Yaskawa Error Code A910 Best

For more technical details, you can consult resources like the Click2Electro Guide or the Yaskawa Sigma-7 Manual.

is an undervoltage alarm of the main DC bus. While it can be a protective response to a brief power glitch, it often points to serious infrastructure issues: loose wires, undersized feeders, aging capacitors, or a failing soft-charge circuit.

Faulty contact in the motor or encoder cables can cause the drive to "misread" the torque requirements.

: The motor is being asked to accelerate too quickly or handle a load beyond its rated capacity. yaskawa error code a910

A: Not usually. In most cases, the drive is correctly reporting an external issue, such as an overload, wiring fault, or mechanical binding. The drive itself is very rarely the cause.

The A.910 warning is automatically cleared once the root cause (mechanical jam, loose wire, etc.) is fixed and the load on the motor returns to normal levels. The warning status on the drive's digital operator should disappear. If it does not, follow the drive's standard warning reset procedure:

The A910 warning triggers when the drive detects a mathematical or logical conflict within its parameter settings. This usually happens during initial commissioning or after changing application profiles. 1. Invalid Auto-Tuning Inputs For more technical details, you can consult resources

Sometimes, the drive is configured to look for a fan signal only under certain conditions, or the warning logic needs to be reset. Check your specific Yaskawa manual for these parameters:

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

What is the of your Yaskawa drive (e.g., GA700, V1000, Sigma-7)? Faulty contact in the motor or encoder cables

Follow this systematic approach to resolve A910. Always follow Lockout/Tagout (LOTO) procedures before opening the drive enclosure.

In this specific case, the warning appears at power-on, but the motor operates normally. The fix is to properly reset the alarm history.

Cross-reference the parameters entered into the drive with the actual physical nameplate on the motor. Check parameter (Motor Rated Current). Check parameter E1-04 (Maximum Output Frequency).

Some parameters affect A910 sensitivity: