Gamatronic Centric Series Installation Manual Download

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GAMATRONIC,

OLAR

DGE

IVISION

Centric Installation Guide, rel. 4.7

TANDARDS AND

ONVENTIONS

This user manual contains diagrams which include images of the

UPS’s display screen. Unless otherwise

indicated, the readings shown in the screen images are representational only, and are not intended to
match the readings on a specific system in a particular environment.

Operation and control of the

Centric

UPS is accomplished through a touch-sensitive LCD display screen.

In this manual, the terms "tap", "press", "choose", and "select" may be used interchangeably to indicate
selection of an option on a menu screen.

Electrical abbreviations in this document are according to

IEEE 280 Standard Letter Symbols for Quantities

Used in Electrical Science and Electrical Engineering

Summary of Contents for Centric Series

Page 1: ...GAMATRONIC 3 PHASE MODULAR UPS FOR THE 400 VAC GRID UPS SYSTEM Installation Guide for models 50 kW 200 kW 50 kVA model with internal battery 200 kVA model Release 4 7 April 2020 This manual is for products 101SBD6 ...

Page 2: ...n with a maintenance bypass switch is desired the maintenance bypass switch must be external to the UPSs The product described in this document may cause interference with radio communications if not installed and used according to the user guide and or installation guide Operation of the product in a residential area may cause harmful interference in which case the user will be required to correc...

Page 3: ...POWER MODULES 41 5 1 Insertion of power modules at system installation 42 5 2 Replacement of a module in an installed system 44 5 3 Addition of a module in an installed system 46 5 4 Removing a module from an installed system 49 6 PARALLEL OPERATION 52 6 1 Theory 52 6 1 1 Decentralized static switch method 52 6 1 2 Parallel communication 53 6 1 3 Current sharing 54 6 1 4 EPO and parallel operation...

Page 4: ...ion wizard 32 Figure 19 The alarms icon indicates alarm conditions 33 Figure 20 IP address configuration 34 Figure 21 Minor connector groupings on the Centric rear panel 36 Figure 22 Closer view of dry contact terminals in connector group 1 37 Figure 23 Close up of connector group 2 38 Figure 24 Pin numbers in D9 connectors 38 Figure 25 Connections for EPO switch and battery trip coil 39 Figure 58...

Page 5: ...trol panel 69 Figure 55 A UPS s bypass circuit 70 Figure 56 Timing variables when using a generator and an ATS 72 Figure 57 Example of an ATS control panel 73 LIST OF TABLES Table 1 Recommended clearances 15 Table 2 Maximum input currents 24 Table 3 Recommended circuit breaker switch ratings 25 Table 3 1 Icw Rated short time withstand current and I pk Rated Peak short circuit value 25 Table 4 Mini...

Page 6: ...e not intended to match the readings on a specific system in a particular environment Operation and control of the Centric UPS is accomplished through a touch sensitive LCD display screen In this manual the terms tap press choose and select may be used interchangeably to indicate selection of an option on a menu screen Electrical abbreviations in this document are according to IEEE 280 Standard Le...

Page 7: ... s Read this manual carefully before starting installation and operation of the UPS Review the safety precautions described below to avoid injury to users and damage to the equipment UPS must be installed in a restricted access location only All power connections must be completed by a licensed electrician who is experienced in wiring this type of equipment and who is familiar with the local elect...

Page 8: ...it as is practically possible If you remove a UPS module from the Centric while the module is operating wait five minutes before reinserting the module This allows the module s capacitors time to discharge FAST FUSES SEMICONDUCTOR FUSES must be used between the battery and the Centric and on the rectifier ac input line For example the Ferraz Shawmut A70QS fuse WARNING RISK OF LETHAL ELECTRIC SHOCK...

Page 9: ...e to the battery cabinet before the battery circuit breaker is turned OFF Do not turn ON the battery circuit breaker when the battery cabinet is disconnected from the UPS Do not install the UPS next to gas or electrical heaters A restricted location is recommended in order to prevent access by unauthorized personnel If you remove a UPS module from the Centric while the module is operating do not r...

