Deviation in Speed
Kone · Frequency Inverter
¿Qué significa 7 ?
This error indicates a significant difference between the commanded speed and the actual motor speed, exceeding an allowed tolerance. This suggests a problem with the drive's speed control, speed feedback mechanism, or a mechanical issue affecting motor speed.
Causas comunes
- Incorrect PID controller tuning in the drive's speed control loop.
- Malfunction or complete loss of feedback from the speed encoder or resolver (if used).
- Mechanical binding, excessive friction, or damage within the load.
- Insufficient motor torque to achieve the commanded speed due to severe overload.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Verify the functionality and connections of the speed feedback device (e.g., encoder, resolver) for proper signal integrity.
- 2
Check the actual motor speed against the commanded speed using the drive's diagnostic tools or an external tachometer.
- 3
Adjust the speed control PID parameters (proportional, integral, derivative gains) in the drive for improved response and stability.
- 4
Inspect the mechanical system for any physical obstructions or signs of excessive friction that could impede motor speed.