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UPS for 208 Vac Grid, B120US Installation Guide, doc. rel. 3.0

83

7.

Procedure: Maintenance Bypass Mode

In maintenance Bypass mode, the UPS does not to supply power to the load and the UPS is
isolated from the mains power. 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. This mode of operation is also commonly referred to as "wrap around
maintenance bypass".

Verify 0V across ALL terminals before disconnecting the system.

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Содержание Gamatronic B120US

Страница 1: ...GAMATRONIC THREE PHASE MODULAR UPS FOR THE 208V GRID B120US INSTALLATION GUIDE Revision 3 0 January 2020 Doc 2MUM B120I This installation guide is for product 101SW466 ...

Страница 2: ...ii UPS for 208 Vac Grid B120US Installation Guide doc rel 3 0 Remember to register your product at http www gamatronic com product warranty in order to activate your warranty ...

Страница 3: ...specific system in any particular environment Operation and control of the UPS is accomplished through a touch sensitive LCD display screen In this manual when explaining how to navigate the control software via the touch sensitive screen the terms tap press choose and select may be used interchangeably to indicate selection of a screen option Most of the electrical abbreviations in this document ...

Страница 4: ... Initial Configuration 35 3 3 6 1 System Startup Wizard 35 3 3 6 2 Continuing first time startup process 40 3 3 6 3 Assigning IP Address to the UPS 48 3 4 TESTING 50 3 4 1 Test Self loading PQ mode 50 3 4 2 Test Under load 53 3 4 3 Test Battery and blackout mode 54 3 4 4 Test ATS 54 3 4 5 Test ECO Mode 56 3 4 6 Test IP Communication with Controller 59 4 AUXILIARY CONNECTIONS 61 4 1 INPUT AND OUTPU...

Страница 5: ...SS MODE 83 7 1 CIRCUIT BREAKER LAYOUT 84 7 2 TRANSFERRING THE UPS TO MAINTENANCE BYPASS MODE FROM NORMAL MODE 84 7 3 TRANSFERRING THE UPS BACK TO NORMAL MODE FROM MAINTENANCE BYPASS MODE 87 8 USING THE UPS WITH A GENERATOR 89 8 1 THE AUTOMATIC TRANSFER SWITCH ATS 89 9 SERVICE AND REPAIRS 91 ...

Страница 6: ...ME ZONE 38 FIGURE 18 EXIT CONFIGURATION WIZARD 39 FIGURE 19 FLAT CABLES 40 FIGURE 20 STATIC SWITCH 40 FIGURE 21 CONFIRM DISCONNECTING THE LOAD 43 FIGURE 22 CONFIRM SWITCH ON ALL MODULES 43 FIGURE 23 THE ALARMS ICON INDICATES ALARM CONDITIONS 44 FIGURE 24 NEXT SCHEDULED TEST SCREEN 44 FIGURE 25 BATTERY TEST IN PROGRESS SCREEN 45 FIGURE 25 CONFIRM TRANSFER LOAD TO BYPASS 45 FIGURE 26 CONFIRM TRANSFE...

Страница 7: ... FIGURE 53 DECENTRALIZED DC PARALLEL COMMUNICATION CABLE 76 FIGURE 68 THE SYSTEM MENU SCREEN 77 FIGURE 69 THE CROWN ICON INDICATES THE MASTER POWER MODULE 78 FIGURE 70 AC OUTPUT VOLTAGE DISPLAY FOR A SINGLE MODULE 79 FIGURE 71 CONNECTION DIAGRAM FOR 2 PARALLEL UNITS 80 FIGURE 72 CONNECTION DIAGRAM FOR 4 UNITS IN PARALLEL 81 FIGURE 73 ELECTRICAL SETUP 84 FIGURE 60 UPS ON NORMAL MODE 85 FIGURE 61 TR...

Страница 8: ... TABLE 6 BATTERY LIFETIME VS ENVIRONMENTAL TEMP ILLUSTRATIVE AS PER EUROBAT 34 TABLE 7 KEY TO FIGURE 43 62 TABLE 8 DESCRIPTION OF CONNECTOR GROUP 2 KEY TO FIGURE 44 63 TABLE 9 CABLE SETS FOR PARALLEL COMMUNICATION BETWEEN UPSS 75 TABLE 10 RATING OF CB12 FOR MAINTENANCE BYPASS OPTION 82 TABLE 11 NORMAL MODE OPERATING POSITION OF THE CIRCUIT BREAKERS 85 TABLE 12 POSITION OF THE CBS IN MAINTENANCE BY...

