DELPHYS. Operating manual GB

DELPHYS DS Operating manual GB

UPS/NTA GB/DSEXPC1.F Certificate of Warranty The warranty conditions are stipulated in the sales contract, if not the following points shall apply. The manufacturer exclusively guarantees his own products against any defect in construction or operation arising from faulty design, materials or workmanship according to the conditions set down below. The manufacturer, at his discretion, is entitled to adapt his product in order to comply with the warranty or replace the faulty parts. The manufacturer s warranty does not apply in the following cases : - Defects arising either from designs or parts imposed or supplied by the Purchaser. - Failure due to fortuitous circumstances or force majeure. - Replacements or repairs resulting from normal wear of units and machinery, - Damage or injuries caused by negligence, lack of inspection or maintenance, or improper use of the products. The period of validity of the warranty may never exceed 12 months after delivery. Replacements, repairs or modifications of parts during the warranty period cannot extend the duration of the warranty. For these stipulations to be valid, the Purchaser must, within a maximum of 8 days beyond which the warranty lapses, expressly inform the Manufacturer of the faulty design, or the material or manufacturing defect, stating in detail the grounds for his complaint. Defective parts replaced free of charge by the Manufacturer are to be put at his disposal, so that he may become the sole owner. The warranty legally ceases if the Purchaser has, of his own initiative, undertaken modifications or repairs on the Manufacturer s products without the written consent of the latter. The Manufacturer s liability is limited to the obligations as defined herein (repair or replacement), all other items of damage being formally excluded. The Purchaser is liable for taxes or duties of any kind in compliance with either the European regulations, or those of the country of import or transit.

UPS/NTA GB/DSEXPC1.F FOREWORD We thank you for the trust you have in our Uninterruptible Power Supply. This equipment is fitted with up to date technology. It is provided with power semiconductors (IGBT) with a digital micro-controller. Our equipment complies with standard EN 50091-2 referring to Uninterruptible Power Supply, and to the standard CEI 146-4 (specific standard for UPS). SAFETY REQUIREMENTS Using conditions: Do read carefully these operation instructions before installing the UPS. Whatever the repairs, they must be made only by authorized staff, who have been suitably trained. It is recommended that the ambient temperature and humidity of the UPS environment are maintained below the values specified by the manufacturer. This equipment meets the requirements of the Community's directives applied to this product. As a consequence it is labelled as follows: This equipment is designed to a restricted distribution in compliance with the conditions defined by the standard EN 50091-2. As a consequence, restrictions to the installation or complementary steps may be needed to prevent possible electromagnetic interference.

CONTENTS UPS/NTA GB/DSEXPC1.F 1. SAFETY...3 2. PURPOSE AND UPS COMPOSITION...3 3. SWITCH LAYOUT...5 4. CONTROL PANEL...7 4.1. THE MIMIC PANEL...7 4.2. LCD DISPLAY...8 4.3. THE INTUITIVE USER INTERFACE...8 4.4. CONTRAST SETTING...9 4.5. MENU STRUCTURE...9 5. OPERATION OF THE SYSTEM...10 5.1. STARTING UP THE UPS...10 5.2. LOAD TRANSFER FROM INVERTER TO MAINS...10 5.3. LOAD TRANSFER FROM MAINS TO INVERTER...10 5.4. UPS SHUTDOWN WITH TRANSFER TO THE MANUAL BY-PASS...11 6. ALARM MONITORING...11 6.1. DISPLAY OF ACTIVATED ALARMS...11 6.2. RESETTING AN ALARM...11 6.3. LIST OF ALARMS...12 7. COMMENTS CONCERNING THE MENUS...12 7.1. MEASUREMENTS...12 7.2. UPS COMMANDS...13 7.3. OPERATING MODE...13 7.3.1. Changing the operating mode...14 7.3.2. Programming the Eco mode...14 7.4. EVENT LOG...14 7.5. BATTERY...15 7.5.1. Battery test information...15 7.5.2. Conditions to start the battery test...15 7.5.3. Test programming...15 7.5.4. Starting the manual test...15 7.6. UPS GENERAL DATA...16 7.6.1. Diagnostic codes...16 7.6.2. UPS references...16 7.7. STATUS MENU...17 7.7.1. UPS general status...17 7.7.2. Auxiliary inputs...17 7.8. SUBSET COMMAND...17 7.8.1. Rectifier ON / OFF...17 7.8.2. Inverter ON / OFF...18 7.8.3. Load on mains / load on inverter...19 7.8.4. Load disconnection / Load on inverter...19 7.9. CLOCK...20 7.10. CONFIGURATION...21 7.10.1. Language...21 7.10.2. Buzzer...21 7.10.3. Access code...22 7.10.4. Local / Remote...22 7.11. JBUS LINK...23 8. FLOATING CORRECTION ACCORDING TO THE TEMPERATURE...23 9. OVERLOAD MONITORING...24 9.1. IN MODE NORMAL...24 9.2. IN ECO MODE...25 10. REMAINING BACK UP TIME...25 ABBREVIATIONS : - UPS : Uninterruptible Power Systems - LCD : Liquid Crystal Display, - SC : Static contactor.

