Fault 8 Speed monitoring

Subfault: 8.1 Description: Speed monitoring – motor mode
	Response: Output stage inhibit
	Cause	Measure
	Speed controller operates at setting limit (mechanical overload or phase failure in supply system or motor).	– Increase the delay time of the speed monitoring. – Reduce the load. – Increase the current limiting/torque limiting. – Reduce the acceleration. – Check the motor cable, motor, and line phases.
	The encoder is not connected correctly.	Check the encoder connection.
	The encoder has the incorrect direction of rotation.	Check the direction of rotation.

Subfault: 8.2 Description: Speed monitoring – generator mode
	Response: Output stage inhibit
	Cause	Measure
	Speed controller operates at setting limit (mechanical overload or phase failure in supply system or motor).	– Increase the delay time of the speed monitoring. – Reduce the load. – Increase the current limiting/torque limiting. – Decrease deceleration. – Check the motor cable, motor, and line phases.
	The encoder is not connected correctly.	Check the encoder connection.
	The encoder has the incorrect direction of rotation.	Check the direction of rotation.

Subfault: 8.3 Description: Maximum speed at motor shaft exceeded
	Response: Output stage inhibit
	Cause	Measure
	The setpoint is too high.	Reduce the setpoint.
	The motor is driven by the load.	Check the project planning of the drive.
	The actual speed has exceeded the "Maximum speed at motor shaft" limit value. This limit value is set at startup matching the motor and gear unit.	Reduce the maximum speed.