Hi There.
Okay, Machine has been running without electrical fault for nearly two years. I'm now getting an odd issue where the y axis (2 x slaved nema23 planetary boxes run from x 2 dsp mosfet drivers) stopped and would judder tying to go on but not a stall whine, Both motors. and I then find the connectors for my z motor are hot to the point where the red insulation has gone black. The 3 dsp drivers share a single 48v psu. X is on its on toroidal transformer. The z runs fine and the motor is warm but not overly hot. Why are the automotive connectors overheating? They are not anywhere near any other cables or any grounded parts immediately around the connector. (Hanging in mid air currently). And what does this have to do with my two slaved y drivers.
Thanks for reading, hope you can shed some light on this. Is it possible that the z single dsp driver is drawing current away from two slaved y drivers? TIA