Hi everyone, I have a Fadal 4020 VMC running off Kflop/Kanalog combination, using origional motor drives. I just bought a rotary 4th axis for it. I bought the 4th axis used, with no servo so lots of options with that.

Im wondering if i need to do analog control from Kanalog for my 4th axis and tune PID settings the same as my other axes, or can i use step and direction output from the kflop board? Can I do a combination or do i need to go all analog?

Any suggestions on a good value small servo? I think i need something in the 3-4 N-M peak torque range. Sort of looking at a DMM Tech 400w AC servo. This can take step/dir or +/-10v input. Would it be simpler to just use step/direction and let their software do the tuning? Its just a 4th axis, most times simply indexing and then sitting there so perfect tuning probably isn't super critical. Any suggestions? Thanks.

Mark

Hi Mark,

You can mix Analog and Step/Dir drives.  There are some pinout/connector limitations.  See:

http://dynomotion.com/faq.html#third_party_step

Regards

TK

 

Hi everyone, I have a Fadal 4020 VMC running off Kflop/Kanalog combination, using origional motor drives. I just bought a rotary 4th axis for it. I bought the 4th axis used, with no servo so lots of options with that.

Im wondering if i need to do analog control from Kanalog for my 4th axis and tune PID settings the same as my other axes, or can i use step and direction output from the kflop board? Can I do a combination or do i need to go all analog?

Any suggestions on a good value small servo? I think i need something in the 3-4 N-M peak torque range. Sort of looking at a DMM Tech 400w AC servo. This can take step/dir or +/-10v input. Would it be simpler to just use step/direction and let their software do the tuning? Its just a 4th axis, most times simply indexing and then sitting there so perfect tuning probably isn't super critical. Any suggestions? Thanks.

Mark