Cause : Motor Overload comes when the load is too heavy or the acceleration/deceleration times or cycle times are too short.

An oL1 fault on a Yaskawa drive indicates motor overload. This means the motor is drawing more current than the drive's electronic overload protection can handle.

Follow these steps to correct fault:

1. Check Load Conditions: Assess the load on the motor. An excessive load or sudden changes in load can cause the motor to overload. Ensure that the load is within the motor's rated capacity and that there are no mechanical issues causing undue strain.

2. Inspect Mechanical Components: Examine the mechanical components connected to the motor, such as belts, pulleys, couplings, and gears. Look for signs of wear, misalignment, or binding that could increase the load on the motor.

3. Verify Drive Parameters: Review the parameters in the Yaskawa Z1000 drive to ensure they are configured correctly for your motor and application. Check the current limits, acceleration/deceleration settings, and any other relevant parameters. Adjust them if necessary to reduce the load on the motor.

4. Monitor Motor Performance: Use monitoring tools provided by the drive to observe the motor's performance during operation. Look for signs of excessive current draw, overheating, or erratic behavior that may indicate an overload condition.

5. Check Motor Windings: Inspect the motor windings for any signs of damage, such as insulation breakdown or overheating. Check the connections between the motor and the drive for loose or corroded terminals. Tighten any loose connections and repair or replace damaged components as needed.

6. Evaluate Ambient Conditions: Assess the ambient temperature and humidity levels in the motor's environment. High temperatures or humidity can exacerbate motor overload issues. Consider installing additional cooling equipment or relocating the motor to a more suitable environment if necessary.

7. Review Motor Compatibility: Ensure that the motor is compatible with the Yaskawa Z800 drive and that there are no mismatched parameters or compatibility issues. Consult the motor and drive documentation to verify compatibility and make any necessary adjustments.

8. Inspect Drive Operation: Check the operation of the drive for any irregularities that may contribute to motor overload. Look for signs of voltage spikes, current fluctuations, or other anomalies. Perform a diagnostic test on the drive to identify any faults or issues.