Need helpwiring up from scratch

[GeorgeD]

Hi Irving

Are you the only techie on here?

Ok I'll peform some steps(bad pun) later on today as I need a rest from this.

I figure it just might be the bob as the charge pump led come and goes as does the power led,this board is basically naff because what happens is the led without pwer supply attached to 70v rail,glows dimly and when you attach the power supply its bright,I never known a piece of equipment that functions on the power side like that.

The charge pump led comes on and goes off when I reboot the computer ie it comes on just as it boots into the initialising screen and then goes out when windows is about to boot.

[GeorgeD]

What settings do you have for steps/mm, acceleration and step pulse width (should be at least 5).

This step and pulse does it automatically calculate the required number or have we to put it in?

Just had a quick browse of this PDF file http://www.kelinginc.net/Mach3Tutorial.pdf of setting up Mach3 and I can't work out the required parameters.

[John S]

Hi Irving

Are you the only techie on here?

Ok I'll peform some steps(bad pun) later on today as I need a rest from this.

I figure it just might be the bob as the charge pump led come and goes as does the power led,this board is basically naff because what happens is the led without pwer supply attached to 70v rail,glows dimly and when you attach the power supply its bright,I never known a piece of equipment that functions on the power side like that.

The charge pump led comes on and goes off when I reboot the computer ie it comes on just as it boots into the initialising screen and then goes out when windows is about to boot.

You need to step back and check thru logically, read up on what you can and if you can't understand anything ask first.
Don't start experimenting as that the way to damage components.

It only takes one crossed wire to damage a component.

Wire up the power supply and test it.
Make sure you know which is positive. and what voltage it's putting out.
Then connect this to the BOB, Do you have a power light ? are you getting 5 volt and 12 volt from the auxiliary supply points at the side of the power in ?
Connect the power supply to the drivers, do you get the power on LED lit up ?

Now connect the steppers to the drivers taking note of how they need to be wired.

Do the stepper clunk and lock on switch on ?

That proves the power side first.

As an aside what computer are you using ? and does it have an inbuilt parallel port or an add on card.?

There is nothing wrong with Roy's boards, I have fitted well over 70 - 80 different models and never had any trouble with them.

[FatFreddie]

I figure it just might be the bob as the charge pump led come and goes as does the power led,this board is basically naff because what happens is the led without pwer supply attached to 70v rail,glows dimly and when you attach the power supply its bright,I never known a piece of equipment that functions on the power side like that.

My System 4 board does that as well so I don't think that's the problem, as Irving says, it's just picking some power up from the parallel port.

If it's the same as the System 4 board then the charge pump LED should be on when it's powered and there is a signal on the charge pump pin (provided by Mach3) so that all sounds ok as well.

I'm afraid I don't use Mach3 so I can't help with configuring that.

Good luck!
Mark