GE Industrial Solutions TLE Series 225-500 User Manual - Manual (Page 58)

Critical Power
Modifications reserved Page 58/90
GE_UPS_USM_TLE_SUL_M22_M50_1US_V010.docx User Manual TLE Series 225 - 500 UL S1
7.1.3 From Manual Bypass Q2 to normal function VFI
Initial status:
Load supplied from Manual Bypass Q2.
1. Close UPS output switch Q1 (Pos. I).
 Load is now supplied parallel through Automatic Bypass and Manual Bypass Q2.

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 AND MANUAL BYPASS
Q2”.
3. Connect the Battery to the UPS by closing the external Battery protections and close, if
present, the switch CB3 (option).
NOTE !
Ensure the LED 1 (Rectifier) is lit before
carrying out this procedure.
It indicates that the DC-Link has reached
800Vdc (see screen MEASURES / Rectifier)!
Before performing the next procedure make
sure that the LED 3 (Booster/Battery charger)
is lit.
3. Open Manual Bypass switch Q2 (Pos. O).
 The Load is supplied by the Utility through the Automatic Bypass.
The Synoptic Diagram must display the status “LOAD
SUPPLIED BY AUTOMATIC BYPASS”.
4. Insert the inverter performing the command “Inverter ON".
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