Eaton 93PM - UPS System Interface Wiring Preparation

the UPS and MOB AUX contacts. Always confirm contact operation prior to
wiring.
5.8 UPS system interface wiring preparation
Control wiring for features and options should be connected at the customer
interface terminal blocks located on top front of the UPS, behind the door.
Note: Do not connect relay contacts directly to the mains-related circuits.
Reinforced insulation to the mains is required.
Read and understand the following notes while planning and performing the
installation:
• The customer must provide all interface wiring.
• When installing internal interface wiring to MiniSlot terminals, route the wiring
through the internal opening in the MiniSlot communication bay.
• All signal inputs or remote features require an isolated normallyopen contact
or switch (rated at 24 VDC, 20 mA minimum) connected between the alarm
input and common terminal. All control wiring and relay and switch contacts
are customer-supplied. Use twisted-pair wires for each alarm input and
common.
• The signal inputs can be programmed to display the alarm functional name.
• LAN and telephone drops for use with MiniSlot cards must be provided by
facility planners or the customer.
• The UPS Battery Aux and 24 VDC Shunt Trip signal wiring from the UPS
must be connected to the DC source disconnect device. Also 48VDC Shunt
Trip signal can be utilized via jumper changes for 80–200kW models without
internal battery breaker. See Figure
24 and Figure 25 .
• Battery Aux and 24 VDC Shunt Trip wiring should 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 not tied to any other
circuits.
• A jumper wire must be connected between pins 1 and 2 on connector EPO,
if the normally-closed (NC) Remote EPO contact is used.
• Remote EPO wiring should be a minimum of 0.75 mm
2
and a maximum of
1.5 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 should be a minimum of 0.75 mm
2
.
Eaton 93PM UPS 30–200 kVA
User's and installation guide
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Eaton Corporation plc 2017. All rights reserved. Revision: 005 Document ID: P-164000249 79 (126)