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PAGEEDT.
DATE
DESIGN
DESCRIPTION
TITLE
No.
FANUC Series 16i/18i/21i/20i/160i/180i/210i-MODEL A
CONNECTION MANUAL (FUNCTION)
Concerning the addition of Look-Ahead Bell-Shaped
Acceleration/Deceleration Before Interpolation Time
Constant Change Function
B-63003EN-1
02-08 01 01.08.29 Newl
Re
istered
(3)Using the speed specified with the F command issued at the start of cutting as
the reference speed
The speed specified with the F command issued when a
cutting block group (such as G01 and G02) starts is assumed
the acceleration/deceleration reference speed,
This method is used if the G05.1Q1 block or G05 P10000 block
does not have an F command and the parameter of the
acceleration/deceleration reference speed is set to 0.
(G00)
G01 X--- Y--- Z--- F*** ;
X--- Y--- Z---
X--- Y--- Z---
X--- Y--- Z---
G00 ;
Even if an F command is issued before a cutting block group
and the F command is effective to the cutting block group
modally, the speed specified with the modal F effective at the
start of cutting will be assumed the acceleration/deceleration
reference speed.
・
・・
・Acceleration/deceleration parameter calculation method
Optimum bell-shaped acceleration/deceleration before
interpolation, as mentioned here, refers to bell-shaped
acceleration/deceleration before interpolation in which linear
acceleration/deceleration not reaching the specified
acceleration/deceleration does not occur if T2 > T1.
Calculation is performed as described below.
(1) If the bell-shaped acceleration/deceleration before
interpolation time constant T2' is calculated under the
condition that the bell-shaped acceleration/deceleration
before interpolation must not have a linear portion,
A
F2T
2T
∗
=
′
T2: Acceleration change time specified for bell-shaped
acceleration/deceleration before interpolation
F : Acceleration/deceleration reference speed
A : Acceleration for the acceleration/deceleration before
interpolation
Cutting block group