Hysteresis For Intermediate Positions: Set - AUMA AC 01.2 Manual

Application functions
Information
8.1.3.

Hysteresis for intermediate positions: set

Example
48
Figure 33: Signal behaviour (A to D) of the intermediate positions
Special characteristics of B, C and D
Behaviour of B and C: The signal is directly activated when reaching the set pivot
point (P).
Behaviour D: The signal is activated shortly before reaching the set pivot point (P).
The switch-on point is determined by pulse duration (+/ range around the pivot
point). Pulse duration depends on parameter Outer dead band M0148 and amounts
to 1.0 % of the travel for default setting.
For behaviours B and C, the signal might be omitted if, e.g when using a positioner,
pivot point (P) is not fully reached due to the dead band. In this case, behaviour D
can be selected as the dead band is considered.
The hysteresis determines the tripping point of the signal.
Parameter Pivot point 6 M0253 is set to 50.0 % of the travel.
Parameter Hysteresis 6 M0282 is set to 1.0 %.
Figure 34: Signal behaviour B, C, D for hysteresis = 1 %
P1 Switching on point ( ● )
P2 Switch-off point (○)
pT Pulse duration = 2 times XT + hysteresis
Required user level: AUMA (6).
Customer settings M0041
Intermediate positions M0143
Hysteresis M0267
Actuator controls
AC 01.2/ACExC 01.2 Profinet