I have made a prototype, but my TB6560 seems to be running hot without moving a stepper motor. What can it be? All other functions are working properly with Repetier, but these TB6560 are a lot more difficult to work with! Does anyone have a suggestion where to look? I have checked my PCB for soldering mistakes, but the PCB is nice and tidy. And the schematic also doesn't show any mistakes as far as I can tell. The strangest thing is that the driver is also heating up when there is only voltage applied to the signal side, so before VMA and VMB are switched on.
↧
