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POWER User Guide Release 1.8 December 2007 AMATRONIC LECTRONIC NDUSTRIES Har Hotzvim Industrial Park, 14 Hartom St., P.O.B. 45029, Jerusalem 91450, Israel Tel: 972-2-588-8222 Fax: 972-2-582-8875 Email: info@gamatronic.co.il Website: www.gamatronic.com...
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Information supplied by Gamatronic Electronic Industries Ltd. is believed to be accurate and reliable. However, no responsibility is assumed by Gamatronic Electronic Industries Ltd. for the use thereof nor for the rights of third parties which may be effected in any way by the use thereof.
Gamatronic Electronic Industries Ltd. User Guide TABLE OF CONTENTS SAFETY PRECAUTIONS ....................1 Do’s ........................1 Don’ts........................3 GENERAL FEATURES....................6 Major Subsystems....................7 2.1.1 Charger ....................7 2.1.2 Batteries ....................7 2.1.3 Inverter .....................7 2.1.4 Static Switch (ST.SW. BYPASS) ............. 7 2.1.5 Control System..................8 Control Panel ......................8 Power-On Self Tests ....................9...
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ALARM DRY CONTACTS .....................74 RS232 INTERFACE .......................76 SNMP AGENT (OPTIONAL)..................77 WIRELESS CONTROL (OPTIONAL) ................78 CONFIGURING THE POWER+ SA FOR 2- AND 3-PHASE USAGE......81 20.1 Input and output wiring for two-phase operation ...........83 20.1.1 Installing the P + SA for 2-phase usage........84 OWER POWER+ SA SPECIFICATIONS...................87...
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Gamatronic Electronic Industries Ltd. User Guide LIST OF TABLES Table 4-1: Main Menu options....................32 Table 15-1: Electrical ratings and external wiring requirements ........64 Table 15-2: Required wire ratings ..................64 Table 15-3: UL-required circuit breaker ratings..............64 Table 20-1: 2- and 3-phase configuration – electrical details..........81...
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User Guide Gamatronic Electronic Industries Ltd. The P OWER TAND LONE POWER + SA User Guide (UL), Release 1.8...
Gamatronic Electronic Industries Ltd. User Guide 1. SAFETY PRECAUTIONS The POWER + SA UPS system is designed for industrial applications and harsh environments. Nevertheless the POWER + SA UPS system is a sophisticated power system and should be handled with appropriate care, following these guidelines.
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User Guide Gamatronic Electronic Industries Ltd. AVERTISSEMENT ! - CIRCUITS ACTIVÉS PENDANT L'ENTRETIEN : Les panneaux électroniques et les circuits de panneau de commande demeurent activés pendant des procédures de service. Précautions appropriées de prise! ATTENTION - AVERTISSEMENT - RISQUE DE DÉCHARGE ÉLECTRIQUE MORTELLE :...
Gamatronic Electronic Industries Ltd. User Guide Don’ts • Do not open the cover of the UPS or the battery cabinets under any circumstances. All UPS panels and doors should be closed. • Do not insert any objects through the ventilation holes.
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User Guide Gamatronic Electronic Industries Ltd. ATTENTION - la PRISE DE TERRE AU SOL ESSENTIELLE AVANT DE RELIER L'APPROVISIONNEMENT Mettre L'UPS à la terre avant de le relier à l'approvisionnement à A.C. ATTENTION - AVERTISSEMENT - RISQUE DE DÉCHARGE ÉLECTRIQUE ! N'ENLEVEZ PAS LA COUVERTURE ! N'enlevez pas la couverture D'UPS.
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Gamatronic Electronic Industries Ltd. User Guide AVERTISSEMENT : RISQUE DE DOMMAGES GRAVES À L'UPS ! ! ! CE SYSTÈME EMPLOIE LA LIGNE NEUTRE POUR L'OPÉRATION. PAR CONSÉQUENT, ON INTERDIT STRICTEMENT DE RELIER CE SYSTÈME A LA SOURCE (AC) DE COURANT ALTERNATIF SANS CONDUCTEUR (NUL) NEUTRE ! ! L'ÉCHEC À...
User Guide Gamatronic Electronic Industries Ltd. 2. GENERAL FEATURES The Power + SA Uninterruptible Power Supply (UPS) employs Pulse Width Modulation (PWM) and is controlled by a micro-controller, to provide reliable, sophisticated protection against every type of line fluctuation, including interruption of the mains (electrical) supply.