Страница 9: ...mage 2 Inspect the ShockWatch and TiltWatch devices which are adhered to the outside of the wooden packing crate Verify that their indicators are not red A red indicator is a sign of rough handling ShockWatch or tip over TiltWatch Notify the carrier and Gamatronic Support immediately if rough handling of the UPS is suspected or if any damage is found or suspected 3 Retain the shipping crate and pa...

Страница 10: ...age was subject to shock or tip over 4 Using a forklift move the shipping crate close to the place in which the UPS will be installed 5 Cut and remove any straps on the shipping crate 6 Stand on a secure ladder and use an electric screwdriver to remove the screws that are holding the roof of the shipping crate in place Then remove the roof ...

Страница 11: ...hat are holding the walls and support beams of the crate in place Then carefully remove the walls themselves leaving the UPS standing on its wooden shipping pallet Figure 4 Remove the walls of the crate 8 Cut and remove any straps that are securing UPS to the shipping pallet 9 Remove the plastic wrapping and all other packaging material from the UPS ...

Страница 12: ...r 208 Vac Grid B120US Installation Guide doc rel 3 0 Be careful to avoid scratching the finish of the Modular UPS 10 Lift the UPS from the shipping pallet and move it to the location where it will be installed ...

Страница 13: ...equipment injury to personnel or even death Ensure all power is disconnected before performing installation or maintenance See Table 3 and Figure 7 for recommended clearances The UPS must be well grounded to the building s grounding system with a conductor that has a current carrying capacity that matches the rating of the UPS according to local codes Battery installation battery maintenance and b...

Страница 14: ...be used between the battery and the UPS for example the Ferraz Shawmut A70QS fuse WARNING RISK OF LETHAL ELECTRIC SHOCK WARNING HIGH TOUCH CURRENT EARTH CONNECTION ESSENTIAL BEFORE CONNECTING POWER SUPPLY WARNING RISK OF LETHAL ELECTRIC SHOCK The battery cabinet contains a series of batteries that provides high voltage and energy in the UPS body even when the UPS is not connected to the ac input T...

Страница 15: ... ALL the battery circuit and AC circuit breakers are 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 power module from the UPS while the module is operating do not reinsert the ...

Страница 16: ...oc rel 3 0 3 System Structure and Installation The UPS is composed of Up to 6 power modules each providing 20 kVA 18 kW Static switch module System controller Maximum output capacity of the UPS is 120 kVA 108 kW Figure 5 Major UPS components front view ...

Страница 17: ...ctor group 1 E Dry contacts and communication connections Connector group 2 F Main ac and dc connections G BYPASS INPUT terminals L1 L2 L3 reading from back to front H AC INPUT terminals L1 L2 L3 reading from back to front I AC OUTPUT terminal connections L1 L2 L3 reading from back to front J BATTERY connections positive midpoint neutral negative reading from back to front N Neutral bus bar same a...

Страница 18: ...10 UPS for 208 Vac Grid B120US Installation Guide doc rel 3 0 Figure 6 Main terminals viewed from the UPS rear ...

Страница 19: ...otective earth ground bus bar 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 ELECTRICAL CODES AND REGULATIONS IMPROPER WIRING MAY CAUSE INJURY TO PERSONNEL AND OR DAMAGE TO THE EQUIPMENT IN THE EVENT THAT THE UPS HAS BEEN DISCONNECTED FROM THE AC MAINS FOR FOUR MONTHS OR LONGER FOLLOWING ITS D...

Страница 20: ...yed on the status screen is the Phase to Neutral voltage The Neutral line MUST be connected to the UPS on the input and output stages of the UPS The UPS will support phase to phase loads and phase to Neutral loads The Neutral line must always remain connected when the UPS is operating All input output and dc cables must be armored and the armored layer must be connected to the UPS ground connectio...

Страница 21: ...s complete e mail it to your vendor and to Gamatronic Support gamatronic com INSTALLATION CHECKLIST FOR THE GAMATRONIC MODULAR UPS Customer Address Site Phone E mail Serial numbers System _________________Static Switch ____________________ Modules 1___________ 2___________ 3___________4___________ 5___________ 6___________ Technician Name Date Signature Activity Requirement Reference Visual Inspec...

