Renewable Solar Inverter, RSI - PDF Free Download

GRUNDFOS DATA BOOKLET Renewable Solar Inverter for large solar powered systems 1.5-9.2 kw

Table of contents 1. Product introduction 3 General description 3 Tested for Grundfos pumps 3 Features and benefits 3 2. Performance range 4 Performance range 4 3. Applications 6 4. System components 8 Pumps 8 Renewable Solar Inverter 8 Circuit breaker, AC 9 Solar panel 9 Dry-running switch 9 Junction box components kit, DC 9 Level switch (optional) 9 5. Technical data 10 Technical data for circuit breaker, DC 11 Technical data for surge protection, DC 11 6. Product numbers 12 Renewable Solar Inverter 12 Junction box components kit 12 Dry-running switch 12 Level switch (optional) 12 Sine-wave filter 12 7. Appendix 13 8. Further product information 14 WebCAPS 14 WinCAPS 15 GO CAPS 16 2

1 1. Product introduction General description RSI is an off-grid solar inverter converting the DC power output from the solar panel to AC power supply for pump operation. Tested for Grundfos pumps The RSI can be used in both new and existing installations, but the pump and motor should be suitable for use with frequency converters. The list below shows the Grundfos pump types for which the RSI is designed. CR SP. Features and benefits Maximum power point tracking (MPPT) The inverter has built-in electronics with MPPT function. The inverter will continuously optimise according to the DC input power available. Overvoltage and undervoltage protection Overvoltage and undervoltage may occur in case of faulty installation. The inverter will cut out power connection to the motor if the voltage falls outside the allowed voltage limits. The inverter will stay in the same fault mode with the error code displayed on the inverter until the inverter is being reset. Overtemperature protection Overtemperature of the inverter may occur if appropriate ventilation is not available or the ambient temperature is too high. The inverter will cut out power connection to the motor if overtemperature occurs in the inverter. The inverter will stay in the same fault mode with the error code displayed on the inverter until the inverter is being reset. Note: The inverter does not detect motor temperature or protect the motor against overtemperature. No-load protection No-load situation of the inverter may occur if, for example, the cable to the motor is broken. The inverter will cut out power connection to the motor if no-load occurs. The inverter will stay in the same fault mode with the error code displayed on the inverter until the inverter is being reset. Note: For the protection to function properly, please check the RSI installation and operating instructions carefully during the operation. Operation history memory The inverter will store historical operating data. The data can be retrieved through the menu on the inverter. Data can be retrieved for every minute of operation up to two years back. Product introduction Overload protection Overload may occur if the maximum allowed frequency is set too high or a wrong pump is used. The inverter will cut out power connection to the motor if overload occurs. The inverter will stay in the same fault mode with the error code displayed on the inverter until the inverter is being reset. Overcurrent protection Overcurrent may occur if, for example, a wrong cable size is used. The inverter will cut out power connection to the motor if the current falls outside the allowed current limits. The inverter will stay in the same fault mode with the error code displayed on the inverter until the inverter is being reset. Note: For the protection to function properly, the actual current value must be adjusted according to the maximum current attained at the maximum frequency shortly after the system started operation. 3

2 Performance range 2. Performance range Performance range SP pumps SQFlex is shown for comparison purposes. p [kpa] 6000 H [m] 600 4000 400 SP (+ RSI5500) SP (+ RSI4000) SP (+ RSI9200) 2000 200 1000 800 600 100 80 60 400 40 SQ FLEX 200 20 100 80 60 10 2 x SQ FLEX SP (+ RSI3000) 40 4 0.5 1 2 3 4 5 6 8 10 15 20 30 40 50 60 80 100 150 200 Q [m³/h] 0.2 0.4 0.6 0.8 1 2 4 6 8 10 20 Q [l/s] TM05 7594 1213 Fig. 1 Performance range, SP pumps 4

2 CR pumps CRFlex is shown for comparison purposes. TM06 1518 2514 Performance range Fig. 2 Performance range, CR pumps 5