UPS/NTA GB/DSEXPC1.F - page 3 1. SAFETY ADVICE - Carefully follow the instructions described in this manual. - All handling must only be carried out by personnel who are suitably trained. CAUTION Do not forget that even when the load is stopped the unit is live : - because of the mains voltage the rectifier and the by-pass. - because of the voltage generated by the battery and by the rectifier. - because of the load voltage when the manual by-pass Q5 is closed and the by-pass mains is present. DANGER - Once the UPS is disconnected, wait 5 minutes for the capacitors to discharge. - the residual voltage of the capacitors may still cause heavy electrical arcs after 5 minutes. 2. PURPOSE AND UPS COMPOSITION The DELPHYS DS static supply protects the connected load, and maintains : - the supply continuity, - the voltage stability, - the frequency stability, whatever outages or disturbances on the upstream mains. When the upstream mains is present, the UPS acts as a stabilizer. In the event of a mains failure, it acts as a source of electrical power. In such case, the required power is supplied by the battery, which is kept charged when the mains is present. The UPS provides single-phase or three-phase sinusoidal output. The UPS is composed of : - 1 fully controlled three-phase rectifier, - 1 single-phase or three-phase P.W.M. (Pulse Width Modulation) inverter, - 1 static by-pass to transfer the load automatically and without interruption to the mains in the event of an overload, - 1 manual by-pass which allows a break-free load transfer to the mains during maintenance handling, - 1 battery, - 1 control panel made up of a mimic panel, an 8-line display and an intuitive user interface.

UPS/NTA GB/DSEXPC1.F - page 4 GENERAL PRINCIPLE DIAGRAM X10 X500 * by-pass transformer X40 Rectifier transformer ** Q4 Q5 (Manual by-pass) X20 Q20 auto-transformer 208V KM40 (load on inverter) CS (load on mains) Q3 X50 * Active link if rectifier and by-pass mains are separate. ** Not mounted if the following options are provided : by-pass and rectifier transformers or separate mains (See installation manual UPS/NTA GB/DSINS). Main options: rectifier transformer, by-pass transformer and auto-transformer 208V.