Страница 22: ...and access 3 3 2 8 Check for adequate clearances easy access See Figure 8 Recommended clearances around the UPS 3 3 2 Comments on site preparation physical __________________________________________ _______________________________________________________________________________ Site Preparation Electrical 9 Before wiring the system verify that all possible voltage sources are disconnected and the ...

Страница 23: ...Ferraz Shawmut A70QS fuse 18 Verify that there is a switch or other means to easily and safely disconnect the battery cabinet from the UPS in the event of an emergency An Emergency Power Off switch EPO can be configured to include a 48V trip for the battery disconnection Connector P19 is used to trigger the battery trip coil in concert with an EPO switch 19 If you are using more than one battery s...

Страница 24: ...using multiple battery sets add the Ah value of the of sets 24 Enter your local time zone 25 Press the Finish button The controller restarts with the new configuration 26 From the Main Screen choose Profile and verify that the system is configured as per your requirements or with acceptable default values Verify time and date are correct The system configuration matches your requirements Comments ...

Страница 25: ... and select only this module and turn it on main operation on off modules on 5 Once fully operational fully shut it down and insert the next power module 6 Repeat this process for each additional power module first time installation 7 After each module has been individually powered up and shutdown preform a complete shutdown of the system main operation on off system off 8 Turn off all input circu...

Страница 26: ...hould be no greater than 2 Vac OK Not OK record value ____________ V 33 Go to Main Status STSW Detail1 Verify that Bypass phase sequence field says Correct 34 For each BYPASS phase use the mesurments taken in 30 32 and use the following formula to compute the acceptable phase to ground voltage range Voltage between L and N voltage between N and Gnd voltage between L and G If the voltage difference...

Страница 27: ...easure the voltage difference between the bypass line and the ac output line L1 L1 L2 L2 L3 L3 The difference should not exceed 60 V OK Not OK record phase and value ____________ V 43 Manually transfer the load to bypass then to inverter and then back to bypass again OK Not OK 44 If the output is not with in the acceptable tolarance preform an ac output adjust and correct the output volatge 45 Tur...

Страница 28: ...tery mode test Verify that the system is running in normal mode the output is supplied from the inverter then disconnect AC input and see that inverters remain ON and output of the system is on inverter Return AC input 52 ATS test Verify the ATS is set to a 10 second change over time then transfer to secondary source i e generator or seperate feed and back System must stay on inverter 53 ECO mode ...

Страница 29: ...maximum model configuration capacity 3 3 1 Visual Inspection Perform the inspection described here immediately after unpacking the UPS To perform the visual inspection procedure 1 Inspect the UPS from all angles and ensure that there is no visible damage to any part of the cabinet the module housings or other coverings 2 Verify that the number of modules delivered is as ordered and that a system c...

Страница 30: ...tion or dampness at the installation site 3 Ensure that sufficient airflow or forced ventilation is present at the location of the unit and battery cabinets 4 Verify that the foundation and access routes are adequate for the dimensions and weight of the UPS and battery cabinets 5 Ensure that there are adequate clearances to allow comfortable access to battery cabinets and electrical panels Recomme...

Страница 31: ...UPS for 208 Vac Grid B120US Installation Guide doc rel 3 0 23 Figure 7 Dimensions of the Gamatronic UPS ...

Страница 32: ...d the other equipment The object here is to avoid subjecting the UPS to additional heat and to protect the UPS from stray electronic signals Figure 8 Recommended clearances around the UPS 3 3 3 Electrical Site Preparation Perform the following procedures before connecting any external cables to the UPS To perform electrical site preparation 1 Read Chapter 5 Circuit Breaker Selectivity in this Inst...

Страница 33: ...idpoint and between the minus side and battery Midpoint Verify that the readings you get are at least 192 V and 192 V about 8 below nominal battery voltage 7 FAST FUSES SEMICONDUCTOR FUSES must be used between the battery and the Gamatronic UPS For example the Ferraz Shawmut A70QS fuse F1 F2 F3 and F4 in Figure 12 and Figure 13 Be sure to verify proper phase order 8 For initial startup to take pla...

Страница 34: ...nnect the neutral line Warning If you have a four pole mains to generator switching system you are in danger of having the neutral line disconnected when the four pole switch is operated This can result in the problems described above To avoid these problems it is strongly recommended that if you use a four pole mains to generator switching system you install an isolation transformer that constant...

