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Author Topic: Alarm From VFD  (Read 3133 times)

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Offline racear2865

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Alarm From VFD
« 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
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Offline Hood

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Re: Alarm From VFD
« Reply #1 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
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Offline M250cnc

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Re: Alarm From VFD
« Reply #2 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
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