Battery Breaker Wiring Interface; Relay Output Interface Connections; Mini-Slot Interface Connections; Installing Signal Interface Connections In Parallel System - Eaton 93PM User And Installation Manual

4.5.2 Battery breaker wiring interface

When using the original accessory battery cabinet from the manufacturer, the battery breaker
interface wiring is provided with the cabinet. Connecting it requires only routing the wires from the
cabinet to the bottom section of the UPS. The connector for the battery circuit breaker monitoring
signal and battery circuit breaker trip signal are to the left from the power cabling.
When using third party battery system, the breaker must be equipped with auxiliary signal and should
have a 24 V shunt trip for remote opening of the breaker, when needed.
Wire entry for battery breaker signal wiring is always located on the lower section of the UPS cabinet.
Punch holes are located on the left or right side panel, back wall or bottom plate.

4.5.3 Relay output interface connections

The general alarm relay is a dry relay signal output. The relay can be used for informing the operators
about UPS alarm conditions, for example through a building management system. By default, the
relay is configured to activate when the UPS general alarm is active, that is, any event having ALARM
status is active. The relay can also be configured to activate by some other event but this needs to be
done by authorized service.
Relay signal wiring can be installed only through the signal cabling canal, from back to front, on the
top section of the UPS.

4.5.4 Mini-slot interface connections

For Mini-slot accessories and communication devices selection see Chapter 5 Communication
interfaces on page 53. For installation and setup of a Mini-slot card, please contact your Eaton
representative.
To install wiring to connections:
1. If not already installed, install the LAN and telephone drops.
2. Open the front door of the UPS.
3. Remove the particular Mini-slot cover plate by removing the two screws securing the plate and
install the device by pushing it all the way in.
4. Secure the Mini-slot communication device with two screws.
5. Route and install the LAN, telephone, and other cables to the appropriate Mini-slot cards. Cable
route is through the signal cable canal, on top section of the UPS.
6. Refer to the manual supplied with the Mini-slot card for operator instructions.
7. When all wiring is completed, close the front door and secure the latch.

4.5.5 Installing signal interface connections in parallel system

Installation of signal interface connections in parallel system is done by following the aforementioned
instructions. Signal inputs can be paralleled between the units, that is, the same contact can be used
for several units' signal input signaling. This concerns also the EPO-signal.
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User's and Installation Guide
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