Yaskawa Error Code A910

Before diving into fixes, it’s crucial to understand the "why." A Yaskawa AC drive operates by converting incoming AC power to DC via a rectifier (converter), storing that power in a large capacitor bank (DC bus), and then inverting it back to variable frequency AC.

The A.910 code is a rather than a hard trip. The SERVOPACK allows the system to continue running temporarily, but it flashes the indicator to prevent catastrophic damage to the motor windings or internal drive components.

When the calculated thermal load reaches roughly 20% to 50% of the maximum threshold , the drive flashes A.910 on its digital operator. The ALM indicator LED will flash rather than stay solidly lit. yaskawa error code a910

If safe to do so, uncouple the Yaskawa motor from the gearbox or drive mechanism.

Because the drive keeps running during an A910 alarm, it can be tempting to ignore it. Doing so carries heavy risks: Before diving into fixes, it’s crucial to understand

Disclaimer: Servo drives are high-voltage devices. Always follow proper lockout/tagout procedures before troubleshooting. Consult your specific Yaskawa model's manual for parameter variations.

According to Yaskawa technical documentation, error code A910 signifies a "Current Offset Fault" or "Current Detection Circuit Problem" (sometimes listed as oPE related in older models, but specifically A910 as a fatal hardware error in newer firmware). When the calculated thermal load reaches roughly 20%

By default, the warning triggers when the system detects that the load has reached for a specific duration, governed by parameter Pn52B (Overload Warning Level).

: Material blockages or misaligned axes prevent free rotation. 2. Aggressive Motion Profiles

Bad connections between the drive and the motor alter resistance and phase balance.