EXTERNAL RUN STOP FAULT NORMAL STOP RUN DATA PROG STOP MODE ENTER WARNING: RSI 3000 For indoor installation only. Only to be serviced by qualified staff. Excessive input voltage will damage the equipment. Ensure proper wiring and grounding ( earth ). ELECTRIC SHOCK HAZARD DANGEROUS VOLTAGES AND CURRENTS 3 Applications 3. Applications The Grundfos Renewable Solar Inverter (RSI) system is designed for continuous as well as intermittent operation. The system is especially suitable for supplying water in applications such as: villages, schools, hospitals, and single-family houses farms and ranches, including watering of livestock and irrigation of crops and greenhouses game parks and game farms. The Renewable Solar Inverter system can be used in existing applications with submerged pumps or dry-installed pumps, thus providing a very wide range of applications. The only difference is that you use solar panels as the power supply. Application example The water production of an RSI system depends on the availability of solar power. The result is excess water production in the early afternoon and insufficient water production in the morning and late afternoon. A system equipped with a storage water tank enables stable water supply throughout the day. One junction box components kit is required for each set of inputs on the DC side. A junction box components kit contains a circuit breaker and surge protection to ensure maximum safety to the user as well as the system. Install the inverter in an indoor environment or cabinet with sufficient ventilation. See figs. 3 and 4. Installation example, submersible pump 5 4 12 13 4 3 9 3 1 11 2 1 Solar panel 2 Support structure 3 Circuit breaker DC 4 Surge protection DC* 5 Renewable Solar Inverter 6 SP pump 7 Cable 8 Submersible drop cable 9 Circuit breaker AC 10 Dry-running switch 11 Discharge pipe 12 Water tower/tank 13 Level switch 8 6 7 * If the distance between the solar panel and the inverter is more than 10 m, it is necessary to add extra surge protection closer to the solar panel. 10 TM06 1257 2014 Fig. 3 Installation example showing solar panels, solar inverter, submersible pump and water tank 6

4 System components 4. System components An RSI system consists of a suitable Grundfos pump (SP, CR), a Renewable Solar Inverter, ranging from 1.5 to 9.2 kw, and accessories. The RSI system is configured especially to run with the mentioned Grundfos pumps. The RSI system components are: a Grundfos pump (SP or CR) Renewable Solar Inverter junction box components kit, DC circuit breaker, DC surge protection, DC circuit breaker, AC solar panel dry-running switch level switch (optional). Type key Renewable Solar Inverter RSI is an off-grid solar inverter converting the DC power output from the solar panel to AC power supply for pump operation. The RSI inverter has a built-in MPPT software, protection features as well as operating history memory, see System components. The maximum power delivered to the motor ranges from 1.5 to 9.2 kw. The RSI inverter has either one set, two sets or four sets of power inputs. Each set of inputs has a limit of maximum 750 V (standard range) or 430 V (low voltage range) and 15 A from the solar panel. Indoor installation requires ventilation. Code Example RSI 3000 L RSI = Renewable Solar Inverter 3000 = Max. power input to motor [W] L = Low voltage RSI 3000 EXTERNAL RUN STOP FAULT NORMAL STOP RUN DATA PROG STOP MODE ENTER Pumps Grundfos SP and CR pumps are available as complete units or as separate motor or pump. Pump requirements for RSI system: Rated frequency can be either 50 or 60 Hz. Must be able to operate with a voltage supply of 3 x 380 VAC or 3 x 220 VAC. Standard SP and CR pumps can only be operated via an AC voltage supply. Therefore, the solar panels must not be connected directly to the pump but must be connected via the RSI. Fig. 6 RSI inverter The RSI inverter combined with controller and protection units can be used for: maximum power point tracking (MPPT) DC to three-phase AC conversion connection to dry-running switch connection to level switch operating history inquiry. WARNING: For indoor installation only. Only to be serviced by qualified staff. Excessive input voltage will damage the equipment. Ensure proper wiring and grounding ( earth ). Distributed by ELECTRIC SHOCK HAZARD DANGEROUS VOLTAGES AND CURRENTS Warning CUE is not suitable for off-grid solar system use. TM05 7579 1213 Fig. 5 SP CR Grundfos pumps suitable for RSI systems TM05 7729 1513 - TM06 1253 1914 8

