08 OPERATION
3BHS212794 E01 REV M ACS6000 USER MANUAL 186/278
8.8.1 Start sequence of the drive
1) NotReadyOn
2) ARU ReadyOn
• Only drives with an ARU (see the next step, ReadyOn, for
the conditions)
3) ReadyOn
• Auxiliary power supply on
• Doors of medium voltage units closed and locked
• Drive is not grounded
• No emergency-off
• No fault
• WCU ready
4) On command
5) Charging
• DC link charges
• MCB closes
• Cooling system switches on
6) ARU ReadyRef
• Only in drives with an ARU
7) ReadyRun
• INU starts magnetizing (only in drives with an ARU)
• INU starts to modulate
8) Start command
9) ReadyRef
10) Operation
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