Yaskawa Error Code A910 Link Jun 2026

The Yaskawa A.910 error is a pre-alarm for an overload condition. When you see it displayed alongside a normal "Link" indicator, it is a clear request for preventative maintenance, not a network panic. By systematically working through the steps of mechanical isolation, electrical verification, and parameter review, you can diagnose the cause, clear the warning, and avoid the costly downtime of a full A.710/A.720 overload alarm.

is one of the more cryptic yet critical alarms in the Yaskawa drive ecosystem. If you are seeing A910 flash across your HMI (Digital Operator), your drive is not dead—but it is signaling a fundamental breakdown in communication between its internal control board and the optional communication card.

, most notably seen across the Sigma-5, Sigma-7, and Sigma-X series servo drives. Unlike critical hard faults that instantly drop the main circuit power to protect components, the A.910 code behaves primarily as an early-stage warning indicator. It explicitly signals that the servo motor is operating dangerously close to its continuous thermal overload limit or has exceeded the parameters set for safe thermal accumulation over time. yaskawa error code a910 link

Mastering the Yaskawa Error Code A910: Causes, Troubleshooting, and System Recovery

To safely clear the A.910 warning and safeguard your machine hardware from permanent thermal degradation, execute these technical troubleshooting protocols: The Yaskawa A

Monitor the torque command percentage ( ) in the monitor mode to see how close it is to 3. Check Thermal and Environment Conditions Action: Ensure the servo panel has proper ventilation. Fix: If the temperature exceeds , improve cooling or add a cooling fan. 4. Review Overload Warning Parameters Action: Check Parameter Pn52B (Overload Warning Level).

Faulty, damaged, or noisy encoder cable causing intermittent communication (link) errors. Loose terminals connecting the motor phases (U, V, W). 3. Incorrect Parameter Settings is one of the more cryptic yet critical

A910 is rarely a drive failure; it is almost always a or a mechanical reality that the drive settings are ignoring.

The drive uses internal parameters to calculate when this code trips:

This article will dissect exactly what this error means, why it happens, and a step-by-step procedure to clear it permanently.

The overload warning level (Pn52B) might be set too low for the specific application.