4 Circuit breaker, AC An AC circuit breaker is a standard circuit breaker used for normal three-phase power connection. Solar panel The solar panel offered by Grundfos is specially selected for Grundfos renewable products. All Grundfos solar panels are equipped with plugs and sockets enabling easy connection. The number of solar panels required depends on the water quantity required, water pressure required and installation location. Dry-running switch The dry-running switch is recommended for all submersible pump operation. The switch can prevent the risk of the pump operating in a dry well, which could result in damage of the pump. Junction box components kit, DC Circuit breaker, DC Surge protection, DC Fig. 9 Surge protection The DC surge protection is suitable for the solar-powered RSI system. The surge protection gives a very safe and reliable protection of the system by having a quick response. At least one DC surge protection is required for each set of inputs to the RSI inverter. We recommend that you install two DC surge protections for each set of inputs if the distance between the solar panel and the inverter is more than 10 m. 53.4 64.8 58 43.5 TM05 7582 1213 System components L L Fig. 7 Circuit breaker TM05 7581 1213 85 45 The DC circuit breaker is suitable for the solar-powered RSI system. The circuit breaker enables manual starting and stopping of the system. At least one DC circuit breaker is required for each set of inputs to the RSI inverter. We recommend that you install two DC circuit breakers for each set of inputs if the distance between the solar panel and the inverter is more than 10 m. To install the circuit breaker, a torx screwdriver, Tx8, is needed. 95 95 Fig. 10 Dimensions [mm], surge protection Level switch (optional) A level switch serves as a start/stop control that depends on the water level in the storage water tank. Fig. 11 Level switch I ON 150 O OFF TM05 7586 1213 TM02 2407 4201 34.5 TM05 7585 1213 Fig. 8 Dimensions [mm], circuit breaker 9

EXTERNAL RUN STOP FAULT NORMAL STOP RUN STOP DATA MODE PROG ENTER WARNING: For indoor installation only. Only to be serviced by qualified staf. Excessive input voltage will damage the equipment. Ensure proper wiring and grounding ( earth ). ELECTRIC SHOCK HAZARD DANGEROUS VOLTAGES AND CURRENTS EXTERNAL RUN STOP FAULT NORMAL STOP RUN STOP DATA MODE PROG ENTER WARNING: For indoor installation only. Only to be serviced by qualified staf. Excessive input voltage will damage the equipment. Ensure proper wiring and grounding ( earth ). ELECTRIC SHOCK HAZARD DANGEROUS VOLTAGES AND CURRENTS 5 Technical data 5. Technical data Standard range Dimensions D D RSI 3000 2 x d RSI 3000 2 x d H H1 H H1 W1 W D1 TM05 4445_a 1813 W1 W D2 D1 TM05 4445_b 1813 Fig. 12 Product appearance and installation dimension of RSI 3000, RSI 4000 and RSI 5500 Fig. 13 Product appearance and installation dimension of RSI 9200 Dimensions [mm] Product type H W D H1 W1 D1 D2 d RSI 3000 310 250 200 295 235 167-6 RSI 4000 310 250 200 295 235 167-6 RSI 5500 310 250 200 295 235 167-6 RSI 9200 310 250 200 295 235 167 140.5 6 Technical data Product type RSI 3000 RSI 4000 RSI 5500 RSI 9200 Product number 98449972 98449973 98449975 98449977 Type of inverter Installation environment Electrical data Weight Packing Off-grid power inverter Off-grid power inverter Off-grid power inverter Off-grid power inverter Min. ambient temperature [ C] -10-10 -10-10 Max. ambient temperature [ C] 50 50 50 50 Max. relative humidity [%] 95 95 95 95 Max. P2, motor [kw] 3 4 5.5 9.2 Min. recommended MPP voltage [VDC] 530 530 530 530 Max. recommended MPP voltage [VDC] 600 600 600 600 Max. open circuit voltage [VDC] 750 750 750 750 Sets of power inputs 2 2 2 4 Max. input DC current per sets [A] 15 15 15 15 Min. frequency [Hz] 30 30 30 30 Max. frequency [Hz] 60* 60* 60* 60* Phases 3 3 3 3 Rated output voltage [VAC] 380 380 380 380 Rated output current [A] 9 13 18 24 Enclosure class IP41 IP41 IP41 IP41 Net weight [kg] 7.2 7.3 7.7 8.2 Gross weight [kg] 9.5 9.6 10 10.5 Length [mm] 425 425 425 425 Width [mm] 325 325 325 325 Height [mm] 285 285 285 285 * Depending on the selected pump. 10

