Festo CMMT-ST-SW, Original Instructions Manual

Page: 397 / 616

TRG
1
0
2 x 1 x
v * T
t2
v * T
t1
–Mod
+Mod
–Dir
Fig. 95 Timing diagram: negative direction
c) Negative/positive direction
TRG
1
0
2 x 1 x
v * T
t1
v * T
t2
–Mod
+Mod
v * T
t1
v * T
t2
+/–Dir
Fig. 96 Timing diagram: negative/positive direction
Signal curve depending on switching function, delay compensation and hysteresis in automatic
mode (6) with the switching characteristic time-controlled On (2), example - positive direction
After the switching point is reached, the trigger output for the duration of the parameterised switch-on
time is activated.
TRG
1
0
x1
t1
v * T
t1
–Mod +Mod
+Dir
Fig. 97 Timing diagram: mode 4 (switch-on time) - example: positive direction
If the status of the trigger output is “high” when the next “switch-on point” is reached, the new
switching point is ignored. The new switching points are accepted only if no switching point is active.
The switching duration is not extended.
Name Description ID Px.
TRG Trigger output
–
Tt1 Inactive time compensation of first switching point 112704
Tt2 Inactive time compensation of second switching point 112705
Technology functions
397 Festo — CMMT-ST-SW — 2019-02