Just step back and think about this for a moment, lets assume that the main load for the robot power is the motors. Fanuc motors are pretty efficient, so, if you are going to replace them with equal or greater torque assuming they are as efficient as the Fanuc motors, the required (supply) power is going to be the same or greater. Now do you plan on aiming for 40amp at 240 volts? In any event that is no where near 27Kw, so how did the company come up with that figure?
You have the machine, so look at the size (va) of the power required for each servo amp, fusing etc. And attempt to calculate the actual power required.
Agreed the fusing will be doubled for 230 and also you may have to increase wire size where necessary to the transformers, but this is minor compared to a retrofit. Likewise if you find that the power required is within reasonable limits, it is not hard to build your own rotary converter. (see one of my recent posts).
If the robot was working when you purchased it, I would be inclined to persue this route first.
Al
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CNC, Mechatronics Integration and Machine Design.
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E. |