g GEOPM_SGS_USM_10K_40K_0US_V010.doc 58/88 Operating Manual SG Series 10, 20, 30 & 40 kVA7.3.4 Separate a Unit from the parallel system (System Redundancy)Initial status: Load supplied from all Inverters.First operated unit All other units of the system1. Press and hold “inverter off” ( O ) key on the Unit to separate, until the LEDturns OFF.Load supplied from Inverter(s) of the other Unit(s) of the parallel system .First operated unit All other units of the system2. Open Q1 (Pos. O) and, only when the LED service check is ON, press “total off”button on the Unit to separate.First operated unit All other units of the system3. Disconnect the Battery, in case of External Battery, from the Unit to separate.• Wait 5 minutes for DC-Link Capacitors discharge.4. Disconnect the Utility supply from the separated Unit.First operated unit All other units of the systemEnd of procedureFor any further intervention could nearest Service Center.