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Improvement for Rotary Axis Control Additional Manual Page 1

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FANUC Series16i /18i /21i-MA
Improvement for Rotary Axis Control
A-77975
1999.10.16
2000.1.17 (2) is added.02
Index
1. Outline 2
2. Specification 2
2.1 Cutting feed speed 3
2.2 For 0mm in virtual radius 3
3. Parameter 6
4. Note 7
FANUC Series 16i /18i /21i –MA
Specification
Improvement for Rotary Axis Control
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Contents Summary of Improvement for Rotary Axis Control Additional Manual

  • Page 1FANUC Series 16i /18i /21i –MA Specification Improvement for Rotary Axis Control Index 1. Outline 2 2. Specification 2 2.1 Cutting feed speed 3 2.2 For 0mm in virtual radius 3 3. Parameter 6 4. Note 7 Title FANUC Series16i /18i /21i-MA Improvement for Rotary Axis Control Draw No. A-77975 02 2000.1.1
  • Page 21. Outline The rotation speed of the rotation axis is assumed to be a movement speed on a virtual radius. 2. Specification In linear interpolation with a linear axis and the rotary axis, the movement angle 1 degree of the rotary axis is interpolated as moved distance 1 mm (1inch at inch input) (Refe
  • Page 32.1 Cutting feed speed In this function, the speed of the axis becomes L / L ′ times for the feedrate displayed on the CNC screen from the difference of the method of obtaining moved distance. Especially, the movement of the axis quickens when a small value is set to a virtual radius. Therefore, ple
  • Page 4< Example 1 > When instructing as follows on IS-B unit, G91 G01 C10. F10. ; (1) The calculation is as follows, when 10000(10mm) is set in a virtual radius (parameter No.1465).  π × 10 ( mm ) × 10 (deg)  2  π × l C × ∆B  2 L′ =   =   = 1.7453292 ⋅ ⋅ ⋅( mm )  180   180  10 (deg) FC = 10
  • Page 5Rotation speed when 10mm setting. (1) Instruction speed. F=10mm/min Rotation speed when 36mm setting. (2) 10mm 36mm Figure 1 < Example 2 > On the machine which the direction of the tool changes by the rotation axis like figure, the movement speed of a standard point can be assumed to be instruction
  • Page 63. Parameter 1408 RFDx [ Data type ] Bit axis RFDx In a linear interpolation, the rotation speed of the rotary axis is assumed to be a movement speed in a virtual radius. 0 : Disable 1 : Enable 1465 Virtual radius of sending speed control of rotary axis [ Data type ] 2 - word axis [ Unit of data ] I
  • Page 74. Note (1) When parameter ROTx (No.1006#0) and RFDx (No.1408#0) are 1, this function becomes effective. (2) Parameter RFDx (No.1408#0) and a virtual radius parameter (No.1465) can be rewrote by G10. (3) The rotary axis moves at the maximum cutting feedrate when only rotary axis is commanded in case