Cause : Motor Stalled comes when drive is unable to accelerate or decelerate motor. If the motor is stalled, it means it's not rotating despite receiving power from the drive. 

• Increase P041, A442, A444, A446 [Accel Time x] or reduce load so drive output current does not exceed the current set by parameter A484 [Current Limit 1] for too long.
• Check for overhauling load.