Vfd 2.2kw spindle and tool z probe issue

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2 years 6 months ago #297390 by Lpkkk
Hi 
I've got 2.2kw spindle and hy vfd. Vfd is connected via modbus. Whenever I connect my probe to the milling cutter, my probe parport port input goes to true. I can still measure my tool with vfd switched off 

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2 years 6 months ago #298198 by zmrdko
My first guest would be EMI. Do you use shielded cables?

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