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FS16i/18i Additional Manual Page 14

Additional Manual
A-78714EN
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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
14/14
Sheet
T.Mochida E.Genma
Notes
- 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, STG(No.8404#0)=1, HG0(No.8404#1)=1))
- AI-HPCC
- AI-NANO-HPCC
- 5-axis machining function.
Therefore, when you use a FAD function in a normal mode, please set the time
constant which includes the time constant of FAD to each parameter for the cutting
feed (parameter No.1768 or No.1769) and rapid traverse (parameter No.1773 and
No.1774(T2)), because the time of the acceleration/deceleration is less than that in a
normal mode.
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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