Eaton 9390 - Battery Wiring

Eaton® 9390 (100–160 kVA) UPS Installation and Operation Manual 164201604—Rev F 20
16. Proceed to 4.7.3 Battery Wiring.
17. If wiring a parallel (distributed bypass) system, proceed to Step 18; otherwise, proceed to Step 20.
Parallel system wiring length should be in accordance with Drawing Figure 83 to ensure approximately equal
current sharing when in Static Bypass mode.
18. Connect phase A, B, and C, and Neutral (if required) power wiring from the output and neutral terminals of
each uninterruptible power module (UPM) to the module tie cabinet. See
Chapter 15 Installation Information for UPM wiring and termination requirements and wiring access
information.
19. Proceed to 4.7.3 Battery Wiring.
20. Connect phase A, B, and C, and Neutral (if required) power wiring from the output and neutral terminals to
the critical load. See Chapter 15 Installation Information for wiring and termination requirements and wiring
access information.
21. Proceed to 4.7.3 Battery Wiring.
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To install wiring to connections:
1. Slide the air filters up and remove them from the cabinet.
2. Remove the screws securing the control panel door and swing the door open. Retain the hardware for
later use.
3. Remove the screws securing the bottom internal safety shield panel and remove the panel to gain access
to the input, output, and battery terminals. Retain the hardware for later use.
4. If installing power wiring from the top of the cabinet, proceed to Step 5; otherwise, proceed to Step 6.
5. Remove the screws securing the top and right side internal safety shield panels and remove the panels to
gain access to the top wiring entry. Retain the hardware for later use.
6. Route the input and output cables to the UPS terminal blocks. See Figure 85 for wiring access information
and terminal locations.
7. If wiring a single-feed system, proceed to Step 8; if wiring a dual-feed system, proceed to Step 10.
8. Connect phase A, B, C, and Neutral (if required) input power wiring from the utility source to the rectifier
input terminals and neutral terminals in the UPS cabinet. See Chapter 15 Installation Information for wiring
and termination requirements and wiring access information. Note the wiring connections for single-feed
systems.
9. Proceed to Step 13.
10. Disconnect the single-feed jumpers from the phase A, B, and C terminals on the rectifier input terminals
and bypass input terminals. Remove the jumpers from the cabinet.
11. Connect phase A, B, and C rectifier input power wiring from the utility source to the rectifier input
terminals in the UPS cabinet. See Chapter 15 Installation Information for wiring and termination
requirements and wiring access information. Note the wiring connections for dual-feed systems.
12. Connect phase A, B, and C, and Neutral (if required) bypass input power wiring from the utility source to
the bypass input terminals and neutral terminals in the UPS cabinet. See
Chapter 15 Installation Information for wiring and termination requirements and wiring access information.
Note the wiring connections for dual-feed systems.
Installing the UPS System
For Internal Use Only