630.x Brake error
Description
An error has occurred in relation to the motor brake. The brake control occurs autonomously from ACOPOS with the brake output. The servo amplifier is switched on (controller ON) and shortly thereafter the brake is released. When switching off the controller, the brake is first activated in standstill and after a certain delay time the servo amplifier is switched off.
Remedy
- 6026: The current consumption of motor reaches the limit when releasing the brake.
- This can occur if the controller becomes unstable/vibrates. Controller instability occurs when the incorrect mechanics are connected to the motor or if there is a defect (e.g. coupling is loose).
- If a wrong option is selected in the machine control, the drive system expects different mechanics.
- 6028, 6029: There is no current flowing to the brake, or an undervoltage was detected.
- An element in the motor brake circuit is defective and prevents sufficient current from flowing to the brake. The following components come into play: link to the motor brake is defective, brake is defective, voltage supply in ACOPOS is defective (24Â V too low), ACOPOS has an internal defect.
A check of the brake is possible if instead of ACOPOS the brake is activated with external 24V. As soon as the brake is released, a clicking noise should be audible in the motor.
- An element in the motor brake circuit is defective and prevents sufficient current from flowing to the brake. The following components come into play: link to the motor brake is defective, brake is defective, voltage supply in ACOPOS is defective (24Â V too low), ACOPOS has an internal defect.
- 6048: The position error when the brake is enabled is too large.
- If the axis with a servo amplifier switched on is brought to a position that needs a lot of power (e.g. plunging into a spring) and subsequently the servo amplifier is switched off (i.e. the motor brake becomes active), it can be that the motor brake is too weak to hold the motor in this position. The position deviation in an activated brake is always monitored, if the deviation becomes too large, this error occurs.