Yaskawa Error Code A910 〈2026 Release〉

If you see A.910, the servo motor is drawing too much current, often due to mechanical or parameter-related issues. The most common causes include:

Start with the most fundamental checks:

Once you’ve resolved the A910 fault, implement these best practices to prevent recurrence:

Do not confuse A910 with these similar codes: yaskawa error code a910

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Excessive friction or a physical obstruction in the machinery.

Look for brief spikes during acceleration or deceleration. If peak torque regularly hits 300%, shorten the acceleration ramps. Step 3: Audit Parameter Configurations If you see A

Large load inertia combined with rapid acceleration or deceleration rates. Operating the motor beyond its rated output for too long. Recommended Actions Reduce the Load

External electromagnetic interference (EMI) can corrupt the encoder signal. This is often caused by lack of proper grounding or incorrect cable routing (e.g., routing signal cables near high-voltage motor cables).

This is common after replacing a drive or motor and performing a new setup without correctly transferring all parameter settings. If you share with third parties, their policies apply

Severe electromagnetic interference from nearby welding equipment, large contactors, or improper grounding can inject noise into the analog current feedback lines. This can trick the drive into thinking there is a constant offset.

The Yaskawa drive continuously monitors the current flowing to the motor. When it detects the load is approaching the overload protection trigger point, it issues the A910 warning. The drive will continue to operate in this warned state for a short period, but if the excessive load persists, the drive will eventually trip, triggering a full A.710 or A.720 alarm to protect the motor and drive from thermal damage.