Powerware (4080 KVA) 9390 User Manual Page 29

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Installing the UPS System
3-7
Powerware
®
9390 UPS (40–80 kVA) Installation and Operation Manual S 164201535 Rev C
12. Connect phase A, B, 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 Appendix A for wiring and termination requirements and wiring
access information. Note wiring connections for dual-feed systems.
13. If wiring an IDC, proceed to Step 14; otherwise, proceed to Step 17.
14. Route and connect the output cable between the UPS cabinet and the IDC in
accordance with the instructions in the Powerware 9390 Integrated Distribution
Cabinet (80 kVA) Installation and Operation Manual. See Appendix A for UPS
cabinet wiring access information.
15. Connect phase A, B, and C, and Neutral (if required) power wiring from the IDC to
the UPS cabinet output and neutral terminals. See Appendix A for wiring and
termination requirements.
16. Proceed to Step 21.
17. If wiring a parallel system, proceed to Step 18; otherwise, proceed to Step 21.
CAUTION
Parallel system wiring length should be in accordance with Drawing 164201535-5, sheet
16 of 16, to ensur e 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 Appendix A for UPM wiring and termination requirements and
wiring access information.
19. Proceed to Step 21.
20. Connect phase A, B, and C, and Neutral (if required) power wiring from the output
and neutral terminals to the critical load. See Appendix A for wiring and
termination requirements and wiring access information.
CAUTION
When sizing the battery system, do not exceed the internal battery charger capabilities. See
Chapter 15, “Product Specifications,” for maximum battery charger currents.
21. Route and connect the battery cables between the UPS and battery cabinets in
accordance with the instructions in the Powerware 9390 Integrated Battery Cabinet
(Models IBC-S and IBC-L) Installation Manual. See Appendix A for UPS cabinet
wiring access information.
22. Connect the positive, negative, and ground DC power wiring from the battery
cabinet to the UPS cabinet battery terminal block and ground terminals. See
Appendix A for wiring and termination requirements.
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