ABB ACS2000 AFE 1MVA - Page 126

CHAPTER 8 – OPERATION 126
8.5.3 Stop sequence of the drive
Not ready on
Ready run
Ready on
Ready ref
Off command
MCB opens
Operation
AFE Ready on
Stop command
Speed ramps down
INU stops to modulate
Stop command to AFE
Actions:
■ Auxiliary supply is off
■ AFE - INU door
released for opening
■ Drive is grounded
Stopping
DC link discharges
Fan switches off
after a delay