Yaskawa Error Code A910 Exclusive ❲VALIDATED | 2026❳

Yaskawa’s PC-based software provides advanced diagnostic capabilities beyond what the digital operator alone can offer.

| Step | Action | Expected Result | | :--- | :--- | :--- | | | Monitor U1-07 (DC Bus Voltage) during normal run. | Should be ~1.35x input voltage (e.g., 540-620VDC for 400V class, 270-310VDC for 200V class). | | 2 | Check L2-05 (Undervoltage detection level). Factory default is usually 380VDC (400V class). If set too high, nuisance A910 occurs. | Lower L2-05 by 5-10% only if power supply is truly unstable. | | 3 | Check L2-01 (Momentary Power Loss Ride-Thru Time). Default = 1.0 sec. | Increase to 2.0 seconds if utility sags are common. | | 4 | Measure input voltage while running at 100% load. | Voltage drop should not exceed 10% from no-load to full-load. |

, causing it to trigger even during normal (but heavy) operation. 【安川電機】e-メカサイト ✅ Immediate Troubleshooting Steps Monitor Cumulative Load: Check the drive's monitor mode to see the Cumulative Load Ratio yaskawa error code a910 exclusive

The system constantly monitors the motor's torque reference and temperature, comparing the actual load against a pre-programmed electronic thermal (i-t) protection curve. This curve models the motor's ability to shed heat.

If possible, disconnect the motor from the machine and run it "naked." If the A.910 still appears, the issue is likely electrical (wiring or the drive itself) rather than mechanical. Check Mechanics: | | 2 | Check L2-05 (Undervoltage detection level)

The is an alert generated by the Yaskawa Sigma-series drive indicating an exclusive restriction conflict [1, 2].

: Utilize the autotuning or tuning-less functions within Yaskawa SigmaWin+ to match the drive's gain settings to the exact inertia of the load. Poorly tuned loops lead to current hunting and micro-oscillations, causing phantom overloads. | Lower L2-05 by 5-10% only if power

Ensure cabinet fans are working and internal temperatures are below 55°C. Adjust Pn52B

Based on Yaskawa documentation (specifically for the GA500, GA700, A1000, and V1000 series drives), Error Code indicates an Overload Warning .

If you are using a Yaskawa Motoman robot (like the NX100 or FS100) and see code 0910 , this is a different issue entirely—typically a CPU Error related to communication between internal boards.