ABB ACS580MV - Insulation Test; Commissioning for MBU=0001 Option

100 Option
 Insulation test
The insulation test is not recommended, if necessary check the description in Insulation
Resistance Measurements.
 Commissioning for MBU=0001 option
• Confirm the MCB has been racked out and grounded.
• Ground the input busbar in TRU cabinet by grounding harness for safety.
• Connect the control cables among the MCB, MBU and COU cabinet.
• Disable the local close push button on MCB cabinet.
• Connect the auxiliary control power supply to the cabinet.
Check of the isolation switches position
• Follow the operation sequence, operate the switches of QS1(Q1), QS2(Q2) and
QS3(Q3).