined use of the Fuel Save Controller and the gensets must be coordinated with SMA Solar Technology AG (see technical information "Gensets in PV Diesel Hybrid Systems with SMA Fuel Save Controller 2.0"). The current and voltage measuring of the SMA Fuel Save Controller is designed for four-conductor utility grids with three line conductors and one neutral conductor as well as for three-conductor utility grids with three line conductors. If another grid type is used, the connection of the current transformers must be coordinated with SMA Solar Technology AG. The Fuel Save Controller has a Modbus/TCP and CAN interface for communicating with peripheral devices. Ensure that all communication between the Fuel Save Controller and the gensets takes place via either the Modbus/TCP interface or the CAN interface. The inverter data must only be retrieved via the Fuel Save Controller. During commissioning, the correct setup of the system network is documented. Unauthorized configuration changes of the system network after commissioning will result in any warranty or warranty claims becoming null and void. The product is suitable for indoor and outdoor use. Use this product only in accordance with the information provided in the enclosed documentation and with the locally applicable standards and directives. Any other application may cause personal injury or property damage. Alterations to the product, e.g. changes or modifications, are only permitted with the express written permission of SMA Solar Technology AG. Unauthorized alterations will void guarantee and warranty claims and in most cases terminate the operating license. SMA Solar Technology AG shall not be held liable for any damage caused by such changes. Any use of the product other than that described in the Intended Use section does not qualify as the intended use. The enclosed documentation is an integral part of this product. Keep the documentation in a convenient place for future reference and observe all instructions contained therein. Suitable personal protective equipment has to be worn by all persons working on or with the product. The type label must remain permanently attached to the product. 2.2 Safety Information This section contains safety information that must be observed at all times when working on or with the product. To prevent personal injury and property damage and to ensure long-term operation of the product, read this section carefully and observe all safety information at all times. 8 FSC20-BA-en-21 User Manual

9 SMA Solar Technology AG 2 Safety Danger to life from electric shock due to live voltage Danger of electric shock if work is executed incorrectly or under fault conditions. An electric shock can lead to death or serious injury. Disconnect the supply voltage and the measuring cables for the current- and voltage measurement before performing any work on the Fuel Save Controller. Observe the five safety rules when disconnecting the supply voltage: Disconnect from voltage sources. Ensure that the device cannot be reconnected. Ensure that no voltage is present. Ground and short-circuit the device. Cover and isolate any adjacent live components. Damage to the inverters, gensets or loads due to unauthorized access Parameters of the Fuel Save Controller can be set incorrectly due to unauthorized access. When parameters are set incorrectly, technical thresholds are being exceeded. An exceeding of technical thresholds can lead to damage of the inverters, gensets or loads. Protect the Fuel Save Controller from unauthorized access. Remove the key from the door locks and from the key switch. Store the keys in a safe place. Ensure that only qualified persons are able to set parameters on the Fuel Save Controller. Ensure that access via port forwarding from the external network to the router is deactivated in the Fuel Save Controller. Property damage due to dust intrusion and moisture penetration Dust intrusion or moisture penetration can damage the Fuel Save Controller. Protect the Fuel Save Controller against dust and moisture. Do not open the Fuel Save Controller at high humidity or high dust levels. Close the enclosure after performing any work on the Fuel Save Controller. Only use the supplied cable glands when inserting cables into the Fuel Save Controller. Destruction of gensets due to customer communication with the inverter The network capacities within the system network are reserved for communication between the Fuel Save Controller and the inverter. The system network can be overloaded due to unauthorized customer communication with the inverters. Control commands of the Fuel Save Controller cannot be sent to the inverter anymore when the system network is overloaded. This may lead to reverse currents and the destruction of gensets. Only operate the system network as documented in the acceptance test during commissioning. The inverter data can only be requested via Fuel Save Controller. User Manual FSC20-BA-en-21 9

10 3 Product Description SMA Solar Technology AG 3 Product Description 3.1 Functions Together with SMA inverters, the Fuel Save Controller is a system solution for the installation of PV diesel hybrid systems through the integration of PV power plants into local utility grids based on gensets. The Fuel Save Controller continuously monitors the power output of the SMA inverters as well as the operating state of the gensets and loads. On this basis, the SMA Fuel Save Controller controls the SMA inverters and adjusts its output power, where necessary. This will ensure a stabile operation of the PV diesel hybrid system. SCADA * AC Data transmission Internet Modbus TCP Measurement Battery system optional SENSOREN FUEL SAVE CONTROLLER DATA ACQUISITION MODULE SUNNY CENTRAL STORAGE * SMA PV INVERTER WITH PV ARRAY GENSETS UTILITY GRID (OPTIONAL) LOADS Figure 1: Regulation principle of PV systems with Fuel Save Controller The Fuel Save Controller performs the following tasks: Monitoring the power and operating state of the gensets Monitoring the loads and state of the local grid Calculating suitable values for the maximum power of the inverters according to defined parameter settings and the current status of gensets and loads Control and communication interface to the inverters Internal logging of all relevant system data (e.g. for local and remote monitoring) Emergency shutdown of the PV inverters under fault conditions in the PV diesel hybrid system The basic configuration enables communication with one higher-level genset control system and inverters of the Sunny Tripower and Sunny Central CP series. Further devices (e.g. inverters of the Sunny Central Storage series) can be installed in consultation with SMA Solar Technology AG. To ensure system stability at all times, the Fuel Save Controller uses Modbus/TCP or CAN to monitor whether the gensets are connected to the local utility grid and what level of active power and reactive power the gensets are feeding into the grid. 10 FSC20-BA-en-21 User Manual

11 SMA Solar Technology AG 3 Product Description The Fuel Save Controller is equipped with a Modbus/TCP interface for local and remote monitoring as well as for the communication with peripheral devices. Depending on the configuration, it is possible to communicate with the following peripheral devices: A higher-level control system with up to eight gensets Controllers for up to eight gensets The power management and the communication interface of the gensets must be compatible with the Fuel Save Controller for optimal operation of the PV diesel hybrid system. Therefore, the combined use of the Fuel Save Controller and the gensets must be coordinated withsma Solar Technology AG (see technical information "Gensets in PV Diesel Hybrid Systems with SMA Fuel Save Controller 2.0"). up to 64 inverters a remote monitoring system (SCADA or user interface/ftp) The Fuel Save Controller is also equipped with a CAN interface for communicating with up to eight gensets. Ensure that all communication between the Fuel Save Controller and the gensets takes place via either the Modbus/TCP interface or the CAN interface. The Fuel Save Controller is not designed to communicate with gensets via the Modbus/ TCP interface and CAN interface at the same time. In combination with the system specifications defined during commissioning and the data from the load measurements and grid analyses, the Fuel Save Controller calculates power values for active power and reactive power suitable for the inverters. The power values are transmitted as setpoints to the PV inverters. For local and remote monitoring, the Fuel Save Controller logs data on the power and operating state of the inverters and the loads, and the power and operating state of the gensets. The logged data is saved in CSV format for 100 days and can be accessed via the integrated FTP server. The Fuel Save Controller is equipped with up to three internal measurement modules. Each measuring module has one measuring system for voltage measurement and two measuring systems for current measurement. All measuring systems records the measuring values via three conductors. During network analysis, the Fuel Save Controller uses the measured values. Further measuring systems can be implemented via an optional Data Acquisition Module in consultation with SMA Solar Technology AG. During commissioning of the Fuel Save Controller, the user has the possibility to activate various functions for stable and reliable operation such as minimum genset loading and power control range. In addition, it is possible to remotely monitor all relevant measurement data, process data and the current system status by means of SCADA or a webbased interface. User Manual FSC20-BA-en-21 11

12 3 Product Description SMA Solar Technology AG 3.2 Structure A B C FUEL SAVE CONTROLLER Figure 2: Fuel Save Controller Position A B C Designation Key switch Operation light repeater Warning light repeater 3.3 Key Switch Position Start Stop Description The Fuel Save Controller can be started via the Start position. Before the Fuel Save Controller can be stopped, ensure that the the current reserve power of the gensets is sufficient for supplying the power required by the loads. Genset overload may result in destruction of the gensets (see Section 10.1 "Stopping the SMA Fuel Save Controller and PV Power Plant", page 104). The Fuel Save Controller can be stopped Stopposition. 3.4 Light Repeaters The Operation und Warning light repeaters indicate the current status of the Fuel Save Controller. Operation light repeater Warning light repeater Both light repeater are flashing alternately. Operating state BOOT INIT Description The Fuel Save Controller is starting. The Fuel Save Controller establishes the communication to the other devices in PV diesel hybrid system. Flashing every 1 seconds Off STANDBY The Fuel Save Controller is in standby mode. 12 FSC20-BA-en-21 User Manual

13 SMA Solar Technology AG 3 Product Description Operation light repeater Warning light repeater Operating state Description Flashing every 0.5 seconds Off MANUAL The Fuel Save Controller is in manual mode. The setpoint values for the active and reactive power of the inverters are set via the user interface of the Fuel Save Controller. glowing Off OPERATE The Fuel Save Controller is in automatic mode and specifies the setpoints for the active and reactive power of the inverters. If the Fuel Save Controller is connected to a SCADA system, it will use the setpoints from the SCADA system in automatic mode. glowing Flashing every 1 seconds SAFETY The Fuel Save Controller has switched to a safe state following an error. The PV power can be reduced compared with operation in automatic mode. Off glowing ERROR An error has occurred in the Fuel Save Controller. Automatic operation of the PV diesel hybrid system is interrupted. 3.5 Type Label The type label clearly identifies the product. The type label is located on the right-hand side of the enclosure. You will find the following information on the type label: Device type (Type) Serial number (Serial No.) You will require the information on the type label to use the product safely and when seeking customer support from Service (see Section 12 "Contact", page 108). Symbols on the Type Label Symbol Explanation Danger to life due to electric shock The product operates at high voltages. All work on the product must be carried out by qualified persons only. Beware of a danger zone This warning symbol indicates a danger zone. Be particularly vigilant and cautious when working on the product. Observe the documentation Observe all documentation supplied with the product. WEEE designation Do not dispose of the product together with the household waste but in accordance with the disposal regulations for electronic waste applicable at the installation site. User Manual FSC20-BA-en-21 13

14 4 User Interface SMA Solar Technology AG 4 User Interface 4.1 Requirements for the user interface display A computer for displaying the user interface must be available. The computer must be connected to the SMA Fuel Save Controller via Ethernet. A web browser must be installed on the computer. JavaScript must be enabled in the web browser. In the operating system and in the web browser, anti-aliasing must be activated. The IP address of the Fuel Save Controller sent from the DHCP server to the local network of the PV system operator must be known. Supported web browsers: Microsoft Internet Explorer from version 9 Google Chrome from version 40 Display resolution: Minimum: 800 pixels x 600 pixels Recommended: from 1280 pixels x 1024 pixels 4.2 User Groups and User Rights The SMA Fuel Save Controller distinguishes between the user groups User and Installer. User rights User group Retrieve values of the PV diesel hybrid system and its subsystems, e.g. the gensets, the PV power plant or the load controller (see Section 6 "System Monitoring", page 26) User Installer Set parameters of the PV diesel hybrid system (see Section 7 "System Settings", page 46) Save, load and delete system settings (see Section 7, page 46) Set control functions of the PV diesel hybrid system and subsystems (see Section 8 "System Control", page 74) Retrieve data for acquisition of measured values (see Section 9 "System History", page 103) Retrieve event and error messages (see Section 9 "System History", page 103) 4.3 Requirements for a Secure System Password The system password entered for your user group when you log into the Fuel Save Controller user interface for the first time is a default system password. For security reasons, you should change the default system password as soon as possible following commissioning (see Section 5.2, page 22). 14 FSC20-BA-en-21 User Manual

15 SMA Solar Technology AG 4 User Interface You can increase the security of your system password with the following measures: Select system passwords containing at least eight characters. Use combinations of upper-case and lower-case letters, special characters and numbers. Do not use names or common words (e.g., "dog", "cat", "house"). For the system password, avoid using words that have any personal relevance to you such as the names of persons or pets, personnel numbers, identification numbers or car license plates. Do not repeat names or words (e.g., "househouse" or "catcat"). Do not use combinations of numbers or letters in the same order as they appear on your keyboard (e.g., "12345", "qwert"). 4.4 Design of the User Interface A D B C Figure 3: User interface of the Fuel Save Controller (example) Position Designation Explanation A Header Enables access to the main functions of the user interface (see Section 4.5 "Buttons in the header", page 16). Displays the current path (e.g., Home > Stations Plant Overview). B Content area Depending on the selected page, display values, adjustable parameters or a combination of display values and adjustable parameters are shown in the content area. Additional buttons are available on individual pages. User Manual FSC20-BA-en-21 15

