Technical data

Technology objects
CPU 317T: Technology Functions
A5E00251798-03
3-41
3.6.5 Hysteresis
Mechanical backlash may cause fluctuation of the actual position value, and thus
unwanted transitions of the cam switching state. These unwanted switching states
can be prevented by setting a hysteresis.
Conditions for the hysteresis
• The hysteresis is not enabled until the direction has been reversed.
• The direction of movement is not redefined within the hysteresis.
• Within the hysteresis, the switching status of position-based cams is not
changed.
• If modified cam switching conditions are detected after the cam has moved out
of the hysteresis window, this current switching status is set.
The height of the green hatched area corresponds with the hysteresis.