The overload warning level is defined by parameter Pn52B . If this is set too low for your specific application, you may get "nuisance" alarms.
Friction in the bearings, a jammed conveyor, or a misaligned gearbox can force the motor to draw more current than intended.
The code indicates that the drive's internal algorithms have detected an operation that exceeds the rated overload protection characteristics of the motor. Essentially, the drive is "warning" you that if current conditions continue, the motor or the SERVOPACK will overheat. Common Causes of the A.910 Alarm
By default, the A.910 warning is often set to trigger when the load reaches 20% of the maximum overload capacity. If your application naturally runs "hot" but within safe limits, you may need to increase the value of (Overload Warning Level) to a more suitable percentage. 5. Environmental Control