UPS/NTA GB/DSEXPC1.F - page 5 3. SWITCH LAYOUT DELPHYS DS 20kVA to 40kVA Description of switches : Q1 : rectifier input switch Q4 : automatic bypass switch Q5 : manual bypass switch Q500 Q1 Q4 Q5 Q3 Q3 : output switch Q500 : transfo input switch (option) DELPHYS DS 60kVA to 200kVA Description of switches : Q1 : not present on the 60-200kVA range (specific option excepted) Q4 Q5 Q3 Q4 : automatic bypass switch Q5 : manual bypass switch Q3 : output switch

UPS/NTA GB/DSEXPC1.F - page 6 DELPHYS DS 250kVA to 400kVA Q3 Q5 Q4 Q1 Description of switches : Q1 : rectifier input switch (Q1 is located in the TRANSFO cabinet if a 12-pulse rectifier is provided). Q4 : automatic bypass switch Q5 : manual bypass switch Q3 : output switch DELPHYS DS 600kVA to 800kVA Q4 Q5 Q3 Q1 Description of switches : Q1 : rectifier input switch Q4 : automatic bypass switch Q5 : manual bypass switch Q3 : output switch.

UPS/NTA GB/DSEXPC1.F - page 7 4. CONTROL PANEL The control panel is composed of : - 1 mimic panel with 11 leds - 1 eight-line LCD display (with up to 40 characters) - 1 four-key intuitive user interface 4.1.The mimic panel 2 4 1 5 11 3 6 7 10 9 8 Detailed table of the mimic panel description : LEDS Colour BLINKING LED OFF LED ON LED 1 MAINS 1 SUPPLY yellow mains within mains out of tolerances tolerances 2 RECTIFIER green rectifier off rectifier on yellow rectifier on and rectifier general alarm red Rectifier off and rectifier general alarm 3 BATTERY CHARGE yellow Battery discharging Battery alarm 4 INVERTER green Inverter off Inverter on yellow Inverter on and inverter general alarm red Inverter off and inverter general alarm 5 LOAD ON INVERTER green KM40 open KM40 is closed 6 TRANSFER IMPOSSIBLE yellow transfer impossible 7 LOAD OUTPUT red (Q3 and KM40 (KM40 and SC open) or (Q3 and Q5 open) imminent stop closed) or (Q3 closed and SC conducts) or (Q5 closed) 8 LOAD MAINS green SC does not SC conducts in eco mode conduct yellow SC does not SC conducts in mode normal conduct 9 MAINS 2 SUPPLY yellow mains within tolerances mains out of tolerances by-pass fault and transfer impossible 10 MANUAL BY-PASS yellow Q5 open Q5 closed Q3 and Q5 closed 11 GENERAL ALARM yellow no alarm general alarm

UPS/NTA GB/DSEXPC1.F - page 8 4.2. LCD display Various screens can displayed : - the permanent display by default A B Load supplied by inverter Load rate: 0 50 100 120 C A) The load supply source is displayed (load on inverter, load on mains, manual by-pass). B) The various UPS operating modes and actual alarms are displayed (operating on battery, battery test...) C) The load rate is displayed. Note: if the " " icon is displayed, some maintenance has to be planned. - The menu screen A MEASUREMENTS UPS COMMAND OPERATING MODE EVENT LOG AUTOMATIC START UP LOAD ON MAINS TRANSFER TO MANUAL BYP B A) The menus for the different functions of the UPS software are displayed. B) The submenus related to the selected menu are highlighted on the display. Note : the remaining displays are described in the corresponding paragraphs. 4.3. The intuitive user interface It provides a user friendly control panel It is composed of : - a validation key "OK", - an "ESC" key to go back to the previous screen, - two scrolling keys : "tu".

