Hi Peter

> Where did you measure the current?

I measured one phase.

> (you may indeed measure 600mA in the power 
> leads with current limiting (7.5A) in the driver)

The 600 mA was mistake, current reaches 3.5 A actually.

> If you see a red LED light on the 7I39, you have reached the current limit

Oh, in deed it dose light up, it flickers a bit, though.

I'll pull the current limit jumper and report back. Thanks.

> Another thing to check is that you have not somehow limited the max PWM value 
> so you are not getting sufficient drive voltage (PWM does not get near 100% 
> or 
> near 0%)

This would be done using hal scope, right? I'll try that.

See you
Flo


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