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TLE Scalable Series 40 to 150 UL S1
UPS Installation Guide / REV-B
4.10
“EPO - Emergency Power OFF” command connection
Warning!
The connection of an emergency button EPO (Emergency Power Off) must be performed only by an
ABB Service Technician when the UPS is completely powered down!
Note!
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:
AWG 14
(2.5mm
2
).
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 14 / 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 an RPA 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 an RPA 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 switch
“Q1 - UPS Output” closed.
EPO EPO
-
+
XA
TLE
S_UL
_04
0-15
0_S
1_UP
S-XA
_AB
B_0
1
E
P
O
E
P
O
-
+
XA
Q1
I ON
0
O
FF
POWER MODU
LE 1
POWER MODU
LE 2
POWER MODULE 3
J35µP -
RS232
EPO
XA
TL
ES_
U
L_
0
40
-1
50
_S1
_U
PS_
EPO-
R
PA
c
on
ne
ct
io
n s
ch
em
at
ic
_A
B
B
_0
1
E
PO
E
PO
_+
E
PO
E
PO
_+
TLES_UL_
040-150_S
1_UPS_AB
B_01
E
PO
E
PO
_+
TLES_UL_
040-150_S
1_UPS_AB
B_01
E
PO
E
PO
_+
XA
E
PO
E
PO
_+
XA
E
PO
E
PO
_+