I have a VMC equipped with Fanuc OMC cnc, I am running on DNC this machine, although it is working but axis are in jerking movement (Commanded feed is 4000 but actual feed is 900 approx.) while axis are interpolating (Contouring). Even I had checked it's mechanical part but it's ok. I think cnc is reading nc file from pc but machine is not responding well. kindly help me out from this problem.
DNC parameters are as follows:
Baudrate 9600
Data bit 7
Stop bit 2
Parity even
handshaking software (Xon/off)
Is it a problem of handshaking?
or CNC system?
Please help me !!!!!!!!!!!!!!!!