Hello to all and thanks for the help (in advance),

I am retrofitting an EMCO Compact 6 lathe. Also will be retrofitting an EMCO Turn 120P. Both currently have the original 5-phase stepper motors. I found some very nice amplifiers, but the problem is that they need some odd controlls. They do not take the normal step / direction signals. The amplifier asks for two inputs... 1) step forward 2) step reverse. I know this is also the scenario for some Super Vexta drives. I have been treating this drive as if it were a UDX5128 Super Vexta drive. The connections are near exactly the same. My problem is that my drive does not have a switch setting to convert it to step direction from 2-pulse system.

Does Mach3 have a configuration setting to allow it to control the step-FWD and step-REV drive logic as I have?

Does anyone have a "good" suggestion for how I can resolve the problem.?

My amplifier is a PACK DRIVER AK-BX550P. I know some other people have had some problems using the "PACK DRIVER" products from ASAHI Engineering (Japan), but I got mine to work fine (so long as they take the intended command signals).

Thank You,

Ray Scott