User Manual - Electrocomponents
Contents
1. eene 15 2 5 Installation of the communications card option eerrnnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 15 2 6 Connection to the connection modules cessent 16 Operation EE MEO EDI Bio 17 ONLINE MOJE 17 EGO MOJE vunne ende EE a EE pa a EA Tae E EE SiE tacts ke Taa EREA 17 3 2 StartUp oinaan aaa a a anaa aaa Eaa aR EA EDAH aaa a ANa Daa a A EDA Aaaa ANa A Awak 18 3 3 Ba rgraph indications au 1o Its etettodo n orien iet ee Leod na erba k ka teo EO eee 18 3 4 Failure of AC input power and operation on battery power eeeeseeeeeeeeeeeeneee 19 Transfer to battery power cccccccscceceeeecceeeeeeeeeeeaaeeeeeeseaaeeeeeeceeaeeeeeeescaaeeeeesseaaaeeeeeseeceeeeeseeeaees 19 Threshold for the low battery shutdown warning sssssssssssssseeeenneeeenneen enne 19 End of BACKUP tlme P M 19 Nieder EE Re RE 19 Return of AC input power c ccceececccceceeeeeeeneeeeeeeceeaeeeeeeeeeaeeeeeeeeenaaeeeeeeseaaeeeeeeeseeeeeeeeneeeeeeeeeed 19 51033212EN AA Page 5 Contents Page 6 51033212EN AA 3 5 IPersonalizatiOH 5 2 iie cer see rca it aa cesa etate ec Las sa bera reiret 20 iiec per TETEN 20 ON HOFF conditions ab ie risotto adressat mid 20 Battery tab neri bete eet Menu eiet 21 Q tput TaD ss c2. 2 3 or 14 flash there is a operating anomaly or an alarm If a LED flashes the bargraph data is no longer displayed Troubleshooting not requiring MGE after sales support Indication Signification 4 Maintenance Correction LED 11 flashes and the buzzer beeps UPS overload Overload is too long or too high The UPS cuts the supply of power to the connected equipment and the buzzer sounds continuously Check the power drawn by the equipment and disconnect any non priority devices LED 14 flashes The ambient temperature is higher than 40 C The UPS is not designed to N operate more than eight hours under these conditions Install the UPS in a room where the ambient temperature is not greater than 40 C LED 17 is ON The UPS is in maintenance mode bypass Turn the manual bypass switch to NORMAL position 51033212EN AA Page 23 4 Maintenance Troubleshooting requiring MGE after sales support Indication Signification Correction LED 12 flashes and the buzzer beeps UPS electronics have detected a UPS fault Depending on the UPS personalization parameters see section 3 5 there are two possibilities the equipment connected to the UPS continues to be supplied but directly from the AC power source via the automatic bypass LED ON the connected equipment is no longer supplied 9 The equipment connected to e the UPS is n
3. The frequency regulation rate of the first UPS must be set to Standard the frequency regulation rate of the second UPS must be set to Redundancy Rotary switch controlled by the user used to connect the equipment directly to the AC power source Transfer of the load to the manual bypass enables UPS maintenance or replacement without interrupting the supply of power to the connected equipment The normal UPS operating mode by which the AC power source supplies the UPS which in turn following double conversion of the AC power supplies the connected equipment Ratio between the power drawn by the connected equipment and the total power that the UPS can supply A number of UPS functions can be modified using the UPS Driver software to better meet the user s needs See Frequency regulation rate This function shuts down the UPS when it operates on battery power and no load is detected on the UPS output This function makes it possible to energize the connected equipment even when AC input power is not available operation exclusively on battery power The range of frequency supplied by the AC power source within which the UPS can operate in ON LINE mode double conversion Uninterruptible Power Supply It is possible to enable or disable use of UPS ON OFF controls by the computer system protection software 6 2 Index A AC power Fallure retener FE OBS 19 Frequency tolerance ss
