Originally Posted by
jxdxwx
Mike,
Sorry, your answer only brings more questions....
I understood C8 to be 'REMOTE ENCODER INPUT' as it is marked.
With it not being connected on my original setup I assumed it was
because my servos have resolver input (on C2) and C8 is where the
encoders would be connected if my motors had encoders instead ???
*** no (: C2 is where your FEEDBACK goes; hence ur resolvers (or encoders if your drive were an encoder drive - you did not give drive part no so I can only assume it is a SR-xx or CR-xx something... assuming is not good....
Is opmode 4, electronic gearing what I need to set on the drives?
** yes if you want to use pulse dir input on C8
"of course step/dir requires position mode" <----- what does this
mode (or any mode for that matter) actually mean?
**ur drive can be torque (current) mode, velocity mode, position mode, or gearing mode.....
If everywhere else
on this website (and others) says drives must be in current/torque
mode for milling machines/routers, and if I need position mode just
to get Mach3 to communicate am I defeating the purpose of using
the drive for CNC cutting operation?
***no, the wording is just confusing. remember, mach3 is a low cost cnc thingy.... normally it would work in current mode apparently; but the MINUTE the INSTANT you send STEP data to a drive, that drive needs to close the POSITION LOOP. How can a drive in current mode move a given STEP DISTANCE? of course it cannot. to move a STEP DISTANCE - DISTANCE - it has to be in position mode. That takes 99% of the smarts out of the mach3 and puts it into the drive - lets the little thing work that way.
Thank you for the help.
**your welcome. call me and I can make it clear.
John