08 OPERATION
3BHS842007 E01 REV C
ACS6080
USER MANUAL
176/238
8.9.2
Stop sequence of the drive
1) Operation
2) Ready ref
3) Stop command
4) Stopping
• Speed ramps down
• INU stops modulating
5) Off command
• Stop command to ARU (only in drives with an ARU)
• MCB opens
• DC link discharges
• Cooling system switches off after a delay
6) Ready run
7) ARU Ready on
• Only in drives with an ARU
8) Ready to switch on
• Drive is grounded
• Doors in medium voltage units are released for opening
• Auxiliary power supply switched off
9) Not ready to switch on