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IC 40 function > Standard operating modes 1 – 12
4.5.3 2-step operation with one or two digital inputs
Operating mode 3
In idle state (DI 1 and DI 2 with no signal), the actuator is in
“low”
position (“low” position may also be 0° = “closed” position).
Control via two digital inputs
If digital input DI 2 is activated, the actuator moves from
“low”
position to “middle” position in running time t1.
If, in addition, digital input DI 1 is activated, the actuator
approaches “high” position in running time t2.
When the signal DI 1 drops, the actuator moves back to
“middle”
position in running time t3 and closes the control element
to the “low” position in running time t4 if the signal is also
disconnected from DI 2.
The actuator operates in high/middle/low
(high/middle/closed) intermittent mode.
In this operating mode, digital input DI 1 has priority and its
signal always leads to opening of the actuator to the “high”
position.
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