Page 10: ...ght internal UPS modules 100 kVA holds up to four internal UPS modules 50 kVA holds up to two internal UPS modules Each UPS module has a maximum output capacity of 25 kVA 25 kW Each Centric unit also includes a system controller a static switch module an LCD control panel 200 kW model 100 kW model Figure 1 Major components of the Centric 200 and 100 kW models ...

Page 11: ... 7 11 Figure 2 Major components of the Centric 50 kW model WARNING FOR ALL UNITS WITH BUILT IN BATTERY BREAKER THERE MUST BE ADEQUATE CLEARANCE OF ACCESS IF THIS IS NOT POSSIBLE THE BATTERY BREAKER MUST BE UNINSTALLED AND REMOUNTED ON THE WALL ADJACENT TO THE SYSTEM ...

Page 12: ...______ 6___________ 7___________ 8___________ Technician Name Date Signature Operation Requirement Reference Visual Inspection Verify the physical integrity of the system No physical damage 3 2 1 Comments on visual inspection __________________________________________________ _______________________________________________________________________________ ___________________________________________...

Page 13: ...or for charging 3 2 4 5 Verify that the connection of the battery to the UPS is according to the diagram and instructions in section 3 2 4 5 FAST FUSES SEMICONDUCTOR FUSES must be used between the battery and the Centric For example the Bussmann FWH fuse Batteries are connected according to recommendations and with proper fuse values Verify that there is a switch or other means to easily and safel...

Page 14: ...livered is as ordered and that a system controller module was delivered 3 2 2 Site Preparation Physical Perform the following procedures before connecting any external cables to Centric 1 Ensure that the ambient temperature in the immediate vicinity of Centric complies with Gamatronic requirements Minimum maximum operating temperatures 10 C 40 C 14 F 104 F Recommended operating temperature between...

Page 15: ...r cable connections Sides No minimum clearance provided that the UPS is not placed next to heat emitting equipment or other electronic equipment If the UPS is placed next to heat emitting equipment or electronic equipment leave at least 20 cm free space between the UPS and the other equipment The object here is to avoid subjecting the UPS to additional heat and to protect the UPS from stray electr...

Page 16: ...that it is at least 385 V and 385 V 7 FAST FUSES SEMICONDUCTOR FUSES must be used between the battery and the Centric For example the Bussmann FWH fuse 3 2 4 Cabling 3 2 4 1 NEUTRAL LINE During both installation and operation of the Centric a neutral line must always be connected to the UPS This neutral line must be connected at all times while the UPS is working and should not be disconnected at ...

Page 17: ...c input and ac output cables to the Centric Refer to Figure 8 or Figure 9 and to Figure 4 and Figure 6 below The lower rear panel of the Centric must be removed for access to the main terminals To the electrical board to which the UPS is connected affix a sign or label with the following content WARNING There is a UPS attached to this electrical board The UPS s neutral line also serves as its grou...

Page 18: ...ation Guide rel 4 7 18 200 kW model 100 kW model 50 kW model RECOMMENDED TORQUE VALUES FOR MAIN AC AND DC TERMINAL CONNECTIONS 200 kW model 25 30 N m 100 kW model 6 12 N m 50 kW model 1 9 N m Figure 4 Main power terminals on the rear of the Centric ...

Page 19: ...l 4 7 19 Figure 5 Close up of the main terminals 200 kW model Recommended torque value for main ac and dc terminal connections 25 30 N m Figure 6 Close up of the main terminals 100 kW model Recommended torque value for main ac and dc terminal connections 6 12 N m ...

Page 20: ...GAMATRONIC A SOLAREDGE DIVISION Centric Installation Guide rel 4 7 20 Figure 7 Close up of the main terminals 50 kW model Recommended torque value for main ac and dc terminal connections 1 9 N m ...

