Eaton 93PM UPS - Battery Detect and Shunt Trip Interface Connections

UPS System Installation
4-16 Eaton 93PM UPS (20–50 kW, 480V Four Wire – 50 kW Frame) Installation and Operation Manual P-164000540—Rev 4 www.eaton.com/powerquality
Figure 4-14. Relay Contact Terminal Block Connector Assignments
4.7.2 Installing Battery Detect and Shunt Trip Interface Connections
To install wiring:
1. Verify the UPS system is turned off and all power sources are removed. See Chapter 6, “UPS Operating
Instructions,“ for shutdown instructions.
2. If not already opened, open the front door by lifting the latch from the bottom and turning to the right
(counterclockwise) and swing the door open.
3. If not already removed, remove the screws securing the lower internal safety shield panel and remove the
panel. Retain the hardware for later use.
4. If wiring the battery detect and shunt trip connections using the inter-cabinet wiring access pass-through
(line-up-and-match configurations), proceed to Step 5; if wiring the battery detect and shunt trip
connections using bottom entry access, proceed to Step 7; if wiring the battery detect and shunt trip
connections using top entry access, proceed to Step 9.
5. Pass-through Wiring. Route the battery detect and shunt trip wiring from the battery cabinet through the
bottom UPS inter-cabinet wiring access pass-through to the UPS battery detect and shunt trip terminals.
See Figure 4-6 for UPS wiring access information, and Figure 4-15 for UPS terminal locations. Refer to the
Eaton 93PM Integrated Battery Cabinet Installation Manual-Large and Large High Rate, the Eaton 93PM
Universal Integrated Battery Cabinet Installation Manual-Large and Large High Rate, or the Eaton 93PM
Integrated Battery Cabinet Installation Manual-Small, listed in paragraph 1.8, for battery cabinet wiring
access information and instructions.
6. Proceed to Step 10.
Table 4-2. Relay Contact Connections and Wire Terminations
Terminal Name Description
Recommended
Wire Size
Size of Pressure
Termination
Tightening Torque
1 Relay Contact NC
Output: General purpose normally-closed (NC)
relay contact.
Twisted Pair Wires
#18 AWG
#1430 AWG
2lbin
(0.22-0.25 Nm)
3 Relay Contact Common
2 Relay Contact NO
Output: General purpose normally-closed (NO)
relay contact.
Twisted Pair Wires
#18 AWG
#1430 AWG
2lbin
(0.22-0.25 Nm)
3 Relay Contact Common
NOTE 1 If installing interface wiring connections between standalone cabinets, conduit
must be installed between cabinets.
NOTE 2 Disconnect terminal block plugs from terminal blocks to wire plugs.
NOTE 3 Use wire rated for 600V and Class 1 wiring methods.
UPS Relay Output
123
NO_Out
NC_Out
Com