990-6537E-001

Start Up the Parallel UPS System from Maintenance Bypass Operation for UPS with One Internal Switch

NOTE: The following are generic start-up procedures. You can also follow the steps of the Guided sequences which are specific to your system. Select Control > Guided sequences > Start up UPS system and follow the steps which appear on the display.
NOTE: Before proceeding with the steps below, ensure that the parallel system settings are properly configured and the PBUS cable connections are securely in place.
  1. Close UIB (if open).
    The display turns on. The rebooting sequence lasts approximately 3 minutes.
  2. Close SSIB (if present).
  3. Close the battery disconnect device(s).
  4. Select Control > Operation mode > Transfer to bypass operation if possible.
  5. Close UOB (if present).
  6. Repeat step 1 to 6 for the other UPSs in the parallel system.
  7. Close SIB (if present).
  8. Confirm the self-test for the static bypass switch has completed.
  9. Open Ext. MBB.
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