990-66230A-001

Transfer a Single UPS from Maintenance Bypass Operation to Normal Operation

NOTE: This procedure uses internal disconnect devices only.
  1. Check that:
    • UIB, SSIB, and UOB for this UPS are in the OFF (open) position.

    • BB for this UPS is in the OFF (open) position.

    • MBB for this UPS is in the ON (closed) position.

    • the MBB cover for this UPS is removed.

  2. Close SSIB for this UPS.
  3. Close UOB for this UPS, and the UPS will operate in bypass operation.
  4. Open MBB for this UPS.
  5. Reinstall the cover on MBB for this UPS.
  6. Close UIB for this UPS.
  7. Close BB for this UPS.
  8. On this UPS, from the main menu, tap Maintenance > Alarm clear. Wait approximately 100 seconds and the UPS will transfer to normal operation.
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