Siemens SINUMERIK 840D sl Function Manual page 359

However, if the servo gain factor (K
impermissible high loads on the machine will result.
The maximum permissible servo gain factor (K
● Design and dynamics of the drive
(rise time, acceleration and braking capacity)
● Machine quality
(elasticity, oscillation damping)
● Position control cycle or speed control cycle for active DSC
The servo gain factor (K
Dynamic response adaptation
Axes that interpolate with one another, but with different servo gain factors (K
the same following error using the dynamic adaptation function. This allows an optimum
contour accuracy to be achieved without loss of control quality by reducing the servo gain
factors (K
The function is activated via:
MD32900 $MA_DYN_MATCH_ENABLE = 1 (dynamic response adaptation)
The dynamic response adaptation is realized by entering a new equivalent time constant. It is
calculated from the difference in the equivalent time constant of the dynamically weakest axis
and the axis to be adapted:
MD32910 $MA_DYN_MATCH_TIME [n] = <difference in the equivalent time constant>
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
G2: Velocities, setpoint / actual value systems, closed-loop control
) is defined as:
V
) to the dynamically weakest axis.
V
) is too high, instability, overshoot and possibly
V
) depends on the following:
V
7.5 Closed-loop control
) can be set to
V
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