Critical Power
Modifications reserved
Page 69/91
GE_UPS_USM_TLE_SUL_M16_M50_2bU_V010.docx
User Manual
TLE Series 160 - 500 UL S2B
7.2.2
Complete shut-down of the TLE Series 160 - 500 as frequency converter
NOTE !
Follow this procedure only in case the UPS system and the Load must be
completely powered-down.
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 “Q1 - UPS Output switch” (Pos. O)
.
3. Disconnect the Battery from the UPS by opening, if present, the “CB3 – External Battery
switch” (option) and then the “External Battery Protections”.
NOTE !
Before performing the next procedure (4) 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
.
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.