UPS/NTA GB/DSEXPC1.F - page 9 4.4. Contrast setting The display contrast is set by the factory. It is automatically adjusted according to the local temperature. No setting is required. 4.5. Menu structure Load supplied by inverter Load rate : 0 50 100 120 "OK" u t MEASUREMENTS "OK"4 UPS GENERAL OUTPUT BY-PASS. INVERTER MAINS RECTIFIER - BATTERY UPS COMMAND "OK"4 AUTOMATIC START UP LOAD ON MAINS / LOAD ON INVERTER TRANSFER TO MANUAL BY-PASS OPERATING MODE "OK"4 TRANSFER TO NORMAL MODE / ECO MODE ECO MODE PROGRAMMING EVENT LOG "OK"4 LATEST EVENTS EARLIEST EVENTS BATTERY UPS GENERAL DATA "OK"4 "OK"4 BATTERY TEST INFORMATION BATTERY TEST PROGRAMMING BATTERY MEASUREMENTS BATTERY MANUAL TEST DIAGNOSTIC CODES UPS REFERENCES STATUS "OK"4 UPS GENERAL STATUS AUXILIARY INPUTS SUBSET COMMAND CLOCK "OK"4 "OK"4 RECTIFIER ON / OFF INVERTER ON / OFF LOAD ON MAINS / LOAD ON INVERTER LOAD DISCONNECTED / LOAD ON INVERTER PROGRAMMING CONFIGURATION "OK"4 LANGUAGE BUZZER ACCESS CODE LOCAL / REMOTE JBUS LINK "OK"4 PROGRAMMING u

UPS/NTA GB/DSEXPC1.F - page 10 5. OPERATION OF THE SYSTEM The «UPS COMMAND» menu is designed for the operation of the UPS. 5.1. Starting up the UPS - The applying voltage is O.K. upstream from the UPS, - close switches Q4, (Q500 and/or Q1 if any), - wait for the control panels to light up. The UPS is started from the "automatic start up" menu through an interactive procedure. Just follow the instructions displayed and your choice or action when "OK" is displayed. Title screen / UPS commands / automatic start up UPS COMMANDS : AUTOMATIC START UP CONFIRM THE START UP WITH UPS SYSTEM OUTPUT SWITCHING ON ESC OK 5.2. Load transfer from inverter to mains The load transfer from inverter to mains is achieved from the "load on mains" menu, which enables the manual switching of the load from the inverter source to the unsecured mains source. Title screen / UPS commands / automatic start up SUBSET COMMAND : LOAD ON MAINS CONFIRM TRANSFER TO LOAD ON MAINS 'ESC' 'ok' 5.3. Load transfer from mains to inverter The load transfer from mains to inverter is achieved from the "load on inverter" menu, which enables the manual switching of the load from the unsecured mains source to the inverter source. Title screen / UPS commands / automatic start up SUBSET COMMAND : LOAD ON INVERTER CONFIRM TRANSFER TO LOAD ON INVERTER Cancel 'ESC' 'ok'

UPS/NTA GB/DSEXPC1.F - page 11 5.4. UPS shutdown with transfer to the manual by-pass The UPS transfer is achieved from the "transfer to manual byp" menu which enables the operator to transfer the load to the UPS manual by-pass through an interactive procedure. Just follow the instructions displayed and the choice or action when "OK" is displayed. Title screen / UPS commands / automatic start up UPS COMMANDS: TRANSFER TO M. BYPASS CONFIRM START OF PROCEDURE FOR LOAD VIA MANUAL BYPASS ESC OK CAUTION Do not forget that even when the load is stopped the unit is live : - because of the mains voltage, the rectifier and the by-pass. - because of the voltage generated by the battery and by the rectifier. - because of the load voltage when the manual by-pass Q5 is closed and the by-pass mains is present. 6. ALARM MONITORING The alarm monitoring facility is divided up into 3 steps : - the activation of the alarm, - the reset, - the permanent display of activated alarms. 6.1. Display of activated alarms When an alarm is activated, the wording is displayed and a sound signal is given (buzzer). 6.2. Resetting an alarm The alarms can be reset by means of the "OK" key. Thus, the sound alarm is silenced, but its wording remains displayed as long as the alarm is activated. If several alarms are displayed, each of them need to be silenced individually.

