Drive functions
5.5 Control voltage output
Hydraulic Drive
172 System Manual, 04/2015, 6SL3097-4BA00-0BP1
Control voltage output
5.5.1
Characteristic correction
Plane adaptation
Various non-linear effects of the valve or drive can be compensated using characteristics.
The characteristics are cascaded so that they can be set separately.
In order to compensate the direction-dependent controlled system gain for differential
cylinders, a characteristic with a gradient that can be changed depending on the direction
has been implemented. The following figure shows a sample characteristic and illustrates
how the associated machine data works. In practice, only one of the two gradients is
weighted with a factor not equal to 100 %. Normally, it is the gradient that causes the
cylinder piston to travel out that is weighted with a factor of less than 100 %.
Figure 5-15 Example of piston plane adaptation characteristic
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