IC 40 · Edition 07.18
17
t [s]
high
low
closed
DI 1
DI 2
t [s]
middle
t
1
t
4
t
3
t
2
t
1
t
2
Function
3 .5 .3 2-stage operation with one or two digital inputs
Operating mode 3
In idle state (DI 1 and DI 2 with no signal), the actua-
tor 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 within running
time t
1
.
If, in addition, digital input DI 1 is activated, the actuator
approaches “high” position within running time t
2
.
When the signal at DI 1 drops, the actuator moves back
to “middle” position within running time t
3
and closes
the control element to “low” position within running
time t
4
if the signal is also disconnected from DI 2.
The actuator operates in high/middle/low (high/mid-
dle/closed) intermittent mode.
DI 1
DI 2
Position
Off
Off
low/closed
On
Off
high (DI 1 has priority)
Off
On
middle
On
On
high
In this operating mode, digital input DI 1 has priority
and its signal always leads to opening of the actuator to
“high” position.
Operating mode 3
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