F7452 fault in siemens sinamics V90 drive indicates the Following error is too high. This means the actual position of the motor has fallen too far behind the commanded position profile, usually due to mechanical binding or torque limitations.
Cause:
The difference between the position setpoint position actual value (following error dynamic model) is greater than the tolerance.
- The drive torque or accelerating capacity exceeded.
- Position measuring system fault.
- Position control sense incorrect.
- Mechanical system locked.
- Excessively high traversing velocity or excessively high position reference value (setpoint) differences.
Remedy:
Check the causes and resolve.
