This driver is a three phase driver (For Three phase stepper motors) Looking at the part number it implies that the maximum voltage is 80V DC and the current is 6.0 A.
3 = three phase
M = Motor driver
8 = Max voltage (80V)
60 = 6.0 A maximum current.

This is the typical makeup of the part numbers.

Quote Originally Posted by Chaz View Post
Ye, possibly around 50V.

They did work well before the previous set of PSUs died. The current PSU is one of them el cheapo ebay ones, I presume they are SMPS.

Id like to sell the lathe but need it to be 100% reliable before I do. Any suggestions on what PSU would suit if I was just going to upgrade this? Lets assume 36 or 48V max.

lll take a look at the AM882 anyways.

Thanks