
B–63523EN–1/03
9. SPINDLE SPEED FUNCTION
1199
The time required in bell–shaped acceleration/deceleration for rigid
tapping is the sum of the linear acceleration/deceleration time constant
(value set in the conventional parameter) for the spindle and tapping axis
and the time (value set in the new parameter) for a curved section.
T2
2
T1
T2
2
Spindle rotation speed
Maximum permissible
spindle rotation speed
Time
T1 = linear acceleration/deceleration time constant for the spindle and tapping axis
T2 = time constant for a bell–shaped acceleration/deceleration curved section
T1 + T2 = time required in acceleration/deceleration
The actual linear acceleration/deceleration time constant, T1, for the
spindle and tapping axis is determined according to the ratio of the
maximum permissible spindle rotation speed to the actually specified
value S. The bell–shaped acceleration/deceleration time constant for the
curbed section is not proportional to the actual S command. Instead, the
bell–shaped acceleration/deceleration is kept constant (value specified in
the parameter).
#7
5203
#6 #5
RGBEL
#4 #3 #2 #1 #0
[Data type] Bit
RGBEL Specifies the type of acceleration/deceleration to be applied to rigid
tapping feed, as follows:
0 : Bell–shaped acceleration/deceleration
1 : Linear acceleration/deceleration
About bell–shaped
acceleration/deceleration
Parameter