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GE

7.4.8 Restore to normal operation after EPO (Emergency Power Off)

UPS panel after activation of EPO (Emergency Power Off) with Utility not available, i.e. complete shutdown of the UPS and LCD screen OFF.

In this case wait until Utility is again available, then proceed to restart the UPS as described below Points 1 through 3.

UPS panel after activation of EPO (Emergency Power Off) with Utility available.

All Contacts are open. Rectifier, Inverter and Static-Switch shutdown.

First operated unit

All other units of the system

1.Reset the EPO (Emergency Power Off) button.

• Press mute, to reset alarm and buzzer.

First operated unit

All other units of the system

2.Connect the Battery to all Units by closing the external Battery Switch(es) or Fuses.

3.Press “inverter off” ( O ) key on all Units.

•Rectifiers start with blinking LED.

•After pressing the “inverter off” key on the last unit of the parallel system, the output of all Units connect to Bypass Utility.

•The LCD screen shows: “LOAD ON BYPASS”.

First operated unit

All other units of the system

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OPM_SGS_USM_10K_40K_0US_V010.doc

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Operating Manual SG Series 10, 20, 30 & 40 kVA