
B--63003EN--1/02
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
642
1626
Time constant of exponential acceleration/deceleration
in the thread cutting cycle for each axis
[Data type] Word
[Unitofdata] ms
[Valid data range] 0 to 4000
Set the time constant used for exponential acceleration/deceleration in the
thread cutting cycle (G76, G78 (G92 in G code system A)) for each axis.
1627
FL rate of exponential acceleration/deceleration in the thread cutting
cycle for each axis
[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
Rotaio n axis 1 deg/min 6 -- 15000 6 -- 12000
Set the lower limit (FL rate) of exponential acceleration/deceleration in
the thread cutting cycle (G76, G78 (G92 in G code system A)) for each
axis.
1722 Rapid traverse feedrate reduction ratio for overlapping rapid traverse blocks
[Data type] Byte axis
[Unitofdata] %
[Valid data range] 0to100
This parameter is used when rapid traverse blocks are arranged
successively, or when a rapid traverse block is followed by a block that
does not cause movement. When the feedrate for each axis of a block is
reduced to the ratio set in this parameter, the execution of the next block is
started.
NOTE
The parameter No. 1722 is effective when parameter No.
1601 #4 (RTO) is set to 1.
[Unitofdata]
[Valid data range]