4. and the equipment A window in a computer program displayed for selection by the user of various options and parameter settings The power supplied to the connected equipment is completely regenerated by continuous double conversion i e the AC power from the AC power source is rectified AC DC then converted back DC AC to AC power Operating mode by which the equipment is supplied directly by the AC power source if it is within the tolerances defined by the user This mode reduces the consumption of electrical power Devices or systems connected to the UPS output Ten second interruption in the supply of power to the connected equipment following a system shutdown even if AC input power returns during the interruption period 51033212EN AA Page 27 SSS 6 Appendices Frequency regulation rate Manual bypass ON LINE mode Percent load Personalization Redundancy Sleep mode Start on battery power Tolerance for AC power source frequency UPS UPS ON OFF via software Page 28 51033212EN AA The rate at which the UPS frequency is synchronized with that of the AC power source Two possible cases 1 The installation comprises a single UPS The frequency regulation rate is set to Standard 2 The installation comprises two UPSs connected in series The AC power source supplies power to the first UPS which in turn supplies the second UPS The connected equipment is supplied by the second UPS
5. 9 and 12 kVA Check that the battery circuit breaker 2 is OFF 3 Connect cable 27 to the connectors 4 of the electronic and O battery modules 27 Page 14 51033212EN AA 2 Installation 2 4 Connection to the RS 232 communications port optional O 1 Connect the RS 232 communications cable 62 to the serial port on the computer 2 Connect the RS 232 communications cable 2 to the RS 232 communications port Don the UPS The UPS can now communicate with all MGE UPS SYSTEMS supervision set up or safety software Pin out diagram for the RS 232 communications port D on the UPS 2 5 Installation of the communications card option Slots for communications card It is not necessary to shut down the UPS to install the communications card 1 Remove the slot cover 3 2 Insert the card in the slot 3 Secure the card with the two screws 51033212EN AA Page 15 2 Installation 2 6 Connection to the connection modules This type of connection must be carried out by qualified electrical personnel Before carrying out any connections check that the battery circuit breaker Qo is OFF N and that the upstream protection devices AC power source are open OFF The overall cable diameter and the cross sectional area
6. contains lead acid batteries Lead is a dangerous substance for the environment if it is not correctly recycled by specialized companies Web site www mgeups com Page 26 51033212EN AA 6 1 Glossary Authorized voltage range for operation in ECO mode Authorized voltage range for transfer to bypass if fault or overload Automatic bypass Automatic start following return of AC input power Backup time Bargraph Battery test Cold start Connection module Dialog box Double conversion ECO mode Equipment Forced shutdown Ex 6 Appendices The range of voltage supplied by the AC power source within which the UPS can operate in ECO mode In this mode the equipment connected to the UPS is supplied directly by the AC power source via the automatic bypass Upper and lower voltage thresholds within which the UPS can operate on the automatic bypass in the event of a UPS fault or overload Automatic switch controlled by the UPS used to connect the equipment directly to the AC power source When AC input power returns following shutdown at the end of the battery backup time UPS automatic start can be enabled or disabled Time that the connected equipment can operate on battery power Device on the front panel indicating the percent remaining backup time or the percent load Internal UPS test on battery status See Start on battery power Unit grouping the receptacles for connection to the AC power source
7. 177 4U x 483 x 462 Weight in kg Electronic module 27 Battery module 51 1 Presentation 1 2 Back Comet EXtreme 4 5 and 6 kVA RS232 communications port battery circuit breaker communications card option connector for battery extension modules rating plate t manual by pass switch connection module 1 s L 4 EXB battery module connector 5 7 9 000000000000000000 00000000000 J output terminal block 10 input terminal block Comet EXtreme 9 and 12 kVA gl 000000000000000000 0000000000 0000000000 o 000000000 00000000000 0000000 51033212EN AA Page 9 PR 1 Presentation 1 3 Control panel TI III oO Go EG oo Page 10 51033212EN AA Alarms UPS overload electronics fault battery fault ambient temp gt 40 C hold down to display percent load Ng ZIN battery remaining 100 80 50 20 load 100 80 50 20 lamp test or b