Gamatronic Electronic Industries Ltd. User Guide Major Subsystems The device consists of the following modules: 2.1.1 Charger + SA includes a 3-phase charger with PFC OWER 2.1.2 Batteries The P + SA battery bank is used as a backup in the event that the utility ac OWER input fails.
User Guide Gamatronic Electronic Industries Ltd. 2.1.5 Control System The control system performs the following functions: • Tests input, bypass, inverter, battery voltage, output current, input/output signal frequency, and temperature. • Manages the static switch and charger voltage during battery tests.
Gamatronic Electronic Industries Ltd. User Guide Power-On Self Tests The UPS automatically performs a series of diagnostic tests when initially powered Measurement The user can receive real-time information regarding the unit’s operation and condition simply by pressing the appropriate status button. The real-time results are displayed on the front panel, as shown in Figure 2-3.
User Guide Gamatronic Electronic Industries Ltd. The system compiles a listing of up to 200 extraordinary events of the mains, unit and load during operation. This data is written to the log file and can be accessed easily at any time through the display panel, computer, or via modem. This information is extremely useful for maintenance and analyzing performance statistics.
Gamatronic Electronic Industries Ltd. User Guide 3. OPERATING MODES The P + SA is installed between the power mains and your load devices, and OWER supplies ac electrical power to your equipment. The POWER + SA has three automatic modes of operation: •...
User Guide Gamatronic Electronic Industries Ltd. Battery Mode If the input ac power fails or the voltage drops below an acceptable level, the UPS operates in backup mode. In backup mode the load continues to receive power from the inverters, but the dc input to the inverter is taken from the batteries, instead of from the rectifier.
Gamatronic Electronic Industries Ltd. User Guide Bypass Mode In bypass mode the load receives power directly from the ac input via the static switch. Whenever the inverters cannot provide power to the load, for example, due to an overload or a short-circuit in the load, the UPS supplies the load directly from the ac input, bypassing the inverter.
Lets you display other current readings • Lets you modify UPS settings and operating mode The control panel is for use by the end-user and the service technician. Figure 4-1: The POWER+ SA control panel POWER + SA User Guide (UL), Release 1.8...
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Gamatronic Electronic Industries Ltd. User Guide On/Off Button To turn the UPS on, press the button twice. To turn the UPS off, press the button twice. Navigation Keypad The control panel’s keypad consists of three buttons. • The UP/DOWN key is used to navigate through screens and browse Event Log.
User Guide Gamatronic Electronic Industries Ltd. The P + SA Display Screen OWER The display screen on the P + SA control panel shows the current operating OWER mode and related critical data. There are several distinct data screens that can be shown on the P + SA display screen.
Gamatronic Electronic Industries Ltd. User Guide NORMAL MODE In Normal mode, the Main Screen displays the message: UPS ON, NORMAL MODE. The AC INPUT and NORMAL LEDs are lit. shows the Main Screen as you will see it most of the time, in Normal Mode.
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User Guide Gamatronic Electronic Industries Ltd. In the event of an overload condition, an icon indicating this appears in the lower right quadrant of the Main Screen, the alarm LED ligits, and the audible alarm sounds. POWER + SA User Guide (UL), Release 1.8...
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Gamatronic Electronic Industries Ltd. User Guide BATTERY MODE When the UPS is operating in battery mode, the Main Screen first displays the message: UPS ON, BATTERY MODE. As the battery discharges, the number of “stripes” on the battery icon decreases.
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User Guide Gamatronic Electronic Industries Ltd. When the “BATTERY LOW” message appears, there are only a few seconds before the battery is exhausted. To avoid losing information, you should at this time save your data and perform an orderly shutdown of any computers connected to the UPS, if you have not already done so.
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Gamatronic Electronic Industries Ltd. User Guide • When auto-restart is ENABLED, the Main Screen shows the UPS ON message. When ac power is restored, the UPS starts up automatically. POWER + SA User Guide (UL), Release 1.8...
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User Guide Gamatronic Electronic Industries Ltd. BYPASS MODE In Bypass mode, the Main Screen displays the message: ∗ UPS ON, BYPASS MODE. The AC INPUT , BYPASS, and ALARM LEDs are lit. After 60 seconds in Bypass Mode the audible alarm sounds.
