Cause : Motor Overload comes when motor draws more current than it is rated for, leading to overheating and potential damage. 

OL2 fault in parker AC10 drive indicate Motor Overload. This means the motor draws more current than its rated capacity for an extended period, which can lead to overheating and potential damage to the motor.

Steps to Troubleshoot and Resolve Motor Overload Fault:

1. Check the Motor Load:

   • Inspect the mechanical load on the motor to ensure it is within the motor’s rated capacity. Overloading the motor with too much mechanical resistance can cause it to draw more current, leading to an overload condition.
   • Look for any obstructions, binding, or excessive friction in the driven equipment (e.g., pumps, conveyors, fans) that could be increasing the load on the motor.

2. Verify Motor Settings in the Drive:

   • Ensure that the drive’s motor parameters, such as the full-load current (FLC), voltage, and frequency, are correctly set according to the motor’s nameplate data.
   • Check the overload protection settings in the drive to ensure they are configured correctly. The drive should be set to trip if the motor draws more than its rated current for a sustained period.

3. Inspect Motor and Cable Connections:

   • Check the motor connections for any loose, corroded, or damaged terminals that could cause high resistance and result in excessive current draw.
   • Ensure that the motor cables are of the correct gauge and are in good condition, without any signs of wear or damage.

4. Examine Ambient Conditions:

   • Ensure the motor is operating within its specified ambient temperature range. High ambient temperatures can cause the motor to overheat more quickly.
   • Check that the motor's ventilation openings are clear of dust and debris, and that cooling fans (if equipped) are functioning correctly.

5. Check for Voltage Imbalance:

   • Measure the voltage across all three phases (if applicable) to ensure that there is no significant voltage imbalance. A voltage imbalance can cause one or more phases to draw more current than others, leading to an overload.
   • If a significant imbalance is found, investigate the power supply and distribution system to correct the issue.

6. Inspect Motor for Mechanical Issues:

   • Ensure that the motor bearings are in good condition and not causing excessive friction or drag. Faulty bearings can increase the load on the motor, leading to an overload.
   • Check the motor shaft alignment and coupling to the driven equipment. Misalignment can cause additional mechanical load, leading to an overload.