16 4 User Interface SMA Solar Technology AG Position Designation Explanation C Status bar Displays the following information: Graphical display of the operating state (see Section 3.4 "Light Repeaters", page 12) Status: Operating state of the Fuel Save Controller: BOOT: Fuel Save Controller is starting. INIT: Fuel Save Controller is establishing communication with the other devices in the PV diesel hybrid system. STANDBY: Fuel Save Controller is in standby mode. MANUAL: Fuel Save Controller is in manual mode. The setpoint values for the active and reactive power of the PV power plant are set via the user interface. OPERATE: Fuel Save Controller is in automatic mode and specifies the setpoints for the active and reactive power of the PV power plant. If the Fuel Save Controller is connected to a SCADA system, it will use the setpoints from the SCADA system in automatic mode. SAFETY: The Fuel Save Controller has switched to a safe state following an error. The PV power can be reduced compared with operation in automatic mode. ERROR: There is an error in the Fuel Save Controller. Automatic operation of the PV diesel hybrid system is interrupted. Access level: User group that you are logged in with Software version: Current software version of the Fuel Save Controller Serial Number: serial number of the device Date and location D Page and menu selection Access to the various pages and menus of the user interface 4.5 Buttons in the header Symbol Designation Description Home Use this symbol to access the home page. Return Use this symbol to go back to the previous page. Plant* Wizard* Control * Use this symbol to call up the Hybrid Plant Overview page. The Hybrid Plant Overview page shows an overview of the display values for the PV diesel hybrid system (see Section 6.1, page 26). Use this symbol to call up the configuration wizard and edit the system settings (see Section 7, page 46). Use this symbol to set various parameters relating to system control (see Section 8, page 74). 16 FSC20-BA-en-21 User Manual

17 SMA Solar Technology AG 4 User Interface Symbol Designation Description Export* Logout Use this symbol to call up the following functions: Save current system settings (see Section 7.8.2, page 71) Load saved system settings (see Section 7.8.3, page 72) Delete saved system settings (see Section 7.8.4, page 73) Use this symbol to log out of the system. * To use this button you must be logged in as an Installer. 4.6 Home Page for User Group "User" Figure 4: Home page for user group User (example) The home page for user group User shows an overview of all display values of the PV diesel hybrid system (see Section 6.1 "Retrieving Display Values of the Entire PV Diesel Hybrid System", page 26). User Manual FSC20-BA-en-21 17

18 4 User Interface SMA Solar Technology AG 4.7 Home Page for User Group "Installer" Figure 5: Home page for user group Installer (example) Button Description Plant Overview Access to system monitoring(see Section 6, page 26) Control Functions Access to system control (see Section 8, page 74) Configuration Wizard Access to system settings (see Section 7, page 46) Parameter Files Save current system settings and load/delete saved system settings (see Section 7.8, page 71) 4.8 Configuration Wizard Structure of the Configuration Wizard To use the configuration wizard you must be logged in as an Installer. 18 FSC20-BA-en-21 User Manual

19 SMA Solar Technology AG 4 User Interface A B Figure 6: Home page of the configuration wizard (example) Position Designation Explanation A Automatic configuration The automatic configuration wizard guides you through the configuration of the entire PV diesel hybrid system. During initial commissioning of the PV diesel hybrid system the automatic configuration wizard must be run completely. In the Manual configuration area the completion status for each subsystem is displayed in %. Once the completion status has reached 100% for all subsystems, automatic configuration is completed. B Manual configuration After initial commissioning, use the manual configuration wizard to carry out settings on individual subsystems: Buttons in the Configuration Wizard Utility grid (see Section 7.1, page 46) Gensets (see Section 7.2.7, page 53) PV power plant (see Section 7.3, page 54) Storage system (see Section 7.4, page 57) Measurement devices (see Section 7.5, page 59) To use the configuration wizard you must be logged in as an Installer. Temperature and irradiation sensors (see Section 7.6, page 67) Digital inputs and outputs (see Section 7.7, page 68) In addition, the manual configuration wizard provides an overview of the current system settings. Button Add new item Description Add device type, e.g. a type of inverter User Manual FSC20-BA-en-21 19

20 4 User Interface SMA Solar Technology AG Button Adjust Apply Continue Wizard Delete config. Discard Done Remove item Start View Description Adjust configuration of a subsystem Save system settings This saves all system settings in the active dialog. If you exit the active dialog without saving the system settings, any system settings made since the last save will be discarded. Continue to the next dialog Delete configuration of a subsystem Discard system settings Any system settings made in the active dialog and not saved by pressing the Apply button will be discarded. Close the active dialog and switch to the overview of current system settings Remove device type, e.g. a type of inverter Start automatic configuration wizard Show overview of current system settings Setting Parameters Risk of damage to devices by entry of incorrect parameters Incorrect parameters may damage devices and result in system malfunctions in the PV diesel hybrid system. All adjustable parameters are protected by the password of the user group Installer. Only a qualified person is permitted to set and adjust parameters. Only give the password for the user group Installer to qualified persons. Change the default passwords as soon as possible. Read the description of the parameters carefully and follow all instructions relating to the settings options of the parameters. Procedure: 1. Log in as Installer (see Section 5.1, page 21). 2. Select a menu via the page and menu selection. 3. Select desired parameter in the content area: To change parameters with an entry field, enter new values and press Enter after each entry. By pressing Enter, the entered value is adopted in the user interface of the Fuel Save Controller. To change parameters with a checkbox, activate the required checkbox. To change parameters with a drop-down list, select the desired value in the appropriate drop-down list. 4. If the border of the input field flashes red, check the input and set the parameter to a valid value. To do this, repeat the previous step. 5. To adopt current parameter settings in the control of the Fuel Save Controller, select the [Apply] button. 6. To discard current parameter settings, select the [Discard] button. 20 FSC20-BA-en-21 User Manual

21 SMA Solar Technology AG 5 Getting Started 5 Getting Started 5.1 Logging In and Out of the User Interface Log in User group Default password User 0000 Installer 1111 Requirements: The IP address of the Fuel Save Controller (defined during commissioning) and the subnet mask must be known. The computer used to display the user interface must have an IP address located in the same subnet as the IP address of the Fuel Save Controller. Example: If the IP address of the Fuel Save Controller has been set e.g. to , the IP address for the computer with the user interface could be e.g It is important that the subnet sections of both IP addresses tally. Risk of damage to devices by entry of incorrect parameters Incorrect parameters may damage devices and result in system malfunctions in the PV diesel hybrid system. All adjustable parameters are protected by the password of the user group Installer. Only a qualified person is permitted to set and adjust parameters. Only give the password for the user group Installer to qualified persons. Change the default passwords as soon as possible. Read the description of the parameters carefully and follow all instructions relating to the settings options of the parameters. Procedure: 1. Enter the IP address of the Fuel Save Controller marked with the extension :8080 (e.g., :8080) in the address bar of the web browser and press Enter. The home page of the user interface appears (see Section 4.6, page 17). 2. Log into user group User or Installer with the appropriate password for the user group: When logging in for the first time, enter the default password of your user group. If you have already changed the default password of your user group, enter the changed password. Press the enter key. Select the button [Login]. The home page of the selected user group appears. The message Login error appears. The maximum number of logins for the selected user group has been reached. To cancel the login, answer the question Would you like to send a force log in request? with No. User Manual FSC20-BA-en-21 21

22 5 Getting Started SMA Solar Technology AG To resume the login, answer the question Would you like to send a force log in request? with Yes. This notifies users that are already logged in of your request. You will then receive a message regarding the success or failure of your request. Log out A maximum of 5 Usersand 1 Installer can be logged into the user interface of the Fuel Save Controller simultaneously. Users are not automatically logged out by closing the web browser. Therefore we recommend always logging out of the user interface prior to closing the web browser. If a user has not shown any activity on the user interface for more than 30 minutes, this user will be warned that he is about to be logged out automatically. If this warning is not acknowledged within 10 seconds, the user is automatically logged out. Procedure: Click the logout link in the header. 5.2 Changing Passwords Figure 7: Dialog box Change Password Requirements: To change the password for the user group User, you must be logged in as User. To change the password for the user group Installer, you must be logged in as Installer. Procedure: 1. Open the Plant Overview menu via the page and menu selection. 2. Open the Change password menu via the page and menu selection. To do this, select the down arrow button on the scroll bar next to the page and menu selection. 3. Enter the current password in the entry field Current Password: and press the enter key. 4. Enter the new password in the entry field New Password: and press the enter key. 5. Enter the current password in the entry field Please repeat new Password: and press the enter key. 6. Select the [Apply] button. 5.3 Setting the User Interface Language 1. Open the Plant Overview menu via the page and menu selection. 2. Open the General Settings menu via the page and menu selection. 3. In the Select language drop-down list, select the desired language. 4. If you are logged in as User, proceed as follows: 5. Select the [Apply] button. 22 FSC20-BA-en-21 User Manual

23 SMA Solar Technology AG 5 Getting Started 5.4 Setting the System Time Figure 8: SNTP Settings: System time settings Parameter Description Value Use SNTP client UTC time zone offset Activates the automatic synchronization of the system time over the Internet with SNTP (Simple Network Time Protocol) Deviation in hours from UTC (Coordinated Universal Time) This parameter must be set according to the time zone applicable at the installation site. -12 to +14 Date Manual date input in yyyy-mm-dd format Time Manual time input in hh-mm-ss format Address of SNTP server Internet address of an SNTP server Time interval Start SNTP server Time interval to which the system time of the Fuel Save Controller is to be synchronized via the SNTP server Activates the use of the Fuel Save Controller as an SNTP server If the SNTP server of the Fuel Save Controller is activated, the SNTP server specifies the system time for other devices in the photovoltaic diesel hybrid system. In these devices, SNTP must be activated and the IP address of the Fuel Save Controller must be entered as an SNTP server. User Manual FSC20-BA-en-21 23

24 5 Getting Started SMA Solar Technology AG Procedure: 1. Open the Plant Overview menu via the page and menu selection. 2. Open the General Settings menu via the page and menu selection. 3. Set the parameter UTC time zone offset according to the local time zone (see Section 4.8.3, page 20). 4. Carry out the following steps to arrange for the system time to be specified automatically: Activate the Use SNTP client checkbox. Set the parameters Address of SNTP server and Time interval to the desired values. 5. Carry out the following steps in order to set the system time manually: Deactivate the Use SNTP client checkbox. Set the parameters Date and Time to the desired values. 6. In order to set the Fuel Save Controller for use as an SNTP server for other devices, activate the Start SNTP server checkbox. 7. Select the [Apply] button. 5.5 Setting Up Access via the Internet In order to provide quick assistance in the event of a disturbance, the SMA Service requires access to the operating data of the PV diesel hybrid system. Access to the operating data enables a detailed analysis of the existing error and therefore speeds up troubleshooting. The Fuel Save Controller is prepared to establish a secure VPN connection to Service. The VPN connection is based on the IPsec protocol and is established by the FSC router (router in the Fuel Save Controller). To allow smooth operation of the Fuel Save Controller, access from the local network of the PV system operator to the Fuel Save Controller is only permitted for the following applications: FTP interface to the Fuel Save Controller via port 21 of the TCP protocol Web browser for the user interface of the Fuel Save Controller via port 80 of the TCP protocol Interface of the Fuel Save Controller to the SCADA system via port 502 of the TCP protocol The FSC router enables these applications by means of port forwarding via the system router (router in the PV system operator's local network with access to the Internet). Ensure data security in networks When accessing via the Internet, there is a risk that unauthorized users may access and manipulate the data or devices in your system. Appropriate protective measures can include the following: Set up a firewall. Close unnecessary network ports. Only enable remote access via VPN tunnel. Do not set up port forwarding at the communication port in use. Requirement for VPN connection: The system router must enable exclusive access for the FSC router via ports 500 and 4500 of the UDP protocol for IP address of the SMA Solar Technology AG. 24 FSC20-BA-en-21 User Manual

25 SMA Solar Technology AG 5 Getting Started Destruction of gensets due to customer communication with the inverter The network capacities within the system network are reserved for communication between the Fuel Save Controller and the inverter. The system network can be overloaded due to unauthorized customer communication with the inverters. Control commands of the Fuel Save Controller cannot be sent to the inverter anymore when the system network is overloaded. This may lead to reverse currents and the destruction of gensets. Only operate the system network as documented in the acceptance test during commissioning. The inverter data can only be requested via Fuel Save Controller. Procedure: 1. Configure the system router so that the secure VPN connection of the Fuel Save Controller is enabled for Service. 2. Make sure that the FSC router has established an Internet connection. 3. Call Service (see Section 12 "Contact", page 108). Service will check whether the FSC router has established a VPN connection. User Manual FSC20-BA-en-21 25

26 6 System Monitoring SMA Solar Technology AG 6 System Monitoring 6.1 Retrieving Display Values of the Entire PV Diesel Hybrid System Overview of the display values G A F B E C D Figure 9: Hybrid Plant Overview: Overview of the display values for the PV diesel hybrid system (example) Position Display group Display value Description A Load Active power Current active power of the loads in kw Reactive power Total energy Current reactive power of the loads in kvar Energy consumed by the loads in MWh B Distribution of electrical energy Total energy Energy consumed by the loads in MWh Genset energy Share of genset energy consumed by the loads in % PV energy Share of the load energy consumption supplied by the PV power plant, in % C Distribution of electrical power Total active power Active power currently consumed by the loads in kw Genset power Share of genset active power currently consumed by the loads in % PV power Share of PV power plant active power currently consumed by the loads in % 26 FSC20-BA-en-21 User Manual