Страница 35: ...UPS for 208 Vac Grid B120US Installation Guide doc rel 3 0 27 Figure 9 Recommended system connections Note For recommended circuit breaker and fuse ratings see Table 4 ...

Страница 36: ...28 UPS for 208 Vac Grid B120US Installation Guide doc rel 3 0 Figure 10 Recommended connections with input isolation transformer Note For recommended circuit breaker and fuse ratings see Table 4 ...

Страница 37: ...on the B120US can be obtained by simply opening the back door of the UPS To the electrical panel to which the UPS is connected affix a sign or label with the following warning WARNING There is a UPS attached to this electrical panel To avoid electric shock DO NOT DISCONNECT THE UPS s NEUTRAL LINE WHEN THE UPS IS OPERATING ...

Страница 38: ... experienced with similar systems Warning If two separate input lines are used for rectifier and bypass input as in Figure 9 and Figure 10 the Neutral line must be shared following warning WARNING The recommended cable and breaker sizes are based on optimal installation conditions Local code must be followed to coincide with the site ambient temperatures wire insulation type conductor material len...

Страница 39: ... the battery manufacturer specifications To assemble and connect external batteries A battery string or battery set is the basic number of batteries required to provide standard backup capabilities For the UPS this is 32 x 12 V batteries A battery string may be housed in one or more battery cabinets For extended backup time multiple battery sets can be attached to the UPS 1 Ideally the external ba...

Страница 40: ...dc pole 5 Connect the battery set to UPS s positive battery bus bar negative battery bus bar and Neutral bus bar Refer to Figure 12 6 If you are using lithium ion batteries contact Gamatronic support for configuration instructions Figure 12 Connecting a Single Battery Set UPS KVA 20 40 60 80 100 120 UPS KW 18 36 54 72 90 108 DC CURRENT 53 106 159 225 281 338 Table 5 Battery current ratings for sem...

Страница 41: ... each battery pole Fuses F5 and F6 in Figure 13 have the same values as those specified in Figure 12 The rating in Figure 13 of Fuses F1 through F4 and of DC SW 1 and 2 for each battery set Figure 12 depends on the number of battery sets The greater the number of battery sets the lower the rating required for fuses F1 through F4 Fuses F5 and F6 and DC SW 1 and 2 Figure 13 must be rated according t...

Страница 42: ... Grid B120US Installation Guide doc rel 3 0 Table 6 Battery lifetime vs environmental temp illustrative as per Eurobat ENVIRONMENTAL TEMPERATURE ACHIEVABLE PERCENTAGE OF BATTERY S RATED LIFETIME 20 C 100 30 C 50 40 C 25 ...

Страница 43: ...al battery box terminals 2 Leave all battery and output circuit breakers in the OFF in position 3 Check to see if the bypass and rectifier input are linked If they are linked then you have to remove the Static Switch If they are not linked simply keep the bypass circuit breaker in the off position 4 Turn the bypass and rectifier CB on and with no power modules in the system the UPS s LCD panel and...

Страница 44: ... panel You will be prompted to provide the UPS with basic system configuration information in order to enable initial operation of the UPS To perform initial UPS configuration 1 Activate the UPS After the UPS is activated the Start screen appears Figure 14 Initial configuration wizard Start screen 2 Write down the MAC address displayed on the screen and press Next ...

Страница 45: ...the Technician password you received form Gamatronic in the Password text input field and press OK Without a password you cannot continue The Battery Capacity screen appears Figure 16 Initial configuration wizard battery capacity in Ah The capacity is used by the UPS when it is in battery mode in order to calculate the amount of backup time remaining ...

Страница 46: ...attery banks the Ah value of each battery bank must be added i e for 2 battery banks of 90Ah each you would enter a value of 180Ah 4 Indicate the capacity of the connected batteries in ampere hours Ah then select Next This capacity figure is used by the UPS when it is in battery mode in order to calculate the amount of backup time remaining The Set Time Zone screen appears Figure 17 Initial config...

Страница 47: ...B120US Installation Guide doc rel 3 0 39 The Finish screen appears Figure 18 Exit configuration wizard 6 Select Finish The initialization menu wizard exits 7 Continue the first time installation process See Section 3 3 6 2 ...