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Gamatronic Electronic Industries Ltd. User Guide UPS OFF Off mode is invoked by pressing the On/Off button twice when the UPS is operating. The Off screen displays the message: UPS OFF, NO OUTPUT. Off mode can also be invoked automatically in the event of an extended ac power outage, if auto-restart is disabled.
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User Guide Gamatronic Electronic Industries Ltd. Off mode can also be invoked remotely, through the RS232 data connection. POWER + SA User Guide (UL), Release 1.8...
Gamatronic Electronic Industries Ltd. User Guide 4.2.2 Status Screens From the Main Screen, by means of the button, you can access several screens that provide current UPS status information: • UPS Profile screen • Ac Output screen • Ac Input screen •...
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User Guide Gamatronic Electronic Industries Ltd. UPS Profile screen 1 UPS Profile screen 2 UPS Profile screen 3 POWER + SA User Guide (UL), Release 1.8...
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Gamatronic Electronic Industries Ltd. User Guide AC OUTPUT SCREEN To see the current status of the UPS’s ac output, from the Main Screen, press twice. The checkmark indicates that the ac voltage of each output phase is within acceptable range; otherwise an “X” is displayed instead of the checkmark.
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User Guide Gamatronic Electronic Industries Ltd. BYPASS SCREEN To see the current status of the Bypass, from the Main Screen, press four times. The checkmark indicates that the voltage of all three phases at the Bypass Switch is within an acceptable range. If the voltage of any of the phases is out of range, an X is displayed instead of the checkmark.
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Gamatronic Electronic Industries Ltd. User Guide INVERTER SCREEN To display the current status of the inverter, from the Main Screen, press five times. If the inverter output is phase-synchronized with the Bypass input, the message SYNC OK is shown; otherwise, SYNC FLT (synch fault) appears.
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User Guide Gamatronic Electronic Industries Ltd. BATTERY SCREEN To see the current battery status and voltages, from the Main Screen, press times. The battery status can be: • BATTERY OK, • BATTERY LOW, or • BATTERY FLT (means the battery failed the latest battery test).
Gamatronic Electronic Industries Ltd. User Guide 4.2.3 The P + SA Main Menu OWER Through the use of the control panel buttons, the user can: • Modify UPS settings, • Perform a manual battery test, • Move the UPS to bypass mode or back to inverter mode, •...
User Guide Gamatronic Electronic Industries Ltd. Table 4-1: Main Menu options Event Log The event log displays current alarm conditions and lists a history of significant events. See page 35. Set Clock Lets you set the date and time used by the UPS. See section 9.1.
Gamatronic Electronic Industries Ltd. User Guide 5. DAILY OPERATION + SA Start-up OWER This section explains how to start-up the P + SA after a shutdown. OWER You are beginning the process from the UPS OFF NO OUTPUT screen. Press the ON/OFF button twice.
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User Guide Gamatronic Electronic Industries Ltd. + SA Shutdown OWER This section describes the shutdown procedures for the UPS if you want to shut it down for a period of time during which the load devices will not be operating.
Gamatronic Electronic Industries Ltd. User Guide 6. THE EVENT LOG The event log is really a combination of two functions: • A display of active alarms • A history of important events that occurred to the UPS. Alarms In the event of an alarm (the audible alarm sounds or the red alarm light on the...
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User Guide Gamatronic Electronic Industries Ltd. Event log entries To see the latest entry in the Event Log, from the Active Alarm display press Ent. To scroll backwards to previous entries, press the Down button. To scroll forward again to later entries, press the Up button.
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Gamatronic Electronic Industries Ltd. User Guide Resetting the event log To erase the current contents of the event log: From the Main Screen, press the Ent button to display the Main Menu. On the Main Menu, select Advanced Options > Technicians Menu >...
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Action: After a power outage, this message can be ignored. This message could also be the result of an overload. Reduce the load on the UPS; this may resolve the problem. If not, contact Gamatronic Technical Support. Meaning: The battery will soon be fully discharged.
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Gamatronic Electronic Industries Ltd. User Guide Meaning: The voltage of at least one of the Bypass phases is out of range, and a transfer to Bypass mode cannot be made at this time. Additional indications: The alarm LED lights up and the audible alarm BYPASS NOT READY sounds.