Page 21: ...he Centric and the electrical panel Refer to Figure 8 or Figure 9 for system connections and Table 2 and Table 3 for circuit breaker recommendations See Chapter 8 for a discussion of the issue of circuit breaker selectivity Connection of the Centric UPS to the electrical panels must be performed only by a licensed electrician experienced with similar systems Warning When two separate input lines a...

Page 22: ...GAMATRONIC A SOLAREDGE DIVISION Centric Installation Guide rel 4 7 22 Figure 8 Recommended standard system connections For recommended circuit breaker ratings see Table 2 page 24 and Table 3 page 25 ...

Page 23: ... A SOLAREDGE DIVISION Centric Installation Guide rel 4 7 23 Figure 9 Recommended system connections with input isolation transformer For recommended circuit breaker ratings see Table 2 page 24 and Table 3 page 25 ...

Page 24: ...GAMATRONIC A SOLAREDGE DIVISION Centric Installation Guide rel 4 7 24 Table 2 Maximum input currents ...

Page 25: ...r than the above recommendations the local codes take priority Table 4 1 Icw Rated short time withstand current and I pk Rated Peak short circuit value UPS MODEL I cw A I pk A Centric 50k 575 1700 Centric 100k 1000 2500 Centric 200k 1800 3200 IMPORTANT Protective device must be configured to open within 1 grid cycle upon I sc 10 I n 4 grid cycles upon I sc 5 I n ...

Page 26: ...NIC A SOLAREDGE DIVISION Centric Installation Guide rel 4 7 26 3 2 4 4 ATTACH THE CABLE STRESS RELIEVER Figure 10 Attaching the cable stress reliever Figure 11 Attaching the cable stress reliever another view ...

Page 27: ...f the UPS 3 Measure the dc voltage at the main terminals of the battery cabinet Verify that you obtain values of at least 360 Vdc red and at least 360 black with reference to N blue 4 Connect each battery cabinet to a circuit breaker or switch with fuses according to Figure 12 The recommended fuse value for two battery cabinets is shown in Figure 12 according to the output capacity of the UPS The ...

Page 28: ...REDGE DIVISION Centric Installation Guide rel 4 7 28 Figure 12 Connecting the battery cabinet to the UPS FAST FUSES SEMICONDUCTOR FUSES must be used between the battery and the Centric For example the Bussmann FWH fuse ...

Page 29: ...tach the LCD display screen to the top front of the Centric See section 7 on page 69 for instructions on how to attach the LCD display screen 3 Switch ON the external bypass input circuit breaker 4 Switch ON the external rectifier input circuit breaker 5 Switch ON the Centric LCD panel 6 A series of screens are displayed on the control panel to enable you to define the system s initial configurati...

Page 30: ...Centric with required basic configuration information to enable initial operation of the Centric The initial configuration process is described here Figure 13 Initial configuration wizard Start screen 1 On the Start screen press Next 2 The password screen is displayed Enter the password provided by your distributor or sales agent and press OK Without such a password you cannot continue Figure 14 I...

Page 31: ...e 2 Then press Next Figure 15 Initial configure wizard number of battery sets 4 Indicate the capacity of the connected batteries in ampere hours Ah then press Next This capacity figure is used by the UPS when in battery mode to calculate the amount of backup time remaining If you are not sure of your batteries Ah capacity look at one of the batteries in the battery cabinet s The Ah rating is usual...

Page 32: ... Installation Guide rel 4 7 32 5 Scroll through the list to find your time zone select the time zone and then press Next Figure 17 Initial configure wizard set time zone 6 Press Finish to exit the wizard Figure 18 Finish configuration wizard ...

Page 33: ...s the alarm symbol to display the potential problems Refer to the troubleshooting section of this document to determine the proper response to the alarm indications Figure 19 The alarms icon indicates alarm conditions 7 Perform a 5 minute battery test to verify that the Centric is ready and able to operate in battery mode when needed Verify that the ac output circuit breakers on the electrical boa...

Page 34: ... address automatically your network must support DHCP 1 From the Main Menu select Setup Connectivity Network Configuration 2 Press the button labeled Obtain an IP address automatically The Centric software obtains an IP address and then reboots itself To assign an IP address manually 3 Press the button labeled Use static IP address The IP definition screen is displayed Figure 20 IP address configu...