8. Enabled Page 20 51033212EN AA Battery tab 3 Operation Personalizable function Default setting Options Battery test intervals Every day Once a week Once a month No test Low battery shutdown warning threshold 20 remaining battery 40 remaining battery Output tab By pass tab backup time backup time Charger Standard CLA 2 4 or 8 hours Rated AC power source voltage see figure 1 230 V 200 V 208 V 220 V 240 V Rated AC power source frequency 50 Hz 60 Hz Tolerance for AC power source frequency fig 2 t 596 t 196 to 10 in 1 steps Frequency regulation rate Standard Redundancy see section 6 1 Alarm threshold for overload 10096 0 to 10096 in 10 steps Restart inverter after short circuit Disabled Enabled click to add check Authorized voltage range for transfer to bypass 187 V to 265 V for 187 V to 265 V see figure 3 if fault or overload 230 V rated voltage in 1V steps Authorized frequency range for transfer to bypass 10 t 196 to 10 in 1 steps see figure 2 if fault or overload Transfer to bypass if overload Enabled Disabled click to remove check Transfer to bypass following a fault whatever Disabled Enabled click to add check the conditions on the AC power source Fig 1 Available power as a percentage 120 200 208 220 230 240 Voltage in V The value selected for the rated UPS voltage impa
9. and user manual S Ld n w Ld al N ANG bs Comet EXtreme 4 5 6 9 12 kVA W A V Se V n JA DA4NSXN NN M MM ff MGE UPS SYSTEMS Introduction Page 2 51033212EN AA Thank you for selecting an MGE UPS SYSTEMS product to protect your electrical equipment The Comet EXtreme range has been designed with the utmost care We recommend that you take the time to read this manual to take full advantage of the many features of your UPS MGE UPS SYSTEMS pays great attention to the environmental impact of its products Measures that have made Comet EXtreme a reference in environmental protection include production in an ISO 14001 certified factory recycling of Comet EXtreme at the end of its service life To discover the entire range of MGE UPS SYSTEMS products and the options available for the Comet EXtreme range we invite you to visit our web site at www mgeups com or contact your MGE UPS SYSTEMS representative Safety Safety rules Safety of persons A UPS has its own internal power source the battery Consequently the output terminals may be energized even if the UPS is disconnected from the AC power source Dangerous voltage levels are present within the UPS It should be opened exclusively by qualified service personnel The UPS must be properly earthed The battery supplied with the UPS contains small amounts of toxic materials To avoid accidents th
10. cts on the power available at UPS output see the diagram below Authorized frequency range for transfer to bypass Tolerance for AC power Source frequency Maxi 51033212EN AA Page 21 3 Operation ECO mode tab 9 ECO mode is not possible unless it has first been authorized using the UPS Driver software e Personalizable function Default setting Options ECO mode authorization Disabled Enabled click to check not authorized The upper threshold max voltage is between the maximum authorized voltage for transfer to Authorized voltage range for 200 V to 240 V the bypass and the rated voltage operation in ECO mode see figure 3 for 230 V rated voltage The lower threshold min voltage is between the minimum authorized voltage for transfer to the bypass and the rated voltage Range for minimum authorized Range for maximum authorized voltage for operation in ECO mode voltage for operation in ECO mode Voltage in V Minimum authorized voltage Rated Maximum authorized voltage for transfer to the bypas voltage for transfer to the bypass Fig 3 3 6 Shutdown 1 Press button en return to the OFF position The connected equipment is no longer supplied with power 2 Set the battery circuit breaker s 2 to OFF J The battery is no longer recharged D AS Page 22 51033212EN AA 4 1 Troubleshooting If any of LEDs a
11. d 0 do not go ON or if LEDs 7 42 3 or flash there is a fault see section 4 1 3 3 Bargraph indications LEDs 11t044 provide three different indications T oda 1 Remaining backup time in percent in ON LINE mode 11 2 Percent load drawn by the protected equipment when button 15 is pressed 14 3 Operating faults flashing LED and beeps t Overload ZO E Il 12 UPS fault O E Battery fault l O id Excessive ambient temperature Page 18 51033212EN AA EEE 3 Operation 3 4 Failure of AC input power and operation on battery power AC input power is not available the battery steps in to supply the protected equipment Transfer to battery power The AC power source is outside tolerances LED Q9 is ON p p O q 5 the buzzer beeps three times i O NF E IN amp Threshold for the low battery shutdown warning P The low battery shutdown warning threshold can be set K O by the user with the UPS Driver software see section 3 5 ERO LED 0 flashes The buzzer beeps every three seconds e ir 0 2 There is very little remaining battery backup time 25 e Close all applications because UPS automatic shutdown is imminent End of backup time is The buzzer sounds continuously Press button 16 to turn the buzzer OFF aa T els As The equipment is no longer supplied w
