Yaskawa Error Code A910 [FAST – 2026]

According to Yaskawa technical documentation, error code A910 signifies a "Current Offset Fault" or "Current Detection Circuit Problem" (sometimes listed as oPE related in older models, but specifically A910 as a fatal hardware error in newer firmware).

Based on the information provided, I'd rate this error code review as follows:

Excessive voltage drop in the supply lines can cause A910, even if the utility power is stable.

. In our story, a small piece of debris has wedged itself into the conveyor track. The motor is now fighting to move the same load, drawing more current than usual to overcome this new friction. The drive notices this increased effort and throws the yaskawa error code a910

"Sparks," Elias said. "Or... the memory of sparks."

For more technical details, you can refer to the official Yaskawa Sigma-7 Manual or troubleshooting resources like Click2Electro . 6.3 Drive Alarms, Faults, and Errors

Verify that the servomotor model matches the SERVOPACK capability (check encoder type and resolution settings). In our story, a small piece of debris

Yaskawa technical manuals list "incorrect wiring or faulty contact of servomotor and encoder" as a primary cause of the A.910 warning.

| Code | Name | Relationship to A910 | | :--- | :--- | :--- | | | Overload (High Load) Alarm | This is the fatal alarm that will eventually occur if the A910 warning is ignored. It indicates the motor's thermal capacity has been exceeded. | | A.720 | Overload (Low Load) Alarm | This is the other fatal alarm possible if the A910 warning is ignored. | | A.911 | Vibration Warning | While not a load alarm, it can occur alongside A910 if mechanical problems cause excessive vibration or inertia mismatch. |

If you encounter A.910, it’s also worth checking if A.911 appears alongside it, as a mechanical issue might be causing both warnings. 2. Out-of-Range Positioning Targets

The is an Overload Warning generated by Yaskawa SERVOPACKs. It triggers when the servo motor operates near its thermal capacity limit but before a catastrophic fault forces the system offline.

Ensure your drive controller firmware is up to date, as newer firmware versions often optimize parameter validation rules.

: If the load is normal but the warning is premature, verify the setting of Pn52B (Overload Warning Level).

Look for binding, misalignment, or inadequate lubrication in gearboxes, ball screws, or bearings. Check for foreign debris jamming the movement. 3. Check Acceleration and Deceleration Settings

During rotational or stationary auto-tuning, the drive requires accurate motor data. If you input a motor rated current, voltage, or base frequency that contradicts the physical capabilities of the drive chassis, the A910 error will appear. 2. Out-of-Range Positioning Targets