Functions
2.18 Kneeshaped acceleration characteristic curve
Basic logic functions: Acceleration (B2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
49
2.18.2.2
Commissioning
Function
The knee-shaped acceleration characteristic curve is activated for a specific machine axis
using the machine data:
MD35240 $MA_ACCEL_TYPE_DRIVE = TRUE
Single-axis interpolation
As soon as the knee-shaped acceleration characteristic curve is activated, in the case of
single-axis interpolations (positioning axis, reciprocating axis, manual travel, etc.), traversing
is performed exclusively in
DRIVEA
mode.
Switching of the acceleration profile via the part-program instructions:
•
Abrupt acceleration changes (
BRISKA
)
•
Acceleration with jerk limitation (
SOFTA
)
is not possible.
Path interpolation
If the knee-shaped acceleration characteristic curve is parameterized for a machine axis that
is of relevance for a programmed path, but the
DRIVE
part-program instruction has not
been activated, then a substitute characteristic curve with lower dynamic limit values is
generated for the path.
2.18.3
Programming
2.18.3.1
Channel-specific activation (DRIVE)
Syntax
DRIVE
Functionality
The knee-shaped characteristic curve is activated for path acceleration using the
DRIVE
part-program instruction.
G group: 21
Effective: Modal
Reset response
The channel-specific default setting is activated via a reset:
MD20150 $MC_GCODE_RESET_VALUES[20]
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 ...