IC 40 · Edition 07.18
33
t [s]
high
low
closed
DI 1
DI 2
t [s]
analogue
t
1
t
2
{
Function
3 .6 .2 2-point operation with switchover of the
adjustment angle for the “open” position
Operating mode 22
In idle state (DI 1 and DI 2 with no signal), the actuator
is in “low” position independently of the analogue signal
(“low” position may also be 0° = “closed” position).
Signal at DI 1, DI 2 with no signal:
The actuator operates in high/low (high/closed) inter-
mittent mode via digital input DI 1.
Digital input DI 1 functions as a pulse input.
Signal at DI 2:
Intermittent mode can switch in ongoing operation
between high/low (high/closed) and analogue/low
(analogue/closed). The adjustment angle for the “open”
position is then approached with signal at DI 1 and
switched over via DI 2. The actuator now operates in
analogue/low (analogue/closed) intermittent mode via
digital input DI 1.
The adjustment angle for the “open” position, which can
be varied via the analogue signal (position setpoint), is
set in BCSoft.
Example: 4 mA for 60% opening and 20 mA for 100%
opening.
Operating mode 22
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