to perform autotuning or manually adjust gains to stabilize the system.
: Increased friction or a physical jam in the machinery is forcing the motor to work harder than usual.
In Yaskawa systems, the error code generally indicates an Overload Warning (pre-alarm) for servo drives or a CPU Error for specific robot controllers. For Yaskawa Sigma-3, Sigma-5, and Sigma-7 Servo Drives
If the physical machine load has increased—or if the original system design was marginally engineered—the motor may simply lack the continuous torque rating required. Running highly aggressive acceleration and deceleration cycles without adequate rest periods forces the servo to live permanently in its peak torque zone. Step-by-Step Troubleshooting and Remedies yaskawa error code a910 exclusive
Tighten terminal connections or replace damaged, high-flex cables. Pn52B Parameter
: If this warning is frequent in a new setup, the motor may be undersized for the load it is carrying.
Improperly tuned gains can cause the motor to overwork. Try reducing the speed gain or position gain. to perform autotuning or manually adjust gains to
Preventing A910 warnings is more efficient than troubleshooting them reactively. A proactive maintenance strategy is key.
Unlike general software or parameter-setting errors (e.g., oC, oH, or bUS errors), A910 is because:
If the alarm persists, determine if external hardware is causing the issue: Turn off the main and control power. For Yaskawa Sigma-3, Sigma-5, and Sigma-7 Servo Drives
The starting or operating torque exceeds the motor's rated capacity. Reconsider load weight or increase motor capacity. Mechanical Issues
Reacting to warnings prevents a hard shutdown, but eliminating the conditions that cause them ensures maximum plant productivity. Implement these preventative steps:
Ignoring this warning and continuing to operate the system risks triggering a full A.710 (Instantaneous Overload) or A.720 (Continuous Overload) alarm, which will immediately stop the motor.
To minimize the likelihood of encountering the A910 error code in the future:
The A910 error code is a specific fault code generated by Yaskawa's servo drives and robots. When this error occurs, it typically indicates that there is an issue related to the system's exclusive access. The error code A910 suggests that the device is experiencing a problem with accessing a particular resource or function that is currently locked or reserved by another process.