Eaton 9355 Installation And Operation Manual

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OperationEaton 9355 UPS (20/30kVA) Installation and Operation Manual 164201626—Rev F www.eaton.com/powerquality 77Restarting the Parallel SystemTo restart the parallel system:1. Verify that the maintenance isolation breaker (MIS) if present or all of the UPS breakers on the Tie Cabinetare in the OFF position.2. Switch on utility power where the UPSs are connected.3. Remove the UPS front door (see page 10).4. Switch the UPS input circuit breaker to the ON position.5. If the optional UPS output circuit breaker is installed, switch the breaker to the ON position.6. Wait for the front panel LCD to illuminate.The indicator flashes.7. Switch the battery circuit breaker to the ON position.The indicator stops flashing.8. If present, switch the maintenance isolation breaker on the Tie Cabinet to the ON position; otherwise,switch all UPS breakers to the ON position.9. Replace the UPS front door.10. Verify that no alarms appear on the UPS front panel display.If the indicator is flashing, do not proceed until all alarms are clear. Check the UPS status from thefront panel to view the active alarms. Correct the alarms and restart if necessary.11. Press the button once and then press the button to select the TURN UPS ON/OFF menu.12. Press the button to select the System On option; press the button.13. Press and hold the button for three seconds, until the UPS stops beeping.The UPS goes to Bypass mode for five seconds, and then the indicator illuminates. Each UPS shouldbe in Normal mode.14. Press the button until the Eaton logo or Mimic screen appears.ESCESC