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Messages - Superllanboy

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Hi tweakie,

So how would I get a signal that my servois are powered?
Is it simply a case of assigning a PIN number to enabled and then using that to activate a relay and then the brake?

I'm not clear on how the enabled signals in Mach work


Hi tweakie

It's a pity that all the manuals with these products are so inadequate and Bradley written, with little if any support from the vendors
It makes figuring things out so much more diffucult, but thanks to guys like you and forums like this, we can usually muddle our way through.

Which brings me to my next difficult question, which is along similar lines.

I need to fit a z axis brake to my machine , and control it from the Xhc card.
My servo drives don't use an enable signal, so I'm wondering how I can realise the brake prior to every z axis move.
Is there a macro that I can add an output call too that will be called before each Z, or is it only necessary to lift off the brake as soon as the servos have power .

Can you suggest how I might hook this up

Many thanks

You are a genius
Works like a charm
Thanks for saving me from hours of head scratching


Can anyone please advise how I can assign 2 output pins to activate from M4 in Mach .
My problem is that the sangmutan drive needs two pins to go active low to reverse the spindle.

Specifically I've connected DCM on my Xhc card to GND on connector CN15 on the drive control
I've connected FWD on the Xhc to S/P on the drive,
And I have connected REV on Xhc to F/R on the drive,

FWD is controlled by M3
REV is controlled by M4

However when I use M4, I also need to have S/P on the drive to get a signal as if I'd commanded M3

Hopefully my explanation is adequate, and somebody can advise, but essentially I need to activate FWD and REV simultaneously on my Xhc control using the M4 command in Mach

Any suggestions please?


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