Link: Yaskawa Error Code A910

The Yaskawa error code Overload Warning . It serves as a precursor to more severe overload alarms like A.710 (High Load) or A.720 (Low Load). If this warning is ignored, the drive will eventually trigger a hard fault and stop the motor. Common Causes Mechanical Stress

: Excessive load on the motor due to mechanical friction or a physical obstruction. Operating Conditions

: The cycle time or load exceeds the motor's rated capacity. Wiring Issues

: Incorrect or loose contact in the servomotor or encoder wiring. Environmental Factors

: High ambient temperature within the SERVOPACK panel (exceeding 55°C). Parameter Settings : The overload warning level ( ) is set too low for the current application. Recommended Troubleshooting Steps Inspect Mechanics yaskawa error code a910 link

: Check for any mechanical issues causing excessive torque or friction. Verify Wiring

: Ensure all cables between the motor, encoder, and SERVOPACK are securely connected and free of damage. Adjust Parameters : Review the

parameter to ensure the overload warning level is appropriate for your operating conditions. Evaluate Capacity

: If the load is consistently high, consider reducing the operation intensity or upgrading to a higher-capacity motor. Check Cooling The Yaskawa error code Overload Warning

: Verify that the panel cooling fans are functional and that the internal temperature is within specified limits.

If these steps do not clear the warning, it may indicate an internal failure within the specific parameter adjustment steps for a particular Yaskawa series like Sigma-5 or Sigma-7? 6.3 Drive Alarms, Faults, and Errors

Yaskawa error code 0910 indicates a critical CPU error in Motoman controllers, specifically targeting the YCP01 board on DX100 systems or the CPU-201R board on FS100 systems. Troubleshooting involves cycling power, checking board seating, and assessing the power supply, as this major fault prevents normal robot operation. Read the full technical breakdown at Yaskawa Motoman Knowledge Center. DX100 ALARM CODE 0910 CPU ERROR (YCP01)

Preventive measures

Use recommended cable types and proper shielding/grounding practices.
Follow manufacturer guidelines for network topology and termination.
Maintain consistent firmware versions and backup configurations.
Implement orderly power-up sequencing and surge protection.
Periodic inspection and preventive maintenance on connectors and network hardware.

4. Control Board Failure (Rare)

In less than 5% of cases, the drive’s main control board is defective. The socket for the option card may have cracked solder joints or a dead communication controller. Preventive measures

1. What Triggers A910?

The A910 error is a protective function designed to prevent mechanical damage or "runaway" scenarios. The drive monitors the speed feedback immediately upon the "Run" command or during a stop sequence.

The error is triggered when:

Run Command is Input: The motor is already freewheeling (coasting) faster than the speed set in parameter b3-01 (Overspeed Level at Start).
Direction Mismatch: The motor is spinning in the reverse direction while the drive commands a forward start (or vice versa), and the speed exceeds the threshold.
Feedback Noise: The encoder or pulse generator (PG) is sending false signals due to electrical noise, leading the drive to believe the motor is spinning rapidly.

How to Fix It (Solutions Matrix)