27 SMA Solar Technology AG 6 System Monitoring Position Display group Display value Description D Irradiation and temperature sensors Ambient temp. Ambient temperature in C Module temp. Temperature of the PV modules in C Global irradiation PV solar irradiation in W/m 2 Power MPP Active power output at the maximum power point E Storage system Active Power Current active power of the storage system in kw Reactive power Total energy Active Power setpoint Reactive power setpoint Current reactive power of the storage system in kvar Energy of the storage system fed into the hybrid grid in MWh Current setpoint for the active power of the storage system in kw Current setpoint for the reactive power of the storage system in kvar F Gensets Active power Current active power of the gensets in kw Reactive power Total energy Reserve power setpoint Current reactive power of the gensets in kvar Genset energy fed into the hybrid grid in MWh Setpoint for the reserve power of the gensets G PV power plant Active power Current active power of the PV power plant in kw Reactive power Total energy Active power setpoint Reactive power setpoint Current reactive power of the PV power plant in kvar PV power plant energy fed into the hybrid grid in MWh Setpoint for the active power of the PV power plant Setpoint for the reactive power of the PV power plant Procedure: 1. To do this you must be logged in as Installer: Go to the menu Plant Overview via the page and menu selection. 2. Choose Stations > General Overview via the page and menu selection. 6.2 Retrieving Genset Display Values The Generator system overview page contains the display values for all of the gensets in the PV diesel hybrid system. The genset names are assigned during commissioning. User Manual FSC20-BA-en-21 27

28 6 System Monitoring SMA Solar Technology AG Overview of the display values Figure 10: Generator system overview: Display values of the gensets (example) Display value Description Value Explanation Selected generator Currently displayed genset Nominal power Active Power Power factor Energy fed in Nominal power of the selected genset in kw Current active power of the selected genset in kw Power factor: specifies the ratio of active power to apparent power. Grid feed-in: Energy fed into the hybrid grid in MWh 28 FSC20-BA-en-21 User Manual

29 SMA Solar Technology AG 6 System Monitoring Display value Description Value Explanation Mode Operating mode of the selected genset STOP Genset is out of service (e.g., for maintenance work) MANUAL Genset is in manual mode. AUTO Genset is in automatic mode and can be activated by means of the autostart signal. LDSS The genset is activated and deactivated via the genset system s power management function. GCB status Current status of the circuit breakers that connect the genset to the hybrid grid CLOSED OPEN The genset is connected to the hybrid grid. The genset is not connected to the hybrid grid. Procedure: 1. To do this you must be logged in as Installer: Go to the menu Plant Overview via the page and menu selection. 2. Choose Stations > Genset System via the page and menu selection. The designations of all the gensets are displayed in the page and menu selection. 3. Select the desired genset via the page and menu selection. User Manual FSC20-BA-en-21 29

30 6 System Monitoring SMA Solar Technology AG 6.3 Retrieving PV Power Plant Display Values Overview of the display values Figure 11: Photovoltaic system overview: PV power plant display values (example) Display value Description Value Explanation Selected inverter Currently displayed inverter Nominal power Active power AC voltage DC voltage Reactive power Active power setpoint Nominal power of the inverter in kw Current active power of the inverter in kw AC output voltage of the inverter in V DC input voltage of the inverter in V Current reactive power of the inverter in kvar Setpoint for the current active power as a ratio of nominal power, in % 30 FSC20-BA-en-21 User Manual

31 SMA Solar Technology AG 6 System Monitoring Display value Description Value Explanation Reactive power setpoint Energy fed in Setpoint for the current reactive power as a ratio of nominal power, in % Grid feed-in: Energy fed into the hybrid grid in MWh Operational state Current operating mode of the inverter STOP WAIT FOR DC The inverter is switched off. The inverter is waiting for DC input voltage. WAIT FOR AC The inverter is waiting for an available local grid at the AC output. COM ERROR Communication between inverter and Fuel Save Controller has failed. WAIT FOR SET- POINT The inverter is waiting for a setpoint from the Fuel Save Controller. IN OPERATION The inverter is feeding in. WARNING A warning has occurred in the inverter. ERROR An error has occurred in the inverter. Device Error Error in the inverter See inverter documentation Procedure: 1. To do this you must be logged in as Installer: Go to the menu Plant Overview via the page and menu selection. 2. Choose Stations > PV System via the page and menu selection. The designations of all the inverters are displayed in the page and menu selection. 3. Select the desired inverter via the page and menu selection. User Manual FSC20-BA-en-21 31

32 6 System Monitoring SMA Solar Technology AG 6.4 Retrieving Storage System Display Values The display values can only be retrieved on this page if a battery inverter has been installed. Figure 12: Storage system display values Display value Description Value Explanation Selected inverter State of Charge (SOC) Active Power Reactive Power Active power setpoint Reactive power setpoint Maximum active power charge Maximum active power discharge Currently displayed battery inverter State of charge of the battery in % Current active power of the battery inverter in kw Current reactive power of the battery inverter in kvar Setpoint for the active power of the battery inverter in kw Setpoint for the reactive power of the battery inverter in kvar Maximum charge power of the battery inverter in kw Maximum discharge power of the battery inverter in kw 32 FSC20-BA-en-21 User Manual

33 SMA Solar Technology AG 6 System Monitoring Display value Description Value Explanation BSC operation mode status Operating mode of the Battery System Controller The Battery System Controller is the communication interface of the battery inverter to the Battery Management System and the Fuel Save Controller. STOP WAIT PQ The storage system is switched off. The storage system is verifying its connection conditions. The storage system is connected and is processing the active and reactive power setpoints. FAILURE An error has occurred in the storage system. UNKNOWN The status of the storage system cannot be read. Device status Status of the battery inverter STOP The battery inverter is switched off. IN OPERATION ERROR WAIT WARNING COM ERROR The battery inverter is feeding in. An error has occurred in the battery inverter. The battery inverter is waiting for setpoints. A warning has occurred in the battery inverter. An error has occurred in the communication between the battery inverter and the Fuel Save Controller. Device error code Storage system error For information on potential causes or corrective measures, see the documentation for the battery inverter 6.5 Retrieving Display Values from Measurement Devices The values obtained from the measurement modules of the Fuel Save Controller are displayed on the Measurement system overview page. User Manual FSC20-BA-en-21 33

34 6 System Monitoring SMA Solar Technology AG Overview of the display values Figure 13: Display values of the measurement device (example) Display value Description Value Explanation Selected measurement device Currently displayed measurement system Internal Measurement Measurement devices connected directly to the Fuel Save Controller. DAQ Measurement devices connected to the Fuel Save Controller via a Data Acquisition Module. Active power Active power L1/L2/ L3 Reactive power Calculated total active power in kw Calculated active power for L1/ L2/L3 Calculated reactive power in kvar Cos phi L1/L2/L3 Calculated power factor for L1/ L2/L3 Frequency Measured frequency in Hz Voltage Measured voltage in V Energy consumed Energy consumption 34 FSC20-BA-en-21 User Manual

35 SMA Solar Technology AG 6 System Monitoring Display value Description Value Explanation Energy delivered Energy generation Digital Input #1 Status of the digital input 1 on the Data Acquisition Module OPEN The digital input is switched off (contact is open). CLOSED The digital input is switched on (contact is closed). Digital Input #2 Status of the digital input 2 on the Data Acquisition Module OPEN The digital input is switched off (contact is open). CLOSED The digital input is switched on (contact is closed). List of measured devices List containing all the devices in the PV diesel hybrid system to which the currently displayed measurement device is assigned. Procedure: 1. To do this you must be logged in as Installer: Select the menu Plant Overview via the page and menu selection. 2. Select Stations > Measurements via the page and menu selection. The designations of all the measurement systems are displayed in the page and menu selection. 3. Select Internal Measurement or DAQ from the page and menu selection. 4. Select the [Show] button in the List of measured device bar. 5. In the Selected measurement points menu, select the desired measurement system and select the [Close] button. 6.6 Viewing Data Records via the PV Diesel Hybrid System On the Historical Data page, the SMA Fuel Save Controller depicts a selection of power values over time. Different analysis periods can be selected here: the last minute the last 5 minutes the last hour the last 24 hours User Manual FSC20-BA-en-21 35

36 6 System Monitoring SMA Solar Technology AG Overview of data records: Figure 14: Diesel, PV data: Overview of data records of the PV power plant, storage system, loads, and gensets (example) Display value Engaged nominal genset power Load active power PV active power Genset active power Battery active power Description Sum of nominal power of all active gensets in kw Active power consumed by the loads in kw Active power of the PV power plant in kw Active power supplied by the gensets in kw Active power supplied by the storage system in kw Procedure: 1. To do this you must be logged in as Installer: Go to the menu Plant Overview via the page and menu selection. 2. Choose Visualizations > Diesel, PV Data via the page and menu selection. 3. Select the desired period (e.g., Show last hour) via the drop-down list. 36 FSC20-BA-en-21 User Manual

37 SMA Solar Technology AG 6 System Monitoring 6.7 Monitoring the status of the digital switching inputs and outputs Figure 15: Overview of the switching inputs and outputs Digital inputs: Display value Description Value Explanation Genset # Status (#1 to #6) Current status of the circuit breaker that connects the genset or the utility grid to the hybrid grid CLOSED OPEN Circuit breaker is closed. Circuit breaker is open. Fast stop Status of digital switching input DI7 CLOSED Section 7.7, page 68 OPEN Grid status Current status of the circuit breaker that connects the genset or the utility grid to the hybrid grid CLOSED OPEN Circuit breaker is closed. Circuit breaker is open. Custom #1 Custom #2 Reserve (see Fuel Save Controller installation manual) Reserve (see Fuel Save Controller installation manual) Power good Status of the supply voltage CLOSED Supply voltage is on. OPEN Supply voltage not found. User Manual FSC20-BA-en-21 37

38 6 System Monitoring SMA Solar Technology AG Display value Description Value Explanation Key switch status Status of key switch CLOSED The key switch is in the Start position. OPEN The key switch is in the Stop position. Digital outputs: Display value Description Value Explanation Operation LED Status of the Operation light repeater CLOSED OPEN The light repeater is lit up. The light repeater is off. Warning LED Status of the Warning light repeater CLOSED OPEN The light repeater is lit up. The light repeater is off. Inverter fast stop Custom #1 Status of the signal generator for disconnecting the PV power plant from the local utility grid Status of the signal generator for connecting the PV power plant from the local utility grid CLOSED OPEN CLOSED OPEN The values CLOSED and OPEN are determined when connecting the contactors to the switching outputs of the Fuel Save Controller (see the Fuel Save Controller installation manual). Procedure: 1. To do this you must be logged in as Installer: Go to the menu Plant Overview via the page and menu selection. 2. Choose Visualizations > Digital IO via the page and menu selection. 38 FSC20-BA-en-21 User Manual

39 SMA Solar Technology AG 6 System Monitoring 6.8 Device Information Figure 16: Device information overview Name line FSC serial number State of the application MSys Version CPU temperature Description Indication of the serial number of the Fuel Save Controller Display of the status of the Fuel Save Controller application Indication of the installed version of the operating system Display of the processor temperature in the Fuel Save Controller User Manual FSC20-BA-en-21 39

40 6 System Monitoring SMA Solar Technology AG 6.9 Processing Status Messages Figure 17: Alarm list in the SMA Fuel Save Controller (example) Name of the column Timestamp Status Description Time at which the message was recorded: Event Warning If a warning occurs, automatic operation of the PV diesel hybrid system is continued. Error If an error occurs, automatic operation of the PV diesel hybrid system is discontinued. Warning or error no longer exists. Event, warning or error has occurred. Code Description Four-digit number of the reported event, warning or error Description of the reported event, warning or error 40 FSC20-BA-en-21 User Manual

41 SMA Solar Technology AG 6 System Monitoring Using the scrollbar If not all messages can be displayed on the user interface, a scrollbar appears on the Alarm list page. You can only use this scrollbar by means of the arrow keys. Procedure: To call up messages recorded at an earlier time, press the up row key. To call up messages recorded at a later time, press the down arrow key. 1. To do this you must be logged in as Installer: Go to the menu Plant Overview via the page and menu selection. 2. Choose Operations > Alarms via the page and menu selection. 3. Select the required message types. To do this, activate the checkboxes displayed below all the required message types, and deactivate the checkboxes for all message types that are not required. Example: Calling up errors and warnings Finally, in order to display the errors and warnings, perform the following steps: Activate the Errors and Warnings checkboxes. Deactivate the Info, Battery events, System events, Genset events, PV events, and Meas events checkboxes. 4. Processing reported errors: Ascertain and remove the cause of the error. To do so, contact the SMA Service Line (see Section 12, page 108). Once the cause of the error has been eliminated, acknowledge the error message. To do so, select the [Acknowledge] button. 5. Ascertain the causes of reported warnings and take corrective action. To do so, contact the SMA Service Line (see Section 12, page 108). 6. To acknowledge reported warnings or events, select the [Acknowledge] button. User Manual FSC20-BA-en-21 41

42 6 System Monitoring SMA Solar Technology AG 6.10 Operating Mode and Setpoints Overview of Operating Modes and Setpoints A B C D Figure 18: Overview of current operating state of the Fuel Save Controller (example) 42 FSC20-BA-en-21 User Manual

