GE Digital Energy SG 400 kVA - Reconnecting a Unit to Parallel System

Modifications reserved Page 60/86
OPM_SGS_USM_M40_M50_1US_V020.doc Operating Manual SG Series 400 & 500 kVA
7.3.5 Reconnect a Unit to a parallel system
1. Connect the Utility supply on the separated Unit.
• Press mute, to reset alarm and buzzer.
First operated unit All other units of the system
2. Close Q1 (Pos. I) on the separated Unit.
Rectifier starts automatically.
First operated unit All other units of the system
Proceed with step 3 only when the
LED 3 remains constantly lit on the
separated unit
3. Connect the Battery to the UPS of the
separated Unit by closing the external
Battery Breaker Release.
4. Press “inverter on” ( I ) key on the separated Unit.
After Soft-start of the Inverter, the Inverter connects automatically to the other Units of
the parallel system.
• The LCD must display on the main screen the status “LOAD ON INVERTER”.
First operated unit All other units of the system
END OF PROCEDURE
LED 3