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SolarEdge Gamatronic B300 Installation Manual

Three phase modular ups for the 400v grid
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This installation
guide is for product
101SKD60
G
AMATRONIC
T
P
M
UPS
HREE
HASE
ODULAR
400V
FOR THE
GRID
B300
INSTALLATION GUIDE
Revision 3.0, January 2020 (Doc. 2MUM-B300I)

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Summary of Contents for SolarEdge Gamatronic B300

  • Page 1 This installation guide is for product 101SKD60 AMATRONIC HREE HASE ODULAR 400V FOR THE GRID B300 INSTALLATION GUIDE Revision 3.0, January 2020 (Doc. 2MUM-B300I)
  • Page 2 Remember to register your product at: http://www.gamatronic.com/product-warranty in order to activate your warranty. UPS for 400 Vac Grid, Installation Guide, doc. rel. 3.0...
  • Page 3 TANDARDS AND ONVENTIONS This user manual contains diagrams which include images of the display screen of the UPS. Unless  otherwise indicated, the readings shown in the screen images are only illustrative, and are not intended to match the readings on a specific system in any particular environment. Operation and control of the UPS is accomplished through a touch-sensitive LCD display screen.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS UNPACKING INSTRUCTIONS ..........................1 SAFETY PRECAUTIONS ............................4 ’ ....................................4 ’ ................................... 5 SYSTEM STRUCTURE AND INSTALLATION ......................7 3.1. IMPORTANT INSTALLATION INFORMATION ....................11 3.2. INSTALLATION CHECKLIST .......................... 12 3.3. INSTALLATION PROCEDURE ........................23 Visual Inspection ..........................23 3.3.1.
  • Page 5 EPO and parallel operation ..........................77 6.1.2.1. Common vs. Decentralized battery ........................77 6.1.2.2. 6.2. INSTRUCTIONS FOR PARALLEL CONFIGURATION ..................77 Maintenance bypass for parallel systems .................... 85 6.2.1. PROCEDURE: MAINTENANCE BYPASS MODE ....................86 7.1. CIRCUIT BREAKER LAYOUT ......................... 87 7.2.
  • Page 6 LIST OF FIGURES 1: I ....................1 IGURE NSPECT THE SHIPPING CRATE FOR SIGNS OF DAMAGE 2: S ........................2 IGURE HOCK ATCH AND ATCH DEVICES 3: R ) ................3 IGURE EMOVE THE ROOF AND SUPPORT BEAM USE ELECTRIC SCREWDRIVER 4: R ..........................
  • Page 7 47: C 1 ........................64 IGURE LOSE UP OF ONNECTOR ROUP 48: C 2 ............................65 IGURE ONNECTOR GROUP 49: F ............................68 IGURE OUR PIN CONNECTORS 50: LVD ............................71 IGURE WIRING DIAGRAM 51: A UPS' ............................. 72 IGURE S BYPASS CIRCUIT 52: T ) ...................
  • Page 8 LIST OF TABLES 1: K 5 ..............................8 ABLE EY TO IGURE 2: K 6 ..............................9 ABLE EY TO IGURE 3: R ........................... 25 ABLE ECOMMENDED CLEARANCES 4: R 30-300 UPS ..........32 ABLE ECOMMENDED CIRCUIT BREAKERS FOR THE CURRENT RATING FOR 5: B ...............

  • Page 9: Unpacking Instructions

    1. Unpacking Instructions 1. Inspect the shipping crate for any signs of damage that may have occurred while in transit. Figure 1: Inspect the shipping crate for signs of damage 2. Inspect the ShockWatch and TiltWatch devices, which are adhered to the outside of the wooden packing crate.

  • Page 10: Figure 2: Shockwatch And Tiltwatch Devices

    - OR - Figure 2: ShockWatch and TiltWatch devices These devices indicate if the package 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.

  • Page 11: Figure 3: Remove The Roof And Support Beam (Use Electric Screwdriver)

    Figure 3: Remove the roof and support beam (use electric screwdriver) 7. Remove the screws that 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.

  • Page 12: Safety Precautions

    2. Safety Precautions The UPS system is designed for a wide range of environments. Nevertheless, the modular UPS should be handled with care, according to the following guidelines. Do’s Read this manual and the User Guide carefully before starting installation and operation of the ...

