No
Actually i thought to use PWM to analog convertor but found Step/Dir pulses are not PWM. Now what i understand is, Step Pulses are fixed width pulses but with having varying distance between pulses. isit correct? Now what i think to test is - give this step pulse to PLC as Input, program PLC in such a way that it will generate output for this distance between pulses. This will be almost PWM pulses, and then use PWM to analog converter. Do you think this will work?
One more thing - If this all not work, is it possible that i set speeds of drive manually and preset them with External POT and feed those data to MACH. After all MACH doesnt look whether motor is running or not, then can i use fixed setpoint to my drives and just start stop control with MACH
My machine is too old and having motors of 20Hp and 40 Hp so replacing drives will cost me much.
Whats your suggestion on this?