
B-63790EN/01 4.DESCRIPTION OF PARAMETERS
- 271 -
Parameter Nos. 5884 to 5894 are used to change the cutting feed
acceleration/deceleration time constant/FL feedrate on the hole
machining axis in rigid tapping according to the S command. These
parameters set the time constant (TCx) /FL feedrate (FLx) at each
level and the spindle speed (Sx) to set levels. The following show the
relationship between the S command and FL feedrate, the relationship
between the S command and actual acceleration/deceleration time in
linear acceleration/deceleration, and the relationship between the S
command and actual acceleration/deceleration time in exponential
acceleration/deceleration:
Spindle speed command S FL feedrate
S ≤ S1 FL1
S1 < S ≤ S2 FL2
S2 < S ≤ S3 FL3
S3 < S FL4
Relationship between S command and FL feedrate
Acceleration/deceleration time
TC4
TC3
TC2
TC1
S1 S2 S3 S command
Relationship between S command and
actual acceleration/deceleration time
in lin
r
l
r
i
n
l
r
i
n
Acceleration/deceleration time
TC4
TC3
TC2
TC1
S1 S2 S3 S command
Relationship between S command and
actual acceleration/deceleration time
in exponential acceleration/deceleration