
B--63003EN--1/02
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
568
CAUTION
1 When 0 is set in parameter No. 1770 or parameter No. 1771,
linear acceleration/deceleration before interpolation is
disabled.
2 In parameterNos. 1770 and 1771, set values that satisfy the
following: Parameter No. 1770/Parameter No. 1771
≥5
1777
Minimum speed for the automatic corner deceleration function
(for the advanced preview control)
[Data type] Word axis
Valid data range
ncrement system
n
to
ata
I S --- A , I S --- B I S --- C
Millimeter machine 1 mm/min 6 -- 15000 6 -- 12000
Inch machine 0.1 inch/min 6 -- 6000 6 -- 4800
Rotation axis 1 deg/min 6 -- 15000 6 -- 12000
Set a speed at which the number of buffered pulses in deceleration is as-
sumed to be 0 when linear acceleration/deceleration before interpolation
is used.
1779
Critical angle subtended by two blocks for automatic corner deceleration
(for the advanced preview control)
[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.
Block A (G01)
°
°
Angle subtended by two
straight lines
Block A (G02)
Block B (G01)
Block B (G01)
Angle subtended an arc tangent
and straight line
[Unitofdata]
[Valid data range]