  • Page 13: Don'ts

    If you remove a power module from the UPS 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 UPS – for ...
  • Page 14 If you remove a power module from the UPS while the module is operating, do not reinsert  the module immediately. Wait five minutes. WARNING - RISK OF LETHAL ELECTRIC SHOCK: This UPS receives power from more than one source! Disconnection of all ac sources and dc sources is required to de-energize this unit before servicing.

  • Page 15: System Structure And Installation

    3. System Structure and Installation The UPS is composed of: Up to 10 power modules, each providing 30 kVA/30 kW  Static switch module  System controller  Maximum output capacity of the UPS is 300 kVA/300 kW. Figure 5: Major UPS components (front view) UPS for 400 Vac Grid, Installation Guide, doc.
  • Page 16 Table 1: Key to Figure 5 Item Description The system controller and the LCD screen combined. The UPS cabinet’s front door Power modules. Each supplies 30 kVA / 30 kW. Removable static switch and 5 dry contacts. “Connector group 1”. Dry contacts and communication connections.

  • Page 17: Figure 6: Main Terminals Viewed From The Ups Rear

    Figure 6: Main terminals viewed from the UPS rear Table 2: Key to Figure 6 Item Description Bypass Input (L1) Bypass Input (L2) Bypass Input (L3) Ac Input (L1) Ac Input (L2) Ac Input (L3) Ac Output (L1) Ac Output (L2) Ac Output (L3) Positive battery terminal (+) Battery midpoint and Neutral bus bar.
  • Page 18 LL 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 MPROPER WIRING MAY CAUSE INJURY TO PERSONNEL AND OR DAMAGE TO THE EQUIPMENT N THE EVENT THAT THE HAS BEEN DISCONNECTED FROM THE AC...

  • Page 19: Important Installation Information

    Important Installation Information 3.1. The Gamatronic UPS must be connected a “4-wire + Ground” configuration (i.e., 3 phases + Neutral + Ground). The voltage displayed 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.

  • Page 20: Installation Checklist

    Installation Checklist 3.2. Complete the following checklist as you perform the installation, initialization, configuration, and testing procedures. Refer to the appropriate sections (specified in the Reference column) for detailed information about each checklist item. The detailed explanation of each section can be found in Section 3.3 and Section 0.
  • Page 21 Mechanical Test One by one, place each power module in a shelf and push it all the way in. Verify that each module makes a mechanincal connection with the power backplane on the inside rear of the shelf. Slide out each Power module by about 7cm, enough to unplug them from the power backplane, and attach the right and left ribbon cables between the modules and the base.
  • Page 22 √ Activity Requirement Reference S i te P re pa ra ti o n – Ph ys i cal Between: +15°C / +25 °C (+59 °F / +77 °F ) 3.3.2 Check ambient temperature. Min/max: –10 °C / +40 °C (+14 °F / +104 °F) 3.3.2 No condensation/dampness.
  • Page 23 Site Preparation – Electrical Before wiring the system, verify that all possible voltage sources are disconnected, and the following circuit breakers are in the “OFF” state: Rectifier ac input, Bypass ac input, ac output and all Battery cabinets. Verify that all ac phase, Verify that wire sizes for Ac input, Bypass ac input, Ac output, Battery cabinet meet neutral, dc pole and midpoint...
  • Page 24 Figure 13 If you are using more than one battery set, perform the following steps: 19.1 Verify proper polarity of the battery Batteries are connected and connections to the UPS according to OFF. Figure 13. 19.2 Connect the batteries as per Figure 13. Negative pole to midpoint Leave SW1 through SW4 open (“OFF”).
  • Page 25 System Start-Up Remove all power modules, switch ON bypass and rectifier input circuit breakers and keep the output breaker OFF. LCD screen and system The system controller and static switch will output are on. switch ON. Note: the static switch will supply output power from the bypass.
  • Page 26 Module start up process 27. First time module installation: 1. Turn off the bypass and rectifier input circuit breaker. Then 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 15cm.
  • Page 27 √ Check DC voltage Turn on the battery circuit breakers and wait for the dc realys to connect the rectifer to the battery. If the battery voltage is low verify that the battery is charging and wait until the battery reaches its floating voltage.
  • Page 28 Check OUTPUT values Verify that the system is on inverter, if not transfer load to the inverter "Main>Operation>Transfer load>Transfer load to inverter" Preform a complete shutdown to all but one power module. "Main>Operation>on/off>modules off>complete shutdown" Ac output phase-to-neutral voltages (should be 230 V, ±2%). L1 –...
  • Page 29 Testing and Setup 46. Verify that the system is running on normal mode at full capcity. 47. Verify that the batteries are connected and at floating volatge ±405 Vdc. Confirm that there are no system alarms. Battery test: preform a battey test main>operation> battery test. The batteries are required to hold the inverter DC voltage and pass until the end of the 5 minutes.
  • Page 30 Transfer the UPS to inverter (i.e. Normal Mode) Verify that output voltage under load is 230V ±2 %. Record load current: L1 = L2 = L3 = Connect the Ethernet cable. Configures IP address, time server, and DHCP, according to the preferences of the local IT team.

