Yaskawa Error Code A910 ((top))

. It indicates that the motor is operating at a torque level that exceeds its rated capacity, warning that an actual overload alarm (A.710 or A.720) is likely to occur if the condition continues.

For critical applications, install a 24V DC UPS or buffer module (such as the PULS UB10.241). This device provides ride-through for millisecond-long voltage sags that can trigger A910. It is a game-changer for machines experiencing nuisance alarms due to brownouts or large motor starts elsewhere in the facility. yaskawa error code a910

Poor contact or incorrect wiring in the servomotor or encoder cables can cause irregular current readings that the drive interprets as an overload. If the error repeats after checking all wiring

If the error repeats after checking all wiring and power quality, contact Yaskawa technical support or a certified drive repair center. Their Equivalent Series Resistance (ESR) increases

Inside every Yaskawa drive, small electrolytic capacitors on the control board filter the DC voltage for the logic circuits. Over time (typically 5–7 years in warm environments), these capacitors dry out. Their Equivalent Series Resistance (ESR) increases, causing voltage ripple and droop under load. This is a classic failure mode for older drives.