Yaskawa Error Code A910 Exclusive File

Power the system back up and execute a low-RPM manual test using the SigmaWin+ diagnostic software tool .

If your drive uses an option card (e.g., an EtherCAT or DeviceNet card) that shares the same communication bus as the operator port, a conflict in the scan cycle can trigger A910. This is exclusive to drives with firmware versions earlier than 6.0.

Ensure proper shield grounding to prevent Electro-Magnetic Interference (EMI) from distorting signal readings. Σ-V Series - USER'S MANUAL Design and Maintenance

Yaskawa Error Code A.910 Overload Warning typically found on Yaskawa Sigma-7 (and occasionally Sigma-5) servo drives. Unlike hard faults that immediately shut down the system, this code acts as an early warning alert. It notifies operators that the motor has been operating continuously at a torque level exceeding its rating, putting it on the verge of a critical overload trip (such as an A.710 or A.720 overload alarm). yaskawa error code a910 exclusive

Resolving this code promptly is essential to avoid forced machine downtime. This feature guide breaks down the causes, diagnostic steps, and remedies for the A.910 error. 🔍 Quick Reference: A.910 Overview Alarm Name Overload Warning Yaskawa Sigma-5 / Sigma-7 Series SERVOPACKs Primary Meaning

This comprehensive guide breaks down why this warning happens across different Yaskawa families (Sigma-3, Sigma-5, and Sigma-7), how to diagnose the root cause, and how to safely clear it. 📋 Comprehensive Breakdown of the A910 Error Code Description Warning / Minor Fault (LED indicator flashes) Primary Meaning Overload Pre-Alarm (Thermal capacity reached threshold) Subsequent Faults

A defective connection in the motor or encoder wiring can create resistance, signal distortion, or power irregularities. This forces the servo to overcompensate during operation, drawing excessive current to maintain performance and generating the A.910 overload warning. In some cases, as noted by industrypart.com, unstable control due to a faulty phase can cause the A.910 warning, indicating servo anomalies that require a thorough check of the current path. Power the system back up and execute a

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

The motor is operating dangerously close to its thermal or torque limits. System Behavior

: Overload: Low Load (the motor ran continuously over its rated capacity over an extended period). It notifies operators that the motor has been

: If you change Pn52B to a higher value to eliminate nuisance A.910 warnings, you are reducing the safety margin for your motor. Increasing Pn52B too much may prevent the A.910 warning from appearing at all, potentially leading to an unexpected A.710 alarm and machine downtime. Adjust this parameter conservatively and with a full understanding of your load cycle.

The Yaskawa error code (often displayed as A.910 ) is an exclusive alarm related to Momentary Power Failure Detection .

A manufacturing plant experienced an A.910 warning on a Yaskawa servo used in a robotic picking system. The maintenance team replaced both the servo motor and the SERVOPACK amplifier, yet the error persisted. This ruled out individual component failure.

Firmware and parameter checks

Mastering Industrial Automation: Troubleshooting the Yaskawa Error Code A.910 Overload Warning