  • Page 31: Installation Procedure

    Installation Procedure 3.3. After completing each step in the following installation, return to the Installation Checklist (Section 3.2) and place a checkmark or measurement next to the corresponding item. The UPS can come in various configuration capacities. The installation instructions in this guide cover up to the maximum model configuration capacity.

  • Page 32: Figure 7: Dimensions Of The Gamatronic Ups

    Recommended operating temperature:  Between +15°C and +25 °C (+59°F and +77 °F). 2. Verify that there is no water condensation 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.

  • Page 33: Site Preparation - Electrical

    Table 3: Recommended clearances ECOMMENDED MINIMUM CLEARANCE AROUND THE Front 110 cm (43 in.) Minimum adequate clearance for user access and service. Rear 100 cm (39 in.) Minimum adequate clearance for cable connections. No minimum clearance provided that the UPS is not placed next to heat-emitting or electronic equipment.

  • Page 34: Cabling

    5. Verify that voltage between neutral and ground is between 0 and 2 Vac. (if not there may be an issue with the grounding). 6. Check the dc voltage at the switch of the battery cable. Measure the voltage between the plus side and battery Midpoint, and between the minus side and battery Midpoint.

  • Page 35: The Neutral Line

    The Neutral Line 3.3.4.2. When the UPS is operating, a neutral line must be connected at all times and must not be disconnected at any time. Caution: If at any time the neutral line becomes disconnected, there will be no input or output reference voltage because the input neutral line and the output neutral line are physically linked together.

  • Page 36: Figure 9: Recommended System Connections

    Figure 9: Recommended system connections Note: For recommended circuit breaker and fuse ratings, refer to Table 4. UPS for 400 Vac Grid, Installation Guide, doc. rel. 3.0...

  • Page 37: Figure 10: Recommended Connections With Input Isolation Transformer

    Figure 10: Recommended connections with input isolation transformer Note: For recommended circuit breaker and fuse ratings, refer to Table 4. UPS for 400 Vac Grid, Installation Guide, doc. rel. 3.0...

  • Page 38: Figure 11: Terminal Connections

    Figure 11: Terminal connections Access to the main terminals on the B300 can be obtained by simply opening the back door and removing the bottom panel 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.

  • Page 39: Connecting The Ups To The Electrical Panel

    Connecting the UPS to the electrical panel 3.3.4.4. When connecting the electrical panel to The Gamatronic UPS, a torque of 10 to 20 Nm is recommended on the UPS terminal side. The lug size needed to fit a 3/8" or metric M10 screw size.

  • Page 40: Table 4: Recommended Circuit Breakers For The Current Rating For 30-300Kva 400V Ups

    Table 4: Recommended circuit breakers for the current rating for 30-300kva 400v UPS Recommended Circuit Breaker / switch ratings for B300 UPS Model Nominal SW1 rating C.B. rating CAPACITY rating for output INPUT CURRENT (RECTIFIER (CB5) and (KVA) INPUT CB) (Rectifier BYPASS input CB)

  • Page 41: Assembling And Connecting External Batteries

    IMPORTANT: If local electrical codes are stricter than the above recommendations, the local codes take priority. Assembling and connecting external batteries 3.3.4.5. The UPS supports the use of standard lead-acid batteries, and also lithium- ion batteries. If you plan to use lithium-ion batteries, consult with Gamatronic Support to be sure that the battery setup parameter values are appropriate for the batteries you will be using.

