Hi,
I have a 2.2kw 240v single phase in, and 240v 3 phase out Powtran Pi9000 vfd, and also an ESS smoothstepper board, the problem I have is I want to control the speed of the 3phase motor on my lathe with mach4 using the M3 and S command.
What I have done so far is use the 10v analog output on the ESS board to the vfd, when I type different speeds into the MDI screen on Mach and run it the voltage changes going into the vfd, I can change anywhere fron 0v to 9.8v depending in the speed setting, so I know that the input from mach to the ESS board is working and from the ESS to the vfd is ok.
I have the vfd set to terminal input instead of control panel and also the have the A13 analog input on the terminal board set as voltage input, when I try to get the motor to work with the different speed settings in mach the motor will not start. I have read the manual but I can't figure it out,I guess I have to change more settings but I am not sure which one's.
If someone can help I would be very grateful.