
B--63003EN--1/02
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
556
⋅ When linear acceleration/deceleration before interpolation for
cutting feed is enabled
If the angle made by blocks A and B is smaller than that specified in
parameter No. 1740 (for the selected plane), and if the feedrates
programmed for blocks A and B are higher than the value set in parameter
No. 1778, the feedrate is reduced to the value specified in the parameter
in block A. In block B, the feedrate is increased to the programmed
feedrate. The rate of acceleration depends on the parameter for linear
acceleration/deceleration before interpolation for cutting feed.
Speed
Block A Block B
Time
Speed set by
parameter
(No. 1778)
#7
1601
#6
ACD
#5 #4 #3 #2 #1 #0
[Data type] Bit
ACD Function for automatically reducing the feedrate at corners (automatic
corner deceleration function)
0 : The function is not used.
1 : The function is used.
#7
1602
#6 #5 #4
CSD
#3 #2 #1 #0
[Data type] Bit
CSD In the function for automatically reducing a feedrate at corners,
0 : Angles are used for controlling the feedrate.
1 : Differences in feedrates are used for controlling the feedrate.
1740 Critical angle subtended by two blocks for automatic corner deceleration
[Data type] Two--word
[Unitofdata] 0.001 deg
[Valid data range] 0 to 180000
Set a critical angle to be subtended by two blocks for corner deceleration
when the angle--based automatic corner deceleration function is used.
The angle subtended by two blocks is defined as θ in the examples shown
below.
D Pa ra meter