Modifications reserved
Page 75/86
OPM_SGS_USM_M40_M50_1US_V020.doc
Operating Manual
SG Series 400 & 500 kVA
7.4.5 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