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.
On a Yaskawa Sigma-7 servo drive, the specifically indicates an Overload Warning . This code is exclusive in the sense that it acts as a preemptive alert, appearing before the drive triggers a more severe, machine-stopping alarm like A.710 or A.720. What is Happening?
If you encounter A910, follow this logical flow to restore operation:
thermal mathematical model based on current draw over time. If the current exceeds the continuous rated limit of the drive-motor pairing, the internal counter accumulates thermal points. 2. The Relationship Between A.910, A.710, and A.720
Troubleshooting Yaskawa Error Code A.910: A Comprehensive Guide Yaskawa A.910 error code , specifically associated with the Sigma-7 series servo drives Overload Warning
If the warning occurs during specific movements, try reducing the acceleration or deceleration rates in the host controller or drive parameters.
(Overload Warning Level) dictates exact trigger points.