43 SMA Solar Technology AG 6 System Monitoring Position Display group Parameters / Functions Description A Change control mode Current operation Shows the current operating mode of the SMA Fuel Save Controller: Automatic mode (see Activate automatic mode) The Fuel Save Controller normally operates in Automatic mode. The SMA Fuel Save Controller calculates the setpoints for the PV power plant, the battery and the reserve power to be retained by the gensets. Manual mode (see Activate manual mode) Manual mode is normally used only when the SMA Fuel Save Controller is being commissioned. In Manual mode, the reserve power to be kept by the gensets is specified via the user interface. If the Fuel Save Controller remains five minutes in the operating mode Manual and no user is logged in, the Fuel Save Controller switches automatically to the operating state Standby via the SLOW STOP mode. SLOW STOP mode The Fuel Save Controller stops the PV inverter (see Section 10.1, page 104). Activate automatic mode Activate Automatic mode (see Section , page 44) Activate manual mode Activate Manual mode (see Section , page 44) Enable SCADA to send setpoints Activate setpoint specification by a SCADA system (see Section , page 45) B System setpoints / system recommendation Shows the values that the Fuel Save Controller would currently send to the genset, PV and battery components if the Fuel Save Controller were in automatic mode. Genset reserve power PV active power PV reactive power Battery active power Battery reactive power Current setpoint for the reserve power of the gensets in kw Current setpoint for the active power of the PV power plant in kw Current setpoint for the reactive power of the PV power plant in kvar Current setpoint for the active power of the storage system in kw Current setpoint for the reactive power of the storage system in kvar User Manual FSC20-BA-en-21 43

44 6 System Monitoring SMA Solar Technology AG Position Display group Parameters / Functions C Live values Calculated system load Running genset capacity PV production Genset power production Available spinning reserve Battery active power D System warnings Genset Overload Genset Min- Load Genset CosPhi Genset Spinnig Reserve Description Calculated active power requirement of the loads in kw Sum of nominal power of all active gensets in kw Active power of the PV power plant in kw Active power of the gensets in kw Current reserve power of the gensets in kw Active power of the storage system in kw The genset system is overloaded. This minimum genset load has fallen below the threshold. The power factor of the genset system is outside the parameterized limits. The genset system does not provide the requested/required reserve power Displaying Setpoints and Actual Values 1. To do this you must be logged in as Installer: Go to the menu Plant Overview via the page and menu selection. 2. Choose Operations > Mode via the page and menu selection (see Section "Overview of Operating Modes and Setpoints", page 42) Configuring the Operating Mode Damage to the PV inverters, gensets, or loads caused by the input of incorrect setpoints In Manual mode, the setpoints for the PV inverters and the reserve power to be kept by the gensets are specified via the user interface. If the specifications are incorrect, the technical thresholds of the PV inverters, gensets, or loads can be exceeded. An exceeding of technical thresholds can lead to damage of the PV power plant, gensets or loads. For continuous operation of the Fuel Save Controller, always use the automatic operating mode. Only activate the manual operating mode in temporary and exceptional situations (e.g., when carrying out maintenance). In the operating mode, verify that the technical thresholds for PV inverters, gensets, and loads are being adhered to: For the manual operating mode, at least 2 persons must be present at all times and must be trained in the use of the manual operating mode. Both persons must continuously monitor the adherence to technical thresholds during manual operating mode via the Fuel Save Controller user interface. 44 FSC20-BA-en-21 User Manual

45 SMA Solar Technology AG 6 System Monitoring If the Fuel Save Controller remains five minutes in the operating mode Manual and no user is logged in, the Fuel Save Controller switches automatically to the operating state Standby via the SLOW STOP mode. Requirement: You must be logged in as Installer. Procedure: 1. Choose the menu Plant Overview via the page and menu selection. 2. Choose Operations > Mode via the page and menu selection (see Section "Overview of Operating Modes and Setpoints", page 42). 3. Select the [Activate] button in the Activate automatic mode bar to activate Automatic mode. 4. To activate Manual mode, select the [Activate] button in the Activate manual mode bar. 5. To deactivate Manual mode, activate Automatic mode or select the logout button in the header Specification of Setpoints for PV Power Plant by SCADA System When this function is active, a SCADA (Supervisory Control and Data Acquisition) system specifies the setpoints for the PV power plant and the reserve power to be retained by the gensets in the Fuel Save Controller. The Fuel Save Controller checks these setpoints. Should the setpoints issued by the SCADA system jeopardize the stability of the PV diesel hybrid system, they will be corrected by the Fuel Save Controller. Finally the setpoints are forwarded to the PV power plant by the Fuel Save Controller. For information on which Modbus registers are supported, see the technical information "SMA Modbus Interface" at For information on which of the supported SMA inverters support the Modbus interface of the Speedwire/Webconnect data module, refer to the datasheet "FSC20_Modbus-DB-en-10.xlsx" at Procedure: 1. To do this you must be logged in as Installer: Go to the menu Plant Overview via the page and menu selection. 2. Choose Operations > Mode via the page and menu selection (see Section "Overview of Operating Modes and Setpoints", page 42). 3. In the Control Mode area activate the Enable SCADA to send setpoints checkbox. User Manual FSC20-BA-en-21 45

46 7 System Settings SMA Solar Technology AG 7 System Settings 7.1 Configuring the Utility Grid The system settings of the Fuel Save Controller can only be adjusted when the Fuel Save Controller is in STANDBY or ERROR mode. The operating state STANDBY can be reached by stopping the SMA Fuel Save Controller. Requirement: You must be logged in as Installer. Procedure: 1. Choose the menu Configuration Wizard via the page and menu selection. 2. In the Grid bar, select the [Adjust] button. 3. To activate the utility grid connection, set the parameter Enable to Yes. 4. To deactivate the utility grid connection, set the parameter Enable to No. 5. Select the [Apply] button. This will adopt the setting. 6. Select the [Continue wizard] button. 7. End the system settings (see Section 7.8.1, page 71). 7.2 Settings for the gensets Parameters for Gensets with Genset Controller ComAp IG-/IS-NTC Genset general configuration Parameter Description Value Explanation Default value Remaining available devices Remaining number of configurable gensets Number of devices Number of installed gensets 0 to 8 0 Genset interface Type Type of genset interface* ComAp IG-/IS-NTC Genset controller "ComAp IG-NTC / ComAp IS-NTC" with Modbus/TCP communication None ComAp access code Password for access to the genset controller 0 to The maximum length of the password is 16 bits. 0 ComAp admin password Administrator password for write access to parameters of the genset controller 0 to The maximum length of the password is 16 bits FSC20-BA-en-21 User Manual

47 SMA Solar Technology AG 7 System Settings Parameter Description Value Explanation Default value Genset setpoint mechanism Activates the writing of reserve power setpoints to the genset controller system (see Section 8.1.1, page 74). Checkbox activated Checkbox deactivated The specification of setpoints for the reserve power is activated. The specification of setpoints for the reserve power is deactivated. * The display of the following parameters changes according to the setting of the parameter Genset interface Type. Deactivated Generator configuration wizard: detailed configuration Parameter Description Value Explanation Default value Alias Genset / genset controller ID Enable this generator Determines whether the Fuel Save Controller should take the genset into account for control of the PV diesel hybrid system Yes No The Fuel Save Controller takes the genset into account. The Fuel Save Controller does not take the genset into account. No IP address IP address of the genset controller (not applicable with a higher-level control system) to Address range defined by the Fuel Save Controller for gensets Unit-ID (Modbus/TCP) Genset controller ID for the Modbus/TCP protocol 1 to Nominal active power Nominal power of the genset 0 kw to kw 0 kw Enable setpoint mechanism Activates the dynamic specification of a setpoint for the reserve power Yes Dynamic specification of setpoints for the reserve power is activated. No No Dynamic specification of setpoints for the reserve power is deactivated. Apply changes to all devices Configures the gensets according to a uniform structure: the entered nominal power is adopted and the IP address is incremented by 1. User Manual FSC20-BA-en-21 47

48 7 System Settings SMA Solar Technology AG Parameters for Gensets with the Genset Controller DEIF AGC Genset general configuration Parameter Description Value Explanation Default value Remaining available devices Remaining number of configurable gensets Number of devices Number of installed gensets 0 to 8 0 Generator Interface Type Type of genset interface* DEIF AGC Genset Controllers of the DEIF AGC Series * The display of the following parameters changes according to the setting of the parameter Genset interface Type. None Generator configuration wizard: detailed configuration Parameter Description Value Explanation Default value Alias Genset / genset controller ID Enable this generator Determines whether the Fuel Save Controller should take the genset into account for control of the PV diesel hybrid system Yes No The Fuel Save Controller takes the genset into account. The Fuel Save Controller does not take the genset into account. No IP address IP address of the genset controller (not applicable with a higher-level control system) to Address range defined by the Fuel Save Controller for gensets Unit-ID (Modbus/TCP) Genset controller ID for the Modbus/TCP protocol 1 to Nominal active power Nominal power of the genset 0 kw to kw 0 kw Apply changes to all devices Activates transfer of the current settings for all gensets with Genset Controller DSE8610 Checkbox activated Checkbox deactivated Transfer of current settings for all gensets is activated. Transfer of current settings for all gensets is deactivated. Deactivated 48 FSC20-BA-en-21 User Manual

49 SMA Solar Technology AG 7 System Settings Parameters for Gensets with Genset Controller DSE8610 Genset general configuration Parameter Description Value Explanation Default value Remaining available devices Remaining number of configurable gensets Number of devices Number of installed gensets 0 to 8 0 Generator Interface Type Type of genset interface* Deep Sea 8610 Genset Controllers of the DSE8610 Series * The display of the following parameters changes according to the setting of the parameter Genset interface Type. None Generator configuration wizard: detailed configuration Parameter Description Value Explanation Default value Alias Genset / genset controller ID Enable this generator Determines whether the Fuel Save Controller should take the genset into account for control of the PV diesel hybrid system Yes No The Fuel Save Controller takes the genset into account. The Fuel Save Controller does not take the genset into account. No IP address IP address of the genset controller (not applicable with a higher-level control system) to Address range defined by the Fuel Save Controller for gensets Unit-ID (Modbus/TCP) Genset controller ID for the Modbus/TCP protocol 1 to Nominal active power Nominal power of the genset 0 kw to kw 0 kw Apply changes to all devices Activates transfer of the current settings for all gensets with Genset Controller DSE8610 Checkbox activated Checkbox deactivated Transfer of current settings for all gensets is activated. Transfer of current settings for all gensets is deactivated. Deactivated User Manual FSC20-BA-en-21 49

50 7 System Settings SMA Solar Technology AG Parameters for gensets with genset controller easygen-3000 via the CAN network Genset general configuration Parameter Description Value Explanation Default value Remaining available devices Remaining number of configurable gensets Number of devices Number of installed gensets 0 to 8 0 Genset interface Type Type of genset interface Easygen 3000 CAN Genset controller "Woodward Easygen 3000" with CAN communication * None CAN#1 password Password for write access to the genset controller 0 to 9999 For setting the password, refer to manufacturer documentation Genset setpoint mechanism Activates the writing of reserve power setpoints to the genset controller system (see Section 8.1.1, page 74). Checkbox activated Checkbox deactivated The specification of setpoints for the reserve power is activated The specification of setpoints for the reserve power is deactivated * For settings regarding the genset controller, see technical information "Gensets in PV Diesel Hybrid Systems with SMA Fuel Save Controller 2.0" Deactivated Generator configuration wizard: detailed configuration Parameter Description Value Explanation Default value Label Genset / genset controller ID Enable this generator Determines whether the Fuel Save Controller should take the genset into account for control of the PV diesel hybrid system Yes No The Fuel Save Controller takes the genset into account. The Fuel Save Controller does not take the genset into account. No Nominal active power Nominal power of the genset 0 kw to kw 0 kw 50 FSC20-BA-en-21 User Manual

51 SMA Solar Technology AG 7 System Settings Parameter Description Value Explanation Default value PDO-ID Protocol 6000 PDO-ID Protocol 5003 Service Data Object ID Timeout for PDO-ID Protocol 6000 Timeout for PDO-ID Protocol 5003 Timeout for Service Data Object ID Genset controller ID for the protocol 6000 (load distribution message) Genset controller ID for the data protocol 5003 (basic visualization) Genset controller ID for communicating via Service Data Objects (SDO) Timeout for transfer according to protocol 6000 Timeout for transfer according to data protocol 5003 Timeout for communication via Service Data Objects 0 to to 2047 For more information on the genset controller, see the manufacturer documentation to ms to ms 20 ms to ms 20 ms to ms The specification for the timeout must be higher than the cycle time configured in the genset controller (for more information on the genset controller, see the manufacturer documentation). 250 ms 250 ms 500 ms CAN message buffer load Display of the current capacity used in the CAN message store 0% to 100% The load in the CAN message store is only displayed after restarting the Fuel Save Controller (see Section 10.3, page 105). 0 % Parameters for Gensets with Genset Controller easygen-3000 via the ESENET Gateway Genset general configuration Parameter Description Value Explanation Default value Remaining available devices Number of devices Remaining number of configurable gensets Number of installed gensets 0 to 8 0 Genset interface Type Type of genset interface Easygen 3000 ES- ENET-Gateway Genset controller "Woodward Easygen 3000" with Modbus/ TCP communication via the ES- ENET gateway * None CAN#1 password Password for write access to the genset controller 0 to 9999 For setting the password, refer to manufacturer documentation 0 User Manual FSC20-BA-en-21 51

