Cause : Overload comes when the motor is drawing more current than the drive can safely handle. This could be due to several factors, such as excessive load on the motor, incorrect parameter settings, or a mechanical issue within the system.

"alarm 16" in panasonic servo drive indicate "Overload" condition. This means he motor is being subjected to a load beyond its capacity or the motor itself might have internal problems, like worn bearings or winding issues.

Here are some steps you can take to troubleshoot and resolve the error:

1. Check the Load:

• Ensure that the load on the motor is within the rated capacity.
• Verify that there are no obstructions or excessive friction in the mechanical system connected to the motor.

2. Inspect Wiring and Connections:

• Check the wiring and connections between the servo drive and the motor. Loose or damaged wires can cause irregular current flow, leading to overloads.

3. Parameter Settings:

• Review the parameter settings in the servo drive, particularly those related to current limits, acceleration/deceleration times, and motor tuning.
• Ensure that the parameters match the motor and application requirements.

4. Check Motor Condition:

• Inspect the motor for any signs of damage or wear, such as unusual noises, vibrations, or overheating.
• If the motor is old or has been subjected to harsh conditions, it might be worth testing or replacing it.

5. Examine the Environment:

• Ensure that the operating environment is within the specified temperature and humidity ranges for the servo drive and motor.
• Excessive heat or poor ventilation can cause the system to overheat, leading to an overload.

6. Error Reset and Monitor:

• After addressing the potential causes, reset the error in the servo drive and monitor the system closely during operation to ensure the issue does not recur.