I just assembled the Altmill and when setting up spindle I noticed it turns in the opposite direction on the command. The instructions just says to make sure it’s spinning the correct direction but does not address what to do it isn’t. After reading the VFD little book to death, on page 99 it says to change two of the 3 phase power wires (U,V,W) which is pretty normal for 3 phase motors. Is this right or is there a setting I’m missing somewhere. I didn’t really want to take all that back apart but I can. Anyone else had an issue with this. Thanks. Larry R.
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I will preface this by saying this is general information, not specific to the Altmill spindle, but for three phase motors (and my experience with this has been with a huge range of them) you are correct that when you need to reverse the direction, you just need to swap two of them at one end (that is, swap U for V, or whatever is convenient, at one end). I don’t have an Altmill or spindle, so I don’t know if the wires can be swapped at either end.
Short version - swap two motor wires, at one end (wherever convenient / possible). Hope that helps!
Pitting my Altmill together now and running into this issue. Thanks for posting but @Sienci should get the documentation updated.
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