g GEOPM_SGS_USM_10K_40K_0US_V010.doc 68/88 Operating Manual SG Series 10, 20, 30 & 40 kVA7.4.2 Maintenance system shutdown (Load supplied from Q2 on all Units)Initial status: Load supplied from all Inverters.First operated unit All other units of the system1. Press and hold “inverter off” ( O ) key on all Units, until the LED inside the Invertersymbol turns OFF.At no redundancy, the system will transfer to Utility supply.First operated unit All other units of the system2. Close Q2 (Pos. I) on all Units.Load is now supplied from Utility in parallel from Bypass and Manual Bypass Q2 of all Units.First operated unit All other units of the system3. Open Q1 (Pos. O) and press “total off” button on all Units.The Bypass of all Units will disconnect and all Rectifiers are shutdown.First operated unit All other units of the system4. Disconnect the Battery from all Units.• Wait 5 minutes for DC-Link Capacitors discharge.First operated unit All other units of the systemEnd of procedure
