Position Error Alarm in T Series Drives: Triggering and Sensitivity Adjustment

The "Position Error" alarm is essentially the drive's following error alarm. For T Series closed-loop drives, when this alarm occurs, the red indicator light on the drive will flash rapidly 7 times. It is triggered under the following condition: an alarm is generated when the deviation between the position data received from the encoder and the target position data commanded to the drive exceeds a pre-set threshold within the drive.

Simply put, the drive detects a significant discrepancy between the encoder's feedback and the commanded position. For most standard applications, the default sensitivity of this alarm is appropriately set, with a default threshold of 4000 CRP (Counts per Revolution Pulse).

If your application requires very high precision, you can adjust this alarm threshold to make the following error detection more sensitive. This modification is also done via the configuration software:

After making changes, click Save and restart the drive.

Recommendation: When adjusting, decrease the threshold value slowly. If the value is set too small, even minor acceleration fluctuations might trigger the alarm. The optimal value should be determined gradually through testing based on your specific operating conditions.

Updated on: 29/09/2025