UPS/NTA GB/DSEXPC1.F - page 12 6.3.List of alarms Wording Comments Imminent stop Informs about the risk of load disconnection Battery discharged End of back up time Operating on battery The UPS is operating on battery Battery alarm May be several causes : end of slow discharge, battery connection open, battery discharged. Battery faulty Battery test failed Battery circuit open Switch Q20 is open Backfeed protection alarm Backfeed protection open Transfer blocked Due to 4 transfers within 60 seconds Inverter or mains source can still be chosen. Transfer impossible The load can not be transferred from one source to another (mains or inverter) Battery local alarm Information concerning the battery room Manual by-pass fault Q5 and Q3 close simultaneously By-pass general alarm Activated if an alarm or a fault occurred on the by-pass Inverter general alarm Activated for every fault or alarm related to the inverter UPS overloaded While on inverter, if the load rate is > 103% While on mains, if the load rate is > 105% Rectifier general alarm Activated for every fault related to the rectifier Monitoring general alarm Summary of alarms of the unit monitoring. Mimic panel general alarm Communication failure between: - the mimic panel and the alarm transfer PCB (FU630), - the mimic panel and the micro controller PCB Note : The information "UPS GENERAL ALARM" is not listed in the above-mentioned table. Led 11 on the mimic panel is on when it is active. It can be programmed on the output relays of the alarm transfer PCB. 7. COMMENTS CONCERNING THE MENUS 7.1. Measurements This menu enables to display UPS measurements. Displays can be scrolled by pressing keys "tu" Title screen / measurements / output. OUTPUT MEASUREMENTS LOAD SUPPLIED BY INVERTER U12=400V V1=230V I1= 150A S= 100kVA U23=400V V2=230V I2= 151A F= 50,1Hz U31=400V V3=230V I3= 150A

UPS/NTA GB/DSEXPC1.F - page 13 Title screen / measurements / By-pass mains - Inverter BYP MAINS MEASUREM. INV. MEASUREMENTS U12=400V U12=401V U23=401V F=50,1Hz U12=401V F=50,1Hz U31=399V Title screen / measurements / Rectifier - battery 7.2. UPS Commands RECT. MEASUREMENTS U12=402V BATT. MEASUREMENTS U12=400V Vdc=450V U12=401V IDC= 30A Ibat= +6A U31=399V F=50,1Hz Tbat=25 C The UPS command menu enables (Please refer to 5) : - the automatic start up (interactive procedure) - the transfer to manual by-pass (interactive procedure), - the transfer from the inverter to the mains, - the transfer from the mains to the inverter. Title screen / UPS commands UPS COMMANDS I AUTOMATIC START UP I I LOAD ON MAINS I I TRANSFER TO M. BYP I I LOAD ON INVERTER I Note Commands are only displayed when available. 7.3. Operating mode The UPS can either operate in the normal or eco mode. The mode can be selected manually or programmed automatically. Mode normal : Eco mode : the load is supplied by the inverter. Should a problem occur on the path of the by-pass mains, the load is automatically transferred from the inverter to the mains. the load is supplied by the mains. Should a problem occur on the path of the by-pass mains, the load is automatically transferred from the mains to the inverter.

UPS/NTA GB/DSEXPC1.F - page 14 7.3.1. Changing the operating mode - transfer to Eco mode Title screen / Operating mode / Transfer to eco-mode. OPERATING MODE : TRANSFER TO ECO MODE CONFIRM UPS OPERATION IN ECO MODE ESC OK - transfer to Normal mode Title screen / Operating mode / Transfer to Normal mode. OPERATING MODE : TRANSFER TO NORMAL MODE CONFIRM UPS OPERATION IN NORMAL MODE ESC OK 7.3.2. Programming the Eco mode This menu enables a weekly programming of UPS operating periods in Eco mode. Information to be set are as follows: - activation or de-activation of the function, - day for transfer to Eco mode, - Time of transfer to Eco mode, - Day of return to Normal mode, - Time of return to Normal mode. Title screen / Operating mode / Eco mode programming OPERATING MODE : ECO MODE PROGRAMMING Transfer to ECO MODE: AUTOMATIC ECO MODE: Friday at 20:00 MODE NORMAL: Monday at 06:00 7.4. Event log Principle : The UPS has a memory enabling the record and date all alarms, status or commands that could arise during operation. This memory is saved utilising a separate supply. The log can record up to 500 items according to the FIFO principle (First In - First out). When the log is filled up, the latest information recorded overwrites the earliest one.

