Use Case Of The Math Function: Off-Delay Timer - Burkert 8619 Operating Instructions Manual

Type 8619
Parameters menu
2. Do the settings for function F2:
- TYPE: Choose MATH
- EQUATION: Enter A(B>"value of the delay in seconds"); the value of the time delay must have a
maximum resolution of 0.1 s.
- UNIT
UNIT GROUP: Choose ON/OFF
- PROCESS A
PV A: Choose the same event as the one set in PV A of F1:MATH
- PROCESS B
PV B: Choose M0:MAIN and F1:MATH
- STATE: Make sure the state is set to ON.
- Press SAVE.
3. Do the settings for the digital output (DOx) (also refer to section 9.26.1):
- MODE: Choose ON/OFF.
- PV: Choose M0:MAIN and F2:MATH
- Press SAVE.
9.15.5

Use case of the MATH function: OFF-delay timer

The result of F2:MATH sets the digital output DOx to OFF after a predefined time delay. Refer to Fig. 61.
PV A of F1:MATH
PV A of F2:MATH
F1:MATH
F2:MATH / DOx
Fig. 61: Timing diagrams for an OFF-delay timer
Time delay
t
Time delay value
t
t
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