GE Industrial Solutions TLE Series 225-500 User Manual - Manual (Page 85)

Critical Power
Modifications reserved Page 85/90
GE_UPS_USM_TLE_SUL_M22_M50_1US_V010.docx User Manual TLE Series 225 - 500 UL S1
7.3.8 Restore to normal operation after EPO (Emergency Power Off)
NOTE !
Make sure the all units of the Parallel System 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, on all UPS units,
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 remain lit.
2. Perform the “Inverter OFF” command on all Units.
Perform the “Inverter OFF” command from the screen:
Commands 1 / Inverter / OFF.
 Rectifiers start automatically.
LEDs 1 (Rectifier) blinking, indicates Soft-start.
 After performed the “Inverter OFF” command on the last unit of the Parallel System, the output of all
Units connect to Automatic Bypass.
The Synoptic Diagram, on all UPS units, must display the status “LOAD SUPPLIED BY AUTOMATIC BYPASS”.
Synoptic diagram of first unit Synoptic diagram of other units
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