Good Afternoon All,

I have decided to utilize the DMM NEMA 34 and DYN 4 servo drives for my Bridgeport Series 1 Retrofit, These drives can be powered by either by 120V or 240V, from what I'm understanding the voltage effects the overall maximum RPM's, 3000 for 120V and up to 5000 RPM's for 240V. Currently the only available 240V that I have is for the 2.0 HP spindle in a high voltage cabinet on the back of the machine, the CNC cabinet, the one on the side of the machine only utilizes 120V. To utilize 240V, I will have to install another breaker in my box and upgrade all of my current contactors, will the cost out weigh the benefit? Since I have a series 1 Bridgeport, how much gain would I get from utilizing the 5000 RPM's? I normally don't run this machine at a very fast rate, no more than 200 ipm, I know that some recommend not running this type of machine any faster than 300 ipm.

What other benefits would I see by stepping up to the 240V?

Thanks,