52 7 System Settings SMA Solar Technology AG Parameter Description Value Explanation Default value Genset setpoint mechanism Activates the writing of reserve power setpoints to the genset controller system (see Section 8.1.1, page 74). Checkbox activated Checkbox deactivated The specification of setpoints for the reserve power is activated. The specification of setpoints for the reserve power is deactivated. Deactivated Compares the nominal power values of the gensets set in the Fuel Save Controller with those of the genset controllers Checkbox activated Checkbox deactivated Comparison of genset nominal power is activated Comparison of genset nominal power is deactivated * For settings regarding the genset controller, see technical information "Gensets in PV Diesel Hybrid Systems with SMA Fuel Save Controller 2.0" Parameter compare mechanism Deactivated Generator configuration wizard: detailed configuration Parameter Description Value Explanation Default value Alias Genset / genset controller ID Enable this generator Determines whether the Fuel Save Controller should take the genset into account for control of the PV diesel hybrid system Yes No The Fuel Save Controller takes the genset into account. The Fuel Save Controller does not take the genset into account. No Nominal active power Nominal power of the genset 0 kw to kw 0 kw ESENET-Gateway IP Address IP address of the genset controller (not applicable with a higher-level control system) to Address range defined by the Fuel Save Controller for gensets Unit ID (Modbus/TCP) Genset controller ID for the Modbus/TCP protocol 1 to Parameters for Gensets without the Genset Controller Genset general configuration Parameter Description Value Explanation Default value Remaining available devices Remaining number of configurable gensets 52 FSC20-BA-en-21 User Manual

53 SMA Solar Technology AG 7 System Settings Parameter Description Value Explanation Default value Number of devices Number of installed gensets 0 to 8 0 Genset interface Type Type of genset interface None The genset is monitored via the current and voltage measurement of the Fuel Save Controller. A genset controller is not used. None Generator configuration wizard: detailed configuration Parameter Description Value Explanation Default value Alias Genset ID Enable this generator Determines whether the Fuel Save Controller should take the genset into account for control of the PV diesel hybrid system Yes No The Fuel Save Controller takes the genset into account. The Fuel Save Controller does not take the genset into account. No Nominal active power Nominal power of the genset 0 kw to kw 0 kw Configuring Gensets The system settings of the Fuel Save Controller can only be adjusted when the Fuel Save Controller is in STANDBY or ERROR mode. The operating state STANDBY can be reached by stopping the SMA Fuel Save Controller. The system settings for the gensets are located in the menus Genset general configuration and Generator configuration Wizard: detailed configuration. The displayed parameters depend on which gensets are used: Gensets without genset controllers (see Section 7.2.6, page 52) Parameters for gensets with genset controller easygen-3000, connected via the CAN network (see Section 7.2.4, page 50) Parameters for gensets with genset controller easygen-3000, connected via the ESENET gateway (see Section 7.2.5, page 51) Gensets with genset controller ComAp IG-/IS-NTC (see Section 7.2.1, page 46) Requirement: You must be logged in as Installer. User Manual FSC20-BA-en-21 53

54 7 System Settings SMA Solar Technology AG Destruction of gensets due to insufficient reserve power Once the SMA Fuel Save Controller and PV power plant have stopped, the PV power plant is no longer available as energy supplier. Now only the gensets supply the loads. If the current reserve power of the gensets is insufficient for supplying the power required by the loads, the gensets become overloaded Sustained overload of the gensets can result in failure of the power supply and destruction of the gensets. Prior to stopping the Fuel Save Controller, always check whether the current reserve power of the gensets is sufficient to cover the requirement of the loads. If the current reserve power of the gensets is insufficient, switch off the loads or connect additional gensets. This increases the reserve power of the gensets. If the power management and the communication interface of the genset is not compatible with the Fuel Save Controller, power management must be deactivated on the Fuel Save Controller. In this case, the gensets must be monitored to ensure that sufficient reserve power is retained. Make sure that the setpoints for power management on the Fuel Save Controller and the gensets are set to the same value. Procedure: 1. Choose the menu Configuration Wizard via the page and menu selection. 2. In the Genset System bar, select the [Adjust] button. 3. Set the parameters in the menu Genset general configuration (see Section 4.8.3, page 20). 4. Select the [Continue wizard] button. 5. Set the parameters in the menu Generator configuration Wizard: detailed configuration (see Section 4.8.3, page 20). 6. To change a particular parameter for all gensets, activate the Apply changes to all devices checkbox. 7. To change a particular parameter for individual gensets, deactivate the Apply changes to all devices checkbox. 8. To continue with system settings, select the [Continue wizard] button. 9. Select the [Done] button. 10. End the system settings (see Section 7.8.1, page 71). 7.3 Configuring the PV Power Plant The system settings of the Fuel Save Controller can only be adjusted when the Fuel Save Controller is in STANDBY or ERROR mode. The operating state STANDBY can be reached by stopping the SMA Fuel Save Controller. The system settings for the inverters are located in the menus PV general configuration and PV system configuration wizard. 54 FSC20-BA-en-21 User Manual

55 SMA Solar Technology AG 7 System Settings PV general configuration Figure 19: General system settings of the PV power plant (example) Buttons Button Add new item Remove item Parameter Add a device type for the PV inverter Remove a device type for the PV inverter Parameter Parameter Description Value Explanation Remaining available devices Remaining number of configurable inverters Type of inverter Inverter device type Sunny Tripower Type of an inverter of the Sunny Tripower series: STP 20000TL-30 / STP 25000TL-30 / STP 15000TLEE-10 / STP 20000TLEE-10 Sunny Tripower TL-60 Sunny Central CP Type of an inverter of the Sunny Tripower series: STP Type of an inverter of the Sunny Central CP XT series Number of inverters Number of installed inverters of the same device type 0 to 64 User Manual FSC20-BA-en-21 55

56 7 System Settings SMA Solar Technology AG PV detailed configuration Figure 20: Detailed system settings of the PV power plant (example) Parameter Description Value Explanation Default value Label Type label for identifying the inverter Enable this inverter Determines whether the Fuel Save Controller should take the inverter into account in the control of the PV diesel hybrid system. Yes No The Fuel Save Controller takes the inverter into account. The Fuel Save Controller does not take the inverter into account. No IP address IP address of the inverter to Address range defined by the Fuel Save Controller for inverters Protocol Communication protocol used by the inverter Defined by Type of inverter Different communication protocol See inverter documentation Defined by Type of inverter Modbus Unit ID Inverter ID for the Modbus/TCP protocol 126 to 167 See inverter documentation 56 FSC20-BA-en-21 User Manual

57 SMA Solar Technology AG 7 System Settings Parameter Description Value Explanation Default value Enable Q on demand The Fuel Save Controller uses the inverter's "Q on Demand" function. Yes No "Q on Demand" is being used. "Q on Demand" is not being used. No Requirement: You must be logged in as Installer. Procedure: 1. Choose the menu Configuration Wizard via the page and menu selection. 2. In the PV System bar, select the [Adjust] button. 3. Set the parameters in the menu PV general configuration (see Section 4.8.3, page 20). 4. Select the [Continue wizard] button. 5. Set the parameters in the menu PV general configuration (see Section 4.8.3, page 20). 6. To change a particular parameter for all inverters, activate the Apply changes to all devices checkbox. 7. To change a particular parameter for individual inverters, deactivate the Apply changes to all devices checkbox. 8. To continue with system settings, select the [Continue wizard] button. 9. Select the [Done] button. 10. End the system settings (see Section 7.8.1, page 71). 7.4 Setting the Storage System The parameters can only be set on this page if a battery inverter has been installed. The system settings of the Fuel Save Controller can only be adjusted when the Fuel Save Controller is in STANDBY or ERROR mode. The operating state STANDBY can be reached by stopping the SMA Fuel Save Controller. User Manual FSC20-BA-en-21 57

58 7 System Settings SMA Solar Technology AG Figure 21: Settings for the storage system in the Battery general configuration and Battery controller configuration sections. Battery general configuration: Storage system general settings Parameter Description Value Remaining available devices Remaining number of configurable battery inverters Type of battery controller Battery inverter device type* Quantity of battery controllers Number of installed battery inverters of the same device type 0 to 16 * The Battery System Controller is the communication interface of the battery inverter to the Battery Management System and the Fuel Save Controller. Battery controller configuration: Battery inverter settings Parameter Description Value Explanation Default value Enable frequency droops Activates the frequency-dependent active power control in the battery inverter (see battery inverter documentation). Yes The Fuel Save Controller activates the frequency-dependent active power limitation. No No The Fuel Save Controller deactivates the frequencydependent active power limitation. 58 FSC20-BA-en-21 User Manual

59 SMA Solar Technology AG 7 System Settings Parameter Description Value Explanation Default value Nominal droop frequency Upper SOC operating limit Lower SOC operating limit Power alteration proportionate to the nominal power of the battery inverter in the event of deviation from the mains nominal frequency Maximum battery state of charge If the maximum battery state of charge has been exceeded, the battery is no longer charged with electrical energy. Minimum battery state of charge If the battery state of charge falls below the minimum value, no more electrical energy is supplied from the battery. 0% to 200% 100 % 0% to 100% 100 % 0% to 100% 0 % Requirement: You must be logged in as Installer. Procedure: 1. Choose the menu Configuration Wizard via the page and menu selection. 2. In the Battery system bar, select the [Adjust] button. 3. Set the parameters in the Battery general configuration and Battery controller configuration sections (see Section 4.8.3, page 20). 4. To continue with system settings, select the [Continue wizard] button. 5. Select the [Done] button. 6. Activate monitoring for the state-of-charge limits Upper SOC operating limit and Lower SOC operating limit (see Section 8.3.1, page 90). 7. End the system settings (see Section 7.8.1, page 71). 7.5 Settings on the Measurement Devices Making General Settings on Measurement Devices The system settings of the Fuel Save Controller can only be adjusted when the Fuel Save Controller is in STANDBY or ERROR mode. The operating state STANDBY can be reached by stopping the SMA Fuel Save Controller. User Manual FSC20-BA-en-21 59

60 7 System Settings SMA Solar Technology AG Measurement devices general configuration Figure 22: General system settings on the measurement devices (example) Display group Parameter Description Value Explanation Default value Internal measurement devices Remaining available devices Remaining number of configurable measurement devices Number of devices Number of measurement devices installed 0 to 6 0 Frequency Nominal frequency 50 Hz 50 Hz 60 Hz Reset energy counters Reset the energy meters of all internal measurement modules. It is advisable to only use the Reset energy counters function during commissioning. External measurement devices Remaining available devices Remaining number of configurable measurement devices 0 to 32 Type of Measurement device Measurement device type DAQ-11 FSC-11-DAQ DAQ-11 Number of devices Number of measurement devices installed 0 to FSC20-BA-en-21 User Manual

61 SMA Solar Technology AG 7 System Settings Requirement: You must be logged in as Installer. Procedure: 1. Select the menu Configuration Wizard via the page and menu selection. 2. In the Measurement System bar, select the [Adjust] button. 3. To configure measurement devices that are connected via the internal measurement modules of the SMA Fuel Save Controller, perform the following steps: In the menu Measurement devices general configuration, set the parameters in the area Internal measurement devices (see SMA Fuel Save Controller user manual). Select the [Continue wizard] button. Doing so calls up the detailed system settings (see Section 7.5.2, page 61). 4. To configure measurement devices that are connected via a Data Acquisition Module, perform the following steps: In the menu Measurement devices general configuration, set the parameters in the area External measurement devices (see SMA Fuel Save Controller user manual). Select the [Continue wizard] button. Doing so calls up the detailed system settings (see Section 7.5.3, page 64) Making Detailed Settings on Measurement Devices for Internal Measurement Modules of the SMA Fuel Save Controller The system settings of the Fuel Save Controller can only be adjusted when the Fuel Save Controller is in STANDBY or ERROR mode. The operating state STANDBY can be reached by stopping the SMA Fuel Save Controller. User Manual FSC20-BA-en-21 61

62 7 System Settings SMA Solar Technology AG Measurement devices detailed configuration Figure 23: Detailed system settings for measurement devices that are connected via the internal measurement modules of the SMA Fuel Save Controller (example) Parameter Description Value Explanation Default value Alias Name for identification of measurement devices Enable this device Determines whether the Fuel Save Controller should take the measurement device into account in the control of the PV diesel hybrid system Yes No The Fuel Save Controller takes the measurement device into account. The Fuel Save Controller does not take the measurement device into account. No Feeder number Current measurement number (see SMA Fuel Save Controller installation manual) 1 to 6 62 FSC20-BA-en-21 User Manual

63 SMA Solar Technology AG 7 System Settings Parameter Description Value Explanation Default value Data source priority Use of the measured values from the Fuel Save Controller in the event of a communication connection failure Single source Connection to the device carrying out the measurements is disabled. Only the measured values from the Fuel Save Controller are used. Second source Connection to the device carrying out the measurements is enabled. The values communicated by the device have priority. If communication fails, the measured values from the Fuel Save Controller are used. Measurement priority Connection to the device carrying out the measurements is enabled. The values measured by the Fuel Save Controller have priority. In case of measurement failure, the values communicated by the device are used. Grid type Type of grid used for current and voltage measurement 3PH-3L 3PH-4L Three-conductor utility grid with three line conductors Four-conductor utility grid with three line conductors and one neutral conductor Ratio of potential transducer Ratio of current transducer Assign measurement points Transformation ratio for voltage measurement Transformation ratio for current measurement Overview of the activated devices, e.g. PV inverters The requirements of the measurement inputs must be complied with (see installation manual of the Fuel Save Controller). The requirements of the measurement inputs must be complied with (see installation manual of the Fuel Save Controller). Devices can be activated or deactivated for the selected measurement device via the button [Show devices]. Requirement: You must be logged in as Installer. You must have performed all necessary settings in the area Internal measurement devices in the menu Measurement devices general configurations (see Section 7.5.1, page 59). Procedure: 1. Set the desired parameters in the menu Measurement devices general configurations (see SMA Fuel Save Controller user manual). 2. To activate or deactivate devices for the selected measurement device, select the button [Show devices] in the Assign measurement points bar (see Section 7.5.4, page 66). User Manual FSC20-BA-en-21 63