UPS/NTA GB/DSEXPC1.F - page 15 Use : To improve the user-friendliness of the display, the information is displayed over six lines. "t" : to scroll up to previous line, "u" : to scroll down to next line, Title screen / event log EVENT LOG : 03/01/2000 12:03:47 UPS automatic start up no 12:17:35 load not supplied no 12:20:20 load on inverter yes 12:21:30 output switch q2/q3 closed yes 12:32:12 battery discharged no 7.5. Battery 7.5.1. Battery test information This menu provides information to show: - the result of the latest battery test (OK or faulty), - date and time of the latest battery test, - date and time of the next battery test. 7.5.2. Conditions to start the battery test The battery test can only be started if the following conditions are fulfilled : - rectifier operating - no overload on inverter - by-pass available - battery circuit closed - no rectifier mains outage for at least 48 hours. 7.5.3. Test programming Title screen / battery / battery test programming BATTERY : BATTERY TEST PROGRAMMING BATTERY TEST: inactive PROGRAMMED ON: Friday at 20:00 EVERY: 8 days? The battery test can be made automatic from the control panel by setting the frequency, the day of the week and the time. 7.5.4. Starting the manual test The test conditions being fulfilled, the manual test can be started by entering the menu "BATTERY / BATT MANUAL TEST " from the UPS control panel.

UPS/NTA GB/DSEXPC1.F - page 16 7.6. UPS general data 7.6.1. Diagnostic codes Title screen / UPS general data / diagnostic codes. UPS GENERAL DATA: DIAGNOSTIC CODES STATUS ALARMS DIAGNOSTIC RECT: I00100000 I00000000 I00000000 INV: I00C00000 I00000000 I00000000 BYP: I00001000 I00000000 I00000000 COM: I00000000 I00000000 I00000000 SYN: I00000000 I00000000 I00000000 The summary of diagnostic codes enables the display on one single screen all basic information. Items are coded by subset and by category (Status, Alarms, Faults). For the global overview, the information is displayed in hexadecimal coding. In case of UPS failure, the customer can transmit these codes to the SERVICE DEPARTMENT for complete diagnostic. 7.6.2. UPS references Title screen / UPS general data / UPS references This menu displays the following unit information : - unit number, - serial number, - power in kva.

UPS/NTA GB/DSEXPC1.F - page 17 7.7. Status menu 7.7.1. UPS general status Title screen / status / UPS general status. The activation or de-activation of each state is confirmed by YES or NO. By means of the up and down keys, you can scroll the list. At the beginning of the list t is not displayed, and u is not displayed at its end. List of STATES Wording General by-pass mains out of tolerance Emergency stop Battery charging Monitoring in remote mode SC conducts Operation in ECO mode Operation in generator set Contactor KM40 closed Output switch Q2/Q3 closed Manual by-pass switch Q5 closed Synchronise to by-pass supply Synchronise to external supply Test battery interrupted Comments By-pass mains absent External information Battery charging I > Battery floating I Following a command on the control panel, the remote control is master ON request for static contactor External information Auxiliary contact of contactor KM40 Auxiliary contact of switch Q3 Auxiliary contact of switch Q5 The inverter synchronisation source is the by-pass mains The inverter synchronisation source is the external mains (UPS with ACS option) If voltage fault or rectifier mains frequency fault 7.7.2. Auxiliary inputs Title screen / status / auxiliary inputs. Auxiliary inputs on the input output interface are available to take into account UPS options or external information. 7.8. Subset command 7.8.1. Rectifier ON / OFF It enables the starting or stopping of the rectifier manually. To access the command : Title screen / subset command / rectifier ON OFF For the ON command, the following message is displayed : SUBSET COMMAND:RECTIFIER ON CONFIRM RECTIFIER ON Cancel 'ESC' 'ok'

