4. FEED FUNCTIONS
Feed rates of linear interpolation (G01), and circular interpolation (G02,
G03) are commanded with numbers after the F code.
In cutting feed, it is controlled so that speed of the tangential direction is
always the same commanded speed.
Cutting feed rate upper limit can be set as parameters. If the actual cutting
feed rate (feed rate with override) is commanded exceeding the upper
limit, it is clamped to a speed not exceeding the upper limit.
An upper limit is set in mm/min or inch/min.
With the per minute feed mode G94, tool feed rate per minute is directly
commanded by numerical value after F.
Least command increment Cutting feed rate range
0.001mm, deg 1 to 240000mm/min, deg/min
0.0001mm, deg 1 to 100000mm/min, deg/min
0.0001inch 0.01 to 9600.0inch/min
0.00001inch 0.01 to 4000.0inch/min
The above feed rates are limits according to the NC’s
interpolation capacity. When the whole system is
considered, there are also limits according to the servo
system. For details, see Appendix A.
CUTTING FEED RATE
Cutting Feed Rate
Per Minute Feed (G94)