Eaton 93PM Series

To Next Page

To Previous Page

60 Eaton 93PM UPS 480V Three-Wire – 100 kW Frame Installation and Operation Manual 164000227—Rev 07

Figure 30. Battery Shunt Trip Terminal Assignments

Not Used

Battery Shunt Trip -

Battery Shunt Trip +

44..1111..44 GGeenneerraattoorr IInntteerrffaaccee CCoonnnneeccttiioonnss

If ESS is enabled and the UPS will be fed by a site generator at any time, the On Generator building alarm must

be wired and configured to a Building Alarm Input. Wiring the On Generator sensing circuit to a building alarm

allows the UPS to optimize its operation with the generator by transferring the UPS from ESS mode to Normal

(double conversion) mode.

NOTE 1 A UPS building alarm input is used to indicate On Generator.

NOTE 2 Any pair of unused building alarm terminals may be used for On Generator connections.

NOTE 3 Program the building alarm to read On Generator and for either Normally Open (default)

or Normally Closed as required by the generator sensing output.

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 interface terminals from the bottom of the UPS, proceed to Step 8; otherwise, proceed to

Step 4.

4. Top Entry Wiring. Remove the top interface entry conduit landing plates to drill or punch holes (see

Figure 17).

5. Reinstall the interface entry plates and install the conduit.

6. Route the UPS building alarm interface wiring through the top interface entry conduit landing plates to the

UPS building alarm terminals. See Figure 22 and Figure 23 for UPS interface terminal locations.

7. Proceed to Step 13.

8. Bottom Entry Wiring. Remove the bottom interface entry conduit landing plates to drill or punch holes

(see Figure 24).

9. Reinstall the interface entry plates and install the conduit.

10. Route the UPS building alarm interface wiring through the bottom interface entry conduit landing plates to

the bottom access interface wiring channel along the inside of the front door.

11. Route the wiring along the interface wiring channel to the UPS building alarm terminals. See Figure 22 and

Figure 23 for UPS interface terminal locations.

UPS System Installation

Eaton 93PM Series - Page 72