Yaskawa Error Code A910 Link

If you want, I can produce a short printable troubleshooting checklist tailored to a specific Yaskawa model and network type (e.g., MECHATROLINK-II, EtherCAT, or RS-485).

[Invoking related search terms]

In the Yaskawa ecosystem—specifically for Sigma series servo drives—the error code A.910 is an Overload Warning.

It serves as a preemptive alert that the motor is approaching a critical overload state (Alarms A.710 or A.720). If you ignore it and keep running, the drive will eventually trip a full fault to protect the hardware. Common Causes

Mechanical Overload: The physical load on the motor is too heavy or has become stuck due to mechanical issues.

Wiring Faults: Incorrect or loose wiring at the motor or encoder can trigger this warning.

Capacity Mismatch: The motor may be undersized for the required torque/operating conditions. yaskawa error code a910 link

High Ambient Temperature: If the temperature inside the control panel exceeds 55°C, it can lead to heat-induced overload warnings.

Incorrect Parameter Settings: The "Overload Warning Level" (Pn52B) might be set too low for your specific application. How to Fix It

Check Mechanics: Ensure there are no jams, binding, or excessive friction in your machine.

Verify Wiring: Inspect the motor and encoder cables for any damage or poor connections.

Adjust Parameters: If the load is naturally high but within safety limits, you can adjust the warning threshold using parameter Pn52B.

Cooling: Ensure the control panel has proper ventilation and that the drive's heat sink is clean. If you want, I can produce a short

Isolate the Issue: Disconnect the motor from the load and run it alone. If the warning persists, the issue is likely within the drive (SERVOPACK) or the motor itself.

For detailed wiring diagrams or specific parameter lists, you can refer to the Yaskawa Sigma-7 Troubleshooting Manual.

Are you seeing this warning constantly or only during specific parts of your machine's cycle? Σ-7C SERVOPACK - Troubleshooting Manual

Even if the card is seated correctly, dust, humidity, or corrosive gases (like sulfur in paper mills) can oxidize the gold-plated pins on the option card or the socket on the drive control board.

If the motor is standing still but the drive trips instantly on A910, you likely have a noise issue.

Error Code A910 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.

The specific keyword phrase associated with this fault is "Yaskawa error code A910 link." Understanding the "link" in this context is the key to solving the problem. Unlike a simple overload or overvoltage fault, A910 points to a physical or logical disconnection between the drive’s main CPU (Control Board) and the communication module (e.g., EtherNet/IP, Profibus, DeviceNet, or CC-Link). Power/boot sequencing

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

Symptom: Intermittent A910 that clears on power cycle. Root Cause: The plastic card retainer clip had broken, allowing 2mm of movement. Fix: Replaced retainer and added a hot-melt glue bead along the card-edge top (field fix).