Festo CMMT-ST-SW, Оригинальное руководство пользователя

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Name Description ID Px.
Switching time (manual) 112707 t1, t2
Switching time (automatic) 112712
TRG Trigger output of device (TRG...)
–
Tab. 390 Legend for the block diagram of the cam controller
Timing
Hysteresis
The hysteresis suppresses undesired switching procedures around the switching point during fluctu-
ations. The hysteresis refers to the switching point, including the offset due to the delay compensa-
tion.
An example is shown in the diagram below: All additional timing diagrams do not depict the hyster-
esis.
TRG
1
0
2 x 1 x
v * T
t1
v * T
t2
–Mod
+Mod
Hy Hy
+Dir
Fig. 93 Timing diagram: hysteresis (example: positive direction)
Signal curve depending on the switching function, delay compensation and hysteresis in "Automat-
ic" mode (6) – examples
a) Positive direction
TRG
1
0
2 x 1 x
v * T
t1
v * T
t2
–Mod
+Mod
+Dir
Fig. 94 Timing diagram: positive direction
b) Negative direction
Technology functions
396 Festo — CMMT-ST-SW — 2019-02