g
GE
OPM_SGS_USM_10K_40K_0US_V010.doc
68/88
Operating
Manual
SG Series
10, 20, 30 & 40 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