Complete Parallel System Shut-Down - GE FGC TLE Series Manual

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
2. Open "Q1 - UPS Output switch" (Pos. O) on all Units.
Synoptic diagram of first unit
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.
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.
Modifications reserved
GE_UPS_USM_TLE_SUL_40K_M15_1US_V010.docx
END OF PROCEDURE
Synoptic diagram of other units
Synoptic diagram of other units
User Manual TLE Scalable Series 40 - 150 UL S1
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