Page 35: ...troller This test is designed to verify that the System Controller is properly configured for communication and that the Web server built into the System Controller is functioning properly If you do not intend to use remote monitoring of the UPS at this time you can skip this test The following procedure is given in general terms the specifics will vary depending on the operating system of the com...

Page 36: ...s on the rear panel of the Centric These miscellaneous connectors are three locations which we will refer to as connector groups 1 2 and 3 These connector groups are shown in Figure 21 and close up views of the connectors are shown further on in the text where relevant 200 kW model 100 kW model 50 kW model Figure 21 Minor connector groupings on the Centric rear panel ...

Page 37: ...ernal relay changes The output dry contacts enable the Centric to trigger an external circuit in response to a system alarm The connections for the input and output dry contacts are located on the rear of the UPS on the external surface of the UPS in the connector groups labelled 1 and 2 in Figure 22 The dry contacts can be set up and configured at any time Refer to the Centric User Guide for deta...

Page 38: ...ble 7 D9 pin assignments in connector group 2 PIN ALARM CONNECTOR RS232 CONNECTOR RS485 CONNECTOR 1 Input dry contact 5 AUX5 RXD Receive data RTX 2 Reserved TXD Transmit data not used 3 Line failure default can be reassigned not used RTX 4 COMMON GND not used 5 Low battery default can be reassigned not used not used 6 9 Remote panel not used not used ...

Page 39: ...itch must be an N O type rated for at least 24 Vdc 1 A Be sure to perform a continuity test on the EPO switch before connecting it to the UPS 4 1 2 1 BATTERY CIRCUIT BREAKER TRIPCOIL The Centric includes a dry contact that closes when the EPO switch has been activated This dry contact can be connected to an optional trip coil on the battery box circuit breaker This will cause the battery circuit b...

Page 40: ...rom an external source The following diagram shows how to wire UPS to enable the LVD battery protector Wire should be 12AWG or of a cross section area 2 5 mm 2 is recommended The system controller must also be configured to supply the configurable trip voltage 1 Configure Input Dry Contact 3 to a Battery circuit breaker is off b Normally closed c Enabled mark with check mark d Press confirm 2 Conf...

Page 41: ...an installed system Removal of a module from an installed system Instructions for each type of operation are given below Generally speaking if there are fewer than the maximum number of power modules in your system 8 for the 200 kW system 4 for the 100 kW system 2 for the 50 kW system the modules should be inserted in the lower shelves and any empty shelves should be on top This is for visual simp...

Page 42: ...f the LCD screen is lit green when the system is running If the input breakers are off go to the next step 2 Install the modules starting in the lowest available shelf and work your way upwards through the available shelves For each module Push the module all the way into the module shelf Push the module firmly to ensure proper seating of the module s rear connectors Fasten the module to the UPS f...

Page 43: ...GAMATRONIC A SOLAREDGE DIVISION Centric Installation Guide rel 4 7 43 200 kW model 100 kW model 50 kW model Figure 27 Location of the UPS modules in the 200 100 and 100 kW models ...

Page 44: ...tion Turn on off Modules off 3 On the screen choose the module to be replaced The modules are numbered from bottom to top The outline of the module you choose becomes highlighted Figure 28 Turning off a module 200 kVA system 4 Press the Complete Shutdown button 5 To verify that the module has been shut down navigate to the module status screen Main screen Status Modules press on the icon of the mo...

Page 45: ...the Nominals button near the bottom of the screen and verify that the values for output voltage output frequency and frequency range match the system nominal settings 10 Navigate to Operation Turn on off Modules on Select the module to be switched ON and press Confirm You may be prompted for the system password 11 To verify that the module is operating normally navigate to the module status screen...

