Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: racear2865 on February 27, 2010, 09:37:24 AM

Title: Alarm From VFD
Post by: racear2865 on February 27, 2010, 09:37:24 AM

Hi All
I am wiring in the VFD to Mach and I have a question that is perplexing me. I want to make sure I wire in an alarm from the VFD that will shutdown the system if one occurs. Any suggestions.
racear

Title: Re: Alarm From VFD
Post by: Hood on February 27, 2010, 10:47:46 AM

Wire it in series with your E-Stop button input to Mach, if its a higher voltage than 5v or if its a normally off signal then use a relay with NC contacts.

Hood

Title: Re: Alarm From VFD
Post by: M250cnc on February 27, 2010, 11:03:50 AM

The way i did mine is the VFD has a relay built in that is closed when the VFD is operating correctly

So i run my enable through that relay, so in the event of VFD shutdown i get an Estop

Phil