Kone · Frequency Inverter
This error indicates that the motor speed has exceeded a safe limit while traveling in the intended 'riding' or forward direction. This is a critical safety fault, often triggered by a loss of speed control, an external force causing acceleration, or an incorrect over-speed threshold.
Click steps to track your progress.
Verify the accuracy and stability of the speed feedback signal from the encoder or other speed sensing device.
Check the motor load and ensure that no external forces are causing uncontrolled acceleration beyond commanded speed.
Review and adjust the over-speed protection threshold parameter in the drive to an appropriate and safe limit.
Inspect the drive's speed control loop parameters for any signs of instability or incorrect tuning.