Installing the UPS System3-8 EATON Powerware® 9390 UPS (100–160 kVA) Installation and Operation Manual S 164201604 Rev B powerware.comC A U T I O NIn the following step, DO NOT move the sensing and EMI wires from the rectifier contactor K1input terminals. These wires must remain connected to the K1 terminals for proper UPSoperation.10. Disconnect the phase A, B, and C bypass contactor K5 power input leads only (twowires per phase) from the rectifier contactor K1 input terminals. Connect thesepower leads to the bypass input terminals.11. Connect phase A, B, and C rectifier input power wiring from the utility source tothe rectifier input terminals in the UPS cabinet. See Appendix A for wiring andtermination requirements and wiring access information. Note wiring connectionsfor dual-feed systems.12. Connect phase A, B, and C, and Neutral (if required) bypass input power wiringfrom the utility source to the bypass input terminals and neutral terminals in theUPS cabinet. See Appendix A for wiring and termination requirements and wiringaccess information. Note wiring connections for dual-feed systems.13. If wiring an IDC or IAC, proceed to Step 14; otherwise, proceed to Step 17.14. 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 inparagraph 1.5 on page 1-6, for wiring instructions. See Appendix A for UPS cabinetwiring access information.15. Connect phase A, B, and C, and Neutral (if required) power wiring from the IDC orIAC to the UPS cabinet output and neutral terminals. See Appendix A for wiringand termination requirements.16. Proceed to paragraph 3.2.6.3.17. If wiring a parallel system, proceed to Step 18; otherwise, proceed to Step 20.C A U T I O NParallel system wiring length should be in accordance with Drawing 164201604-5, sheet15 of 15, 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 outputand neutral terminals of each uninterruptible power module (UPM) to the moduletie cabinet. See Appendix A for UPM wiring and termination requirements andwiring access information.19. Proceed to paragraph 3.2.6.3.20. Connect phase A, B, and C, and Neutral (if required) power wiring from the outputand neutral terminals to the critical load. See Appendix A for wiring andtermination requirements and wiring access information.21. Proceed to paragraph 3.2.6.3.
