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Mach4 response vs Mach3
« on: February 23, 2015, 03:47:15 PM »
Hi,

I just finished retrofitting my Southwestern Industries Prototrak mill with a kit from Machmotion. The kit came with Mach3 and now they are offering Mach4 as an upgrade.

I am running my spindle motor through a VFD. There is a 2 to 3 second delay in reversing the motor by clicking on the reverse button on Mach3. Can anyone tell me if I would get a significantly faster response with Mach4 when clicking on the reverse button?

Any response would be greatly appreciated.

Thanks,

Randy

Offline BR549

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Re: Mach4 response vs Mach3
« Reply #1 on: February 23, 2015, 04:10:04 PM »
The delay could be either a parameter setting in the VFD(delay before reversal) or a delay setting in the M3/M4 itself.

Otherwise the Spindle should reverse instantly. The Spindle may NOT like that at full RPM.

(;-) TP
Re: Mach4 response vs Mach3
« Reply #2 on: February 23, 2015, 04:35:37 PM »
Thanks for the quick response. I don't think that it is the VFD. I was using the VFD with a manual switch before the retrofit. It must be in the Mach3 settings. I know that this is a Mach4 forum but do you know where in Mach3 that setting would be?

Thanks again for your help,

Randy

Offline BR549

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Re: Mach4 response vs Mach3
« Reply #3 on: February 23, 2015, 06:07:48 PM »
Goto Port & Pins then spindle setup. Bottom center .

You may want to talk with MachMotion about teh delays. Some are set to protect the VFD.  Some drives cannot take full reserval at full speed. It will blow the final out of it from BackEMF.

(;-) TP
« Last Edit: February 23, 2015, 06:09:38 PM by BR549 »
Re: Mach4 response vs Mach3
« Reply #4 on: February 23, 2015, 08:57:26 PM »
Hi,

I changed the settings in ports and pins and that worked.

Thank you very much for your help,

Randy