Page 46: ... to the new module If there are no related alarms you have successfully replaced the module You can now resume normal use of the UPS 5 3 Addition of a module in an installed system The LCD screen images in this section are from a 200 kW system and show eight modules The screen for a 100 kW system shows four modules A 50 kW system will show two modules To add an additional module to a power locked ...

Page 47: ... of modules and how many of them if any are intended to provide redundancy On the LCD control panel navigate to Setup System Number of modules Increase the total number of modules as required and indicate how many of the modules are intended to provide redundancy The Centric User Guide provides more information on redundancy A password is required to perform this function If you do not have the re...

Page 48: ... of the screen and verify that the values for output voltage output frequency and frequency range match the system nominal settings 8 If the module was perviously shut down navigate to Operation Turn on off Modules on Select the replacement module and press Confirm You may be prompted for the system password 9 To verify that the new module is operating normally navigate to the module status screen...

Page 49: ...and see if any of them are related to the new module If there are no related alarms you have successfully replaced the module You can now resume normal use of the UPS 5 4 Removing a module from an installed system The LCD screen images in this section are from a 200 kW system and show eight modules The screen for a 100 kW system shows four modules A 50 kW system will show two modules To remove a m...

Page 50: ...modules are numbered from bottom to top The outline of the module you choose becomes highlighted Figure 38 Turning off a module 5 Press the Complete Shutdown button 6 To verify that the module has been shut down navigate to the module status screen Main screen Status Modules press on the icon of the module you just shut down and verify that the status is OFF for these five items PFC Inverter Dc re...

Page 51: ...ft side one on the right side of the front panel 9 Slide the power module out of the shelf and place it down on the table you reserved for it 10 Navigate to the main menu screen If the yellow triangular alarm indicator is visible check the alarms and see if any of them are related to the removal of the module If there are no related alarms the module has been successfully removed from the system Y...

Page 52: ...cess This is transparent to the system operator 6 1 1 Decentralized static switch method Every Centric UPS is equipped with a static switch to ensure that the UPS will continue to supply power to the load from the mains or from a secondary ac input source in the event of a problem with the inverter or an overload of the UPS Thus the static switch performs a very important function Figure 40 The st...

Page 53: ...end Parallel communication keeps the parallel units synchronized with each nother and is used to pass commands and status information between units Each Centric UPS has two D 15 parallel communication connection terminals Figure 41shows how to connect the parallel communication terminals for parallel operation of two and three Centric units Be aware that when connecting one UPS to the other it doe...

Page 54: ...als causes current sharing to be take place between all the modules of both systems together When three or more Centric units are operated in parallel their current sharing terminals should be connected together as shown in Figure 42 for example Connect the current sharing terminals on UPS X to those on UPS Y AND Connect the current sharing terminals on UPS Y to those on UPS Z The parallel cable k...

Page 55: ...GAMATRONIC A SOLAREDGE DIVISION Centric Installation Guide rel 4 7 55 Figure 44 Conceptual summary of special cabling for parallel operation ...

Page 56: ... operation An EPO switch can also be used if you intend to operate multiple Centric units in parallel An external n pole N O EPO switch may be connected according to the connection schematic EPO disconnection of the parallel units MUST BE SIMULTANEOUS EPO wiring and switch rating must be 5 A 230 Vac 6 1 5 Manual bypass and parallel operation A manual bypass switch can also be used if you intend to...

Page 57: ...red For parallel configurations of two or more Centric UPSs the following important information applies The sum of the length of the bypass input and output cables must be the same on all of the UPSs and must be at least 10 meters long The number of power modules in each UPS must be the same 1 module If one or more of the UPSs gets switched off whether manually or automatically the output circuit ...

Page 58: ...es for 2 parallel units 101 CN SKD P Set of cables for 3 parallel units 101 CN SKD P 1 Set of cables for 4 parallel units 101 CN SKD P 2 The supplied cables allow for a maximum of about 5 meters between UPSs Keep this in mind when positioning the UPSs 2 In a parallel configuration the length of the bypass input cable must be the same on all of the UPSs and the bypass input cables must be at least ...

