Critical Power
Modifications reserved
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GE_UPS_USM_TLE_SUL_M62_1M0_2US_V010.docx
User Manual
TLE Series 625 - 750 - 1000 UL S2
7.3.4
Complete Parallel System shut-down
NOTE !
The UPS Parallel System and the Load have to be completely powered down.
If eBoost™ option is available, make sure that eBoost™ 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 “External Battery
Protections”.
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.
