Spindle Grounding

Community Discussion 📄 General
1

I am just wiring in the shielded cable for my spindle. I have a braided ground shield which will be connected to the case of the plug at the spindle end. There is an extra wire in the bundle should I connect it to the ground shield? At the controller would I then be able to just use it for the ground, or would I still need to bind the shield braid?

If that seemed ambiguous, I have a 4 conductor shielded cable, I have 3 wires in use, what should I do with the 4th and the shield braid to ensure proper operation?

I am seeing lots of info but looking for a best practice that is know to be the most likely to work.

Thanx everyone

2

The shielded braid will, if connected, prevent your wires from recieving ore emitting inteference. That extra wire is an ideal one to connect the gnd to the spindle-body to get a more robust connection than just via the connector. You could then use that point as a gnd hub to ground other parts of your machine from.

If I had that option, I would def see if I could give that lazy ass wire an important job to do for the rest of its life.

3

Lazy Ass Wire… I love it.

Thank you I will put it to work. I will take your suggestion and ground both the spindle and the VFD controller.

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