Page 59: ...entric showing the PC3001 circuit board Figure 48 Closeup of the master jumper 4 Connect the UPSs in a ring configuration via the two 15 pin parallel communication terminals on each UPS Use the supplied cables See Figure 21 Figure 25 Figure 49 Parallel communication cable with 15 pin connectors ...

Page 60: ...he connection diagram 6 Turn on one of the systems This system will become the master system Wait until the automatic startup procedure is complete you will see the main menu screen It should read UPS ON Normal mode and there should be no alarms present If there are active alarms resolve any problems before continuing Figure 50 The main menu screen ...

Page 61: ...up and verify that each system is in Normal mode and has no active alarms 9 Put the slave systems in multisystem mode Main menu Setup System Multisystem mode 10 For each slave system compare the output voltage of each phase to that of the master system Any voltage difference should be no greater than 2 Vac If the difference in output voltage is greater than 2 V for any phase navigate to the Main M...

Page 62: ...e slave systems have output voltages within 2 V of the master system put each system in bypass mode Main menu Operation Transfer Transfer load to bypass 12 For each slave system compare the output voltage of each phase to that of the master system as you did above except that now the systems are in bypass mode Any voltage difference should be no greater than 2 Vac 13 Return all of the systems to b...

Page 63: ...GAMATRONIC A SOLAREDGE DIVISION Centric Installation Guide rel 4 7 63 Figure 52 Connection diagram for two parallel Centric units ...

Page 64: ...GAMATRONIC A SOLAREDGE DIVISION Centric Installation Guide rel 4 7 64 Figure 53 Connection diagram for three parallel Centric units ...

Page 65: ...UPS This enables a technician after turning off ALL the input output and battery circuit breakers to work safely on the UPS The technician can perform full maintenance procedures load testing and even replace the unit without any interruption of power to the load If the remaining units are not able to support the additional load level or the units are running with a common battery the entire paral...

Page 66: ... UPS from the Forced Bypass cable 8 Disconnect the UPS from the parallel cables Table 9 CB settings for safe removal of the unit Battery box input on battery box Rectifier ac input C B 2 Bypass ac input C B 3 UPS ac output C B 5 OFF OFF OFF OFF 9 Disconnect the UPS from all wiring 10 Move the new UPS into place rewire the new system according to figure 55 11 Attach the EPO cable to the new system ...

Page 67: ... will have to be corrected before the system can be put in maintenance bypass DO NOT CLOSE CB 4 OR 6 THIS WILL CAUSE A SHORT BETWEEN PHASES 2 Verify that all three phases of the bypass input voltages are present and the inverter and bypass are synchronized on the system controller status screen If they are not the UPS cannot transfer to bypass mode 3 On the system controller LCD screen press opera...

Page 68: ...cuit breaker 4 Switch ON the UPS Operation system on Wait for the system to automatically transfer to inverter once all the power modules are operational 5 On the system controller LCD screen press operations transfer load to bypass 6 Verify that the bypass indicator is lit on the controller 7 Switch ON the AC OUTPUT circuit breaker 8 Switch OFF the MAINTENANCE BYPASS circuit breaker 9 On the syst...

Page 69: ...ront panel See Figure 54 Figure 54 Location of fallback push button control panel The push button panel provides only the most basic functionality 1 When the Centric is OFF pressing the Enable button turns the Centric ON The button is recessed to prevent accidental use 2 The Inv Byp button toggles the load from bypass to the inverter and from the inverter to bypass To reiterate the fall back contr...

Page 70: ...l tripping and magnetic tripping Circuit breakers can have one or both of these tripping characteristics Magnetic tripping is activated immediately when the current though the circuit breaker exceeds a specific limit Magnetic tripping can include a deliberate delay depending on the design of the specific circuit breaker chosen Thermal tripping responds with a delay to lower level longer term curre...

Page 71: ... use a time delay circuit breaker on the bypass input line recommended rating of the breaker is approximately six times the maximum bypass input current When using a circuit breaker with delayed magnetic protection the ability of the cables and the rest of the infrastructure to withstand a short circuit must be taken in account Where the local electrical code is more stringent than the above recom...

