Modifications reserved Page 73/86
OPM_SGS_USM_M40_M50_1US_V020.doc Operating Manual SG Series 400 & 500 kVA
7.4.4 Separate a Unit from the parallel system (System Redundancy)
Initial status: Load supplied from all Inverters.
First operated unit All other units of the system
1. Press and hold “inverter off” ( O ) key on the Unit to separate, until the LED turns OFF.
Load supplied from Inverter(s) of the other Unit(s) of the parallel system.
First operated unit All other units of the system
2. Open Q1 (Pos. O) and, only when the LED service check is ON, press “total off” button
on the Unit to separate.
• Press mute, to reset alarm and buzzer.
First operated unit All other units of the system
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