Modifications reserved
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OPM_SGS_USM_M40_M50_1US_V020.doc
Operating Manual
SG Series 400 & 500 kVA
7.4.8 Restore to normal operation after
EPO (Emergency Power Off)
UPS panel after activation of
EPO
(Emergency Power Off)
with
Utility
not
available, i.e. complete shutdown of the
UPS and LCD screen OFF.
In this case wait until
Utility
is again
available, then proceed to restart the UPS
as described below Points 1 through 3.
UPS panel after activation of
EPO (Emergency Power Off)
with
Utility
available.
•
All
Contacts
are open.
Rectifier
,
Inverter
and
Static-Switch
shutdown.
The Battery remains connected to the UPS in case of configuration without external
Battery Breaker Release!
First operated unit
All other units of the system
1. Reset the EPO (Emergency Power Off) button
.
•
Press
mute
, to reset
alarm and buzzer
.
First operated unit
All other units of the system
2. Press
“
inverter off
”
( O ) key on all Units
.
•
Rectifiers
start with blinking
LED
.
•
After pressing the “
inverter off”
key on the last unit of the parallel system, the output
of all
Units
connect to
Bypass Utility
.
•
The
LCD screen
shows:
“LOAD ON BYPASS”.
First operated unit
All other units of the system
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