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P
#
ALARM
IN
CONNECTOR
1
Input dry contact #5 (AUX5)
2
Reserved
3
Line failure (default; can be reassigned)
4
COMMON
5
Low battery (default; can be reassigned)
6-9
Remote panel
5.2
Emergency Power Off – EPO (manual)
An external Emergency Power Off (EPO) switch may be installed on the Centric by the customer. The
EPO switch cuts power to the load in emergency situations.
The connection point for the EPO switch is a two-pin connector on the lower rear of the system (connector
group 3). See Figure 32, and item 1 in Figure 36. The EPO switch must be an N.O.-type, rated for at least
24 Vdc, 1 A. Be sure to perform a continuity test on the EPO switch before connecting it to the UPS.
5.2.1
Restarting the UPS after EPO
After the emergency situation that prompted use of the EPO switch has been resolved, the UPS can be
restarted as follows:
1.
Reset the EPO switch.
2.
Switch off the following circuit breakers: ac input, bypass ac input, battery.
Centric 3x480 Vac, Installation Guide, rel. 2.2
G
E
AMATRONIC
LECTRONIC
Figure 36: Connector group 2
Figure 37: Pin numbers in D9 connectors
Table 11: Pin assignments for D9 connectors
I
L
.
NDUSTRIES
TD
RS232
CONNECTOR
RXD, Receive data
TXD, Transmit data
not used
GND
not used
not used
RS485
CONNECTOR
RTX-
not used
RTX+
not used
not used
not used
41
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