Page 72: ... Automatic Transfer Switch ATS Because these two sources are not usually synchronized switching between them requires an interval of at least 10 seconds Figure 57 illustrates the timing factors involved when using an ATS For proper functioning of the UPS the values used for T3 and T4 must be greater than 10 seconds The optimum delay times can be revealed with a little testing and may vary from sit...

Page 73: ... the reserve source The timing variables T1 through T5 are described in Figure 57 The knob at the bottom of the control panel controls the actions of the ATS The ATS can be set to use the normal source The ATS can be set to use the reserve source The ATS can be set to automatic mode which will use the normal source and will automatically switch to the reserve source in the event of a failure of th...

Page 74: ...tually convenient time for a technician to perform the inspection It is important that the UPS owner continue to arrange regular preventive maintenance inspections even after the expiration of the initial warranty period Gamatronic bears no liability for damage caused to the UPS due to improper maintenance by third parties in particular after the expiration of the warranty or service agreement It ...

Page 75: ..._______________________________ 3 Environmental Inspection Environmental temperature ________ C Ventilation OK Not OK Air conditioning Yes No Comments _________________________________________________________________________________ 4 Display Panels LCD Display OK Not OK Comments ____________________________ LEDs OK Not OK Comments ____________________________ 5 Voltages Verify that displayed dc v...

Page 76: ...d Measured value ____ Vac Measure the voltage between Neutral and Ground at the bypass input The value should be no greater than 2 Vac Use a calibrated voltmeter to measure the rectifier input voltages Record the readings in the table below Compare your readings with the console display of the rectifier input voltage If the readings differ the UPS s input voltage measurement may require calibratio...

Page 77: ... HAZARDOUS WASTE CENTER Use a power resistor of 0 5 Ω 300 W rating recommended for the load to check the voltage drop across the terminals of each battery The voltage measured across the resistor should be no less than 10 Vdc for any battery Replace any batteries that give a reading less than 10 Vdc BATTERY STRING 1 BATTERY STRING 2 Batt no Good Bad Batt no Good Bad Batt no Good Bad Batt no Good B...

Page 78: ...ystem The initial warrantee period can be extended by a written service agreement between Gamatronic and the customer Without a written agreement Gamatronic is under no obligation to provide service after expiration of the initial warrantee period Gamatronic will not be responsible for maintenance or changes to the UPS that are performed by an agent without written authorization from Gamatronic So...

Page 79: ...els flipped top to bottom and left to right Release 0 3 2013 11 30 1 Added first draft of instructions for setting up parallel UPS configuration 2 Replaced connection diagrams with latest versions and added tables for maximum input currents and recommended CB ratings 3 Various and numerous smaller updates Release 0 4 2013 12 05 1 Updated system specs mainly the dimensions and weights Module weight...

Page 80: ...ecifications page were added the weight and dimensions of the battery box for the 50 kW system Release 1 7 September 2014 1 On page 38 in item 4 changed two three or more to two three or four 2 On page 39 in item 5 added Figure 24 to the list of figures Release 1 8 October 2014 1 Improved some wording in the Installation Checklist 2 As per J Goren modified the technical specifications so that the ...

Page 81: ...t breaker Release 3 1 2017 05 07 1 In section 4 3 4 3 Connecting the Centric to the electrical board added legal disclaimer saying that the connection diagrams are recommendations that may be subject to change to bring them into compliance with local and national codes 2 In section 9 2 added disclaimer that parallel installation plans must be approved by Gamatronic and their execution must be witn...

Page 82: ...On page ii a warning was added stating that an internal maintenance bypass switch is incompatible with this UPS in a parallel configuration If a parallel configuration is required the maintenance bypass switch must be external to the UPSs 2019 08 4 doc vsn 4 0 1 Full document review parallel system procedure 2019 12 9 doc vsn 4 2 2020 01 01 doc vsn 4 3 1 Maintenance bypass warnings 2 New spec s 20...

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