Detailed description
2.1 Path feedrate F
Basic logic functions: Feeds (V1)
14
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Based on the programmed cutting rate S
Speed
, either (S
G96
) or (S
G961
) and the partoriented
actual value of the transverse axis (radius r), the control system uses the following formula to
determine the spindle speed:
6
6SHHG
Q
U
π = Circle constant
Diameter programming and reference axis for several transverse axes in one channel:
One or more transverse axes are permitted and can be activated simultaneously or
separately:
•
Programming and displaying in the HMI operator interface in the diameter
•
Assignment of the specified reference axis with
SCC[AX]
for a constant cutting rate
G96
,
G961, G962
References:
/FB1/ Function Manual Basic Functions; Transverse Axes (P1)
Example
Example
S
G96
= 230 m/min
•
where r = 0.2 m ! n = 183.12 rpm
•
where r = 0.1 m ! n = 366.24 rpm
⇒ The smaller the workpiece diameter, the higher the speed.
For
G96, G961
or
G962
a geometry axis must be defined as the transverse axis.
The transverse axis, whose position affects the speed of the mater spindle, is defined using
channel-specific machine data:
MD20100 $MC_DIAMETER_AX_DEF (geometry axis with transverse axis function
)
The function
G96, G961
or
G962
requires that the machine zero and the workpiece zero of
the transverse axis are in the turning center of the spindle.
Summary of Contents for SINUMERIK 840D sl
Page 282: ...Index Basic logic functions Acceleration B2 64 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 388: ...Basic logic functions Travel to fixed stop F1 Function Manual 11 2006 6FC5397 0BP10 2BA0 52 ...
Page 962: ...Index Basic logic functions Emergency Stop N2 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1704: ...Constraints Basic logic functions Spindles S1 94 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1716: ...Index Basic logic functions Spindles S1 106 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1996: ...Index Basic logic functions Tool Offset W1 208 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2150: ...Table of contents Basic logic functions Appendix 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2184: ...Glossary Basic logic functions Appendix 38 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...