  • Page 42: Figure 12: Connecting A Single Battery Set

    Figure 12: Connecting a Single Battery Set Table 5: Battery current ratings for semiconductor fuses and circuit breakers UPS CAPACITY (KW) UPS CAPACITY (KVA) CURRENT (A) FUSE (A) 7. The fuses between the battery cabinets and The UPS (F1, F2, F3, and F4 in Figure 12) must be FAST FUSES (SEMICONDUCTOR FUSES);...

  • Page 43: Figure 13: Connecting Multiple Battery Sets, Using Cbs

    Figure 13: Connecting multiple battery sets, using CBs Figure 13 shows how two battery sets can be connected to the UPS. This example includes two circuit breakers (DC SW #1 and #2), one for 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.

  • Page 44: Table 6: Battery Lifetime Vs Environmental Temp. (Illustrative, As Per Eurobat)

    Table 6: Battery lifetime vs environmental temp. (illustrative, as per Eurobat) NVIRONMENTAL CHIEVABLE PERCENTAGE OF BATTERY S RATED LIFETIME TEMPERATURE 20 °C 100 % 30 °C 50 % 40 °C 25 % UPS for 400 Vac Grid, Installation Guide, doc. rel. 3.0...

  • Page 45: Powering Up The System

    Powering up the system 3.3.5. This section represents the UPS system state as it unboxed with initial Factory Settings. To power up the system: Initial configuration consists of three stages: 1. Before powering the UPS 2. Execution of the system startup wizard 3.

  • Page 46: Initial Configuration

    Initial Configuration 3.3.6. After initial system configuration is performed for the first time, the initial configuration Wizard will not appear again. System Startup Wizard 3.3.6.1. When the UPS is initially started up, a series of configuration screens are presented on the LCD display panel.

  • Page 47: Figure 15: Initial Configuration Wizard: Password Entry

    The Password screen appears: Figure 15: Initial configuration wizard: password entry 3. Type 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.

  • Page 48: Figure 17: Initial Configuration Wizard: Set Time Zone

    If you are not sure of your batteries’ Ah capacity, check one of the batteries in the battery cabinet(s). The Ah rating is usually indicated on the battery's exterior. The Ah rating of a single battery is the same as for the entire cabinet. When using multiple battery banks the Ah value of each battery bank must be added (i.e.

  • Page 49: Figure 18: Exit Configuration Wizard

    The Finish screen appears: Figure 18: Exit configuration wizard 6. Select Finish. The System Menu wizard exits. 7. Continue the first time installation process (See Section 3.3.6.2). UPS for 400 Vac Grid, Installation Guide, doc. rel. 3.0...

  • Page 50: Continuing First Time Startup Process

    Continuing first time startup process 3.3.6.2. To continue the first time startup process: 1. If you are using lithium-ion batteries, contact Gamatronic support for configuration instructions and check the values in the Setup > Battery parameters against the information in the battery manufacturer’s data sheet. Verify that the parameter values are appropriate for the batteries you have chosen.

  • Page 51: Figure 21: Modules On Screen

    If the power module was shut down during factory quality testing you will have to manually turn on the module. System Menu > Operation > On/off > Modules on The Modules on screen appears: Figure 21: Modules On screen Press Confirm. 6.

  • Page 52: Figure 23: Modules On Screen

    8. Select Complete Shutdown. The selected power module is shutdown. 9. Insert the next power module 3/4 of the way in and attach the 2 flat cables then, slide it in fully. 10. Turn on the power module (Main > Operation > Turn On/Off > Modules on). The Modules on screen appears: Figure 23: Modules On screen 11.

  • Page 53: Figure 24: Confirm Disconnecting The Load

    Figure 24: Confirm Disconnecting the Load 17. Confirm OK. 18. Turn off all input circuit breakers. 19. If removed previously, insert the Static Switch. 20. Turn on bypass, rectifier and battery circuit breakers 21. Turn on the system. (Main > Operation > On/Off > System on) The Confirm Turn System On screen appears: Figure 25: Confirm Switch on All Modules 22.

  • Page 54: Figure 26: The Alarms Icon Indicates Alarm Conditions

    For additional information about responding to Alarm indications, refer to the Troubleshooting Guide. Figure 26: 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 >...

  • Page 55: Figure 28: Battery Test In Progress Screen

    Figure 28: Battery Test in Progress screen After 5 minutes verify that the battery test has passed. 30. Verify that the ac output circuit breakers on the electrical panel are OFF, and verify proper phase rotation 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.

