Yaskawa Error Code A910 Exclusive

Update to firmware v5.08 or later. You can identify your firmware by checking parameter U1-25 (Software Version). If you see "0503" through "0507", you have found the ghost.

Alarms require a manual “Fault Reset” before operation can resume. Warnings, however, are designed to clear automatically once the underlying cause is resolved, though parameter changes may be necessary in some cases.

If the mechanical load of the application exceeds the nominal rating of the motor, an A.910 will occur. Furthermore, if the servo system is poorly tuned, it may continuously oscillate or hunt for the target position. This rapid back-and-forth movement generates excessive heat and spikes the current, triggering the warning. 3. Wiring Issues and Bad Contacts yaskawa error code a910 exclusive

Use the digital operator to check the monitor parameters, specifically the load torque.

Improperly tuned gains can cause the motor to overwork. Try reducing the speed gain or position gain. Update to firmware v5

Tell you which parameters to change for . Give you a checklist for inspecting mechanical friction . Let me know what you'd like to narrow down . Yaskawa Servo Drive Alarm Codes Guide | PDF - Scribd

A.910 can also appear in conjunction with other codes. In one documented field case, a Yaskawa Servopack SGDV-120A01AY101AA simultaneously generated both A.710 and A.910 alarms accompanied by severe motor instability—the motor started jerkily, responded with delay to motion commands, and stopped after a few seconds. Testing revealed a severe current asymmetry: while phases U and V each carried approximately 4 A, phase W showed only about 0.8 A. This phase current fault caused a distorted rotating field, triggering the overload warning and eventually the alarm. Alarms require a manual “Fault Reset” before operation

Rarely, a firmware bug in the drive’s watchdog timer triggers A910 when no physical fault exists. This exclusively happens in:

The most common real-world trigger for an A.910 warning is a physical restriction in the motion axis. When bearings degrade, linear guides lose lubrication, or components misalign, the motor must supply higher torque to match its pre-programmed motion profile. This sustained current draw spikes the drive's thermal mathematical model. 2. Aggressive Duty Cycles & S-Curve Profiles

, causing it to trigger even during normal (but heavy) operation. 【安川電機】e-メカサイト ✅ Immediate Troubleshooting Steps Monitor Cumulative Load: Check the drive's monitor mode to see the Cumulative Load Ratio