IC 40 · Edition 07.18
36
analogue
t [s]
high
low
closed
DI 1
DI 2
t [s]
t
1
t
2
t
3
t
4
{
Function
3 .6 .4 2-point operation with switchover of the running
times
Operating mode 24
Digital input DI 1 functions as a pulse input. The actua-
tor operates in analogue/low (analogue/closed) inter-
mittent mode via DI 1.
In idle state (DI 1 with no signal), the actuator is in “low”
position (“low” position may also be 0° = “closed” posi-
tion).
The adjustment angle for the “open” position, which can
be varied via the analogue signal, is set in BCSoft.
Example: 4 mA for 60% opening and 20 mA for 100%
opening.
Depending on the adjustment angle for the “open” po-
sition, the heat output can be reduced and a uniform
temperature distribution in the furnace or kiln can be
achieved nevertheless owing to intermittent operation
of the burner.
DI 1
Position
Off
low/closed
On
analogue
Operating mode 24
▼