64 7 System Settings SMA Solar Technology AG 3. To continue with system settings, select the [Continue wizard] button. 4. Select the [Done] button. 5. End the system settings (see Section 7.8.1, page 71) Making Detailed Settings on Measurement Devices for Data Acquisition Modules The parameters can only be set on this page if a Data Acquisition Module has been installed. The system settings of the Fuel Save Controller can only be adjusted when the Fuel Save Controller is in STANDBY or ERROR mode. The operating state STANDBY can be reached by stopping the SMA Fuel Save Controller. Measurement devices detailed configuration Figure 24: Detailed system settings for measurement devices that are connected via a Data Acquisition Module (example) Parameter Description Value Explanation Default value Alias Name for identification of measurement devices Enable this device Determines whether the Fuel Save Controller should take the measurement device into account in the control of the PV diesel hybrid system Yes No The Fuel Save Controller takes the measurement device into account. The Fuel Save Controller does not take the measurement device into account. No IP address IP address of the Data Acquisition Module to The IP address of the Data Acquisition Module is defined during commissioning. 64 FSC20-BA-en-21 User Manual

65 SMA Solar Technology AG 7 System Settings Parameter Description Value Explanation Default value Data source priority Use of the measured values from the Fuel Save Controller in the event of a communication connection failure Single source Connection to the device carrying out the measurements is disabled. Only the measured values from the Fuel Save Controller are used. Second source Connection to the device carrying out the measurements is enabled. The values communicated by the device have priority. If communication fails, the measured values from the Fuel Save Controller are used. Measurement priority Connection to the device carrying out the measurements is enabled. The values measured by the Fuel Save Controller have priority. In case of measurement failure, the values communicated by the device are used. Assign measurement points Overview of the activated devices, e.g. PV inverters Via the button [Show devices], a menu is called up in which devices can be activated or deactivated for the selected measurement device. Furthermore, the devices that are connected to the digital inputs of the Data Acquisition Module are configured via this menu. Requirement: You must be logged in as Installer. You must have performed all necessary settings in the area External measurement devices in the menu Measurement devices general configurations (see Section 7.5.1, page 59). Procedure: 1. Set the desired parameters in the menu Measurement devices general configurations (see SMA Fuel Save Controller user manual). 2. Ensure that the devices connected to the digital inputs of the Data Acquisition Module are correctly configured in the SMA Fuel Save Controller. To do so, select the button [Show devices] and compare the devices connected to the Data Acquisition Module with the devices configured on the Fuel Save Controller. User Manual FSC20-BA-en-21 65

66 7 System Settings SMA Solar Technology AG Example: Configuration of the Digital Inputs of the Data Acquisition Module on the Fuel Save Controller If the genset 1 is connected to digital input DI 1 on the Data Acquisition Module and the utility grid is connected to digital input DI 2, then the settings on the SMA Fuel Save Controller are correct in this example. If the utility grid is connected to digital input DI 1 on the Data Acquisition Module and the genset 1 is connected to digital input DI 2, then the settings on the SMA Fuel Save Controller are incorrect in this example. Incorrectly configured devices must be deactivated and reactivated with the correct settings. 3. To activate or deactivate devices for the selected measurement device, select the button [Show devices] in the Assign measurement points bar (see Section 7.5.4, page 66). 4. To continue with system settings, select the [Continue wizard] button. 5. Select the [Done] button. 6. End the system settings (see Section 7.8.1, page 71) Activating/Deactivating Devices The system settings of the Fuel Save Controller can only be adjusted when the Fuel Save Controller is in STANDBY or ERROR mode. The operating state STANDBY can be reached by stopping the SMA Fuel Save Controller. Requirement: You must be logged in as Installer. Procedure: 1. Select the menu Configuration Wizard via the page and menu selection. 2. In the Measurement System bar, click on the button [Adjust]. 3. In the menu Measurement devices general configuration, first click on the button [Apply] and then on the button [Continue wizard]. This opens the menu Measurement devices detailed configuration. 4. In the Assign measurement points bar, click on the button [Show devices]. 5. To add a device, perform the following steps: 66 FSC20-BA-en-21 User Manual

67 SMA Solar Technology AG 7 System Settings Select the appropriate subsystem via Select a subsystem. In the area Select a measurement point select either one available device or all available devices: To select one available device, activate the checkbox for this device. To select all available devices, activate the checkbox Select all. Click on the button [Add >>]. Click on the button [Apply and close]. 6. To remove a device, perform the following steps: In the area Select a measurement point select either one active device or all active devices: To select one active device, activate the checkbox for this device. To select all active devices, activate the checkbox Select all. Click on the button [<< Remove]. Click on the button [Apply and close]. 7.6 Setting the Temperature and Irradiation Sensors The system settings of the Fuel Save Controller can only be adjusted when the Fuel Save Controller is in STANDBY or ERROR mode. The operating state STANDBY can be reached by stopping the SMA Fuel Save Controller. Meteorologic general configuration Figure 25: System settings for the temperature and irradiation sensors Parameter Description Value Explanation Default value Remaining available devices Number of devices Remaining number of configurable temperature and irradiation sensors Number of temperature and irradiation sensors installed 0 to 6 0 User Manual FSC20-BA-en-21 67

68 7 System Settings SMA Solar Technology AG Parameter Description Value Explanation Default value Device type Type of temperature and irradiation sensors SMA Meteo Station Interface to the SMA Cluster Controller or SMA Inverter Manager SMA Meteo Station SMA Meteo Station Modbus TCP Only make adjustments after prior consultation with SMA Solar Technology AG Sunspec Mini Met Model Communication interface specified according to SunSpec Modbus Requirement: You must be logged in as Installer. Procedure: 1. Choose the menu Configuration Wizard via the page and menu selection. 2. In the Meteorological data bar, select the [Adjust] button. 3. Set the parameters in the menu Meteorologic general configuration (see Section 4.8.3, page 20). 4. To continue with system settings, select the [Continue wizard] button. 5. Select the [Done] button. 6. End the system settings (see Section 7.8.1, page 71). 7.7 Configuring Stop of the Fuel Save Controller via Switch Input DI 7 The system settings of the Fuel Save Controller can only be adjusted when the Fuel Save Controller is in STANDBY or ERROR mode. The operating state STANDBY can be reached by stopping the SMA Fuel Save Controller. 68 FSC20-BA-en-21 User Manual

69 SMA Solar Technology AG 7 System Settings Figure 26: System settings for digital input and outputs Digital Input/Output Configuration Parameter Description Value Explanation Default value Use digital input 7 to stop the FSC system Stop of Fuel Save Controller via switch input DI 7* Activated Switch input DI 7 is used to stop the Fuel Save Controller. When this function is activated, the parameters Signal mode and Stop mode appear. Activated Deactivated Switch input DI 7 is not used to stop the Fuel Save Controller. The parameters Signal mode and Stop mode disappear. Signal mode Tripping signal or switching procedure Normally open Tripping signal is activation of the connected signal generator. Normally closed Normally closed Tripping signal is deactivation of the connected signal generator. User Manual FSC20-BA-en-21 69

70 7 System Settings SMA Solar Technology AG Parameter Description Value Explanation Default value Stop mode Stop mode Fast stop Fast stop: PV power plant is disconnected from the utility grid immediately. Fast stop Slow Stop Slow stop: the output power of the PV power plant is reduced gradually and then the PV power plant is disconnected from the grid. * To enable use of this function, switch input DI 7 must be connected (see Fuel Save Controller installation manual). Custom Inputs Parameter Custom Input DI9 Custom Input DI10 Description Freely configurable digital input to which special functions can be assigned: No function Feedback from the generator switch of genset 7 Freely configurable digital input to which special functions can be assigned: No function Feedback from the generator switch of genset 8 Destruction of gensets due to insufficient reserve power Once the SMA Fuel Save Controller and PV power plant have stopped, the PV power plant is no longer available as energy supplier. Now only the gensets supply the loads. If the current reserve power of the gensets is insufficient for supplying the power required by the loads, the gensets become overloaded Sustained overload of the gensets can result in failure of the power supply and destruction of the gensets. Check whether the current reserve power of the gensets is sufficient for supplying the power required by the loads. If the current reserve power of the gensets is insufficient, switch off the loads or connect additional gensets. This increases the reserve power of the gensets. If sufficient reserve power of the gensets cannot be ensured in operation, do not use the switch input DI 7 of the Fuel Save Controller (Fast Stop contact of the PV power plant). Requirement: You must be logged in as Installer. Procedure: 1. Choose the menu Configuration Wizard via the page and menu selection. 2. In the Digital Input/Output bar, select the [Adjust] button. 3. To enable the stop of the Fuel Save Controller via switch input DI 7, activate checkbox Use digital input 7 to stop the FSC system. 4. To disable the stop of the Fuel Save Controller via switch input DI 7, deactivate checkbox Use digital input 7 to stop the FSC system. 5. If the checkbox Use digital input 7 to stop the FSC system is activated, configure the desired values for stopping the Fuel Save Controller via switch input DI 7 in the dropdown lists Signal mode and Stop mode. 70 FSC20-BA-en-21 User Manual

71 SMA Solar Technology AG 7 System Settings 6. Select the [Apply] button. 7. Select the [Done] button. 8. End the system settings (see Section 7.8.1, page 71). 7.8 Handling System Settings Ending System Settings The system settings of the Fuel Save Controller can only be adjusted when the Fuel Save Controller is in STANDBY or ERROR mode. The operating state STANDBY can be reached by stopping the SMA Fuel Save Controller. Requirements: You must be logged in as Installer. All the required settings regarding the parameters of the Fuel Save Controller must be finished and confirmed with the [Done] button. Procedure: 1. Save the current settings in a parameter file (see Section 7.8.2, page 71). 2. Restart the Fuel Save Controller with the saved parameter file (see Section 10.3, page 105). This accepts the current settings for ongoing operation. The restart process for the Fuel Save Controller takes approx. 1 minute Saving System Settings Figure 27: Saving system settings The system settings of the Fuel Save Controller are saved in parameter files. You can overwrite the current parameter file or create a new parameter file. The system settings of the Fuel Save Controller can only be saved, loaded or deleted when the Fuel Save Controller is in STANDBY or ERROR mode. Requirement: You must be logged in as Installer. Maximum number of parameter files It is possible to save up to ten different system settings in parameter files. Procedure: Once this number has been reached, delete parameter files you no longer need (see Section 7.8.4, page 73). 1. Choose the menu Parameter Files via the page and menu selection. 2. To overwrite the current parameter file, select the [Overwrite] button in the Current file bar. 3. To create a new parameter file, perform the following steps: Enter the desired file name in the New file bar and press Enter. By pressing Enter, the entered value is adopted in the user interface of the Fuel Save Controller. Select the [Save] button. User Manual FSC20-BA-en-21 71

72 7 System Settings SMA Solar Technology AG Loading System Settings Figure 28: Loading or deleting system settings The system settings of the Fuel Save Controller can only be saved, loaded or deleted when the Fuel Save Controller is in STANDBY or ERROR mode. After a software update, the Fuel Save Controller restores automatically the system settings from the file that has been saved last. Due to the newly added parameters in the new software version, the Fuel Save Controller remains in the operating state ERROR and signals the error 2069 until the system settings are saved again and the system has been restarted. The new parameters, which have been added through an update, can be found in the respective release notes that are included in the software update package. Requirements: You must be logged into the user interface as Installer. The Fuel Save Controller and PV power plant must have been stopped (see Section 10.1, page 104). Power supply failure when the SMA Fuel Save Controller is restarted Before restarting the SMA Fuel Save Controller, the SMA Fuel Save Controller and PV power plant must be stopped. It can take a few minutes for the SMA Fuel Save Controller and PV power plant to stop because the PV inverters have to reduce their output power slowly. If the PV inverters are still feeding energy to the grid when the SMA Fuel Save Controller is restarted, this may cause failure of the power supply. Once the SMA Fuel Save Controller has stopped, wait until the PV inverters have reduced their output power to zero. This can take several minutes. Procedure: 1. Choose the menu Parameter Files via the page and menu selection. 2. Only if no parameter file is selected, the Fuel Save Controller can be restarted with a parameter file: Select a parameter file in the drop-down list File database. In the Reboot with a selected file bar, select the [Reboot] button. 3. To overwrite the current parameter file, select the [Overwrite] button in the Current file bar. 4. Choose the parameter file with the required system settings via the dropdown list File database. 5. In the Reboot with a selected file bar, select the [Reboot] button. 72 FSC20-BA-en-21 User Manual

73 SMA Solar Technology AG 7 System Settings Deleting System Settings Figure 29: Loading or deleting system settings The system settings of the Fuel Save Controller can only be saved, loaded or deleted when the Fuel Save Controller is in STANDBY or ERROR mode. Requirement: You must be logged into the user interface as Installer. Procedure: 1. Choose the menu Parameter Files via the page and menu selection. 2. Choose the parameter file with the required system settings via the dropdown list File database. 3. In the bar Delete selected file, press [Delete]. User Manual FSC20-BA-en-21 73