  • Page 56: Figure 30: Confirm Transfer Load To Inverter Dialog

    34. You can now connect a load device to the ac output circuit breaker and then turn ON the ac output circuit breakers on the electrical panel. 35. If working with operating loads turn off the maintenance bypass circuit breaker to move the load to the UPS.

  • Page 57: Assigning Ip Address To The Ups

    39. Set the correct last maintenance date using the Day, Month, Year sliders. This will set a system maintenance reminder alarm one year from the current date. 40. Press Confirm. Finally, you must save the settings you have defined. 41. To save the settings you defined, from the System Menu choose Setup > Save and restore >...

  • Page 58: Figure 33: Ip Address Configuration

    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. 1.

  • Page 59: Figure 34: Ip Address Configuration

    The IP address configuration screen appears: Figure 34: 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. 6.

  • Page 60: Testing

    Testing 3.4. Perform the following system functionality tests on the UPS unit. This section covers the following UPS system tests: 1. Self loading/PQ mode test 2. Under load test 3. Battery mode blackout test 4. ATS test 5. ECO Mode test 6.

  • Page 61: Figure 35: Enable Self-Loading/Pq Mode

    The Self-loading/PQ mode screen appears: Figure 35: Enable Self-loading/PQ mode 2. Select Enable 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 > Self-loading/PQ mode) The Self-loading/PQ mode Setup screen appears: Figure 36: Self-loading/PQ mode setup 5.

  • Page 62: Figure 37: Self-Loading/Pq Mode

    The Status screen appears: Figure 37: Self-loading/PQ mode 7. Verify that the Rectifier Input current level has gone up and the Static switch is bridged to the inverter (See Figure 37). 8. Navigate back to the Self-loading/PQ mode setup screen, and change PQ power, by increasing the active power in 10% increments.

  • Page 63: Test: Under Load

    11. Run for 5-10 min. 12. When you have completed system acceptance testing lower the active and reactive load levels in 10% increments back down to 0 using the Active power slider and Reactive power slider. 13. Transfer the system back to VF mode in order to return the UPS back to normal system operation.

  • Page 64: Test: Battery And Blackout Mode

    Test: Battery and blackout mode 3.4.3. This test is designed to verify the operation of UPS in the event 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.

  • Page 65: Figure 40: Generator Mode

    To perform the ATS test: 1. From the System Menu choose Main > Setup > Dry contacts > Generator mode setup. The Generator screen appears: Figure 40: 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 on controller setting configuration.

  • Page 66: Test: Eco Mode

    The Input Dry Contacts screen appears: Figure 41: Changing the auxiliary contact to normally closed 2. In the Input Dry Contacts screen, locate the Generator dry contact now that you have enabled it, and select normally open or normally closed depending on your ATS or Generator’s auxiliary output.

  • Page 67: Figure 42: Eco Mode Screen - Enabled Checkbox

    To put the system in ECO Mode: In order to unlock ECO Mode you require a special code from Gamatronic support. 1. Switch to Technician level user. 2. From the System Menu navigate to Setup > System > System Type > ECO Mode. The Password screen appears.

  • Page 68: Figure 43: Turning On Eco Mode

    The Operation screen appears: Figure 43: Turning on ECO Mode 7. Select ECO Mode off (click for change). 8. The ECO Mode off button is toggled on. 9. The next step is to confirm ECO Mode is active. 10. From the System Menu navigate to the Status screen. The Status screen appears: Figure 44: Status screen, UPS ON and ECO Mode ON Notice the Status screen indicates UPS ON and ECO Mode.

  • Page 69: Test: Ip Communication With Controller

    The system will run on ECO mode until either there is a variant in the grid power supply or the system is manually transferred back to normal mode. You have successfully enabled ECO Mode and turned ECO Mode on. Test: IP Communication with Controller 3.4.6.

  • Page 70: Figure 45: Web View

    The UPS System Menu should appear: Figure 45: Web View This confirms IP communication with the controller. UPS for 400 Vac Grid, Installation Guide, doc. rel. 3.0...

  • Page 71: Auxiliary Connections

    4. Auxiliary Connections Besides the main power terminals, the UPS has a number of auxiliary connections. 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 46). Figure 46: Location of Connector Groups 1 and 2 on the front of the UPS Location of connector groups 1 and 2 is shown in Figure 46, and close-up views of the connectors are shown further on in the text where relevant.