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User Guide Gamatronic Electronic Industries Ltd. Meaning:One or more of the ac phases into the Charger is out of range. Additional indications The alarm LED lights up and the audible alarm ONE PHASE FAULT sounds. Action: This is likely to be due to a problem with the input ac supply.
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Gamatronic Electronic Industries Ltd. User Guide LOG MESSAGES Log Entry Explanation AC LINE FAULT No input voltage to charger. AC LINE OK Input voltage to charger has been restored BATT. TEST FAIL The last battery test failed. BATT. TEST.OK The last battery test was successful (following a failed battery test).
User Guide Gamatronic Electronic Industries Ltd. 7. BATTERY TESTS Automatic battery test The P + SA is programmed to perform a battery test automatically every two OWER weeks. Manual battery test To perform a battery test outside of the above-stated schedule (a “manual” battery test): From the Main Screen, press the Ent button to display the Main Menu.
Gamatronic Electronic Industries Ltd. 8. FIRST-TIME SETUP Cable Connections Only an authorized electrician may wire the UPS power connections. Do not attempt to wire any of the power connections on your own. SE REQUIRED WIRING SIZE ACCORDING TO , NSI/NFPA 70 ( U.S.),...
Gamatronic Electronic Industries Ltd. Installation and Start-Up Sequence To start the UPS: Attach the load device, if desired, but do not turn it on until you have set the UPS output voltage, as described below. Turn on the circuit breakers for the ac input, the Bypass input, and the Battery.
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Gamatronic Electronic Industries Ltd. Operation To turn the UPS on, press the ON/OFF button twice and wait a few seconds. The following screen is displayed. The “Ac Input” and “Normal” LEDs should be lit. Turn on the Ac Output circuit breaker.
Gamatronic Electronic Industries Ltd. 9. SETTING SYSTEM PARAMETERS There are several system parameters that can be modified as needed. In general, you only need set these parameters once, during the first-time setup of the P + SA. OWER Setting the system clock The system clock is used in recording entries to the P + SA event log.
Gamatronic Electronic Industries Ltd. Setting screen contrast The screen contrast function controls the visibity of the message text against the screen background. The default setting of 144 is usually satisfactory, but you can modify the default setting between the values of 0 and about 210, if needed.
Gamatronic Electronic Industries Ltd. Modifying the output ac voltage Do not change the output voltage unless you are sure that this is required by your load devices and that the new output voltage will not damage the load devices. Two types of adjustments can be made to the output voltage: •...
Gamatronic Electronic Industries Ltd. After pressing Ent the screen looks like this: The UPS fans may stop working for a moment. They will start up again by themselves after the voltage adjustment is complete. Press Esc to return to the Main screen.
Gamatronic Electronic Industries Ltd. You can continue to adjust another phase, or press Esc to return to the main screen. Setting the dc voltage The P + SA must be informed of the dc (battery) voltage. Before setting the dc...
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Gamatronic Electronic Industries Ltd. Following the same procedure as for the positive voltage, set the negative voltage. When finished, press Esc to return to the Main Screen. POWER + SA User Guide (UL), Release 1.8...
Gamatronic Electronic Industries Ltd. 10. BYPASS OPTION ACTIVATION / DEACTIVATION The P + SA should not be operated without the bypass option except under the OWER supervision of a qualified technician. Operation of the P + SA without a bypass source can result in damage to the OWER equipment (load devices) connected to the UPS.
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Gamatronic Electronic Industries Ltd. Read the message and press Ent to continue, or Esc to exit. A message displays the current state of the bypass option: OFF or ON. Press Ent to change the bypass status or Esc to exit.
Gamatronic Electronic Industries Ltd. 11. AUTOMATIC RESTART In the event of a prolonged power outage, the UPS turns itself off automatically after the batteries have been exhausted. You can instruct the P + SA to start up OWER automatically when the ac power is restored. This feature is called automatic restart.
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Gamatronic Electronic Industries Ltd. The new automatic restart status is displayed. Press Esc to return to the Main Screen. POWER + SA User Guide (UL), Release 1.8...
Gamatronic Electronic Industries Ltd. 12. MISCELLANEOUS FUNCTIONS This section describes infrequently used but important features. Manually entering or leaving bypass mode When the ac input power is normal, it is handled by the UPS in one of two ways: •...