12. e directives listed below must be observed Never operate the UPS if the ambient temperature and relative humidity are higher than the levels specified in the documentation Never burn the battery risk of explosion Do not attempt to open the battery the electrolyte is dangerous for the eyes and skin Comply with all applicable regulations for the disposal of the battery Product safety The UPSs connection to the AC power source must be protected by a circuit breaker that is easily accessible The UPS can be disconnected from the AC power source by opening the circuit breaker Never install the UPS near liquids or in an excessively damp environment Never let a liquid or foreign body penetrate inside the UPS Never block the ventilation grates on the front or back of the UPS Never expose the UPS to direct sunlight or a source of heat Special precautions The UPS connection instructions contained in this manual must be followed in the indicated order Check that the indications on the rating plate correspond to your AC power system and to the actual electrical consumption of all the equipment to be connected to the UPS If the UPS is positioned flat check that not more than five modules are stacked on top of each other If the UPS must be stored prior to installation storage must be in a dry place The admissible storage temperature range is 40 C to 50 C If the UPS remains de energized for a long per
13. es c M 21 By pass tab e ee 21 ECO mode TAD EEE EE 22 EA SDUtdOWD EE a eo OP OO ee 22 Maintenance 41 Troubleshooting N saat 23 4 2 Replacement of the electronic module nnnnnnnnnnnnnvnnnnnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 25 ENVIFOnMent 4 coccinea A t 26 Appendices 61 Glossary EI E R 27 PMMDDIC H 29 1 Presentation 1 1 Comet EXtreme range 4 5 and 6 kVA tower models Dimensions in mm H x Wx D 443 x 173 x 465 443 x 173 x 465 Electronic module Battery module Weight in kg S o E Electronic module 14 K Battery module 48 AAA EE BB ES EE Dimensions in mm HxWxD 177 4U x 483 x 462 Electronic module Battery module 177 AU x 483 x 462 Weight in kg Electronic module 18 Battery module 51 51033212EN AA Page 7 1 Presentation 9 and 12 kVA tower models Page 8 51033212EN AA Dimensions in mm HxWxD Electronic module 443 x 216 x 465 Battery module 443 x 173 x 465 Weight in kg Electronic module 22 Battery module 48 Dimensions in mm HxWxD Electronic module 221 5U x 483 x 462 Battery module
14. iod we recommend that you energize the UPS for a period of 24 hours at least once every month This charges the battery thus avoiding possible irreversible damage 51033212EN AA Page 3 Foreword Using this document Information may be found primarily by consulting the contents the index n et o e m 3 7 Important instructions that must always be followed Information advice help Visual indication Action AJ AJ Audio indication x In the illustrations on the following pages the symbols below are used O LED off LED on LED flashing Page 4 51033212EN AA Contents Presentation 11 Comet EXtremerange tsm 7 Wile BAK GO NE 9 jJucEUnuelculeeeemc 10 Installation 24 Unpacking and CHECKS nocet Uo nee duda Eo vini ee cerae monet 11 Tower and rack model 4 5 and 6 KVA amnuenrnnnnnnnrvnnnnnrrvnnnnnnvnnnnnnvrvnnnnevvnnnnenvvnnnnnevvnnnnenevnnnnenvvnr 11 Tower and rack model 9 and 12 KVA sssssssssssseeeeeeeeeee nennen nennen nnne nnns 12 2 2 Installation rack Version eirnoceuecieiie cL ciei de ELEC c ree dira cR se ua nace Le da Ease DR eaae roc arua de 13 2 3 Battery module connections rrrrnnnnnvennnnnnnnnvvnnnnnnnnnnnennrnnnnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnnnnnnn 14 2 4 Connection to the RS 232 communications port optional