74 8 System Control SMA Solar Technology AG 8 System Control 8.1 Genset control Configuring the Minimum Genset Load Threshold Parameter overview Figure 30: Minimum Genset Load: Settings regarding the minimum load of the genset Parameter Description Value Explanation Default value DbTolPc DbTolTm GenPwrAtMinPc Deadband for error output related to the minimum genset loading threshold in %. Deadband timer for error output in seconds Minimum genset loading of the genset system in % of the nominal genset active power -100% to 100% 10 % 0.1 s to 3600 s 60 s 0% to 100% 30 % 74 FSC20-BA-en-21 User Manual

75 SMA Solar Technology AG 8 System Control Parameter Description Value Explanation Default value RampTmGenPwrAt- Nom SpntOfsPc Ramp time of the change in the nominal genset active power in seconds Setpoint offset related to the minimum genset loading threshold in % 1 s to 60 s 10 s -100% to 100% 0 % Requirement: You must be logged in as Installer. Procedure: 1. Go to Control Functions > Genset control functions > Minimum genset load via the page and menu selection. 2. Set the desired parameters (see Section 4.8.3, page 20). User Manual FSC20-BA-en-21 75

76 8 System Control SMA Solar Technology AG Configuring Reverse Power Protection of the Gensets Parameter overview Figure 31: Reverse Power Protection: Settings for reverse power protection of the gensets Parameter Description Value Explanation Default value Enable ErrTolDevMinPc ErrTolDevMinTm WarTolDevMinPc WarTolDevMinTm Activate the Reverse Power Protection function. Tolerance for error detection upon device reverse power in % of the nominal active genset power in kw Timer for error output upon device reverse power in seconds. Tolerance for warning detection upon device reverse power in % of the nominal active genset power in kw Timer for warning output upon device reverse power in seconds Yes Activates the function Yes No Deactivates the function -100% to % 0.1 s to 60 s 0.1 s -100% to % 0.1 s to 60 s 2 s 76 FSC20-BA-en-21 User Manual

77 SMA Solar Technology AG 8 System Control Parameter Description Value Explanation Default value ErrTolTotPc ErrTolTotTm WarTolTotPc WarTolTotTm Tolerance for error detection upon total reverse power in % of the nominal active genset power in kw Timer for error output upon total reverse power in seconds Tolerance for warning detection upon total reverse power in % of the nominal active genset power in kw Timer for warning output upon total reverse power in seconds -100% to % 0.1 s to 60 s 0.1 s -100% to % 0.1 s to 60 s 2 s Requirement: You must be logged in as Installer. Power supply failure caused by unexpected stop of a genset due to reverse power protection To ensure that a genset is protected from backfeed damage, reverse power protection must be enabled and configured in the Fuel Save Controller and the genset. The parameters on the Fuel Save Controller and the genset must be configured so that the reverse power protection is always triggered at the Fuel Save Controller first. If the reverse power protection first triggers in the genset, this results in an unexpected stop of the genset which cannot be foreseen by the Fuel Save Controller. The unexpected stop of a genset may result in a power failure in the entire PV diesel hybrid system. Only use gensets with reverse power protection which fulfill the reverse power limits of the Fuel Save Controller (see installation manual of the SMA Fuel Save Controller). Ensure that the reverse power protection of the gensets is always active when operating the Fuel Save Controller. Adjust the reverse power protection parameters to ensure that reverse power protection always triggers first at the Fuel Save Controller and only then at the genset. Procedure: 1. Go to Control Functions > Genset control functions > Reverse power management via the page and menu selection. 2. Set the desired parameters (see Section 4.8.3, page 20). User Manual FSC20-BA-en-21 77

78 8 System Control SMA Solar Technology AG Setting the Supply of Sufficient Reserve Power via Gensets Parameter overview Figure 32: Genset Power Management: Power management of gensets: settings for reserve power Parameter Description Value Explanation Default value Enable Activates the Genset Power Management function. Yes Activates the function Yes No Deactivates the function 78 FSC20-BA-en-21 User Manual

79 SMA Solar Technology AG 8 System Control Parameter Description Value Explanation Default value PwrMngmtMode Select the mode for power management (for information on power management, see technical information "Gensets in PV Diesel Hybrid Systems with SMA Fuel Save Controller 2.0") Off Relative to the remaining gensets Off If the function Genset setpoint mechanism is activated, this value is recommended (see Section 7.2.7, page 53) Relative power management of gensets as a percentage of the active genset load: In the case of switch-off, the remaining nominal power of the gensets remaining after switch-off is taken into account. Off Relative to the available gensets Relative power management of gensets as a percentage of the active genset load: In the case of switch-off, the nominal power of the currently active gensets is taken into account. Absolute Power Management Absolute power management of gensets to comply with a specified absolute reserve power of the total system in kw. GenTrshldTopPc Switch-on threshold for relative genset power management in % of the /n active genset nominal power. 10% to 110% 90 % GenTrshldTopAbs Switch-on threshold for absolute genset power management in kw 0 kw to kw 10 kw GenTrshldBotPc Switch-off threshold for relative genset power management in relation to the active genset nominal power in % 0% to 90% 35 % GenTrshldBotAbs Switch-off threshold for absolute genset power management in kw 0 kw to kw 20 kw SysTmResHigh System timer for detection of excessive reserve power provided by the gensets 0 s to 900 s 300 s SysDbResHigh System deadband for excessive reserve power detection in % of genset active nominal power (positive values alleviate detection) -100% to +100% 10 % User Manual FSC20-BA-en-21 79

80 8 System Control SMA Solar Technology AG Parameter Description Value Explanation Default value SysTmResLow System timer for detection of insufficient reserve power provided by the gensets 0 s to 900 s 90 s SysDbResLow System deadband for insufficient reserve power detection in % of genset active nominal power (positive values alleviate detection) -100% to +100% 10 % Figure 33: Genset Power Management: Power management of gensets: settings for reserve power (continued) Parameter Description Value Explanation Default value LoadPwrAtResReq Load required spinning reserve request 0 kw to kw 10 kw 80 FSC20-BA-en-21 User Manual

81 SMA Solar Technology AG 8 System Control Parameter Description Value Explanation Default value SimultaneousPc BatPwrAtResMaxPc GenResPwrThrsld Simultaneous factor for Gen- PwrAtResSpnt while PV is requesting more ResPwr in % of LoadPwrAtRes The value 0% means that the events do not occur at the same time. If the events do not occur at the same time, the Fuel Save Controller does not have to provide as much reserve power. Percentage of the available reserve power from battery system which shall be considered for reserve power management Threshold for preventing overloading of gensets by feeding in battery reserve power. In relation to the genset's nominal power 0% to 100% 50 % 0% to 120% 70 % 50% to 120% 90 % PvPwrAt- SafeModeMin Minimum injected active PV power, if system is in safe mode. 0 kw to kw 0 kw Requirement: You must be logged in as Installer. Destruction of gensets due to insufficient reserve power Once the SMA Fuel Save Controller and PV power plant have stopped, the PV power plant is no longer available as energy supplier. Now only the gensets supply the loads. If the current reserve power of the gensets is insufficient for supplying the power required by the loads, the gensets become overloaded Sustained overload of the gensets can result in failure of the power supply and destruction of the gensets. Prior to stopping the Fuel Save Controller, always check whether the current reserve power of the gensets is sufficient to cover the requirement of the loads. If the current reserve power of the gensets is insufficient, switch off the loads or connect additional gensets. This increases the reserve power of the gensets. If the power management and the communication interface of the genset is not compatible with the Fuel Save Controller, power management must be deactivated on the Fuel Save Controller. In this case, the gensets must be monitored to ensure that sufficient reserve power is retained. Make sure that the setpoints for power management on the Fuel Save Controller and the gensets are set to the same value. Procedure: 1. Go to Control Functions > Genset control functions > Genset power management via the page and menu selection. 2. Set the desired parameters (see Section 4.8.3, page 20). User Manual FSC20-BA-en-21 81

82 8 System Control SMA Solar Technology AG 8.2 Controlling the PV power plant Setting the Power Factor Control for the Gensets Using the Reactive Power Release of the PV Inverters Parameter overview Figure 34: Reactive Power Control: Settings for power factor control of the gensets using the reactive power release of the PV inverters Parameter Description Value Explanation Default value Enable Enables this function. Yes Activates the function* Yes No Deactivates the function Point of interest Power factor setpoint for either the genset system or the grid Genset Control at connection point of the genset system Genset Grid Control at the grid-connection point CosPhiSpnt PropGain Power factor setpoint for either the genset system or the grid Proportional gain for the PI controller, a tuning parameter 0.1 to to FSC20-BA-en-21 User Manual

83 SMA Solar Technology AG 8 System Control Parameter Description Value Explanation Default value IntGain TrackGain BackcalcGain Integral gain for the PI controller, a tuning parameter An anti windup parameter. Keep it around 50% of integral gain An anti windup parameter. Keep it around 50% of integral gain 0 to to to EnableFeedForward Enables the feed forward algorithm Yes Activates the feed forward Yes No Deactivates the feed forward FeedForwardOffset A tuning parameter for the feed forward algorithm kvar to kvar 0 kvar FeedForwardGain A tuning parameter for the feed forward algorithm 0 to 10 1 * When the function Reactive Power Control is activated, the function Reactive Power Management must be deactivated (see Section 8.2.2, page 85). User Manual FSC20-BA-en-21 83

84 8 System Control SMA Solar Technology AG Figure 35: Reactive Power Control: Settings for power factor control of the gensets using the reactive power release of the PV inverters (continued) Parameter Description Value Explanation Default value SpntSplitPc PvPwrRtFilterTime BatPwrAtFilterTime BatPwrRtFilterTime To split the reactive power setpoint between the PV and battery system. (90% => PV = 90%, Battery = 10%) Example: SpntSplitPc = 100%: 100% allotted to the PV power plant and 0% to the storage system. SpntSplitPc = 0%: 0% allotted to the PV power plant and 100% to the storage system. First order filter time constant for the reactive power of the PV system Time constant for the active power of the storage system First order filter time constant for the reactive power of the battery system 0% to 100% 80 % 0 s to 3600 s 1 s 0 s to 3600 s 1 s 0 s to 3600 s 1 s 84 FSC20-BA-en-21 User Manual

85 SMA Solar Technology AG 8 System Control Parameter Description Value Explanation Default value GenPwrAtRtFilterTime LoadPwrAtRtFilterTm Time constant for the active power of the genset system Time constant for the active power of the loads 0 s to 3600 s 1 s 0 s to 3600 s 1 s Requirement: You must be logged in as Installer. Procedure: 1. Go to Control Functions > PV control functions > Reactive power control via the page and menu selection. 2. Set the desired parameters (see Section 4.8.3, page 20) Setting the Control of the PV Power Plant Reactive Power According to Electrical Load Parameter overview Figure 36: Reactive Power Management: Settings regarding the reactive power of the PV power plant Parameter Description Value Explanation Default value Enable Enables this function Yes Activates the function* Yes No Deactivates the function User Manual FSC20-BA-en-21 85

86 8 System Control SMA Solar Technology AG Parameter Description Value Explanation Default value RpmIslandMode Selects the mode of this function in case of island operation Off Reactive power management for island operation is deactivated. Off Fixed CosPhi Reactive power management for island operation with set power factor Load CosPhi Reactive power management for island operation with load-dependent power factor FixedCosPhiIsland Fixed cosphi in island operation (only active if selected in RpmIslandMode) This parameter is only valid if the parameter RpmIslandMode is set to Fixed CosPhi. -1 to RpmGridMode Selects the mode of this function in case of grid operation Off Reactive power management for operation in the utility grid is deactivated. Fixed CosPhi Fixed CosPhi Reactive power management for operation in the utility grid with set power factor Load CosPhi Reactive power management for operation in the utility grid with load-dependent power factor FixedCosPhiGrid PvCosPhiMinOx PvCosPhiMinUx GenCosPhiWarnOx Fixed cosphi in grid operation (only active if selected in Rpm- GridMode) This parameter is only valid if the parameter RpmGridMode is set to Fixed CosPhi. Minimum overexcited power factor which the PV inverters can provide Minimum underexcited power factor which the PV inverters can provide. Warning threshold of cosphi for overexcited operation of gensets -1 to to to to FSC20-BA-en-21 User Manual

87 SMA Solar Technology AG 8 System Control Parameter Description Value Explanation Default value GenCosPhiWarnTm Warning timer for cosphi operation of Gensets 0 s to s 10.0 s GenCosPhiWarnUx Warning threshold of cosphi for underexcited operation of gensets -1 to * When the function Reactive Power Management is activated, the function Reactive Power Control must be deactivated (see Section 8.2.1, page 82). Figure 37: Reactive Power Management: Settings regarding the reactive power of the PV power plant (continued) Parameter Description Value Explanation Default value GridCosPhiWarnOx GridCosPhiWarnUx GridCosPhiWarnTm FixedCosPhiBat Warning threshold of cosphi for overexcited operation of grid Warning threshold of cosphi for underexcited operation of grid Warning timer for cosphi operation of grid Fixed cosphi in grid operation (only active if selected in Rpm- GridMode) 0 to to s to s 10.0 s 0 to User Manual FSC20-BA-en-21 87

