
B–64113EN–1/01
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
397
Expressions 1, 2, and 4 are approximate expressions. This means that, as
the arc radius becomes smaller, the approximate precision lowers.
Therefore, even when the feedrate is clamped to the maximum
permissible speed v obtained from expression 3, the permissible error
may be exceeded.
1730 Maximum feedrate for arc radius R
[Data type] Word
Valid data range
ncremen
sys
em
IS-A, IS-B IS-C
Millimeter machine 1 mm/min 8 – 15000 0 – 12000
Inch machine 0.1 inch/min 8 – 6000 0 – 4800
Set a maximum feedrate for the arc radius set in parameter No. 1731.
1731 Arc radius value corresponding to a maximum feedrate
[Data type] Two–word
Unit IS–A IS–B IS–C Unit
Linear axis
(millimeter machine)
0.01 0.001 0.0001 mm
Linear axis
(inch machine)
0.001 0.0001 0.00001 inch
[Valid data range] 1000 to 99999999
Set the arc radius corresponding to the maximum feedrate set in parameter
No. 1730.
1732 Minimum value (RV min) for arc radius–based feedrate clamp
[Data type] Word
Valid data range
y
IS-A, IS-B IS-C
Millimeter machine 1 mm/min 0 – 15000 0 – 12000
Inch machine 0.1 inch/min 0 – 6000 0 – 4800
The arc radius–based feedrate clamping function reduces the maximum
feedrate as the arc radius decreases. When the specified maximum
feedrate is not greater than RV min (minimum value for arc radius–based
feedrate clamping), RV min is used as the maximum feedrate.
Series 0i–C
OPERATOR’S MANUAL
(M series) (B–64124EN)
II.19.1 Feedrate clamp by circle radius
Series 0i Mate–C
OPERATOR’S MANUAL
(M series) (B–64144EN)
II.19.1 Feedrate clamp by circle radius
Parameter
[Unit of data]
[Valid data range]
[Unit of data]
[Unit of data]
[Valid data range]
Reference item