Yaskawa Error Code A910 Link Jun 2026

Several factors can contribute to the A910 link error:

The is an operational warning code indicating a motor overload or torque peak warning typically found in Yaskawa Sigma series (such as Sigma-3, Sigma-5, and Sigma-7) SERVOPACKs. This code serves as a preventative alert, signaling that the system is operating near its thermal or mechanical limitations before a hard fault trips the machine offline.

It is critical to confirm what device is showing the code. Yaskawa uses overlapping numerical schemas across its product ecosystems: Hardware Type Code Format Primary Meaning Core Component At Fault Sigma Servo Drives Go to product viewer dialog for this item. A.910 Motor Overload Warning External motor, axis mechanics, or parameter Pn52B . DX100 Robot Controllers Go to product viewer dialog for this item. 0910 YCP01 CPU Error Main control rack logic board processor failure FS100 Robot Controllers Go to product viewer dialog for this item. 0910 CPU-201R CPU Error Internal logic board communication disruption.

A910 Official Description: Overspeed (at Start) Severity: Medium to High (Prevents operation but typically indicates a configuration or hardware mismatch). Category: Speed Control / Feedback Loop yaskawa error code a910 link

The is fundamentally a communication handshake problem between the drive’s brain and its add-on card. It is rarely a catastrophic failure; more often, it is a loose screw, a dirty contact, or a parameter mismatch.

The A910 alarm has a sub-code that tells you why the link failed. To access it:

When troubleshooting, check the "Link" LED's behavior. An active link light accompanying an A.910 warning is strong evidence your network is healthy, and your problem lies in the motor's mechanical or electrical path. Several factors can contribute to the A910 link

The motor is operating for extended periods at torques that exceed its ratings, or the starting torque required is too high.

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.

| Parameter | Description | Role in A910 | | :--- | :--- | :--- | | | Electronic Thermal Selection | Enables/Disables the protection feature that generates A910. | | L3-02 | Motor Rated Current | Critical. Sets the baseline for the overload calculation. Must match the motor nameplate. | | L3-03 | Electronic Thermal Time | Sets how long the motor can sustain an overload before the alarm/trip occurs. | | L3-04 | Overload Warning Level | Sets the percentage of current that specifically triggers the A910 warning (default is usually very close to the trip point). | | U1-03 | Monitor: Output Current | Used for real-time diagnostics to verify if the motor is actually drawing too many amps. | 0910 YCP01 CPU Error Main control rack logic

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Yaskawa Servo Drive Alarm Codes Guide | PDF - Scribd

). It serves as a preventative alert, triggering before a critical overload alarm (A.710 or A.720) occurs to protect the motor and drive from damage.