I would say you have two possibilities there, either, as you say provide another transformer for the present control txfmr, or fire it up and see what the voltage is from green and brown to the third wire, if it is 50% of the voltage to the other two then it may be a 240v connection.
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. |