15. ith power e ZN of lt 0 rJ Qe Sleep mode This operating mode may be personalized using the UPS Driver software see section 3 5 It saves battery power when no equipment is connected to the UPS The UPS automatically restarts when the AC power source returns to within tolerances Return of AC input power If in spite of the return of AC input power the UPS does not restart check that the automatic restart function activated by return of AC input power has not been disabled see section 3 5 51033212EN AA Page 19 3 Operation 3 5 Personalization Function Personalization parameters can be set and modified using the UPS Driver software installed on a computer that is connected to the UPS see section 2 3 Connection to the RS 232 communications port Check that the RS 232 cable 62 is correctly connected and that the battery circuit breaker is closed UPS Driver installation 1 Insert the UPS Driver diskette in the drive of an IBM compatible microcomputer 2 Select the disk drive A 3 Double click upsdriv exe Once UPS Driver has been installed UPS parameters can be modified in a window containing a number of tabs each presenting a set of parameters ON OFF conditions tab Personalizable function Default setting Automatic start Enabled Cold start battery power Enabled Forced shutdown Enabled Sleep mode Disabled UPS ON OFF via software
16. ment is supplied by the AC power source Reconnecting the connection module 1 Secure the connection module using the two screws 60 3 Reconnect the connection cable s to the battery module s 3 Switch the battery circuit breaker s Q to the ON position Check that UPS personalization settings still N correspond to the equipment to be supplied see section 3 5 4 Start the UPS by pressing button e 5 Check that LED is ON before turning the manual bypass switch T to the intermediate position If LED 18 is not ON do not switch to the N intermediate position and call the after sales support department 6 Turn the manual bypass switch O from the BYPASS position to the intermediate position and check that LED is ON 7 Turn the manual bypass switch 0 from the intermediate position to the NORMAL position The connected equipment is again protected by the UPS 51033212EN AA Page 25 5 Environment This product has been designed to respect the environment It does not contain CFCs or HCFCs It was manufactured in a factory certified ISO 14001 UPS recycling at the end of service life MGE UPS SYSTEMS undertakes to recycle by certified companies and in compliance with all applicable regulations all UPS products recovered at the end of their service life contact your branch office Packing UPS packing materials must be recycled in compliance with all applicable regulations Warning This product
17. o longer protected Follow the UPS replacement procedure see section 4 2 Call the after sales support department Page 24 51033212EN AA LED 13 flashes A battery fault was detected during the battery test Make sure that the battery circuit breaker s is closed If that is the case call the after sales support department because the battery is not OK 4 Maintenance 4 2 Replacement of the electronic module Before turning the switch see the manual ern a mn BY PASS Lo o eS n a at A BS O O Before turning the switch see the manual Disconnecting the connection module 1 Turn the manual bypass switch T from the NORMAL to the intermediate position 2 Check that LED 18 is ON before continuing to the BYPASS position If LED is not ON do not switch to the BYPASS N position and call the after sales support department 3 Turn the manual bypass switch 7 from the intermediate position to the BYPASS position The connected equipment is supplied by the AC power source via the manual bypass 4 Shut down the UPS by pressing button e return to the OFF position 5 Switch the battery circuit breaker s Qo to the OFF position 6 Remove the two fixing screws to free the connection module 7 Remove the connection cable s from the battery module s The UPS can be replaced The connected equip
18. ode sssssssseene 19 20 Software UPS Driver 11 12 18 20 22 Start up Automatic start rororrrrrrrnnnnnrrnorvorevnrrnrnnnnnnrr 20 T Temperature Excessive ambient temp 10 18 23 U UPS Driver aserrean iii 11 12 18 20 22 51033212EN AA Page 29 MGE UPS SYSTEMS Nothing 140 Avenue Jean Kuntzmann ZIRST Montbonnot St Martin 38334 ST ISMIER CEDEX FRANCE www mgeups com 51033212EN AA will stop you now MGE UPS SYSTEMS renun Publication MGE UPS SYSTEMS 01 2000