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Gamatronic Electronic Industries Ltd. On the Main Screen, the message “Manual Bypass” appears in the lower right quadrant. The audible alarm sounds after 60 seconds. POWER + SA User Guide (UL), Release 1.8...
Gamatronic Electronic Industries Ltd. 13. IN THE EVENT OF AN AC POWER OUTAGE If a power outage occurs: The Alarm LED lights up and the audible alarm sounds. The UPS continues operating, drawing its power from the batteries. The P...
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Gamatronic Electronic Industries Ltd. When the “BATTERY LOW” message appears, there are only a few seconds before the battery is exhausted. Now is the time to shut down any computers connected to the UPS if you have not already done so.
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Gamatronic Electronic Industries Ltd. • If Auto-restart is ENABLED, the Main Screen shows the UPS ON message. When ac power is restored, the UPS starts up automatically. POWER + SA User Guide (UL), Release 1.8...
Gamatronic Electronic Industries Ltd. 14. TROUBLESHOOTING This section explains what to do in the event of an alarm condition, or when any other “out of the ordinary” event occurs on the UPS. Alarm sounds and/or alarm LED lights up Go to the Event Log and look at the Active Alarm Display to determine the nature of the alarm.
Do not attempt to install the system if damage is apparent. If any damage is noted, file a damage claim with the shipping agency within 24 hours and contact your Gamatronic authorized service representative to inform them of the damage claim and the condition of the equipment.
Gamatronic Electronic Industries Ltd. 15.2.1 Installation Considerations Use the shortest possible output distribution cable runs at the installation site, consistent with logical equipment arrangements and in compliance with NEC and local electrical codes. Allow space for additional future equipment. The recommended ambient temperature for operation is 20-30°C (68-86°F).
The values shown in Table 15-2 conform to UL requirements. Table 15-1: Electrical ratings and external wiring requirements RATINGS & EXTERNAL WIRING REQUIREMENTS FOR THE POWER+ SA, 3:3 PHASE, 10 kVA, 60 Hz GE MODEL CONDUCTOR VOLTAGE CURRENT...
Gamatronic Electronic Industries Ltd. 15.3 Installation Process 15.3.1 Safety guidelines Only an authorized electrician may perform installation. Do not attempt to perform any of the following instructions on your own. CAUTION! Electrical codes may vary according to location. Observe all local, state, and federal electrical codes for acceptable external wiring practices.
Gamatronic Electronic Industries Ltd. 15.3.2 Installing the P + SA OWER For 2-phase use, follow the instructions in section 20.1.1 beginning on page 84, rather than those in this section. Before continuing, read carefully the preceding part of this chapter beginning from section 15.2 “Site Preparations”...
Gamatronic Electronic Industries Ltd. Figure 15-3: UPS rear panel view, with protective cover removed Run the ac output cable through the cable holder labeled “ac output” in Figure 15-3 on page 67. Connect the cable to the ac output terminals, also detailed in Figure 15-3.
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Gamatronic Electronic Industries Ltd. Run the two ac input cables through the cable holders labeled “ac input” and “Bypass ac input” in Figure 15-3 on page 67. Connect the cables to their respective input terminals (“Rectifier ac input” and “Bypass ac input”), also shown in Figure 15-3.
Gamatronic Electronic Industries Ltd. 15.3.3 Battery installation Figure 15-4: Batterybox - front right view Figure 15-5: Battery box - front view Figure 15-6: Battery box, front view, front cover removed POWER + SA User Guide (UL), Release 1.8...
Gamatronic Electronic Industries Ltd. Figure 15-7: Battery box circuit breaker and terminals Figure 15-8: Battery terminals on the P + SA rear panel OWER POWER + SA User Guide (UL), Release 1.8...
Gamatronic Electronic Industries Ltd. To install the battery and prepare it for initial UPS start-up: Verify that the battery circuit breaker is OFF and that the UPS is OFF, and that there is no power on the UPS cables. Position the battery box as described in section 15.2.2, “Equipment Location”, on page 63.
Gamatronic Electronic Industries Ltd. 15.5 First-Time Startup and Verification Test: Turn ON the UPS input circuit breaker. Verify that the UPS output circuit breaker and the battery circuit breaker on the battery cabinet both remain OFF. Press twice on the UPS ON/OFF button on the + SA front panel.
