Driver wiring advice needed...

[Wal]

Okay, so I connected an axis up using the control pins (2/3) to PUL+ / DIR+ respectively with the PUL- / DIR- going back to the GRND on the BOB.

Nowt.

Set the step outputs to 'active low' - thanks again Clive for pointing out how to do this: check the 'invert' box in the Parallel Port Setup window (Stepconf utility)

Still nothing.

After a fair amount of head-scratching I measured the voltages coming into the PUL+ / DIR+ terminals on the driver - I know that it's gonna fluctuate when the 'test axis' utility is running, but the voltage was peaking at about 2v, both at the driver and the BOB. A bit more head-scratching before connecting the control pins (2/3) on the BOB to the PUL- / DIR- and +5v to the PUL+ / DIR +. Output pins still set to 'active low' and hey presto...

Pics and (rather meaningless, yet somehow satisfactory) video of my motor rotating back and forth attached.





Another question - as shown in the diagram here, will it be okay to take the +5v from the PS into a 13amp terminal block and distribute the power to the BOB and the drivers from there? I can't see why it wouldn't, but there's the duncery kicking in again...