Specialized Concentrated Focused
「
38
」
Operation
Parameter
Definition
Setting Range
caused by frequent acceleration and deceleration of
small segments
Length for limit max
velocity
It is used to tell whether the segment to be
processed belongs to “small line”
0.001~100000 mm
Path smoothing
time
Process path will shrink when slide time is too big
0~2 sec
Arc radius
tolerance
-
0~999 mm
Enable IJK
increment mode
If it is set as “True”, the coordinate of circle center is
relative to the start point; otherwise, the coordinate
of circle center is relative to workpiece origin.
True: Valid
False: Invalid
After installation of machine, users can make the machine process an arc, in which vibration will
occur due to centrifugal force. The higher the speed is, the stronger the vibration will be. Gradually
increase the feed speed to see the state of vibration of machine tool until the max. circular speed is
achieved, i.e. the max. allowable speed of machine tool without strong vibration. This arc is
regarded as the reference circle, and its max. allowable speed is the max. speed of reference circle.
Max. centripetal
acceleration “a” can be calculated in terms of the reference circle radius and its
max. speed. The formula is as follows: V
0
and R
0
are the speed and radius of reference circle
respectively, while Vx and Rx are the speed and radius of the arc to be processed. After Rx is
confirmed, when the arc processing speed is larger than Vx calculated, the system will limit the arc
processing speed automatically to ensure it is within the debugging value, i.e. the vibration will not
be stronger than that during ex-factory debugging.
2
0
x
x
V
V
a
R
R
2
0
In processing a circle with a small radius, even quite low feed speed of circle will generate very high
centripetal acceleration, thus the machining speed will be quite low caused by circle speed limit to
limit the centripetal acceleration. To ensure machining efficiency, when the speed calculated by the
system is lower than the setting value of parameter
“Reference circle speed”, which will be
regarded as the machining speed.
Related Parameters(Interpolation Algorithm)
Parameter
Definition
Setting Range
Max. angle of
joining high speed
The maximum connection angle. If the angle od
adjacent two lines is greater than this, the initial
velocity of the next line is always set as start-up
velocity
0~180 deg
Corner trace
pretreatment
options
-
0: Not disposed;
1: Curve smooth
2: Arc smooth
Corner tolerance
The corner trace pretreatment precisition
0~0.5
Connect speed
The distance used to calculate the connection
0~0.05 mm
