After working great since February I think my jrk may have gone kaput. It gets very hot when I attach motor power (24V). It no longer communicates over USB. The USB led is off. Error LED is solid red. Output status LED is solid yellow.
Amp draw in normally less than 1A but I haven’t checked it lately.
I’d like to know what happened to the jrk so that I can avoid damaging the next one.
As long as max recommended voltage is not exceeded what can kill a jrk? Will shorting the motor wires kill it? How about if the power supply wires get connected to the motor terminals or some some other combination on the screw terminal strip? Reverse polarity maybe? None of these things happened, I just wonder what can kill the jrk. I seem to recall that it has self protection circuity.
I don’t see any discoloration on the board or any other sign of overheating or physical damage. I hope I look that good when I’m dead.
Is there anything I should try before declaring my jrk dead?