Hey all, especially VFD/spindle beginners,
(hey Olan, I don’t suspect that you have made these things wrong, but I take the opportunity to comment what I have seen on that page)
this is obviously the cheap chinese offer ASIN B01N1EJEQ1. On the page, there is a video that intends to show how you program the VFD and then how you connect the spindle.
Don’t use that video! Don’t do this at home!
Don’t think you are done with spindle installing and VFD programming by watching such a video!
One good rule that I can recommend is: Don’t make any settings on a VFD that you don’t know what they mean. But also don’t plug it in without making sure you’ve programmed everything mandatory (and correctly too).
Always first know what you are doing. Please always remember that when connecting spindles and VFDs, you can burn down your house or seriously injure yourself.
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The video shows connecting the VFD to an outlet with a 2-wire/2-pin plug.
Don’t do this!Never use two-wire/two pin plugs for a device that visibly has an earth contact!
Use only three-wire/three-pin plugs between wall outlet and VFD! -
While some settings are shown in the video, the settings that are mandatory for the correct installation of a spindle are not made, let alone checked. Failure to do so may damage or destroy your spindle and/or VFD!
For a quick explanation on how to program these mandatory settings on any VFD please click here! -
The video shows connecting the spindle with three wires, omitting ground.
Don’t do this!Always wire the fourth contact of the spindle to ground on VFD, and always make sure that from VFD it is connected to ground on your wall outlet as well!
Use only four-wire connection (3+PE) between VFD and spindle!
Use only three-wire/three-pin plugs between wall outlet and VFD! -
Furthermore the video shows clamping bare stranded wire ends, or even worse, soldered wire ends into a screw terminal. Don’t do this! Especially screwing down a soldered wire end is dangereous since the screw by its pressure destroys the internal cristalline solder structure.
On all power wires and terminals (=on input wire from wall outlet and on the connection between VFD and spindle), always use the connectors described in your VFD manual, which are likely to be either ring connectors or wire ferrules (depending on model)!