Detailed description
2.3 Feedrate control
Basic logic functions: Feeds (V1)
34
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Axis/spindle disable" DB31, ... DBX1.3
Activating "Axis/spindle disable" (DB 31, ...DBX1.3) disables the axial PLC interlocks "No
controller enable" and "Feed stop".
The axial and channelspecific override, however, is active.
"Spindle stop" DB31, ... DBX4.3
IS "Spindle stop" (DB31, ... DBX4.3) is used to stop the relevant spindle.
Activation of the "Spindle stop" function
If
G33
,
G34
,
G35
active:
Effective
(may cause contour deviations depending on
dynamic characteristics)
If
G63
active:
Effective
If
G331
,
G332
active:
Not effective
2.3.3
Feedrate override on machine control panel
General
The operator can use the feedrate override switch to increase or decrease the path feedrate
relative to the programmed percentage with immediate effect. The feedrates are multiplied
by the override values.
An override between 0 and 200% can be programmed for the path feedrate.
The rapid traverse override switch is used to reduce the traversing velocity when testing a
part program.
An override between 0 and 100% can be programmed for the rapid traverse.
The feedrate can be changed axisspecifically for positioning axes. The override can be
between 0 and 200%.
The spindle override can be used to modify the spindle speed and the cutting rate (with
G96
,
G961
). The override can be between 0 and 200%.
The override is not permitted to exceed the machinespecific acceleration and speed limits or
generate a contour error.
The feedrate override can be changed separately for path and positioning axes.
The overrides act on the programmed values or on the limits (e.g.,
G26
,
LIMS
for spindle
speed).
A sequence of
G63
blocks is traversed without taking into account the feedrate override. A
sequence of
G63
blocks consists of directly consecutive blocks with G code
G63
. It starts
with the first
G63
block and finishes with the first path motion block, which is not a
G63
block.
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 ...