990-66230A-001

Transfer a Parallel System from Normal Operation to Maintenance Bypass Operation

  1. On the display of any one UPS in the parallel system, from the main menu, tap Control > Operation mode > Transfer to bypass operation.
  2. Close Ext. MBB.
    The load is now supplied via the Ext. MBB.
  3. Open SIB.
  4. Open all BBs on all UPSs.
  5. Open MIBs and BIBs on all UPSs.
  6. Open all Ext. UOBs on all UPS.
  7. Open UIB, SSIB, UOB for each UPS.
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