Yaskawa Error Code A910 -

[ Normal Operation ] ---> [ Load Exceeds Pn52B threshold ] ---> [ A.910 Warning Flashes ] ---> [ Hard Trip / A.710 Overload ] Root Causes of the A.910 Warning

The most telling sign is that the A910 warning appears only when the machine is performing a specific, demanding operation (e.g., heavy cutting, lifting a load, accelerating quickly).

The A.910 alarm is typically triggered by one of the following factors:

"Brakes?" Sarah suggested. "Maybe the brake didn't release?"

If your display shows A.910, follow these steps to prevent a full system shutdown: 1. Check the Mechanical Load yaskawa error code a910

You can check exactly how many hours the fan has logged by navigating the drive’s monitor parameters ().

A: This is a specific behavior. As mentioned, it means a previous overload alarm was never cleared from the drive's memory. You can check the alarm history and perform a full fault reset to clear it.

If the load is consistently too heavy, a higher-capacity motor/drive combo may be required. If you are currently facing this error, let me know:

It is critical to distinguish A910 from (Control Power Undervoltage), which relates to the internal logic power supply, not the main power input. [ Normal Operation ] ---> [ Load Exceeds

Think of A910 as a final caution: "The motor is working too hard, and if you continue, the system will shut down to prevent damage." Because it is a warning, the drive may continue to operate briefly, but it is imperative to cease high-load tasks and investigate the root cause immediately.

related to the control board, which usually requires checking internal connections or replacing the CPU unit. Yaskawa Knowledge Center specific SERVOPACK model

Verify that the servomotor model matches the SERVOPACK capability (check encoder type and resolution settings).

If the cooling fan is physically jammed by debris, thick dust, or grease common in harsh industrial environments, its RPMs will drop. The drive senses this drop in current or speed and throws the A910 alarm to prevent the heatsink from actually overheating and damaging the IGBT modules. 3. High Ambient Temperature / Clogged Heatsink Check the Mechanical Load You can check exactly

The is a common Overload Warning typically found on Sigma-series servo drives, such as the Sigma-7, Sigma-5, and Sigma-3 . It serves as a pre-alarm notification that the motor or drive is operating near its thermal limit, allowing operators to intervene before a full shutdown (like an A.710 or A.720 fault) occurs. Understanding the A.910 Alarm

. If the production manager decides to increase the weight of the packages or the speed of the line without recalibrating, the servo may find itself in a permanent state of "excessive load". The A.910 warning appears because the motor is being asked to do more than it was designed for, or because the Overload Warning Level (Pn52B) parameter is set too low for the current job. 3. The Silent Connection Issue

Before calling for a drive replacement or expensive repair, follow this systematic diagnostic procedure.

The servomotor has been operating at a torque level exceeding its rating for a sustained period. Common Causes: High Load:

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