Eaton 93PM Installation And Operation Manual page 84

UPS System Installation
4 4 . . 7 7 . . 4 4 G G e e n n e e r r a a t t o o r r I I n n t t e e r r f f a a c c e e C C o o n n n n e e c c t t i i o o n n s s
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
NOTE 2
NOTE 3
NOTE 4
NOTE 5
To Install wiring:
1. Verify the UPS system is turned off and all power sources are removed. See
Chapter 7 UPS Operating 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
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
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.
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 (see
11. Route the wiring along the interface wiring channel to the UPS building alarm terminals. See
Figure 23
12. Secure the wiring to the wire tie anchors provided (see
13. Connect the building alarm interface wiring to the building alarm terminals. See paragraph
3.2.4 UPS System Interface Wiring Preparation
Figure 26
14. If wiring external parallel CAN connections, proceed to paragraph
4.7.5 Installing External Parallel CAN Control Wiring and
connections, proceed to paragraph
4.7.6 Installing External Parallel Pull Chain Control Wiring and
proceed to paragraph
to paragraph
15. Close the UPS outside door and secure the latch.
74 Eaton 93PM UPS (400V/480V Four-Wire – 100 kW Frame) Installation and Operation Manual 164000566—Rev 04
An UPS building alarm input is used to indicate On Generator.
Any pair of unused building alarm terminals may be used for On Generator connections.
Program the building alarm to read On Generator and for either Normally Open (default)
or Normally Closed as required by the generator sensing output.
If installing interface wiring connections between standalone cabinets, conduit must be
installed between cabinets.
Disconnect terminal block plugs from terminal blocks to wire plugs.
17).
for UPS interface terminal locations.
for terminal assignments.
4.7.7 Installing Minislot Interface
4.8 Installing a REPO
for shutdown instructions.
Figure 17 for wiring access information, and
Figure
and Table 24 for wiring and termination requirements, and
Connections; if wiring external parallel pull chain
Connections; if wiring Minislot connections,
Connections; if wiring REPO connections, proceed
Switch; otherwise, proceed to Step 15.
Figure 22 and
Figure 24).
25) using Zip ties.
Figure 23 for
Figure 22 and