Cause : AC drive overload comes when the drive has detected an overload condition due to the motor may be driving a load that exceeds its rated capacity, leading to excessive current draw.

"E10.00" fault in inovance MD800 drive indicate "AC drive overload". This means the motor is drawing more current than the drive's rated capacity for a prolonged period, which could lead to overheating and damage to the drive or motor.

Possible Causes:

1. Overloaded Motor: The motor may be driving a load that exceeds its rated capacity, leading to excessive current draw.
2. Improper Drive Settings: Incorrect parameter settings, such as those related to current limits, overload protection, or motor control, can cause an overload fault.
3. Mechanical Issues: Problems such as binding, jamming, or increased friction in the mechanical system can increase the load on the motor.
4. Inadequate Cooling: Insufficient cooling due to blocked ventilation, a malfunctioning cooling fan, or an overheated environment can lead to an overload condition.
5. Incorrect Motor Selection: The motor may not be appropriately sized for the application, leading to overloading.
6. Phase Imbalance or Voltage Issues: Imbalance in the supply voltage or a drop in one phase can cause the motor to draw higher currents on the remaining phases.

Troubleshooting Steps:

1. Reduce the Load on the Motor:

   • Check for Overloading: Ensure that the motor is not being overloaded. Compare the actual load with the motor’s rated capacity. If the load is too high, reduce it to avoid overloading the motor.
   • Verify Application Requirements: Make sure that the motor and drive are properly sized for the application. If necessary, upgrade to a higher-capacity motor or drive.

2. Inspect Mechanical Components:

   • Check for Binding or Jamming: Inspect the mechanical system for any signs of binding, jamming, or increased friction that could be causing excessive load on the motor.
   • Lubricate Moving Parts: Ensure that all moving parts are properly lubricated and that there are no obstructions in the mechanical system.

3. Review and Adjust Drive Settings:

   • Check Current Limit Settings: Verify that the drive’s current limit and overload protection settings are correctly configured according to the motor’s specifications.
   • Adjust Overload Protection: If necessary, adjust the overload protection settings to ensure they are appropriate for the application and motor being used.

4. Ensure Adequate Cooling:

   • Check Ventilation: Ensure that the drive and motor have proper ventilation and that cooling fans are functioning correctly. Clear any obstructions from air vents.
   • Monitor Ambient Temperature: Make sure that the ambient temperature around the drive and motor is within the specified operating range. If the environment is too hot, consider additional cooling measures.

5. Inspect Electrical Connections and Supply:

   • Check for Phase Imbalance: Use a multimeter to check for phase imbalance in the supply voltage. Ensure that all phases are within the acceptable voltage range.
   • Examine Wiring: Inspect all electrical connections and wiring for signs of damage or loose connections that could cause an overload condition.

6. Perform Motor Diagnostics:

   • Test the Motor: Use diagnostic tools to check the motor’s condition, including insulation resistance, winding integrity, and overall performance. A faulty motor could be causing the overload.
   • Compare Motor Ratings: Ensure that the motor’s ratings (current, voltage, power) match the requirements of the application and the drive settings.