88 8 System Control SMA Solar Technology AG Requirement: You must be logged in as Installer. Procedure: 1. Go to Control Functions > PV control functions > Reactive power management via the page and menu selection. 2. Set the desired parameters (see Section 4.8.3, page 20) Configuring MPP Calculation for PV Power Plant The accuracy of the determined MPP power is evaluated by the Fuel Save Controller during the run time. The evaluation results are written to the error and event file and shown on the user interface in the error dialog at the end of the day. One of the three messages are generated once a day: # MPP accuracy: no evaluation due to small PV operation time Today's operating time of the PV system was too short to carry out a proper evaluation. # MPP accuracy: negative/positive mismatch by xy/xy kwh A negative or positive deviation has occurred during the calculation of the MPP power. The deviation is shown in kwh by xy/xy. A negative deviation means that the MPP calculation is too low. A positive deviation means that the MPP calculation is too high. # MPP accuracy: achieved the expected accuracy of 10% The accuracy of the determined MPP lies within the required scope of 10%. With this information, an adjustment of the parameters of the calculation is possible to increase accuracy. 88 FSC20-BA-en-21 User Manual

89 SMA Solar Technology AG 8 System Control Parameter overview Figure 38: MPP Calculation: Specifications on the MPP calculation for the PV inverters Parameter Description Value Default value MppCalcGain In case of an inaccurate calculation of the maximum power point, it can be improved by adjusting this factor to MppCalcOffset In case of an inaccurate calculation of the maximum power point, it can be improved by adjusting this offset to MppNormOpCell- Temp Normal operating cell temperature of the PV modules. Use the PV module datasheet as a reference C to +100 C 25 C MppPwrTempCoeff Power temperature coefficient of the PV modules. Use the PV module datasheet as a reference. -10%/ C to +10%/ C 0.1% / C SafePctPv Base of MPP power which will always be available in case of PV drops in percentage of current MPP power 0% to 100% 20 % CalcPvPwrAtMpp Estimated MPP power 0 kw to kw User Manual FSC20-BA-en-21 89

90 8 System Control SMA Solar Technology AG Requirement: You must be logged in as Installer. Procedure: 1. Go to Control Functions > PV control functions > MPP calculation via the page and menu selection. 2. Set the desired parameters (see Section 4.8.3, page 20). 3. Make sure that the parameters MppNormOpCellTemp and MppPwrTempCoeff are set in accordance with the technical data of the PV module (see manufacturer documentation). Setting the parameters MppNormOpCellTemp and MppPwrTempCoeff in accordance with the technical data of the PV modules enables a reliable estimation of the PV power from the Fuel Save Controller. 8.3 Controlling the Battery Inverter Setting the State-Of-Charge Control of the Battery The parameters of the function State of charge can only be set if a battery inverter has been installed. Parameter overview Figure 39: State of charge: Settings regarding the thresholds for the state of charge of the battery Parameter Description Value Explanation Default value Enable Enables this function Yes Activates the function Yes No Deactivates the function 90 FSC20-BA-en-21 User Manual

91 SMA Solar Technology AG 8 System Control Parameter Description Value Explanation Default value UsePvPwr Enables function BatChrCtrl. Default ON It is advisable to always charge the battery with excess PV energy. Yes No The battery is ideally charged with PV energy. The battery is ideally charged from gensets or the utility grid Yes CtrlGain Control function gain 0.1 to HysPc Hysteresis of SOC range: If the battery state of charge falls below the value of the parameter SocLimLoPc, the Fuel Save Controller begins to charge the battery. If the battery state of charge exceeds the sum of the parameters SocLimLoPc and HysPc, the Fuel Save Controller stops charging the battery. 0% to 100% 5 % SocLimHiPc Upper limit of SOC range 0% to 100% 80 % SocLimLoPc Lower limit of SOC range 0% to 100% 60 % ToRdyTm PwrAtLimPc Time until module starts working after battery power is not used: If the battery state of charge upper limit is exceeded and the delay time has elapsed, the Fuel Save Controller requests that the battery be discharged. If the battery state of charge falls below the lower limit and the delay time has elapsed, the Fuel Save Controller requests that the battery be charged. Percentage of maximum available charge/discharge power to limit the calculated setpoint 0 s to s 180 s 0% to 100% 10 % Requirement: You must be logged in as Installer. User Manual FSC20-BA-en-21 91

92 8 System Control SMA Solar Technology AG Procedure: 1. Go to Control Functions > Battery control functions > SOC control via the page and menu selection. 2. Set the desired parameters (see Section 4.8.3, page 20) Setting the Setpoints for the Storage System According to the Rise and Drop of PV Power The parameters of the function Ramp rate control can only be set if a battery inverter has been installed. When using a storage system in PV diesel hybrid systems: Measurement of PV power via the measurement inputs of the Fuel Save Controller If a storage system is implemented in the PV diesel hybrid system, the Fuel Save Controller has to calculate the setpoints of the storage system for the charging and discharging of the battery depending on the PV power. To correctly calculate the setpoints, the Fuel Save Controller requires the data of the PV power in a very high temporal resolution. For this, a current measurement input and a voltage measurement input of the Fuel Save Controller or of the optional Data Acquisition Module must be used for capturing the PV power. The data transmitted via the internal communication network of the PV diesel hybrid system do not have the required resolution. 92 FSC20-BA-en-21 User Manual

93 SMA Solar Technology AG 8 System Control Parameter overview Figure 40: Ramp rate control: Settings regarding the calculation of setpoints for the battery according to the active power supplied by the PV power plant Parameter Description Value Explanation Default value Enable Enable this function Yes Activates the function Yes No Deactivates the function FallRateMax Maximum permitted rate for PV drop. If there is a greater drop in PV power, electrical power must be supplied by the battery. 0 kw/s to kw/s 100 kw/ s RiseRateMax Maximum permitted rate for PV rise. If there is a greater rise in PV power, electrical power must be stored in the battery. 0 kw/s to kw/s 100 kw/ s StrThrsld Function output offset in case of mismatch. 0 kw to kw 1 kw User Manual FSC20-BA-en-21 93

94 8 System Control SMA Solar Technology AG Requirements: You must be logged in as Installer. Procedure: 1. Go to Control Functions > Battery control functions > Ramp rate control via the page and menu selection. 2. Set the desired parameters (see Section 4.8.3, page 20) Setting the Charge/Discharge of the Battery According to the Rise/Drop in PV Power The parameters of the function Energy Shifting can only be set if a battery inverter has been installed. Parameter overview Figure 41: Energy Shifting: Settings for charging the battery using PV energy Parameter Description Value Explanation Default value Enable Enables this function Yes Activates the function Yes No Deactivates the function 94 FSC20-BA-en-21 User Manual

95 SMA Solar Technology AG 8 System Control Parameter Description Value Explanation Default value ChrFromPvSpntLimPc DisBatSpntLimPc MinDisTm Charging the battery from PV is limited by this value based on the maximum charge power of the battery system The battery is charged when there is surplus PV energy. The charging setpoint of the storage system is limited to this value. Amount of power provided by the battery based on the maximum discharge power of the battery system The buffered energy is released by the storage system if too little PV power is available. The setpoint for discharging the battery is limited to this value. Minimum time for the battery to provide power The energy required must be stored in the battery. 0% to 100% 10 % 0% to 100% 10 % 60 s to s 1800 s Requirement: You must be logged in as Installer. Procedure: 1. Go to Control Functions > Battery control functions > Energy Shifting via the page and menu selection. 2. Set the desired parameters (see Section 4.8.3, page 20). User Manual FSC20-BA-en-21 95

96 8 System Control SMA Solar Technology AG 8.4 Controlling the Fuel Save Controller Configuring Setpoint Change Rate for PV inverters and Gensets Parameter overview Figure 42: Ramps: Settings for the setpoint change rate for inverters and gensets Parameter Description Value Default value GenPwrMngmtTransRamp Maximum rate of active power setpoint for PV system in case of too low reserve power. 0%/s to 100%/s 5%/s PvPwrAtFallRateMax Maximum negative rate of the active power setpoint for PV inverters in percent per second (%/s) of related nominal inverter power 0%/s to 1000%/s 20%/s PvPwrAtRiseRateMax Maximum positive rate of the active power setpoint for PV inverters in percent per second (%/s) of related nominal inverter power 0%/s to 1000%/s 5%/s PvPwrRtFallRateMax Maximum negative rate of the active power setpoint for PV inverters in percent per second (%/s) of related nominal inverter power 0%/s to 1000%/s 20%/s PvPwrRtRiseRateMax Maximum positive rate of the reactive power setpoint for PV inverters in percent per second (%/s) of related nominal inverter power. 0%/s to 1000%/s 20%/s 96 FSC20-BA-en-21 User Manual

97 SMA Solar Technology AG 8 System Control Parameter Description Value Default value BatPwrAtFall- RateMax Maximum negative rate of active power setpoint for battery system related to the actual power. 0%/s to 1000%/s 20%/s BatPwrAtRiseRateMax Maximum positive rate of active power setpoint for battery system related to the actual power 0%/s to 1000%/s 20%/s BatPwrRtFallRateMax Maximum negative rate of reactive power setpoint for battery system related to the actual power 0%/s to 1000%/s 20%/s BatPwrRtRiseRateMax Maximum positive rate of reactive power setpoint for battery system related to the actual power 0%/s to 1000%/s 20%/s SlowStopRamp Rate with which the complete system setpoints will be ramped down in case of a stop. 0 s to 3600 s 20 s Requirement: You must be logged in as Installer. Procedure: 1. Go to Control Functions > FSC control functions > Ramps via the page and menu selection. 2. Set the desired parameters (see Section 4.8.3, page 20). User Manual FSC20-BA-en-21 97

98 8 System Control SMA Solar Technology AG Options for Specifying the Reserve Power Setpoint of the Gensets Parameter overview Figure 43: Genset Setpoints: Specification of setpoints for gensets Parameter Description Value Default value GenSpntTrigPctNeg GenSpntTrigPctPos GenSpntTrigTm The reserve power setpoint will be transmitted immediately to the genset system if a negative change of the setpoint is greater than this percentage of the connected nominal Genset power. The reserve power setpoint will be transmitted immediately to the genset system if a positive change of the setpoint is greater than this percentage of the connected nominal Genset power. The reserve power setpoint for the Genset system will be transmitted /n cyclical after this time in seconds. 0% to 10000% 20 % 0% to 10000% 20 % 0.1 s to 3600 s 120 s Requirement: You must be logged in as Installer. 98 FSC20-BA-en-21 User Manual

99 SMA Solar Technology AG 8 System Control Procedure: 1. Go to Control Functions > FSC control functions > Genset setpoints via the page and menu selection. 2. Set the desired parameters (see Section 4.8.3, page 20) Configuring PV Power Plant Management Parameter overview Figure 44: Inverter management: Management of the PV power plant: Switching inverters on and off Parameter Description Value Explanation Default value Enable Enable this function Yes Activates the function Yes No Deactivates the function GenPwrAtNomInvProp GridPwrAtNomInvProp Proportion of allowed nominal inverter power in relation to the total nominal power of all connected Gensets Proportion of allowed nominal power of the inverter in relation to the nominal connection power of the connected utility grid 0% to 500% 200 % 0% to 1000% 200 % User Manual FSC20-BA-en-21 99

100 8 System Control SMA Solar Technology AG Parameter Description Value Explanation Default value PvConTmOutTm PvIdleTm PvOpTmSortTm PvRampTm PvSpntTrigTm PvTransTm FallbackPc The FSC waits for this time in seconds for the PV inverters to connect. Otherwise it will throw a timeout. After the FSC has started up or shut down inverters, further switching actions are not performed for this time in seconds. The FSC will sort the PV inverters based on their operating hours after the given number of seconds. Setpoints for the PV inverters will be ramped for this time in case of switching action. The active and reactive power setpoints for the PV inverters will be transmitted cyclical after this time in seconds. Setpoints for the PV inverters will be ramped for this time in case of switching action. In case of communication issues to the inverters, they will feed in this percentage of nominal power. 10 s to s 600 s 0 s to s 60 s at least 3600 s s 1 s to 300 s 60 s 0.1 s to 3600 s 0.2 s 1 s to s 600 s 1% to 100% 10 % Requirement: You must be logged in as Installer. Power outage due to sudden power fluctuations in the PV power plant If the communication between the Fuel Save Controller and the inverters is interrupted, the inverters will operate according to their fallback settings. When communication is restored, power fluctuations may occur if the fallback settings of the inverters deviate from the fallback settings of the Fuel Save Controller. These power fluctuations can result in failure of the power supply in the PV diesel hybrid system. Ensure that the fallback settings of the inverters match the fallback settings of the Fuel Save Controller. Procedure: 1. Go to Control Functions > FSC control functions > Inverter management via the page and menu selection. 2. Set the desired parameters (see Section 4.8.3, page 20). 100 FSC20-BA-en-21 User Manual

101 SMA Solar Technology AG 8 System Control 8.5 Setting the Control of the Grid Feed-In Parameter overview Figure 45: Feed in protection: Settings regarding grid feed-in Parameter Description Value Explanation Default value Enable Enable this function Yes Activates the function Yes No Deactivates the function GridReleaseAllPv Inject all PV in case of connected grid Off Deactivates the function Off On Activates the function FipMode Ensure a minimum active power to be obtained from the grid Feed in The Fuel Save Controller feeds into the utility grid up to the value of PwrAtFeed- InMax. GridMin- Load GridMinLoad The Fuel Save Controller obtains power from the utility grid up the value of PwrAt- GridMinLoad. User Manual FSC20-BA-en