Modifications reserved
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OPM_SGS_USM_M22_M30_2US_V010.doc
User Manual
SG Series 225 & 300 UL S2
7.2.7 Restore to normal operation after “Load Off”
NOTE !
Make sure the all
Units
of the
Parallel System
to be status of the activation of “
Load
Off”
, i. e.
UPS Output Switches Q1
closed (Pos. I),
Manual Bypass Switches Q2 (option)
open (Pos. O) and
External Battery Switch or Fuses
connected (Pos. I).
If
eBoost™
option is available, make sure that
eBoost™ Operation Mode
is disabled
before starting the shutdown procedure.
View of the
synoptic diagram
, on all UPS units, after
pressing the
“
Load Off
”
key.
•
All
Contactors
are open.
•
Rectifier
,
Inverter
and
Static-Switch
shutdown.
•
LED Alarm
is lit.
`
Home\Commands
COMMANDS
RESET TOTAL OFF
REQUEST
TOTAL
OFF
V
1. Reset “Load Off” of the Parallel System.
Restore the command
“Load Off”
, on anyone of the
Parallel Units
, by entering the screen:
COMMANDS /
RESET TOTAL OFF
•
The
Load
is supplied by the
Utility
through the
Automatic Bypass
of all
Units
.
•
Rectifiers
start automatically, blinking
LED 3 (Rectifier
ON)
indicates Soft-start.
•
At the end of
Rectifier
Soft-start, the
LED 3 (Rectifier ON)
remains lit.
•
LED Alarm
is lit.
The
Synoptic Diagram
, on all UPS units, must display the status
“
LOAD SUPPLIED BY AUTOMATIC BYPASS
”
.
Synoptic Diagram of first unit
Synoptic Diagram of other units
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