I only have experience with the US machines which are 230 or 460 volts (yes, and 208). This was achieved with the transformer windings. Example I remember one transformer where one leg was coming in at 210V terminal and the other on the 20V terminal on the other side of 0. Thus added together they were 230. You can achieve 380 the same way, I hope.
Yes, if the oil gets low, the spindle will not turn on. The oil pump runs when the spindle is on. It lifts a plunger that falls off the end of a cam about every 20 minutes and gives the machine a shot of oil. If the float switch sees a lack of oil while the spindle is running, it allows the spindle to keep running untill the spindle is shut off (tool change, etc). This is done with a latching relay.
There are hard limit switches on each end of table/saddle travel which are wired in series with the axis enable circuit, and a ref/home switch on only one end. I hope it is homing in the correct direction.
I hope this helps, otherwise keep asking!
George
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(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
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