IC 40 · Edition 07.18
40
analogue
chart 1
analogue
chart 2
t [s]
high
low
closed
DI 1
DI 2
t [s]
t
1
t
2
Function
3 .6 .6 2-point operation with characteristic curve
switchover II
Operating mode 26
In idle state (DI 1 with no signal), the actuator is in “low”
position (“low” position may also be 0° = “closed” posi-
tion).
Each circuit combination of DI 1 and DI 2 determines
precisely one actuator position:
DI 1
DI 2
Position
Off
Off
low/closed
On
Off
analogue chart 1
Off
On
high
On
On
analogue chart 2
A change in the circuit combination directly triggers ap-
proach to the new position.
“High” position may also be lower than the “analogue
chart” positions in this case. The opening speed is pre-
set via the running time t
1
for the entire “low” to “high”
setting travel. Accordingly, the closing speed is set with
t
2
for the entire “high” to “low” setting travel. The speeds
are independent of the digital inputs and the analogue
input in this case.
Two characteristic curves, each with 5 interpolation
points, are available, see page 48 (Inputs).
Operating mode 26
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