What is the best way to e-stop a spindle with a VFD. Should I simply kill the power to the entire unit or is the a better way? Thanks

Hey Martin, [image] Martin: What I’m not sure how to handle is if I route the power to the VFD (mostly likely with a really that can handle 3 phase power) and I hit the e-stop on the control panel how do I prevent the VFD from turning off. If you use what I described above in case of fire, t…

I want two things A) big red button to kill power to everything. This is incase of fire or smoke. Maybe best to simply wire a magnetic switch as the main on/off for the controller and VFD. B) This is me being lazy and wanting to use the Control Panel to turn the FVD on/off. I understand it is desi…

Hey Martin, thanks for explanation, now I understand better. I think it can be done the way you want and it’s not that complicated. Unfortunately today I have no time, I will come back later!

Hey Martin, thanks for explanation, now I understand better. [image] Martin: A) big red button to kill power to everything. This is incase of fire or smoke. Maybe best to simply wire a magnetic switch as the main on/off for the controller and VFD. Yes, that is what I think is the best for t…

I didn’t do a good job explaining. I only want to use the Control Panel as a on/off powers switch for the VFD, not to turn the spindle on/off If I use a smart relay I can turn power on from the control panel and only turn the power off when the spindle is at zero AND the control panel is off. This…

I have been looking into this while waiting for my VFD to arrive. From what i understand the biggest benefit in our use case is that we can safely decrease the deceleration time of our spindle without tripping an over current. This would be particularly helpful when an Estop is activated at high spi…

Hey Martin, [image] Martin: I have another question and I’m promise to stop. No need to stop as long as things remained unclear or help is useful for you :slight_smile: [image] Martin: When adding a breaking resistor do you still need to worry about a controlled e-stop or does the braki…

Aha! I keep forgetting the control panel is smart. I will keep that in mind as I move forward. Next step is to find relays for the dust collection as it 220V. Thanks

The VFD I have does allow for a breaking resistor, 300 watt, 100 ohm. I will get that ordered and may ask some question related to settings when using them. Their seems to be quite a few parameters involved. Thanks Matti

Best way to e-stop spindle and VFD?

Spindle/VFD (Aftermarket/Unsupported)

349iq2345 February 6, 2022, 5:47pm 22

Hey Matti,

there is some information on the relays used inside Control Panel here and here

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Best way to e-stop spindle and VFD?

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