● Maximum responsiveness:
The speed and position controller gain (servo gain factor) is tuned with maximum values
and minimum ruggedness.
Application: High-speed machining
with maximum suppression of all disturbing forces such
as friction, teeth of the drive belt, strong cutting forces, when machining titanium, for
example. Recommended for high-speed machining with linear motors.
Requirement: The machine must have a rigid design; the dynamic masses do not change
significantly.
● Moderate responsiveness (= default):
This controller dynamic response is sufficient for the majority of machines and applications.
The setting is more rugged than "Maximum responsiveness".
Application: The inertia or the load mass of the axes does not change much and therefore
this setting is suitable for numerous applications.
● Conservative/robust responsiveness:
Only weak control gains are selected in order to ensure as high a level of ruggedness as
possible.
The speed controller is tuned so that it achieves maximum damping to prevent oscillations
and to achieve good position controller gain.
Application: Recommended for machines on which the mechanical axis system or the load
mass can change significantly. Also suitable for axes that react with oscillations, e.g. main
spindles on turning machines or large axes with high load mass.
Recommended for applications with low requirements on the machining time.
Tuning
6.2 Automatic servo optimization
CNC commissioning
Commissioning Manual, 10/2015, 6FC5397-3DP40-5BA3 175
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