Thanks John,
I feel like an idiot for selecting 115V! I got lost in the manual for the stepper controller motor and driver and the mention of 110VDC everywhere and for some reason thought the 115V setting was the better match!
It wasn't until I posted this comment and started reading it out aloud I realised what I had done. Thanks for the extra info regarding the result of my error, I can see now how much load the PSU would have taken and imagine the build up before it popped. I did connect a much smaller 240V power supply to the stepper motor controller which I think should have powered the controller but the led on the controller doesn't light up anymore ( I may have killed it ). I have however ordered a replacment PSU and controller so can hopefully continue where I left off and try the old controller again with the new PSU to see if that makes a difference.
Just another quick question though.
On the stepper controller there appears to be 2 AC inputs but no indication as to which one is for positive and which is for negative, like I have seen in nearly all other stepper motor controllers?
In the wiring diagram it shows 2 inputs like below?
18-80 VAC ( Where I put my negative wire from the PSU )
20-110VDC ( Where I put my positive wire from the PSU )
I really don't want to blow anything else up, do you know if I at least had this bit correct?
I have run smaller stepper motors using the arduino but never one as big as a Nema 34. Once I get the power supply hooked up I should be home free
Thanks again
Jason
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