
4. DESCRIPTION OF PARAMETERS
B–64160EN/01
54
1625 FL rate of exponential acceleration/deceleration in jog feed for each axis.
[Data type] Word axis
[Unit of data]
[Valid data range]
Valid data range
ncremen
sys
em
n
o
a
a
IS-A, IS-B
Millimeter machine 1 mm/min 6 to 15000
Inch machine 0.1 inch/min 6 to 6000
Rotaion axis 1 deg/min 6 to 15000
Set the lower limit (FL rate) of exponential acceleration/deceleration in
cutting feed for each axis.
1710
Minimum deceleration ratio (MDR) of the inner circular cutting rate in automatic
corner override
[Data type] Byte
[Unit of data] %
[Valid data range]
1 to 100
This parameter sets the minimum deceleration ratio (MDR) when the
inner circular cutting speed is changed by automatic corner override.
In circular cutting with an inward offset, the actual feedrate for a specified
feedrate (F) is expressed as follows:
Rc: Radius of the path of the cutter’s center.
Rp: Programmed radius
F
Rc
Rp
Then, the actual feedrate is controlled so that the feedrate on the
programmed path can achieve the specified feedrate F.
Rp
Rc
Path of the
cutter’s center
Programmed path
Fig. 4.13 (a) Rp and Rc
If Rc is too small in comparison with Rp, such that Rc/Rp 0, the cutter
will stop. To prevent this, a minimum deceleration ratio (MDR) is set.
1711 Angle (θp) used to recognize an inner corner in inner corner override
[Data type] Byte
[Unit of data] Degree
[Valid data range] 1 to 179 (standard value = 91)
This parameter sets the angle used to recognize an inner corner for inner
corner override by automatic corner override.