21 Eaton® 9390 (100–160 kVA) UPS Installation and Operation Manual 164201604—Rev F
13. If wiring an IDC or IAC, proceed to Step 14; otherwise, proceed to Step 18.
14. Route and connect the output cable between the UPS cabinet and the IDC or IAC. Refer to the applicable
IDC or IAC installation and operation manual, referenced in 1.6 For More Information for wiring
instructions. See Chapter 15 Installation Information for UPS cabinet wiring access information.
15. Connect phase A, B, and C, and Neutral (if required) power wiring from the IDC or IAC to the UPS cabinet
output and neutral terminals. See Chapter 15 Installation Information for wiring and termination
requirements.
16. Proceed to 4.7.3 Battery Wiring.
17. If wiring a parallel system, proceed to Step 18; otherwise, proceed to Step 20.
Parallel system wiring length should be in accordance with 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 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 output terminals 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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When sizing the battery system, DO NOT exceed the internal battery charger capabilities. See
Chapter 14 Product Specifications for maximum battery charger currents.
To install wiring to connections:
1. Route and connect the battery cables between the UPS and battery cabinets in accordance with the
instructions in the Eaton 9390 Integrated Battery Cabinet (Models IBC-S and IBC-L) Installation Manual.
See Chapter 15 Installation Information for UPS cabinet wiring access information.
2. Connect the positive, negative, and ground DC power wiring from the battery cabinet to the UPS cabinet
battery terminal block and ground terminals. See Chapter 15 Installation Information for wiring and
termination requirements.
3. After wiring the UPS system to the facility power and critical load, be sure to ground the system according
to local and/or national electrical wiring codes.
4. If wiring interface connections, proceed to 4.8 Installing Interface Connections; otherwise, proceed to
Step 5.
5. When all wiring is complete, reinstall the safety shield panels removed in previous steps. Secure with the
retained hardware.
6. Close the control panel door and secure with the retained hardware.
7. Reinstall the doors removed in 4.2 Unloading the UPS Cabinet from the Pallet and Mechanical Installation
and secure with the retained hardware.
Installing the UPS System
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