Страница 48: ...ify that the parameter values are appropriate for the batteries you have chosen 2 Turn off the bypass and rectifier input circuit breaker Figure 19 Flat cables 3 Insert a single power module and connect the right and left flat cables If the bypass and input are bridged slide out the Static Switch at least 5 inches Figure 20 Static switch 4 If the bypass and input are bridged slide out the Static S...

Страница 49: ...on the module System Menu Operation On off Modules on The Modules on screen appears Press Confirm 6 Select and shut down the module System Menu Operation On off Modules off The Modules Off screen appears 7 Select the power module icon The selected power module is highlighted with a blue border 8 Select Complete Shutdown The selected power module is shutdown ...

Страница 50: ...d power module is switched on Notice that the active power module is highlighted in blue and is active module 2 while the primary power module is in Standby State module 1 because it was shutdown 14 Once fully operational fully shutdown the power module just added and insert the next power module 15 Repeat this process for each additional power module during first time installation 16 After each m...

Страница 51: ...Confirm Switch on All Modules 22 Confirm OK 23 The system will transfer to bypass then once all inverters are fully operational the system will transfer the output to the inverter i e Normal Mode 24 Turn on the battery CB to the UPS and then verify battery voltage on the Status screen Main Status This may take a minute 25 Check input bypass output and DC voltages 26 Select Main to return to the Sy...

Страница 52: ...ooting Guide Figure 23 The Alarms icon indicates alarm conditions 28 Perform a brief battery test to verify that the UPS is ready and able to operate in battery mode when it is needed Operation Battery test Test battery The Test in Progress screen appears Figure 24 Next scheduled test screen 29 Press Test Battery The Test in Progress screen appears ...

Страница 53: ...tation over all CBs 31 On the Status screen verify that the bypass and the inverters are synchronized This is the recommended stage at which to perform load testing before transferring the customers critical load to being supported by the UPS For load testing instructions refer to Testing Section 3 4 32 Transfer the unit to bypass Operation Transfer load Transfer to bypass The Transfer load to byp...

Страница 54: ...e bypass circuit breaker to move the load to the UPS 36 Transfer the load to inverter Do not transfer the load to the inverter if the maintenance bypass circuit breaker is still in the ON position Operation Transfer load Transfer to inverter The Transfer load to inverter dialog appears Figure 27 Confirm Transfer Load to Inverter dialog 1 Press OK 2 Update the last maintenance date Main Setup Syste...

Страница 55: ...ar sliders This will set a system maintenance reminder alarm one year from the current date 4 Press Confirm Finally you must save the settings you have defined 5 To save the settings you defined from the System Menu choose Setup Save and restore Save settings The Save User Settings screen appears Figure 29 Confirm Save User Settings 6 Confirm OK The User Settings are saved The system is now suppor...

Страница 56: ...S supports use of a fixed IP address and also supports dynamic assignment of IP addresses DHCP Consult your IT systems administrator and determine if your IP network supports DHCP and if there is a preference for using either a fixed IP address or a dynamically assigned IP address for the UPS To obtain an IP address automatically To obtain an IP address automatically your network must support DHCP...

Страница 57: ...nectivity IP Address Configuration 2 Select Use static IP address The IP address configuration screen appears Figure 31 IP address configuration You should have previously obtained from your network support personnel an IP address for the UPS as well as a subnet mask a gateway address a primary DNS address and a secondary DNS address 3 Type the addresses including digits and dots that make up the ...

Страница 58: ...ests on the UPS unit This section explains how to perform the following tests on the UPS system 1 Self loading PQ mode test 2 Under load test 3 Battery mode blackout test 4 ATS test 5 ECO Mode test 6 Check IP Communication with Controller test The unit offers a self loading feature that removes the need for load banks or rewiring of the system 3 4 1 Test Self loading PQ mode This feature is availa...

Страница 59: ...able and then select Confirm 3 PQ Mode is enabled 4 Transfer system from VF mode to PQ mode with 2 kW active load System Menu Operation PQ setup The PQ Mode Setup screen appears Figure 33 PQ Mode setup 5 Initially select 2000W active power from the Active Power slider 6 Select PQ Mode 7 Select Confirm 8 Wait until the system starts PQ mode 9 From the System Menu go to System Menu Status ...

Страница 60: ...y increasing the active power in 10 increments After each time you raise the active load level press Confirm and wait 1 minute The load level can be incrementally raised to 95 98 kW of maximum system output power depending on the number of power modules in the system 12 Run the system for 5 10 minutes 13 If you want to test reactive simulated loads change the loads to 70 of max kW active power usi...

