B–63980EN/01
4. DESCRIPTION OF PARAMETERS
49
NOTE
Depending on the setting value of the time constant, the rate
slightly lower than the rapid traverse rate may be applied for
a given period of time while reaching the rapid traverse rate
after acceleration. To work around this problem, set a
multiple of 8 as the time constant.
<Rapid traverese linear acceleration/deceleration>
Speed
Rapid traverse feed rate
Time
T: Time constant for linear
acceleration/deceleration
T
T
1622
Time constant of exponential acceleration/deceleration in cutting feed for each
axis
[Data type] Word axis
[Unit of data] ms
[Valid data range] 0 to 4000(exponential acceleration/deceleration in cutting feed)
Set the time constant used for exponential acceleration/deceleration in
cutting feed in cutting feed for each axis. Except for special applications,
the same time constant must be set for all axes in this parameter. If the
time constants set for the axes differ from each other, proper straight lines
and arcs cannot be obtained.
1623 FL rate of exponential acceleration/deceleration in cutting 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 0,6 to 15000
Inch machine 0.1 inch/min 0,6 to 6000
Rotaion axis 1 deg/min 0,6 to 15000
Set the lower limit (FL rate) of exponential acceleration/deceleration in
cutting feed for each axis.
NOTE
Except for special applications, this parameter must be set
to 0 for all axes. If a value other than 0 is specified, proper
straight lines and arcs cannot be obtained.