ABB ACS6000 - Emergency-Off Sequence; Prevention of Unexpected Startup Sequence

08 OPERATION
3BHS212794 E01 REV M ACS6000 USER MANUAL 188/278
8.8.3 Emergency-off sequence
8.8.4 Prevention of unexpected startup sequence
1) Operation
2) ReadyRef
3) Emergency-off command
• Stop command to ARU (only in drives with an ARU)
• MCB opens
• INU stops modulating
• Speed coasts down
4) Emergency-off
1) Operation
2) ReadyRef
3) Prevention of unexpected startup command
• Drives stops according to Ramp, Torque, and Ramp
stop modes
• Open disconnector
• Prevention of unexpected startup complete
• Drive remains charged, MCB closed
4) INU operation prevention feedback