  • Page 72: Figure 47: Close - Up Of Connector Group 1

    Figure 47: Close-up of Connector Group 1 Table 7: Key to Figure 47 ESCRIPTION P23 Load-on-bypass dry contact, N.O. Forced Bypass contacts. N.O. When these contacts are closed, the UPS immediately goes into Bypass mode. These contacts are intended to be used in conjunction with the Maintenance Bypass function.

  • Page 73: Figure 48: Connector Group 2

    Figure 48: Connector group 2 Table 8: Description of Connector Group 2 (Key to Figure 48) ONNECTION OMMENT NAME Digital output #1 Low Battery Digital output #2 AC fail LVD (this works in tandem with P13 pins 1 and 3) Digital output #3 Do NOT remove P2 or P13 Digital output #4...
  • Page 74 RS485 Parallel A RS485 Parallel B Temp. sensor #1 A Temp. sensor #1 B Temp. sensor #2 A Temp. sensor #2 B Digital input #1 Common Digital input #2 (Optional: Generator mode) Common Digital input #3 Surge protector fault Common Digital input #4 (Optional: Maintenance bypass) Common...
  • Page 75 Battery current #1 -12 V +12 V Battery current #1 Do NOT remove -12 V +12 V Battery current #1 -12 V +12 V Battery current #1 Negative Battery Current -12 V Digital output #2 Common Digital output #1 Remote panel PWR Remote panel DAT Remote panel CLK Remote panel Gnd...

  • Page 76: Input And Output Dry Contacts

    Input and Output Dry Contacts 4.1. The UPS has input and output dry contacts. The input dry contacts enable the UPS’s computer to monitor the state (open or closed) of a relay external to the UPS, and to generate an alarm if the state of the external relay changes. The output dry contacts enable the UPS to trigger an external circuit in response to a system alarm.

  • Page 77: Emergency Power Off - Epo (Manual)

    Emergency Power Off – EPO (manual) 4.2. 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 two-pin connector on the static switch of the system (connector group 1).

  • Page 78: Surge Protector Malfunction Alarm

    Surge Protector Malfunction Alarm 4.3. 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 closes when the surge arrestor detects a malfunction.

  • Page 79: Lvd Battery Protector

    LVD Battery Protector 4.4. The LVD battery protector is a mechanism that protects the batteries from deep discharge. For additional information about the LVD battery protector, refer to the UPS User Guide. The Battery CB trip coil must have a tripping voltage of 48 Vdc to be supplied from the system. Figure 50: LVD wiring diagram Figure 50 shows how to wire UPS to enable the LVD battery protector.

  • Page 80: Circuit Breaker Selectivity

    5. Circuit Breaker Selectivity When discussing power distribution, “selectivity " (also referred to as “discrimination”), it is the selection and arrangement of circuit breakers such that in the event of a short circuit or overload in the line, the circuit breaker closest to the short will be tripped and the upstream circuit breakers remain unaffected.
  • Page 81 as when a load with high-inrush current is turned on. In such a case you would only want the circuit breaker to trip if the current overload continued for an abnormal length of time. Using Figure 51 as an example, optimal discrimination of circuit breakers in series can be achieved by choosing them in such a way that when a short circuit occurs, the response of circuit breaker feeding the bypass line (CB01) line will be based on thermal (slower-acting) tripping, while the circuit breaker closest to the short circuit (CB05) will respond based on magnetic (instantaneous)

  • Page 82: Parallel Operation

    6. Parallel Operation Theory 6.1. When two or more UPS units are deployed in parallel, they are connected according to the decentralized static switch method (see below). Special technical solutions and control algorithms are implemented to synchronize all units in the system to prevent circulation of energy between them and to isolate a faulty unit from the common power bus.

  • Page 83: Parallel Communication

    To avoid such a hazard in decentralized mode, the static switches are synchronized by dedicated control communication to ensure that if one unit goes to Bypass mode, the rest of the units will also transfer to Bypass mode simultaneously. Parallel communication 6.1.2.

  • Page 84: Figure 54: Location Of The Parallel Comm

    Figure 54: 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.

  • Page 85: Epo And Parallel Operation

    EPO and parallel operation 6.1.2.1. An EPO switch can also be used if you intend to operate multiple UPS 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 / 120 Vac.