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Gamatronic Electronic Industries Ltd. After verifying that the load is drawing power from the UPS, press twice on the battery test button. Verify that the the “battery test failed icon does not appear on the LCD screen, and that the Alarm LED is OFF.
Gamatronic Electronic Industries Ltd. 16. ALARM DRY CONTACTS The rear panel of the UPS contains a standard RS232 port labeled ALARM. This port is an interface to the Alarm Dry Contacts. The Alarm Dry Contact port is shown below. The Alarm Dry Contacts can be used to notify a computer or another system when certain events take place on the P + SA UPS system.
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Gamatronic Electronic Industries Ltd. The following figure is a schematic of the Dry Alarm Contacts. POWER + SA User Guide (UL), Release 1.8...
In order to use the RS232 connection to a computer, monitoring software must be installed on the user’s PC. The monitoring software can be ordered from Gamatronic. The PIN assignment for this 9-pin connector is shown in the diagram below.
Gamatronic Electronic Industries Ltd. 18. SNMP AGENT (OPTIONAL) The SNMP agent enables monitoring, management, control, and orderly shutdown of the UPS via the Internet protocol SNMP. There are two types of SNMP agents: • External Adaptor • Internal Card The SNMP agent communicates with the RS232 interface of the UPS which: •...
(control center, technician, etc.) detailing the faults. WING can operate through a variety of parallel connections, protocols and applications at the same time. It is compatible with all Gamatronic products, as well as with the products of many other manufacturers.
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– all via any standard mobile cellular phone. The user may communicate with the WING by either using a mobile cellular phone or the dedicated GeMSi application provided by Gamatronic. A service technician can perform the following activities using his mobile phone: •...
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Gamatronic Electronic Industries Ltd. WING Optional Configurations POWER + SA User Guide (UL), Release 1.8...
Gamatronic Electronic Industries Ltd. 20. CONFIGURING THE POWER+ SA FOR 2- AND 3-PHASE USAGE Your POWER + SA UPS can be configured to operate with 2- or 3-phase input and output. The electrical details for the various possibilities are shown in Table 20-1. A cable connection diagram for 2- and 3-phase operation is shown in Figure 20-1. Detailed instructions for 2-phase wiring are in section 20.1.
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Gamatronic Electronic Industries Ltd. This page left blank deliberately. POWER + SA User Guide (UL), Release 1.8...
Gamatronic Electronic Industries Ltd. 20.1 Input and output wiring for two-phase operation As shown in Table 20-1, there are two options for two-phase operation: • Where the two input phases to the UPS have a phase shift of 120°. In this case, the effective input and output voltage between the phases is 208 Vac.
Gamatronic Electronic Industries Ltd. 20.1.1 Installing the P + SA for 2-phase usage OWER Follow the following steps to Install the UPS and prepare it for initial start-up: To install the UPS and prepare it for initial start-up: Verify that the external circuit breakers in the mains electrical cabinet for UPS input, UPS output, and bypass are OFF.
Gamatronic Electronic Industries Ltd. Figure 20-4: UPS rear panel view, with protective cover removed Run the ac output cable through the cable holder labeled “ac output” in Figure 20-4 on page 85. Connect the cable to the ac output terminals, also detailed in Figure 20-4.
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Gamatronic Electronic Industries Ltd. respective input terminals (“Rectifier ac input” and “Bypass ac input”), also shown in Figure 20-4. Use the appropriate grade of wire as specified in Table 15-1 on page 64, or according to local electrical codes. Run the batteries cable through the cable holder labeled “Batteries” in Figure 20-4.
Gamatronic Electronic Industries Ltd. 21. POWER+ SA SPECIFICATIONS POWER+ SA UPS 3X208 V+N 2X120 V+N Topology True on-line battery, double conversion Model 10 kVA Input Voltage (V) 3x208 V+N 2x120 V+N Voltage range (%) – 27% and + 20% Current 28A max.
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Jerusalem 91450, Israel Tel-Aviv Sales Office 34 Habarzel Street, Ramat Hachayal, Tel-Aviv 69710 Israel Tel: +972-3-6499940 Fax +972-3-6449791 Gamatronic (UK) Ltd. Gamatronic House, Stephenson Court, Priory Business Park, Bedford MK44 3US, United Kingdom Tel: +44 (0)1234 831111 Fax: +44 (0)1234 831114 email: info@gamatronic.net...