UPS/NTA GB/DSEXPC1.F - page 18 For the OFF command, the following message is displayed : SUBSET COMMAND: RECTIFIER OFF CONFIRM RECTIFIER OFF 'ESC' 'ok' To the command, press the "OK" key ; to press they "ESC" key on the user interface. 7.8.2. Inverter ON / OFF It enables the starting or stopping of the inverter manually. To access the command : Title screen / subset command / inverter ON - OFF. For the ON command, the following message is displayed : SUBSET COMMAND:INVERTER ON CONFIRM INVERTER ON 'ESC' 'ok' For the OFF command, the following message is displayed : SUBSET COMMAND:INVERTER OFF CONFIRM INVERTER OFF 'ESC' 'ok' To the command, press the "OK" key; to press they "ESC" key on the user interface.

UPS/NTA GB/DSEXPC1.F - page 19 7.8.3. Load on mains / load on inverter This menu enables : - the manual transfer the load to inverter from the mains. - the manual transfer the load to mains when the load is on inverter or disconnected. To access the command : Title screen / subset command / load on mains load on inverter. For the load on mains command, the following message is displayed : SUBSET COMMAND:LOAD ON MAINS CONFIRM TRANSFER TO LOAD ON MAINS 'ESC' 'ok' For the load on inverter command, the following message is displayed : SUBSET COMMAND:LOAD ON INVERTER CONFIRM TRANSFER TO LOAD ON INVERTER 'ESC' 'ok' To the command, press the "OK" key; to press they "ESC" key on the user interface. 7.8.4. Load disconnection / Load on inverter This menu enables the operator to: - disconnect the load manually - transfer the load manually to the inverter when the mains is absent To access the command : Title screen / subset command / load disconnected load on inverter. For the load disconnection command, the following messages are displayed : SUBSET COMMAND:LOAD DISCONNECTION CONFIRM DISCONNECTION OF GENERAL OUTPUT 'ESC' 'ok'

UPS/NTA GB/DSEXPC1.F - page 20 SUBSET COMMAND:LOAD DISCONNECTION CAUTION! : CONFIRM LOAD DISCONNECTION 'ESC' 'ok' Note : twice to disconnect the load. For the load on inverter command, the following message is displayed : SUBSET COMMAND:LOAD ON INVERTER CONFIRM TRANSFER TO LOAD ON INVERTER 'ESC' 'ok' To the command, press the "OK" key; to press they "ESC" key on the intuitive user interface. 7.9. Clock The UPS is fitted with a clock that enables the time and date of every event to be known. The clock can only be set from the control panel. Title screen / clock / programming CLOCK I PROGRAMMING I I FRIDAY 09:09:21 I I I 30/05/2000 I I The "OK" key enables to select the field to be modified. The "ESC" key enables to return to the previous field. The scrolling keys "t u" enable to change the parameters of the selected field.

UPS/NTA GB/DSEXPC1.F - page 21 7.10. Configuration 7.10.1. Language Six different languages are available : French, English, German, Italian, Spanish and Dutch. You can choose three of them to be programmed on the control panel. Title screen / configuration / language CONFIGURATION:LANGUAGE t Language: FRENCH u ESC OK The scrolling "t u" enable to select the appropriate language. 7.10.2. Buzzer The buzzer can be activated or de-activated when the alarm appears by means of the scrolling keys "t u". The buzzer is activated by default. Title screen / configuration / buzzer. CONFIGURATION:BUZZER t Buzzer: YES u ESC OK

