[mactec54]

Drive we're purchase in Feb this year.
The problem is confirmed to be with the software version that was shipping at that time.

I usually get new Drive changes for testing, they have made so many changes to the Dyn2, I never had any with a software problem,( not saying there was not a problem with your software that was loaded)This can happen when they have made so many changes to the Dyn2 Drive, the Dyna3 Drive, is also getting the same changes, mainly for the new encoder 16Bit & a smaller package, the New Dyna2 Drives are even smaller package now than what you have

One thing with Dmm, they will replace, repair any problems anyone has with there system, even after the warranty has expired, if they know that it is a manufacturing problem/defect

There's nothing wrong with my settings in Mach3.

I never said there was anything wrong with your settings, I said if you are having to reset the Drives, ( Power off ) then the first place to look is at the Mach3 Velocity setting, is usually set to high, this relates to the max rpm of the motor