19. of the three wires depends on the UPS rating cable diameter cross sectional area mm of each wire mm flexible rigid EXtreme 4 5 to 6 kVA 15 to 25 5 4to 10 4to 16 EXtreme 9 to 12 kVA 15 to 25 5 10 10 to 16 1 Remove the terminal block cover 8 2 Remove the cable entry knockouts from the cover 3 Loosen the cable clamp 9 4 Insert the cable supplying the equipment and the power cable through the terminal block cover 8 Always connect the earthing wire first 5 Connect the three wires of the equipment cable to the output terminal block 9 6 Connect the three wires of the power cable to the input terminal block 10 7 Tighten the cable clamp 29 8 Refit and secure the terminal block cover 8 Earthing wires Page 16 51033212EN AA 3 1 Operating mode ON LINE mode ECO mode ZO eO sl Er da m e EEE 3 Operation This is the standard operating mode set by default in the factory It makes use of electronic double conversion of the input power Two possible cases LED is ON AC input power is available Power is drawn from the AC power source and supplied to the protected equipment via the UPS LED is ON AC input power is not available Power is drawn from the battery and supplied to the protected equipment The main advantage of this mode is that it reduces the c
20. onsumption of electrical power The protected equipment is supplied directly by the AC power source as long as it remains within the tolerances set by the user ECO mode is selected and tolerance levels are set using the UPS Driver software for UPS personalization see section 3 5 Zz P EGON TN O a O eO ERO NZ B or ZO ERO K2 lit AN Three possible cases The AC power source is within the set tolerances The protected equipment is supplied directly by the AC power source via the automatic bypass LED is ON The AC power source is not within the set tolerances The UPS automatically shifts to ON LINE mode LED is ON The AC power source is not available LED Q0 is ON The battery supplies power to the protected equipment 51033212EN AA Page 17 3 Operation 3 2 Start up The protected equipment connected to the UPS can be energized whether AC input power is available or not Prior to initial start up check the UPS voltage settings If the protected equipment voltage is other than 230 V 50 Hz the UPS settings must be modified using the UPS Driver software Qa see section 3 5 1 Set the battery circuit breaker s e to ON 2 Press the ON OFF button Q1 All connected equipment is energized The buzzer sounds LEDs 18 9 and go ON If LEDs 8 19 an
21. uusss 21 Rated frequency ssssssssssss 21 Rated voltage scission 21 PU MEE 19 B cler p 18 Battery Battery test oporra eet 21 End of backup time cce 19 Fall hire herois 10 18 Low battery shutdown warning 19 Recycling sausen 26 Transfer to battery power 19 rs m 4 10 18 19 By pass Automatic bypass ssessssssss 17 24 Manual bypass sssssee 9 25 C Communication sisisi 15 Connection Communications card seee 15 Connection modules seses 16 RS 232 communications port 15 E ECO MOJE rre etie 10 17 22 F Fault UPS Load E adn RR 10 Transfer to automatic bypass 24 L LEDs Lamp test adie dean 10 6 Annexes M Mode ECO mode rrrrrrrrrrvrrnrnrvrrnnnnnrrssrsevenen 10 17 22 ON LINE mode eem 10 17 O Overload inrer cte nenn 10 21 23 P Personalization rrrrrrnnrrrnnvnrrrnnnnnrnnorvvrnnnnnr 20 22 Battery EM eara 21 ECO MOUS icit siete a YR ERRORES Legs 22 ON OFF conditions s 20 Output esee EUR 21 R RRaCK rii eee nietesie tuse 7 8 11 12 13 S MI EEE E 3 Shutdown Forced shutdown errrnnnrrnrnnnnnrnnvnvnnnnrrnnvnnnnnr 20 UPS ON OFF via software 20 UPS shutdown eene 10 22 Sleep m
22. uzzer OFF operation on manual bypass operation in ECO mode operation in ON LINE mode operation on battery power ON OFF SSS eee 2 Installation 2 1 Unpacking and checks Comet EXtreme 4 5 and 6 kVA Electronic module 35 battery module KN E CCC E t i 3 22 RS 232 communications cable 95 documentation 63 Solution Pac CD ROM telescopic rails for mounting in 19 bay with mounting hardware UPS Driver diskette 27 cable for connection to battery module 51033212EN AA Page 11 2 Installation Comet EXtreme 9 and 12 kVA Electronic module 4 4 Battery module 4 4 22 RS 232 communications cable 95 documentation 3 Solution Pac CD ROM 26 telescopic rails for mounting in 19 bay with mounting hardware 4 UPS Driver diskette e cable for connection to battery module Page 12 51033212EN AA 2 Installation 2 2 Installation rack version Rack mounting diagram with rails The rails and the necessary mounting hardware are supplied with the UPS in the package 51033212EN AA Page 13 2 Installation 2 3 Battery module connections Comet EXtreme 4 5 and 6 kVA Check that the battery circuit breaker is OFF Connect cable 27 to the connectors 4 of the electronic and battery modules Comet EXtreme
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