AM882 works with Protune - but not with the ZPA5-INT BOB

[Gary]

Email me how you have wired it up.
I should be able to get back to you today?

Are you powering the zp5A from an external 5V power supply or the USB?
If USB, my suggestion is dont.
ALso take a vid of you jogging an axis so i can see the problem.

[badgerman]

legend - im on it.

[badgerman]

ok, email on its way.

I think that anyone browsing this thread should be suitably impressed that you get a response on a bank holiday - a testament to your operation. It is greatly appreciated.

Chris

[JAZZCNC]

Might sound bit obvious but you've not just tuned motor wrong in the control software are you.?

Like Gary says without seeing wiring or what exactly it's doing it's hard to say anymore.

[badgerman]

Motor tuning is ok as I am moving the stepper perfectly with the Pro-tune software. It is only when the control board takes over does it go wrong.

[badgerman]

It says in the manual that erratic movement can be caused by weak signal or interference. How can I check for this?

[JAZZCNC]

It says in the manual that erratic movement can be caused by weak signal or interference. How can I check for this?

You'll need an oscilloscope to do it properly but chances are you have just got something wrong with wires or settings.
Your not trying to run this with a Laptop are you.?
Where did you get the PP cable.? . . It must be a straight thru cable not an old printer or serial cable.

Regards the motor tuning then that's nothing to do with Drive settings it's the control software sending out pulse's and if you motor tuning is set to high you could be getting stalling motors.?

This will most likely turn out to be something simple like dodgy wire or wrong settings. Would be very unlikely you'll have electrical noise issues. The drives clearly work fine has do motors so they are ok and wired correct.

It could be PC related like low voltage parallel port, unfortunately don't know anything about your BOB so unsure if it pulls signals high or not.?

Sorry can't be more help than this.!!

EDIT: Oh if your using Mach3 then try the PP driver test to check your PP port.
If still having trouble and can't see any thing else wrong with wires, drives etc then sometimes a reinstall can help. It's not unknown for Mach's XML file to get corrupted and cause daft issues like this.!!