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FS16i/18i Additional Manual Page 10

Additional Manual
A-78714EN
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Apprv.
Desig.
Sheet
Title
Draw
No.
Date
Design
Descri
p
tion
Date
FS16i/18i –MA/MB/TA/TB, 18i–MB5, 21i–MB/TB
Time constant for acceleration/deceleration during
High-speed and High-precision function modes
Specifications
June.7.2004
10/14
Sheet
T.Mochida E.Genma
(2) In case of HPCC with parameter SBL (No.1603#3)=0.
(When the time required to reach the acceleration set with parameters No.8400
and No.8401 is set during look-ahead bell-shaped acceleration/deceleration
before interpolation: (Time t2 in the figure below))
Valid data range = 0
~ 99999999
Speed
Time
Ｖ
t
2
t
1
t
2
T
t
1
: Time constant when thinking with linear acc./
deceleration (Parameter No.8401).
t
2
: Time of part of rounding corner (Parameter
No.8416).
V: Speed to set acceleration time t1 (Parameter
No.8400).
Usually, set the maximum cutting speed.
Total time = T
Time of linear part = T-(2× t
2
)
Time of each curve part = t
2
When the speed of the target is different, total time
changes, too. (Acceleration constant method)
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Contents Summary of FS16i/18i Additional Manual

  • Page 1FANUC Series 16i/18i –MA/MB/TA/TB FANUC Series 18i–MB5 FANUC Series 21i–MB/TB Time constant for acceleration/deceleration during High-speed and High-precision function modes Specifications - Contents - OVERVIEW .........................................................................................
  • Page 2Overview Time constant for acceleration/deceleration during the High-speed and High-precision function modes is explained. Note that about AI contour control (AICC) it is explained in case servo FAD function is not used (Parameter MI1, MI0 (No.7050#6, #5) = 0, 1), and about High precision contour co
  • Page 3The 5-axis machining function modes are as follows. (a) Tool center point control for 5-axis machining (b) Tool radius compensation for 5-axis machining (c) Tool center point control (d) Tool length compensation along tool direction (e) 3 dimensional cutter compensation (f) 3 dimensional circular in
  • Page 4Parameter - Acceleration/Deceleration after interpolation for cutting feed during High-speed and High- precision function modes 1768 Time constant used for linear acceleration/deceleration or bell–shaped acceleration/deceleration after interpolation for cutting feed during High-speed and High-precis
  • Page 51769 Time constant used for linear acceleration/deceleration or bell–shaped acceleration/deceleration after interpolation for cutting feed for each axis during High-speed and High-precision function modes [Data type] Word axis [Unit of data] msec [Valid data range] Function Data range APC 0, 8 ~ 512
  • Page 6- Acceleration/Deceleration before interpolation for cutting feed during APC, AI-APC, AICC and AI-NANO-CC modes Parameter 1 for setting an acceleration for linear acceleration/deceleration before 1770 interpolation (maximum machining speed during linear acceleration/deceleration before interpolation
  • Page 7NOTE 1. When 0 is set in parameter No.1770 or parameter No.1771, linear acceleration/deceleration before interpolation is not performed. 2. In parameter No.1770 and parameter No.1771, set values that satisfy the following: Parameter No.1770 / Parameter No.1771 ≥ 5 3. When 0 is set in parameter No.17
  • Page 8- Acceleration/Deceleration before interpolation for cutting feed during HPCC, AI-HPCC, AI-NANO-HPCC and 5-axis machining function modes 8400 Parameter 1 for determining a linear acceleration/deceleration before interpolation [Data type] 2-word [Unit of data] [Valid data range] Valid data range Incr
  • Page 919510 Parameter 2 for determining a linear acceleration/deceleration before interpolation for each axis during AI-HPCC, AI-NANO-HPCC and 5 axis machining mode [Data type] Word axis [Unit of data] msec [Valid data range] 0 ~ 1000 Set the time to reach the feedrate set in parameter No.8400, for each a
  • Page 10(2) In case of HPCC with parameter SBL (No.1603#3)=0. (When the time required to reach the acceleration set with parameters No.8400 and No.8401 is set during look-ahead bell-shaped acceleration/deceleration before interpolation: (Time t2 in the figure below)) Valid data range = 0 ~ 99999999 Speed t1
  • Page 11- Acceleration/Deceleration for rapid traverse during High-speed and High-precision function modes 1620 Time constant used for linear acceleration/deceleration or bell–shaped acceleration/deceleration (T1) in rapid traverse for each axis 1773 Time constant used for linear acceleration/deceleration o
  • Page 12NOTE 1. Parameter No.1773 is not effective in the normal operation, APC and AI-APC. Parameter No.1620 is effective in these modes. 2. In the following case, Acc/Dec before interpolation is selected and positioning is performed with linear interpolation: AI-APC, AICC,AI-NANO-CC: AIR(No.7054#1)=0, or
  • Page 13Function Data range Parameter No.8480#4,#5,#6 #4=0 #4=1 #4=0 #4=1 #5=1 #5=0 #5=0 #5=1 #6=0 #6=0 #6=0 #6=1 HPCC 0 ~ 256 0 ~ 128 0 ~ 64 - AI-HPCC, Acc/Dec before interpolation : - - 0 ~ 256 0 ~ 128 AI-NANO-HPCC, FRP (No.19501#5) = 0 (*1) (*1) 5-axis machining Acc/Dec after interpolation : - - 0 ~ 200
  • Page 14Notes - Fine acceleration/deceleration (FAD) function The FAD function is invalid during the following mode. - AICC (In case parameter MI1,MI0 (No.7050#6,#5) are set to 0,1 ) - AI-NANO-CC - HPCC (in case Rapid traverse is executed with RISC board in the same way as normal (Parameter SG0(No.8403#7)=1