Critical Power
Modifications reserved
Page 52/60
GE_UPS_ISG_TLE_SUL_M16_M50_2bU_V010.docx
Installation Guide
TLE Series 160 - 500 UL S2B
4.10
“EPO - EMERGENCY POWER OFF” COMMAND CONNECTION
WARNING !
The connection of an emergency button
“EPO - Emergency Power Off”
must be
performed by a
GE Service Technician
only when the UPS is COMPLETELY POWERED
DOWN.
BE AWARE !
The reliability of the system depends on this contact NC (Normally Closed)!
An Emergency button (Normally Closed voltage-free contact) can be connected on terminals
XA /
EPO-1, EPO-2
. Max. rating
XA
terminals
:
2.5mm
2
(AWG/kcmil 14).
Fig. 4.10-1 XA terminal block for “EPO - Emergency Power Off” command connection
When opened, this contact causes
the immediate opening of the
Contactors
K6
and
K7
as well as
the shut-down of
Rectifier
,
Inverter
and
Static-Switch
.
NOTE !
This procedure could imply a
Load
shut-down.
Keep SELV cables separated from HIGH
VOLTAGE cables.
In a Parallel System a separate NC (Normally Closed) contact must be
connected individually to each unit.
Fig. 4.11-2 XA “EPO - Emergency Power Off” – RPA Parallel System connection schematics
TLES_UL_225-750_
S1_Customer interfac
e-XA_01
Customer Interface
1
12 13 14 15 16
17 18 19 20
21 22
2 3 4 5 6
7 8 9
10 11
XA
EP
O
EP
O
+
-
SGSE_400-500_S3_T
erminals XA_01
XA
EPO E
PO
+
-
TLES_UL_400-500_S
1_UPS_EPO-RPA con
nection schematic_G
E_01
1
2
- +
XA
EP
O
EP
O
+
-
1
2
- +
EP
O
EP
O
+
-
1
2
- +
EP
O
EP
O
+
-
XA
XA
EPO