Yaskawa Error Code A910 [new] -

Verify that the motor's mechanical brake is fully releasing when the servo is turned ON. ⚠️ Impending Faults (The "Next Step")

Yaskawa drives track the total number of hours the cooling fans have been running. When this internal counter crosses a specific threshold (often around 20,000 to 30,000 hours, or roughly 3–5 years of continuous operation), the drive automatically triggers the A910 alarm. This is a preventative maintenance reminder indicating the fan is nearing the end of its reliable lifespan. 2. Physical Fan Failure or Blockage

Inspect the cooling fan located at the top or bottom of the drive (position depends on the model framework).

Look for jams, binding, or lack of lubrication. yaskawa error code a910

Before diving into fixes, it’s crucial to understand the "why." A Yaskawa AC drive operates by converting incoming AC power to DC via a rectifier (converter), storing that power in a large capacitor bank (DC bus), and then inverting it back to variable frequency AC.

Yaskawa’s technical documentation for your specific drive series (Technical Manual TM.V1000.01, for example) contains detailed timing charts and waveform examples for A910 detection. Always keep the latest manual available for your exact drive revision.

DIY troubleshooting is effective for external power issues. However, seek professional help if: Verify that the motor's mechanical brake is fully

: Faulty contacts or incorrect wiring between the servomotor and encoder.

Ensure that your application command values do not exceed the safety limits programmed into the drive.

Carefully inspect the connections from the drive to both the servomotor and its encoder. Look for: This is a preventative maintenance reminder indicating the

Cycle the control power to the drive. The A910 alarm should now be cleared. Preventative Maintenance Tips

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Verify the warning threshold is appropriate for the duty cycle.

: If the warning persists even with no load, the internal current detection circuit of the SERVOPACK may be faulty, requiring a replacement of the drive unit.