help me pleace

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help me pleace

Postby dmatta » 11 Jan 2018, 20:31

Hi recently bought a longevity 40D plasma for make my cnc ruter to plasma, but wen try to cut my usb dosent work or disconect, pleace some one that know how can I fix this problem.

thanks a lot for your answer.
Posts: 2
Joined: 11 Jan 2018, 20:21

Re: help me pleace

Postby Support » 24 Jan 2018, 09:23

All symptoms that you described earlier are indicating problems caused by a electromagnetic interference: ... terference

This occurrence interferes with the USB communication, which as a results drops and communication between controller and PC is terminated.

You see, electro motors, VFDs etc...are sources of EMI and therefore your wiring and other devices should be properly shielded and filtered. You would need to use shielded cables and use line filters for VFD. Also controller needs to use external power supply for its stable operation. ... lerMk3.pdf (page 32)

Try this:
run your machine but without the spindle turned on. Try just air cutting your piece so that we see if spindle and its interference is to blame.
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