How to wire the enable pin on a stepper drive?

[cncJim]

Hi All,

Maybe a stupid question but I really don't want to fry anything! Can someone tell me how I should connect the enable pins on my stepper drive?



The drive has an ENA+ and ENA- but my BoB only has an ENA-.

Thanks,
Jim

[JAZZCNC]

What Bob is it Jim.? . . . . Also do you realise you don't have to use the enable on the drive if you don't want to. ?

[cncJim]

Hi Jazz,

Sorry its not so clear in the image I uploaded is it...

Its a pcpps bob
http%3A%2F%2Fwww.diycnc.co.uk%2Fforms%2FPCPPSV3.pd f
And the drive is a leadshine m752.

I have been running without using the enable function (nothing connected on the drive) but i wanted to understand how it could work really.

Cheers,
Jim

[JAZZCNC]

Yes I had a feeling it was PCPPS.

just take Ena(+) on drive to Ena pin on BOB and Ena (-) on drive to Gnd on BOB. You'll then have to set the Enable output in mach and tell it which pin number.

[cncJim]

Great, thanks for that Jazz I will give it a go. :)

Follow up question, should there be a power up order for the PC, BoB, stepper drives, Vfd etc?

Cheers,
Jim

[Clive S]

Great, thanks for that Jazz I will give it a go. :)

Follow up question, should there be a power up order for the PC, BoB, stepper drives, Vfd etc?

Cheers,
Jim

It is always good to power the PC up first the BOB and Drives would come on together and it is optional for the VFD as you might want to get the holding down and zeroing done before powering that up.