A.71Alarm · Motion / load
Yaskawa SGDH A.71: Overload High Load
What A.71 means
The motor ran well above its rated torque for several seconds (high-load overload).
Symptoms
Alarm during heavy moves or at start.
Is it repairable?
Often mechanical; motor or drive repair when wiring and mechanics check out.
Common causes
- Mechanical binding or jam
- Brake not releasing
- Wrong wiring of the motor or encoder
- Motor fault
Safe checks
- 1Check that the brake releases
- 2Check the mechanics for binding
- 3Check the motor and encoder wiring
Drives hold dangerous voltage after power-off. Checks should only be done by qualified personnel, with power isolated and the DC link discharged.
Reviewed by AutomIQ repair technicians. Code and name from the Yaskawa SGDH SERVOPACK manual.
Related Yaskawa SGDH faults
- A.10Overcurrent or Heat Sink Overheated
- A.30Regeneration Error Detected
- A.40Overvoltage
- A.41Undervoltage
- A.81Encoder Backup Error
- A.C9Encoder Communications Error