Critical Power
Modifications reserved
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GE_UPS_ISG_TLE_SUL_40K_M15_1US_V010.docx
Installation Guide TLE Scalable Series 40 - 150 UL S1
4.10
“EPO - EMERGENCY POWER OFF” COMMAND CONNECTION
WARNING !
The connection of an emergency button
“EPO - Emergency Power Off”
must be
performed by QUALIFIED SERVICE PERSONNEL only when the UPS is
COMPLETELY POWERED DOWN.
BE AWARE !
The reliability of the system depends on this contact NC (Normally Closed)!
Fig. 4.10-1 XA terminal block
for EPO command connection
An Emergency button (Normally Closed voltage-free
contact) can be connected on terminals
XA / EPO-1, EPO-2
.
Max. rating XA terminals: AWG 13 / 2.5mm
2
.
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.
Fig. 4.10-2 XA “EPO - Emergency Power Off” – RPA Parallel System connection schematics
In a Parallel
System a separate
NC (Normally
Closed) contact
must be connected
individually to
each unit.
When the
“EPO - Emergency Power Off”
has been activated, the system must be restored as
follows:
•
Realize the push-button
“EPO - Emergency Power Off”
(contact on XA / EPO-1, EPO-2 is closed
again).
•
Perform the “Inverter OFF” command from the screen:
Commands 1 / Inverter /
OFF
.
(see User Manual to Section 6.5).
In case of a Parallel System perform the “Inverter OFF” command from the
screen: “Commands 1 / Inverter / OFF” of each unit connected on the Parallel
Bus and having its output switch Q1 closed.
TLES
_UL
_04
0-15
0_S
1_U
PS-X
A_0
1
EP
O
EP
O
-
+
XA
EP
O
EP
O
-
+
XA
Q1
I ON
0
OF
F
EPO
XA
TL
ES_
U
L_
04
0-
15
0_
S1
_U
PS_
EP
O-
RP
A
co
nn
ec
tio
n
sc
hem
at
ic
_G
E_
01
EP
O
EP
O
_
+
EP
O
EP
O
_+
EP
O
EP
O
_+
EP
O
EP
O
_
+
XA
EP
O
EP
O
_+
XA
EP
O
EP
O
_+