64 Eaton 93PM UPS 480V Three-Wire – 100 kW Frame Installation and Operation Manual 164000227—Rev 07
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NOTE 1 A UPS building alarm input is used to indicate an open MOB.
NOTE 2 Any pair of unused building alarm terminals may be used for the MOB Aux 1
connections.
NOTE 3 Program the MOB building alarm to read MOB open and for normally closed contacts.
NOTE 4 If installing interface wiring connections between standalone cabinets, conduit must be
installed between cabinets.
NOTE 5 Disconnect terminal block plugs from terminal blocks to wire plugs.
To install wiring:
1. Verify the UPS system is turned off and all power sources are removed. See
Chapter 7 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 wiring the external parallel pull chain connections using the inter-cabinet wiring access pass-through
(line-up-and-match configurations), proceed to Step 4; if wiring the external parallel pull chain connections
using bottom entry access, proceed to Step 6; if wiring the external parallel pull chain connections using
top entry access, proceed to Step 12.
4. Pass-through Wiring. Route the external parallel pull chain control wiring between UPS cabinets through
the top UPS inter-cabinet wiring access pass-through to the UPS external parallel terminals. See Figure 19
for UPS wiring access information, and Figure 22 and Figure 23 for UPS interface terminal locations.
5. Proceed to Step 15.
6. Bottom Entry Wiring. Remove the bottom interface entry conduit landing plate to drill or punch holes
(see Figure 24).
7. Reinstall the interface entry plate and install the conduit.
8. Route the external parallel pull chain control wiring through the bottom interface entry conduit landing plate
to the bottom access interface wiring channel along the inside of the front door.
9. Route the wiring along the interface wiring channel to the UPS external parallel and building alarm
terminals. See Figure 22 and Figure 23 for UPS interface terminal locations.
10. Secure the wiring to the wire tie anchors provided (see Figure 25) using Zip ties.
11. Proceed to Step 15.
12. Top Entry Wiring. Remove the top interface entry conduit landing plate to drill or punch holes (see
Figure 17).
13. Reinstall the interface entry plate and install the conduit.
14. Route the external parallel pull chain control wiring through the top interface entry conduit landing plate to
the UPS external parallel and building alarm terminals. See Figure 22 and Figure 23 for UPS interface
terminal locations.
15. Connect the external parallel pull chain wiring to the pull chain and building alarm terminals. See paragraph
3.2.4 UPS System Interface Wiring Preparation, Table 16, and Table 17 for external parallel terminal block
wiring and termination requirements, and Figure 33 for wiring information and terminal assignments.
16. If wiring Minislot connections, proceed to paragraph 4.11.7 Installing Minislot Interface Connections; if
wiring REPO connections, proceed to paragraph 4.12 Installing a REPO Switch; otherwise, proceed to
Step 17.
UPS System Installation
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