Страница 61: ...using the Active power slider and Reactive power slider 16 Transfer the system back to VF mode in order to return the UPS back to normal system operation 17 Disable PQ mode System Menu Setup System System type PQ mode Figure 36 Disable PQ mode The system is back in full operation and is ready to be used as a UPS 3 4 2 Test Under load This test is designed for standard load bank testing to verify t...

Страница 62: ... of a blackout when no ac power is supplied to the UPS To perform this test the system must be in Normal Mode plus the battery must be attached and fully charged To perform the battery mode blackout test 1 Turn all ac input to the system OFF Turn OFF the ac input switches to both Bypass and Rectifier 2 Test the voltage at the system output between the phases and the neutral It should be within the...

Страница 63: ...they are already taken by the back feed and surge protector To perform the ATS test 1 From the System Menu choose Main Setup Dry contacts Generator mode setup The Generator screen appears Figure 37 Generator mode 2 From the Generator drop down menu choose dry contact 2 and select Confirm Now that it is enabled the battery charging current will be limited when the contact opens or closes depending ...

Страница 64: ...condary power source 2 Verify that the ATS is set to 10 seconds transfer delay and it is fully operational 3 Disconnect the primary input feed 4 Verify that the ATS transfer time was greater than 10 seconds 5 Verify stability of UPS output 6 Verify limited charging current to the battery 2A 3 4 5 Test ECO Mode For customers looking to maximize efficiency the UPS can be configured to support ECO mo...

Страница 65: ...tup System System Type ECO Mode The Password screen appears 3 Type in the Gamatronic password key you received from Gamatronic support in the Password text input field 4 Click OK The ECO Mode screen appears Figure 39 ECO Mode screen Enabled checkbox 5 Select Enabled and then select Confirm The system returns to the System Type screen ECO Mode has been enabled The next step is to turn ECO Mode ON 6...

Страница 66: ...g on ECO Mode 7 Select ECO Mode off click for change The ECO Mode off button is toggled on The next step is to confirm ECO Mode is active 8 From the System Menu go to Status The Status screen appears Figure 41 Status screen UPS ON and ECO Mode ON Notice the Status screen indicates UPS ON and ECO Mode message ...

Страница 67: ... on the operating system of the computer you are using To test IP communication with the controller 1 Use an RJ45 to RJ45 straight or crossed cable to attach a PC or laptop or other external computer to the Ethernet RJ45 port on the UPS s system controller 2 Configure the network connections of the external computer so that the computer is in the same domain as the UPS that is so that the first th...

Страница 68: ...60 UPS for 208 Vac Grid B120US Installation Guide doc rel 3 0 The UPS System Menu should appear Figure 42 Web View This confirms IP communication with the controller ...

Страница 69: ...ections They are grouped together on the front panel of the UPS in what is referred to as connector group 1 and connector group 2 See Figure 43 Figure 43 Location of Connector Groups 1 and 2 on the front of the UPS Location of connector groups 1 and 2 is shown in Figure 43 and close up views of the connectors are shown further on in the text where relevant ...

Страница 70: ...mediately goes into Bypass mode These contacts are intended to be used in conjunction with the Maintenance Bypass function They should be closed by the user s maintenance bypass switch to ensure that the UPS is in Bypass mode before moving to maintenance Bypass mode P28 Supplies 48 Vdc for battery trip coil P11 Contacts for Emergency Power Off EPO switch N O P19 Triggers the battery trip coil whic...

Страница 71: ...5 PLUG NAME PIN CONNECTION NAME COMMENT P1 1 Digital output 1 Low Battery 2 3 Digital output 2 AC fail 4 P2 1 Digital output 3 LVD this works in tandem with P13 pins 1 and 3 Do NOT remove P2 or P13 2 3 Digital output 4 4 P3 1 Digital output 5 2 3 Digital output 6 4 P4 1 Digital output 7 2 3 Digital output 8 4 P5 1 RS485 Modbus A 2 RS485 Modbus B ...

Страница 72: ...mp sensor 2 A 4 Temp sensor 2 B P8 1 Digital input 1 2 Common 3 Digital input 2 Optional Generator mode 4 Common P9 1 Digital input 3 Surge protector fault 2 Common 3 Digital input 4 Optional Maintenance bypass 4 Common P10 1 Digital input 5 2 Common 3 Digital input 6 4 Common P11 1 Digital input 7 2 Common 3 Digital input 8 4 Common P12 1 12 V Positive Battery Current ...

