G540 - 4 motor connection problem

[paulus.v]

Or better still do your self Bigger favor and sell it then buy Leadshine AM882 Digital drives and use Unregulated toroidal supply. The difference in machine performance will be night and day and you'll never have any issues.

Totally agree! I've got the AM882 drives on his recommendation and I'm very satisfied by their performance. Lower noise and vibrations, better performance at high speeds, software configuration, auto-tunning, etc. And you can give your steppers 60-65V for better performance.