Bit more info. summary: Mistakes corrected, but no happy ending.

When adjusting dip switches, refer to the instructions on the side of the driver, not to an instruction for a different driver that you found on the internet! Yes folks, I don't have leadshine M542s, I have Tongka M542s and the dip switch setting are different.

Funny thing is that when I looked at the dips I found a setting that indicated 16 microsteps, unfortunately that was just chance. So when I thought I was changing from 16steps to 8steps, I was actually changing from 3A to 2A, and from 0% decay to 50% (whatever that is).

I've put everything to how it was set originally. And I've tried 8steps instead of 16. In both cases all the faults are just the same as before.


I did spot that dip7 is set at 1/2 current. The other option is full current. Looks like I'm running at half throttle ?