Installation guide

Modifications reserved Page 67/82
OPM_SGS_USM_M10_M15_0US_V030.doc Operating Manual SG Series 100 – 120 - 150 kVA
7.4.2 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 system
1. Press and hold “inverter off” ( O ) key on all Units, until the LED inside the Inverter symbol
turns OFF.
At no redundancy, the system will transfer to Utility supply.
First operated unit All other units of the system
2. 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 system
3. 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 system
4. Disconnect the Battery from all Units.
• Wait 5 minutes for DC-Link Capacitors discharge.
First operated unit All other units of the system
END OF PROCEDURE