Eaton Power Xpert 9395C Installation And Operation Manual

Eaton Power Xpert 9395C UPS Installation and Operation Manual 164000821—Rev 06 1355. Verify the battery breaker or disconnect for the UPS being shut down is open. If not, open the breaker.6. Open the input and bypass feeder circuit breakers for the UPS being shut down.The UPS is now completely shut down.External Communications Failure alarm is active on remaining online UPSs. This is an expected event andwill clear upon UPS restart.77..55..44 SSiinnggllee UUPPSS RReessttaarrtt iinn aa PPaarraalllleell SSyysstteemmIf any UPS output is on, do not close the MOBs of any non-powered attached parallel units. Closing the MOBsmay open or blow the non-active unit's output fuses.To restart a single UPS from a shutdown state:1. Do not close the MOB for the UPS being restarted.2. Close UPS input and bypass feeder circuit breakers for the UPS being restarted.3. On the UPS being restarted, observe the UPS control panel display becoming active, indicating logicpower.4. On the UPS being restarted, press the Power Maps button on the main menu bar. The Power Mapscreen is displayed (see Figure 82).5. On the UPS Power Map screen, verify the UPS status is SHUTDOWN and on the UPS Module Mapscreen, verify the UPM status is SHUTDOWN.6. Verify no alarms are active on UPS being restarted.7. Verify the External Communications Failure alarm has cleared and no other alarms are active on the onlineUPSs.8. On the Home screen, select the Controls tab on the System Controls screen is displayed (seeFigure 79).9. On the System Controls screen, select Go Online (see Figure 79). Select “Yes” when prompted.If Auto Bypass is enabled (factory default), the critical load is immediately supplied after pre-charge by thebypass source in Bypass mode from all UPSs, until the inverter turns on and the UPSs transfer to Onlinemode. The status indicator on the UPS control panel indicates the UPS is in Bypass mode. If Auto Bypassis not enabled, the UPS outputs remain off until the UPSs turn on the inverter.10. Press the SELECT pushbutton on the UPS Command menu bar.NOTE If the UPS is starting on a bus with other online paralleled UPSs, the UPS will not go tobypass during startup. The UPS will start, sync to the other UPSs online, and go online.11. Verify the following messages display sequentially on the UPS status line:DC STARTING, BYPASSONLINEThe rectifier and inverter turn on. The inverter continues to ramp to full voltage.It takes approximately one minute for the UPS to achieve Online mode.UPS Operating Instructions