(07-21-2015, 07:19 AM)turbo711 Wrote: Hello Dallen. I live in a residential area and the options are 120v and 240v single phase. The 3 phase option would require a city electrical truck to come out and install more equipment at a high cost. In Canada, 3 phase wiring is mostly for industrial applications and zoning. The lathe wiring was already set up for 240v single and I am using 24 volt coils because that is what is there already. The transformer beside the contactors outputs 24v for the coils. Your lucky to have the 3 phase option down there!
Mark
I think Mayhem was the one asking why the 24 volt coils.
Not all things are done the same way in every country. The control wiring that we used where I used to work was all 110 volt, with low voltage DC used for signals to and from some limits like slidewires.
Its the way the Chinese wired it, nothing says that it can't be changed to use 110 volt control voltage, but its also a safety with the wires being ran in close proximity to the gears in the headstock and leadscrews.
dallen, proud to be a member of MetalworkingFun Forum since Apr 2012.
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