Modifications reserved
Page 82/90
GE_UPS_USM_TLE_SUL_40K_M15_1US_V010.docx
User Manual
TLE Scalable Series 40 - 150 UL S1
7.3.4
Complete Parallel System shut-down
NOTE !
The
UPS Parallel System
and the
Load
have to be completely powered down.
Make sure that
SEM Operation Mode
is disabled before starting this procedure.
If
IEMi
option is available, make sure that
IEMi Operation Mode
is disabled before
starting this procedure.
Initial status:
Load supplied from all Inverters of the Parallel
System
.
1. Perform the command
“
System shutdown
”
on anyone of
the units
.
Perform the command
“System shutdown
” through
the screen:
Commands 1 / System shutdown /
Shutdown
.
•
Load
is disconnected from
UPS Parallel System.
•
Rectifiers
and
Inverters
are shut down and all
Contactors
are opened.
•
LED ALARM
is lit.
Synoptic diagram of first unit
Synoptic diagram of other units
2. Open “Q1 - UPS Output switch” (Pos. O) on all Units
.
Synoptic diagram of first unit
Synoptic diagram of other units
3. Disconnect on all Units the Battery from the UPS by opening the
“
Battery Cabinet Breaker
”
(Pos. O).
Press
“MUTE”
key to reset
Acoustical Alarm
.
LED ALARM
remains lit.
•
Wait
5 minutes
for DC-Link Capacitors discharge. Use the
MEASURES/Rectifier
screen to ensure that the
DC-link1 and DC-link 2
voltage has reached
10Vdc
.
4. Disconnect the Utility supply on all Units
.
END OF PROCEDURE
DANGER !
It will take 5 minutes for the DC capacitors to discharge.
Open only the front door, do not open any other part of the UPS.
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