Eaton 93PS - Page 76

input and the common terminal. All control wiring and relay and switch
contacts are supplied by the operator. Use twisted-pair wires for each alarm
input and common.
• The signal inputs can be programmed to display the alarm's functional name.
• LAN drops for use with MiniSlot cards are provided by facility planners or the
operator.
• The UPS Battery Aux and 24 VDC Shunt Trip signal wiring from the UPS
must be connected to the DC source disconnect device. See Figure
18: Battery trip wiring, TB20.
• Battery Aux and 24 VDC Shunt Trip wiring must be a minimum of 1.5 mm
2
.
• The Remote EPO feature opens all switchgear in the UPS cabinet and
isolates power from your critical load. Local electrical codes may also require
tripping upstream protective devices to the UPS.
• The Remote EPO switch must be a dedicated switch that is not tied to any
other circuits.
• If the normally-closed (NC) Remote EPO contact is used, a jumper wire must
be connected between pins 3 and 4 on connector EPO.
• Remote EPO wiring should be a minimum of 0.75 mm
2
and a maximum of
2.5 mm
2
.
• The distance between the Remote EPO and the UPS cannot exceed 150
meters.
• Alarm relay contacts have a maximum current rating of 5 A and a switched
voltage rating of 30 VAC (RMS) and 30 VDC.
• Alarm relay wiring must be a minimum of 0.75 mm
2
.
© Eaton Corporation plc 2020. All rights reserved. Revision: 006 Document ID: P-164000493 76 (126)
Eaton 91PS/93PS UPS 8–40 kW User’s and Installation Guide