UPS/NTA GB/DSEXPC1.F - page 22 7.10.3. Access code The access code enables to lock the access to the following menus : - UPS COMMANDS, - OPERATING MODE, - BATTERY / BATT TEST PROGRAMMING, - SUBSET COMMAND, - CLOCK, - CONFIGURATION, - JBUS LINK. Title screen / configuration / access code. CONFIGURATION : ACCESS CODE Type new access code:?????? The "OK" key enables to select the field to be modified. The "ESC" key enables to return to the previous field. Keys "t u" enable to change the parameters of the selected field. This code can only be set from the control panel. It can contain up to 6 characters from "A" to "Z" and "0" to "9". CONFIGURATION: ACCESS CODE CONFIRM NEW ACCESS CODE:?????? ESC OK 7.10.4. Local / Remote The UPS can be fitted with a remote control. By default the control panel is the master while the remote control is the slave. The local / remote menu enables the operator to convert the remote control into the master : thus the control panel automatically becomes the slave. This command can only be made from the control panel. Title screen / configuration / local - remote CONFIGURATION:LOCAL-REMOTE t Switch to: LOCAL MONITORING u ESC OK

UPS/NTA GB/DSEXPC1.F - page 23 7.11. JBUS link This menu enables the operator to set the JBUS link. Configuration parameters are : - the baudrate (1200 to 19200), - the parity (none, even, odd), - the slave number (001 to 255). Title screen / JBUS link / programming. JBUS LINK I PROGRAMMING I I baudrate: 19200 I I Parity: NONE I I Slave: 001 I 8. FLOATING CORRECTION ACCORDING TO THE TEMPERATURE DELPHYS DS UPSs can be fitted with a temperature probe enabling the adjustment of the rectifier floating voltage according to the battery ambient temperature. This feature ensures a greater reliability of the battery life. Floating voltage values are to be used in accordance with the data provided by the battery manufacturer. Equipment required : An additional temperature probe (provided as a standard in our cabinets) mounted in the battery room and connected to the unit on the "input - output FU610" interface PCB. Principle : - Battery manufacturers impose an accurate floating voltage per cell for a given temperature, usually 2,25V/cell at 25 C or 2,27V/cell at 20 C. - Between 0 and 45 C, the floating voltage is adjusted according to a «slope» that can be set by the factory for each type of battery. This slope can range from 2mV to 8mV/ C/cell. - The battery temperature displayed on the control panel can vary from 0 to 75 C. - In case the ambient temperature exceeds 45 C, the floating voltage remains at the floating value of 45 C.

UPS/NTA GB/DSEXPC1.F - page 24 An alarm for the battery is given : - if the temperature exceeds 40 C, - if the temperature sensor or the connection system fails. Example : Ufloating(V) 422,5 405 391 2mV/ C/cell 4mV/ C/cell 8mV/ C/cell 0 25 45 75 T( C) 9. OVERLOAD MONITORING 9.1. In mode normal Principle : The UPS overload monitoring is based on reference levels. The overload principle can be compared to a tank, filling up more or less rapidly. Signalling and automatic actions : The UPS OVERLOAD alarm is activated if : - the load rate exceeds 103% ("LOAD ON INVERTER"), - the load rate exceeds 105% ("LOAD ON MAINS"). The alarm disappears if the load rate drops below 100% Typical UPS overload < 30 C (load on inverter) Overload rate Transfer to mains is possible Transfer to mains is impossible 110% 30 minutes 60 minutes 125% 10 minutes 10 minutes 150% 30 seconds 1 minute NOTE : Should an extended overload occur, the static contactor warms up which results in the disconnection of the load after some time. If the load is supplied by the by-pass mains following an automatic transfer, no return to the inverter is possible as long as the UPS is overloaded and the UPS OVERLOAD alarm has not been reset.

UPS/NTA GB/DSEXPC1.F - page 25 9.2. In eco mode The UPS OVERLOAD alarm is activated when the load rate exceeds 105%. In such a case, the static contactor warms up. When the by-pass general alarm is given, the static contactor stops conducting and the load is therefore no longer supplied. 10. REMAINING BACK UP TIME The remaining back up time is displayed on the control panel when the UPS operates in autonomy. The calculation is obtained from the battery capacity and the Ampères per hour consumed by the load.