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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
Look-ahead Bell-Shaped Acceleration/Deceleration Before Interpolation
Time Constant Change Function (M Series)
General
In Look-ahead bell-shaped acceleration/deceleration before
interpolation, the speed during acceleration/deceleration is as
shown in the figure below.
T1: Time determined from the specified speed and the specified acceleration
Specified acceleration:
In case of AI contour control (AICC)
and AI nano contour control (AI nanoCC)
Parameter No.1770/Parameter No.1771
In case of AI High precision contour control (AI-HPCC)
and AI nano High precision contour control (AI-nanoHPCC)
Parameter No.8400/Parameter No.8401 (or No.19510)
T2: Acceleration change time
In case of AICC and AI nanoCC : Parameter No.1772
In case of AI-HPCC and AI-nanoHPCC : Parameter No.8416
Specified
speed
Speed
Non-linear
acceleration/deceleration
Non-linear
acceleration/deceleration
Linear
acceleration/deceleration
T1
T2 T2
Time
Fig. 1
The time T1, shown above, varies with the specified speed. If
the specified speed is low, the speed will be as shown below,
causing linear acceleration/deceleration not reaching the
specified acceleration.