GE Industrial Solutions TLE Series 225-500 User Manual - Manual (Page 61)

Critical Power
Modifications reserved Page 61/90
GE_UPS_USM_TLE_SUL_M22_M50_1US_V010.docx User Manual TLE Series 225 - 500 UL S1
7.1.6 Restore to normal operation after EPO (Emergency Power Off)
NOTE !
Make sure the UPS to be status of the activation of EPO, i. e. Q1 and CB3 (option)
closed, Q2 open and external Battery protection connected.
If eBoost™ option is available, make sure that eBoost™ Operation Mode is disabled
before starting this procedure.
View of the Synoptic Diagram after activation of
EPO (Emergency Power Off) with Utility available:
 All Contactors are open.
 Rectifier, Inverter, Booster/Battery charger and
Static-Switch shut-down.
 LED ALARM is lit.
1. Reset the EPO (Emergency Power Off) button.
 Press “MUTE” key to reset Alarm and Acoustical Alarm.
 LED ALARM remains lit.
2. Perform the “Inverter OFF” command.
Perform the “Inverter OFF” command from the screen:
Commands 1 / Inverter / OFF.
 Load is transferred to Utility by Automatic Bypass.
 Rectifier starts automatically.
LED 1 (Rectifier) blinking, indicates Soft-start.
 At the end of Rectifier Soft-start the LED 1 (Rectifier) remains lit.
The Synoptic Diagram must display the status “LOAD
SUPPLIED BY AUTOMATIC BYPASS”.
3. Insert the inverter performing the command “Inverter ON".
Before performing this procedure make sure that the LED 1 (Rectifier) and LED 3 (Booster/Battery
charger) are lit.
Perform the “Inverter ON” command from the screen:
Commands 1 / Inverter / ON.
 Soft-start of Inverter indicated with blinking LED 2 (Inverter).
 At the end of Soft-start the LED 2 (Inverter) remains lit.
 The Load is automatically transferred from Automatic Bypass to Inverter.
 LED ALARM turns Off and the LED LOAD PROTECTED must be lit.
The Synoptic Diagram must display the status “LOAD
SUPPLIED BY INVERTER”.
END OF PROCEDURE