Re: voltage selection
Hi Claude, I think you may have missed a number there, 53VDC is actually the max voltage for a 2.8mH stepper, so the 48VDC power supply will be perfect for you, and with the G540 will give fantastic performance and results.
There are a number of people who do put the resistor in, and those who don't, but I always put them in myself, just so it is current limiting anyway. If I remember right there was also something about a difference in mode or settings when a resistor wasn't used to current set. I'd have to go over the documents again to refresh my mind there.
cheers, Ian
It's rumoured that everytime someone buys a TB6560 based board, an engineer cries!