Страница 73: ...emove 2 Battery current 1 3 Gnd 4 12 V P14 1 12 V N A 2 Battery current 1 3 Gnd 4 12 V P15 1 12 V Negative Battery Current 2 Battery current 1 3 Gnd 4 12 V P16 3 Digital output 2 4 Common 5 Digital output 1 6 Remote panel PWR 7 Remote panel DAT 8 Remote panel CLK 9 Remote panel Gnd P17 2 RS232 TX 3 RS232 RX 5 RS232 Gnd ...

Страница 74: ...any time Refer to The UPS User Guide for detailed instructions on configuration of the dry contacts Figure 46 Four pin connectors 4 2 Emergency Power Off EPO manual An external Emergency Power Off EPO switch should be installed on the UPS by the customer The EPO switch cuts all output power to the load in emergency situations The connection point for the EPO switch is in connector group 1 see a tw...

Страница 75: ... load from bypass to inverter This takes about 2 minutes The UPS is now operating normally 4 3 Surge Protector Malfunction Alarm The UPS is equipped with a MOV type Metal Oxide Varistor surge arrestor If the surge arrestor malfunctions a system alarm is generated The MOV surge protector makes use of one of the input dry contacts to transmit the alarm to the UPS This relay is normally open and clos...

Страница 76: ... 0 Figure 47 LVD wiring diagram Figure 47 shows how to wire UPS to enable the LVD battery protector Wire should be 12AWG or of a cross section area 2 5 mm2 is recommended For additional information about configuring the LVD function refer to the UPS User Guide ...

Страница 77: ... A problem that can arise in such a situation is how to prevent the main circuit breaker from tripping before the downstream circuit breaker closest to the load is tripped As an example Figure 48 shows a typical UPS feeding a number of loads When a short circuit occurs in Load 2 the system switches the load to the bypass line In the example the bypass line includes CB01 CB03 and CB05 The problem i...

Страница 78: ...rrent values and maximum bypass current values and recommended circuit breaker ratings In order to protect the UPS s bypass contactor and also the main input of the UPS for all scenarios including short circuit Gamatronic recommends the following The circuit breaker that feeds the bypass input line and the circuit breaker feeding the main input of UPS shall have no magnetic protection delay or a m...

Страница 79: ... each UPS to provide optimal load sharing between the units One of the parallel UPS systems assumes the role of Master This unit is synchronized to the mains power The other units operate as Slaves and are synchronized to the Master The function of Master is assumed by the first system to be switched on during the parallel start up process This is transparent to the system operator 6 1 1 Decentral...

Страница 80: ...e units will also transfer to Bypass mode simultaneously 6 1 2 Parallel communication When two or more UPS units are operated in parallel parallel communication must take place between them in a ring arrangement This is accomplished by the use of Gamatronic provided cables with D25 connectors on each end Parallel communication keeps the parallel units synchronized with each other and is used to pa...

Страница 81: ... Table 9 Figure 51 Location of the parallel comm connections at inside rear of the system Connections for the two parallel communication cables when two or more UPS s are being operated in parallel configuration All parallel communication cables the 25 pin cables must be housed in appropriate conduits ...

Страница 82: ...n parallel can be setup in one of two ways to batteries 1 Common battery Is a single battery connection that is shared between all the UPS systems that are running in parallel 2 Decentralized battery Is a separate battery bank per unit 6 2 Instructions for parallel configuration Best practice UPS configuration in multi system mode include the following stages 1 Verify independently each UPS and it...

Страница 83: ...s for parallel communication between UPSs DESCRIPTION QUANTITY PER UNIT GAMATRONIC CATALOG NO PARALLEL KIT B SERIES DECENTRALIZED DC Black 1 101 B PARA ED PARALLEL KIT B SERIES COMMON DC Grey 1 101 B PARA CD The supplied parallel communication cables are 5 meters long 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 ...

Страница 84: ...Figure 53 Decentralized DC Parallel communication cable 4 Verify that each UPS s output circuit breaker is in the OFF position CB5 in the connection diagrams Figure 57 5 Turn on one of the systems This system will become the master system Wait until the startup procedure is complete you will see the System Menu ...

