Detailed description
2.5 Optimization of the control
Basic logic functions: Velocities, Setpoint/Actual Value Systems, Closed-Loop Control (G2)
70
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
MD32950
The function is activated via the following machine data setting:
MD32950 $MA_POSCTRL_DAMPING = 1.
It is possible to enter both positive and negative values,
which will then serve to scale the injection of the positional deviation.
Standard setting:
MD32950 $MA_POSCTRL_DAMPING = 0.
In this case, the injection of positional deviation is inactive.
Note
The weighting of machine data:
MD32950 $MA_POSCTRL_DAMPING
can be set on the basis of step responses, for example.
If the control approaches the stability limit (vibration inclination increases), then the
parameter is too large.
Supplementary condition
1.
The functional expansion is available for all control variants,
which use SIMODRIVE 611 digital drives.
2.
The function can only be used on axes with two encoders:
MD30200 $MA_NUM_ENCS = 2
One of the encoders must be parameterized as an indirect measuring system and the
other as a direct measuring system.
If these conditions are not met, reset alarm 26016 will acknowledge the function when an
attempt is made to activate machine data:
MD32950 $MA_POSCTRL_DAMPING.
The function remains deactivated internally when this alarm is active.
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 ...