BECKHOFF AM3000 - Manual (Page 35)

Drive Technology 9 Commissioning
AM3000 / AM3500 Version: 1.5 35
Fault Possible cause Measures to remove the cause
of the fault
Motor doesn’t rotate • Servo drive not enabled
• Break in setpoint lead
• Motor phases in wrong
sequence
• Brake not released
• Drive is mechanically blocked
• Supply ENABLE signal
• Check setpoint lead
• Correct the phase sequence
• Check brake control
• Check mechanism
Motor runs away • Motor phases in wrong
sequence
• Correct the phase sequence
Motor oscillates • Break in the shielding of the
feedback cable
• Amplification to high
• Replace feedback cable
• Use motor default values
Error message: brake • Short-circuit in the supply
voltage lead to the motor
holding brake
• Faulty motor holding brake
• Remove the short circuit
• Replace motor
Error message: output stage
fault
• Motor cable has short circuit or
earth leakage
• Motor has short circuit or earth
leakage
• Replace motor cable
• Replace motor
Error message: feedback • Connector is not properly
plugged in
• Break in cable, cable crushed
or similar
• Check connector
• Check cables
Error message: motor
temperature
• Motor thermostat has switched
• Loose connector or break in
cable
• Wait until the motor has
cooled down. Then investigate
why the motor becomes so
hot.
• Check connector, replace
cable if necessary
Brake does not grip • Required holding torque too
high
• Brake faulty
• Check the dimensioning
• Replace motor