
B–63833EN–1/02
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
311
#7
1403
#6 #5 #4 #3 #2 #1 #0
MIF
[Data type] Bit
MIF Cutting feedrates at feed per minute is specified by F commands
0 : In units of 1 mm/min for millimeter machines or 0.01 inches/min for
inch machines.
1 : In unit of 0.001 mm/min for millimeter machines or 0.00001
inches/min for inch machines.
NOTE
M series does not use this parameter. Cutting feedrates are
specified by F commands in units of 0.001 mm/min for
millimeter machines or 0.00001 inches/min for inch
machines.
#7
3401
#6 #5 #4 #3 #2 #1
FCD
#0
[Data type] Bit
FCD When an F command and a G command (G98, G99) for feed per minute or
feed per rotation are specified in the same block, and the G command
(G98, G99) is specified after the F command, the F command is:
0 : Assumed to be specified in the mode (G98 or G99) when the F
command is specified
1 : Assumed to be specified in the mode of the G command (G98 or G99)
of the same block
NOTE
1 When FCD = 1:
If the block containing a G command (G98, G99) does not
include an F command, the last F command specified is
assumed to be specified in the G command mode of the
block.
Example 1: N1 G99 ;
N2 Faaaa G98 ;
- Faaaa is assumed to be specified in the G98 mode.
N3 Fbbbb ;
- Fbbbb is assumed to be specified in the G98 mode.
N4 G99 ;
- Fbbbb is assumed to be specified in the G99 mode.
2 In G code system B or C, G98 and G99 function are
specified in G94 and G95.
Parameter