CMD-260 test mode?

Well I'm nearly there. I've got a power supply, 3 CMD-260 drives and
a Bridgeport with NEMA 42 steppers on the XY and Z axis. I still
have to get a PC connected and load some software (thinking of MACH
1 - pros and cons would be appreciated).

Until I get the PC hooked up, I'd like to test the drive/stepper
combination. (The motors are unmarked and I'm taking some best
guesses at an appropriate power supply. I'm going to try 34 volts at
8 amps in parallel and see how hot the motors get. I can still
change it if things go squrilly). Anyone know if there's a way to
test them to see if everything works in the absence of the PC,
software, etc.? Can I test them unloaded or do they have to be
attached to the Bridgeport?

If not, can a PC be used to test in the absence of CNC software?

Thank for all the help.

Regards,
Jeff