ABB ACQ80-04 Series - Switching the Motor Power Supply from Drive to Direct-On-Line

Drive main contactor on/off controlS11Main switch for the driveQ1
Motor power supply selection (drive or direct-on-
line)
S40Bypass circuit breakerQ4
Start when the motor is connected direct-on-lineS41Drive main contactorK1
Stop when the motor is connected direct-on-lineS42Bypass contactorK4
DriveU1Drive output contactorK5
Switching the motor power supply from drive to direct-on-line
1. Stop the drive and the motor with the drive control panel (drive in local control mode)
or with the external stop signal (drive in remote control mode).
2. Open the main contactor of the drive with S11.
3. Switch the motor power supply from the drive to direct-on-line with S40.
4. Wait for 10 seconds to allow the motor magnetization to die away.
5. Start the motor with S41.
62 Planning the electrical installation