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connector TB1 can be used for these purposes. Each input is a dry relay contact
input and requires two-wire signaling. None of the inputs are pre-programmed
but need to be separately programmed by qualified service personnel.
When using an external battery system (either the original 93PS battery cabinet
or a customer-sourced battery cabinet/rack), external signaling wiring is
recommended to be connected.
One general alarm relay output is also on the front panel. This output is either
normally open (NO) or normally closed (NC). The polarity selection is made with
a wiring connection. By default, the general alarm relay activates when a system
alarm is active, that is, any
ALARM
condition is active in the system.
Alternatively, it can be activated with any particular event, but this must be
programmed separately by qualified service personnel. The alarm relay is
designed for signal level (ELV or SELV) voltages only, not for utility use. For
higher signaling circuit voltage requirements, please use an industrial relay
adapter in the MiniSlot.
5.5.1
Installing customer input signals interface
These inputs are located behind the UPS door, in the top section of the UPS.
See Figure
22
for the connector locations.
Tie points with strain relief for the communication cables are located on the right
and left side of the cable conduit.
Signal inputs can be configured to different functions. Normally these functions
are either informative (for example, “On Generator”) or functional (for example, a
remote “Go to bypass” command).
5.5.2
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 terminal TB20 (and TB21). In
93PS 8-20 kW UPS, the connector for the battery circuit breaker monitoring
signal and battery circuit breaker trip signal is on the left side of the power
cabling.
When using a 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 the battery breaker signal wiring is located in the middle of the
UPS cabinet. Punch holes are located on the left or right side panel, back wall or
bottom plate.
See Section
5.2.1
for installation instructions.
Eaton 93PS UPS 8–40 kW
User's and installation guide
©
Eaton Corporation plc 2016. All rights reserved.
Revision: 003
Document ID: P-164000493
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