: The drive has detected that the motor is operating near its rated capacity for a sustained period. If the workload isn't reduced, the system will trip a full alarm and shut down. Common Causes Mechanical jams or increased friction in the machine.
Look for binding, misalignment, or inadequate lubrication in gearboxes, ball screws, or bearings. Check for foreign debris jamming the movement. 3. Check Acceleration and Deceleration Settings
Unlike a "fault" that immediately stops the motor, A.910 is classified as a . It triggers when the drive detects that the motor is operating for an extended period under a torque that significantly exceeds its rated characteristics. Ignoring this warning typically leads to a full system halt once the overload threshold is surpassed. Common Causes of A.910
Do not confuse A910 with these similar codes:
: Incorrect or faulty contact in the servomotor or encoder wiring. yaskawa error code a910
: If the mechanics are sound, consider adjusting the gain or increasing the overload warning level in parameter Pn52B to better suit your operation.
The A.910 warning is triggered when the drive detects that the torque or current being drawn by the motor has exceeded safe continuous operating levels for an extended period.
In simple terms, the drive has detected an inconsistency or failure in its internal circuitry that measures electrical current flowing to the motor. The drive includes current sensors (usually Hall Effect sensors or shunt resistors) that monitor output to protect the motor and the drive itself. When the drive powers up (or during a self-check), it expects to see near-zero current with the motor stopped. If the measured offset is above a predefined threshold, the drive triggers an A910 alarm.
Examine the encoder cable for signs of damage: cuts, pinching, or tight bends, particularly near moving parts. : The drive has detected that the motor
Ensure your drive controller firmware is up to date, as newer firmware versions often optimize parameter validation rules.
Unlike a fault code, an alarm or warning like A910 does not always stop the motor immediately. However, it prevents the system from executing specific functions, such as auto-tuning or advanced positioning. Understanding the root causes of this error allows you to resolve it quickly and minimize system downtime. Primary Causes of Error Code A910
Does the error happen or during a specific movement ? Have you recently changed the load or the program ? Table 1 - Yaskawa
Squeeze the retention tabs on the fan housing, disconnect the plug-and-play power cable, and slide the old fan out. Look for binding, misalignment, or inadequate lubrication in
For further assistance, you can find official documentation and manuals on the Yaskawa Technical Document Library Are you seeing this code on a servo drive display robot teach pendant Yaskawa Servo Drive Alarm Codes Guide | PDF - Scribd
The servo is trying to move a load heavier than its capacity, or there is excessive friction in the machine mechanism.
Here is a story of a long night on the factory floor, illustrating how this error occurs and how to fix it. The Ghost in the Assembly Line: A Tale of A.910