Machsupport Forum

Mach Discussion => Mach4 General Discussion => Topic started by: Bill_O on March 26, 2024, 08:18:07 AM

Title: input to stop machine
Post by: Bill_O on March 26, 2024, 08:18:07 AM

We have a new machine and I am going to be putting a pressure sensor on so if the air pressure gets too low the machine will stop.
What would be the best place to put the code?
PLC Script?
Signal Script?
Any other place?
Open to any ideas.

Thanks,
Bill

Title: Re: input to stop machine
Post by: Graham Waterworth on March 27, 2024, 10:59:15 AM

Why not just wire it through the e-stop circuit.

Title: Re: input to stop machine
Post by: Bill_O on March 28, 2024, 02:49:34 PM

Graham,

Perfect.

Thanks

Title: Re: input to stop machine
Post by: MN300 on March 29, 2024, 09:05:40 AM

If the air pressure drops slowly enough a pressure switch could signal the impending problem with enough time to stop the machine with the feed hold. This would allow you to continue once pressure is reestablished.

Title: Re: input to stop machine
Post by: Cbyrdtopper on May 06, 2024, 09:21:21 AM

MN300
We use a pressure gauge that gives two outputs at different pressures.  We set a Low Air Flag that turns on the red light to the machine but allows the machine to run still, but the No Air Flag will e stop the machine.  I handle this code in the PLC Script.

Title: Re: input to stop machine
Post by: KatzYaakov on June 25, 2024, 05:16:42 AM

we always put in our machine emergency first loop with safty device that cheack some first condition and its must confirm before give mach on
this we do only in PMC ,its litle complex becaus in pokeys you cant use input in both pmc and lua you must not overlap but after you learn how use it its good