GE Industrial Solutions TLE Series 225-500 User Manual - Manual (Page 59)

Critical Power
Modifications reserved Page 59/90
GE_UPS_USM_TLE_SUL_M22_M50_1US_V010.docx User Manual TLE Series 225 - 500 UL S1
7.1.4 Complete UPS shut-down
NOTE !
Follow this procedure only in case the UPS system and the Load must be
completely powered-down.
If eBoost™ option is available, make sure that eBoost™ Operation Mode is disabled
before starting this procedure.
Initial status:
Load supplied from Inverter.
1. Perform the command “System shutdown”.
Perform the command “System shutdown” through the
screen: Commands 1 / System shutdown / Shutdown.
 Load is disconnected from UPS.
 Rectifier and Inverter are shut down and all contactors are
opened.
 LED 1 (Rectifier) and LED 2 (Inverter) are OFF.
 LED ALARM is lit.
2. Open UPS output switch Q1 (Pos. O).
3. Disconnect the Battery from the UPS by opening, if present, the switch CB3 (option) and then
the external Battery protections.
NOTE !
Before performing the next procedure 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.
Press “MUTE” key to reset Acoustical Alarm.
LED ALARM remains lit.
4. Disconnect the Utility from the input distribution.
 All LEDs are OFF.
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.