Страница 85: ...obtain the necessary access codes 7 Now turn on the other parallel system or systems These will be the slave systems You can have up to four systems in a parallel configuration 8 Once the Master System has completed the start up process step 6 above the remaining systems slave systems can be switched on together Wait until they finish start up and verify that each system is in Normal mode and has ...

Страница 86: ...is designated Master Power Module 9 Put the slave systems in multisystem mode System Menu Setup System Type 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 If the difference in output voltage is greater than 2 for any phase navigate to the System Menu Status screen tap the Modules ico...

Страница 87: ... Menu Setup Modules Ac output voltage calibration and change the output voltage for the problematic module phase You must tap Confirm for each module that you update 13 When you have verified that all of the slave systems have output voltages 1 of the Master System put each system in Bypass mode System Menu Operation Transfer Transfer load to bypass 14 For each slave system compare the output volt...

Страница 88: ...f systems Under full load the difference in output current between any two systems should not exceed 10 of the total system output current 18 The parallel systems are now ready for use for any loads up to the maximum rated output in kW of the combined systems Figure 57 Connection diagram for 2 parallel units ...

Страница 89: ...UPS for 208 Vac Grid B120US Installation Guide doc rel 3 0 81 Figure 58 Connection diagram for 4 Units in Parallel ...

Страница 90: ...to the loads The maintenance bypass switch routes the current around the UPSs for the safety of the technician The optional maintenance bypass switch is shown in the connection schematics for parallel systems Figure 58 The rating of circuit breaker CB12 in the connection schematics must be appropriate for the number of parallel UPSs Table 10 Rating of CB12 for maintenance bypass option NUMBER OF P...

Страница 91: ...wer 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 This mode of operation is also commonly referred to as wrap around maintenance bypass Verify 0V across ALL terminals before disconnectin...

Страница 92: ...doc rel 3 0 7 1 Circuit Breaker Layout Figure 59 Electrical setup 7 2 Transferring the UPS to maintenance Bypass mode from normal mode In normal operation the UPS s ac circuit breakers are positioned as shown in Table 11 see Figure 59 for CB locations ...

Страница 93: ... CB 6 ON ON ON ON OFF 1 From the System Menu go to Status The Status screen appears Figure 60 UPS On Normal Mode 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 From the System Menu go to Operation Transfer load Transfer load to bypass...

Страница 94: ... 5 From the System Menu go to Main Status The UPS On Bypass mode screen appears Figure 62 UPS ON Bypass mode Notice the UPS ON Bypass mode message on the screen 6 Verify that the load is being supported by the bypass Then operate the UPS s ac circuit breakers as follows 7 Switch ON the MAINTENANCE BYPASS circuit breaker 8 Switch OFF the AC OUTPUT circuit breaker ...

Страница 95: ...PS s ac circuit breakers are positioned as shown in Table 13 see Figure 59 for CB locations Table 13 Maintenance bypass operating position of the circuit breakers Battery box input on battery box Rectifier ac input CB 2 Bypass ac input CB 3 UPS AC output CB 5 Maintenance bypass CB 6 OFF OFF OFF OFF ON To put the system in normal mode operate the UPS s ac circuit breaker as follows 13 Switch ON the...

Страница 96: ...elect Operations transfer load to inverter 22 Verify that the load is being supported by the inverters on the Status screen Table 14 Position of the CBs in normal mode Battery box input on battery box Rectifier ac input CB 2 Bypass ac input CB 3 UPS AC output CB 5 Maintenance bypass CB 6 ON ON ON ON OFF ...

Страница 97: ...UPS during mains power failure In such cases the switching between the two sources the mains and the generator is performed by an Automatic Transfer Switch ATS Because these two sources are not usually synchronized switching between them requires an interval of at least 10 seconds Figure 63 illustrates the timing factors involved when using an ATS For proper functioning of the UPS the values used ...

Страница 98: ...ns the normal source is available R is the reserve source The timing variables T1 through T5 are described in Figure 63 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 ...

Страница 99: ...North America Modifications could entail adding or removing modules as well as performing service or maintenance 2 A UPS kVA rating is a maximum rating the actual UPS can have fewer power modules and therefore an output rating less than maximum However wiring must always be according to the maximum UPS kVA rating CHANGE LOG Rev 2 0 November 2019 Connection terminal figures common battery cable for...

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