GE 400 User Manual

Also see for 400 Series: Maintenance manual User manual Instruction Instructions Instructions

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GE 400 User Manual Manual pdf 56 page image

Modifications reserved Page 56/79OPM_SGS_USM_M40_M50_2US_V010.doc User Manual SG Series 400 & 500 UL S27.2 PROCEDURES FOR SG Series 400 & 500 PARALLEL SYSTEM AND PARALLELSYSTEM WITH COMMON BATTERY7.2.1 SG Series 400 & 500 Parallel System start-upWARNING !Before proceeding to Turn ON the UPS System, ensure that the AC and DC externalisolators are OFF (Pos. O), and prevent their inadverted operation.Ensure that the output load distribution can be powered and all the output isolatorsare open (Pos. O).Open the front door on all UPS units and make sure that:• All the connections to the input/output bus bars of the UPS have been made correctly.• The safety screens are fixed in their position.• The UPS Output Switch Q1, Manual Bypass Switch Q2 (option) and the External Battery Switch orFuses must be open (Pos. O).LEDs on Synoptic DiagramSGS_400-500_S2_Switches Q1-Q2_01Q10 OFF I ONQ20 OFF I ONQ1 UPS Output SwitchQ2 Manual Bypass switch (option)LED 1 Utility Rectifier OKLED 2 Utility Bypass OKLED 3 Rectifier ONLED 4a Discharging BatteryLED 4b Charging BatteryLED 5 Inverter availableLED 6 Inverter ONLED 7 Q1 closedLED 8 Automatic Bypass ONLED 9 Manual Bypass Q2 ON (option)LED 10 Load on UPSKey Key Key LED LED LEDInverter ON Inverter OFF Load Off Stop Operation Alarm Operation1. Switch-ON the Utility Voltage, on all UPS units, from the input distribution (both rectifier andbypass if separated).At this stage the electronic power supply is switched ON.Overall test resultsTest1 OK Test7 OKTest2 OK Test8 OKTest3 OK Test9 OKTest4 OK Test10 OKTest5 OK Test11 OKTest6 OKThe UPS performs a SELFTEST.A successful termination of the tests will be indicated with Overalltest results “OK”.Commissioning cannot be continued should one or more testsresult to be negative.Please contact in this case your Service Center.With “Overall test results - OK” the Synoptic Diagram is displayed.LED 1 (Utility Rectifier OK) and LED 2 (Utility Bypass OK) must be ON.The buzzer sounds, press the “MUTE” key to reset acoustical alarm. LED Alarm remains lit.Continue ►