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Ayagb.2239
Ayagb.2239
Associate II
December 9, 2019
Question

temperature affect L6470 Stall detection

  • December 9, 2019
  • 1 reply
  • 647 views

I am using stall detection when stepper motor enter under force. but temperature affact detection system. I am using same force in same system but stall detection feedback is different position in different temperature. I need to find force position. How can I solve this problem.

B.Regards.

Ahmet.

This topic has been closed for replies.

1 reply

Cristiana SCARAMEL
Cristiana SCARAMEL
ST Employee
January 9, 2020

If I understand the topic, you are trying to evaluate the motor in overload condition, in particular which is the "torque threshold" that cause a motor stall.

The L6470 stall detection ​feature is designed to detect a motor stall condition. In this case the motor is not delivering torque.

It is not designed to sense a motor torque.

You can find more details on the sensorless stall detection system and how to work in the AN4241 at page 14.

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