EXTERNAL RUN STOP FAULT NORMAL STOP RUN STOP DATA MODE 1 2 3 4 PROG ENTER WARNING: For indoor installation only. Only to be serviced by qualified staf. Excessive input voltage will damage the equipment. Ensure proper wiring and grounding ( earth ). ELECTRIC SHOCK HAZARD DANGEROUS VOLTAGES AND CURRENTS 8 7 6 5 1 2 3 4 EXTERNAL RUN STOP FAULT NORMAL STOP RUN STOP DATA MODE PROG ENTER WARNING: For indoor installation only. Only to be serviced by qualified staf. Excessive input voltage will damage the equipment. Ensure proper wiring and grounding ( earth ). ELECTRIC SHOCK HAZARD DANGEROUS VOLTAGES AND CURRENTS 5 Low voltage range Dimensions Technical data D D RSI 1500L 2 x d RSI 3000 2 x d H H1 H H1 W1 W D1 TM06 1209 1914 W1 W D1 TM05 4445_a 1813 Fig. 14 Product appearance and installation dimension of RSI 1500L Fig. 15 Product appearance and installation dimension of RSI 3000L and RSI 4000L Dimensions [mm] Product type H W D H1 W1 D1 d RSI 1500L 244 202 146 232 187 113 6 RSI 3000L 244 202 146 232 187 113 6 RSI 4000L 310 250 200 295 235 167 6 Technical data Product type RSI 1500L RSI 3000L RSI 4000L Product number 98582540 98582547 98582550 Type of inverter Off-grid power inverter Off-grid power inverter Off-grid power inverter Installation environment Electrical data Weight Packing Min. ambient temperature [ C] -10-10 -10 Max. ambient temperature [ C] 50 50 50 Max. relative humidity [%] 95 95 95 Max. P2, motor [kw] 1.5 3 4 Min. recommended MPP voltage [VDC] 280 280 280 Max. recommended MPP voltage [VDC] 350 350 350 Max. open circuit voltage [VDC] 430 430 430 Sets of power inputs 1 2 2 Max. input DC current per sets [A] 15 15 15 Min. frequency [Hz] 30 30 30 Max. frequency [Hz] 60* 60* 60* Phases 3 3 3 Rated output voltage [VAC] 220 220 220 Rated output current [A] 11 17 25 Enclosure class IP54 IP54 IP54 Net weight [kg] 4 7.2 7.7 Gross weight [kg] 5.6 9.5 10 Length [mm] 355 425 425 Width [mm] 280 325 325 Height [mm] 225 285 285 * Depending on the selected pump. Technical data for circuit breaker, DC Voltage, DC [V] 1,000 Current [A] 16 Weight [kg] 1.05 Marking IEC 60047 Technical data for surge protection, DC Voltage, DC [V] 1,000 Current [A] 40,000 Weight [kg] 0.375 Marking CE 11

6 Product numbers 6. Product numbers Renewable Solar Inverter Standard range (3 x 380 VAC) RSI inverter Max. P2 to motor Product number RSI 3000 3 kw 98449972 RSI 4000 4 kw 98449973 RSI 5500 5.5 kw 98449975 RSI 9200 9.2 kw 98449977 Low voltage range (3 x 220 VAC) RSI inverter Max. P2 to motor Product number RSI 1500 L 1.5 kw 98582540 RSI 3000 L 3 kw 98582547 RSI 4000 L 4 kw 98582550 Junction box components kit Description Product number Junction box components kit, DC 98298572 Circuit breaker, DC 98341686 Surge protection, DC 98341687 Dry-running switch Level switch (optional) Description Product number Level switch 010748 High water level: Contact is closed. Low water level: Contact is open. Sine-wave filter Voltage Max. P2 to motor Product number 3 x 380 VAC 3 x 220 VAC 3 kw 4 kw 96754976 5.5 kw 7.5 kw 96754977 9.2 kw 96754978 1.5 kw 96754976 3 kw 96754977 4 kw 96754978 TM02 2407 4201 A B TM05 7457 1013 - TM06 1270 2014 Description Product number Dry-running switch for submerged pumps (A) 98347579 Dry-running switch for dry-installed pumps (B) 97911215 12

