God, I'm an idiot and am lucky I didn't cook something. I'd read so many posts about people wiring things backwards and had even said to myself "I wont be that guy", well, I'm that guy too. I had the encoder plug wired back to front. 1 as 8 etc. So I was getting small signs of life in the HAL config page but my DRO wasn't counting. What I thought was pin 3 on the 7i77 TB5 was actually pin 6 and therefor was sending 5v to the ground on the servo drive and then getting back fed to the +-10 circuit.
Lucky the board seems to have been able to handle it.
Now that the wiring is around the right way with no wayward voltages everything is working nicely!
I have a motor that's actually tuned half ok! I've only had to change one parameter in the drive and that was to put it into speed control which is quite a surprise, don't know if it's a fluke or what but all I've had to do is connect it and tune via the calibration screen. Just a bare motor mind you, it might be a different story once everythings connected up.
One thing that's struck me with the HAL scope and watching the DRO now the first servo is connected is just how damn instant everything is. I'd always hated how mach3 felt like you were driving it with a pole, always seeing things after they happened.
It's awesome being able to put my hand on the motor shaft and see the few tiny vibrations I've still got reflected in the DRO.
Still a long way to go, I'll likely have a lot of things to change once I get the motors in place and can actually tell which way they should be turning and put some load on them but all in all a far better end to the day than it was looking like a few hours ago.
Oh! I'm still not confident I know how to hook up the drive enable. If someone could spell it out for me I'd really appreciate it. For someone who considders CNC a favourite hobby, basic electronics still catch me out often enough.
Pretty sure I need to send +24v to pin 9 on the drive and - to pin 6? The answer will seem really obvious in the morning no doubt.
Thanks again all.
