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.
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
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 "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.
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_M62_1M0_2US_V010.docx
Critical Power
END OF PROCEDURE
Synoptic diagram of other units
Synoptic diagram of other units
User Manual TLE Series 625 - 750 - 1000 UL S2
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