7 7. Appendix The tables below show the recommended cable size (diameter in mm 2 ) to be used between solar panel and RSI inverter in order to keep the power loss lower than 2 % at 20 C. Standard range (3 x 380 VAC) Appendix Current in cable [A] Distance between solar panel and RSI 30 m 60 m 90 m 120 m 150 m 180 m 210 m 240 m 270 m 300 m 330 m 360 m 390 m Recommended cable size [mm 2 ] 3 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 4 4 6 6 1.5 1.5 1.5 2.5 2.5 4 4 4 6 6 6 6 10 9 1.5 1.5 2.5 4 4 6 6 6 10 10 10 10 16 12 1.5 2.5 4 4 6 6 10 10 10 10 16 16 16 15 1.5 2.5 4 6 6 10 10 10 16 16 16 16 16 Low voltage range (3 x 240 VAC) Current in cable [A] Distance between solar panel and RSI 30 m 60 m 90 m 120 m 150 m 180 m 210 m 240 m 270 m 300 m 330 m 360 m 390 m Recommended cable size [mm 2 ] 3 1.5 1.5 1.5 2.5 2.5 2.5 4 4 4 4 6 6 6 6 1.5 2.5 2.5 4 4 6 6 6 10 10 10 10 16 9 1.5 2.5 4 6 6 10 10 10 16 16 16 16 16 12 2.5 4 6 6 10 10 16 16 16 16 25 25 25 15 2.5 4 6 10 10 16 16 16 25 25 25 25 25 13

8 Further product information 8. Further product information WebCAPS WebCAPS is a Web-based Computer Aided Product Selection program available on www.grundfos.com. WebCAPS contains detailed information on more than 220,000 Grundfos products in more than 30 languages. Information in WebCAPS is divided into six sections: Catalogue Literature Service Sizing Replacement CAD drawings. Catalogue Based on fields of application and pump types, this section contains the following: technical data curves (QH, Eta, P1, P2, etc.) which can be adapted to the density and viscosity of the pumped liquid and show the number of pumps in operation product photos dimensional drawings wiring diagrams quotation texts, etc. Literature This section contains all the latest documents of a given pump, such as data booklets installation and operating instructions service documentation, such as Service kit catalogue and Service kit instructions quick guides product brochures. Service This section contains an easy-to-use interactive service catalogue. Here you can find and identify service parts of both existing and discontinued Grundfos pumps. Furthermore, the section contains service videos showing you how to replace service parts. 14

0 1 8 Sizing This section is based on different fields of application and installation examples and gives easy step-by-step instructions in how to size a product: Select the most suitable and efficient pump for your installation. Carry out advanced calculations based on energy, consumption, payback periods, load profiles, life cycle costs, etc. Analyse your selected pump via the built-in life cycle cost tool. Determine the flow velocity in wastewater applications, etc. Further product information Replacement In this section you find a guide to selecting and comparing replacement data of an installed pump in order to replace the pump with a more efficient Grundfos pump. The section contains replacement data of a wide range of pumps produced by other manufacturers than Grundfos. Based on an easy step-by-step guide, you can compare Grundfos pumps with the one you have installed on your site. When you have specified the installed pump, the guide will suggest a number of Grundfos pumps which can improve both comfort and efficiency. CAD drawings In this section, it is possible to download 2-dimensional (2D) and 3-dimensional (3D) CAD drawings of most Grundfos pumps. These formats are available in WebCAPS: 2-dimensional drawings:.dxf, wireframe drawings.dwg, wireframe drawings. 3-dimensional drawings:.dwg, wireframe drawings (without surfaces).stp, solid drawings (with surfaces).eprt, E-drawings. WinCAPS WinCAPS is a Windows-based Computer Aided Product Selection program containing detailed information on more than 220,000 Grundfos products in more than 30 languages. The program contains the same features and functions as WebCAPS, but is an ideal solution if no internet connection is available. WinCAPS is available on DVD and updated once a year. Fig. 16 WinCAPS DVD 15

8 Further product information GO CAPS Mobile solution for professionals on the GO! CAPS functionality on the mobile workplace. Subject to alterations. 16

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