Clear any jams, realign mechanical actuators, and lubricate guide rails or gearboxes to minimize drag. 2. Evaluate Operating Conditions
Examine whether the application demands have recently changed:
If the warning occurs during specific movements, try reducing the acceleration or deceleration rates in the host controller or drive parameters. yaskawa error code a910 exclusive
series servo drive is displaying , you are seeing an Overload Warning .
If you encounter A910, follow this logical flow to restore operation: Clear any jams, realign mechanical actuators, and lubricate
Over time, mechanical components degrade. Dry linear rails, failing ball screws, worn-out gearboxes, or physical debris blocking the axis travel create immense mechanical resistance. The servo motor must exert significantly higher torque than normal to reach its commanded position, driving up the electrical current. 2. Misconfigured Overload Warning Level (Parameter Pn52B)
Yaskawa Error Code A.910 Overload Warning typically found on Yaskawa Sigma-7 (and occasionally Sigma-5) servo drives. Unlike hard faults that immediately shut down the system, this code acts as an early warning alert. It notifies operators that the motor has been operating continuously at a torque level exceeding its rating, putting it on the verge of a critical overload trip (such as an A.710 or A.720 overload alarm). series servo drive is displaying , you are
Errors in parameters related to torque limits or current levels can cause the drive to report an overload prematurely. Troubleshooting and Solutions
Yaskawa Error Code A910 is “exclusive” because it points directly to a hardware failure in the drive’s charging path. While software errors can often be tuned out, A910 demands a hardware-level response. If you see this code, plan for drive replacement or send the unit to a Yaskawa-authorized service center. Do not attempt to bypass the pre-charge circuit – doing so can cause explosive capacitor failure.
Unlike a hard "Fault" that stops the motor immediately, A.910 is technically a . It serves as a preemptive notification that the current load on the servomotor is exceeding normal operating parameters. If the condition causing the overload is not addressed, the drive will eventually shut down with a hard fault to protect the hardware from permanent damage. Common Causes of the A.910 Warning