  • Page 86: Table 9: Cable Sets For Parallel Communication Between Upss

    When reading this section, refer also to the appropriate connection diagram: Figure 60, depending on the number of UPSs to be connected in parallel. To setup UPS's in parallel mode: 1. The UPS units should be located near to one another. They must be connected to one another in a ring configuration using the parallel communication cables.

  • Page 87: Figure 55: Common Dc Parallel Communication Cable

    Figure 55: Common DC Parallel communication cable Figure 56: 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 60). 5. Turn on one of the systems. This system will become the “master” system. Wait until the startup procedure is complete –...

  • Page 88: Figure 57: The System Menu Screen

    Figure 57: The System Menu screen The screen should display UPS ON, Normal mode message, and there should be no alarms present. If there are active alarms, resolve any problems before continuing. 6. Put the UPS in multisystem mode (System Menu > Setup > System > Multisystem mode).

  • Page 89: Figure 58: The Crown Icon Indicates The Master Ups

    Figure 58: The crown icon indicates the Master UPS A crown-shaped icon appears on the System Menu > Status > Modules screen of the Master UPS. 8. Put the slave systems in multisystem mode (System Menu > Setup > System Type > Multisystem mode).
  • Page 90 System 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. 11. 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 >...

  • Page 91: Figure 60: Connection Diagram For 2 Parallel Units

    Figure 60: Connection diagram for 2 parallel units UPS for 400 Vac Grid, Installation Guide, doc. rel. 3.0...

  • Page 92: Figure 61: Connection Diagram For 4 Units In Parallel

    Figure 61: Connection diagram for 4 Units in Parallel UPS for 400 Vac Grid, Installation Guide, doc. rel. 3.0...

  • Page 93: Maintenance Bypass For Parallel Systems

    Maintenance bypass for parallel systems 6.2.1. A maintenance bypass switch can be installed to enable a technician to perform maintenance work on the parallel UPSs without impacting the supply of power 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 61).

  • Page 94: Procedure: Maintenance Bypass Mode

    7. Procedure: Maintenance Bypass Mode In maintenance Bypass mode, the UPS does not to supply power to the load and 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.

  • Page 95: Circuit Breaker Layout

    Circuit Breaker Layout 7.1. Figure 62: Electrical setup UPS for 400 Vac Grid, Installation Guide, doc. rel. 3.0...

  • Page 96: Transferring The Ups To Maintenance Bypass Mode From Normal Mode

    Transferring the UPS to maintenance Bypass mode from 7.2. normal mode In normal operation, the UPS's ac circuit breakers are positioned as shown in Table 11 (see Figure 62 for CB locations). Table 11: Normal mode operating position of the circuit breakers Battery box input Rectifier ac input Bypass ac input...

  • Page 97: Table 12: Position Of The Cbs In Maintenance Bypass Mode

    The switches are now positioned as shown in Table 12 below. Table 12: Position of the CBs in maintenance Bypass mode Battery box input Rectifier ac input Bypass ac input UPS AC output Maintenance bypass (on battery box) (CB 2) (CB 3) (CB 5) (CB 6)

  • Page 98: Transferring The Ups Back To Normal Mode From Maintenance Bypass Mode

    Transferring the UPS back to normal mode from 7.3. maintenance Bypass mode In maintenance bypass operation, the UPS's ac circuit breakers are positioned as shown in Table 13 (see Figure 62 for CB locations). Table 13: Maintenance bypass operating position of the circuit breakers Battery box input Rectifier ac input Bypass ac input...

  • Page 99: Using The Ups With A Generator

    8. Using the UPS with a Generator At many sites a generator is used as a reserve source for feeding the UPS during mains power failure. 8.1. The Automatic Transfer Switch (ATS) At many sites a generator is used as a reserve source for feeding the UPS during mains power failure.

  • Page 100: Figure 65: Example Of An Ats Control Panel

    Figure 65 is an example of the control panel of an ATS. The upper part of the control panel consists of a mimic diagram showing the control flow. “NS = 0” means the normal source is not available. “NS = 1” means the normal source is available. “R”...

  • Page 101: Service And Repairs

    9. Service and Repairs IMPORTANT NOTICES 11. Any company whose technicians have been trained by Gamatronic and has received proper authorization and certification has Gamatronic’s permission to apply modifications to our products in North America. Modifications could entail adding or removing modules as well as performing service or maintenance.

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