ADD FURNACE CO.,LTD.
44 ซอยบรมราชชนนี
โทร: 02-888-3472 โทร: ออกแบบ:08-08-170-170 แฟกซ์: 02-888-3258
https://www.add-furnace.com E-mail: sales@add-furnace.com
IC 40 function > Analogue operating modes 21 – 27
4.6.5 2-point operation with characteristic curve
switchover I
Operating mode 25In idle state (DI 1 and DI 2 with no
signal), the actuator is in “low” position (“low” position
may also be 0° = “closed” position).
DI 1 functions as a pulse input. The analogue
characteristic curve (analogue chart 1/analogue chart
2) is switched over via DI 2 and the adjustment angle for
the “open” position is pre-set by this. This angle is
approached with signal at DI 1.
DI 2 with no signal:
The actuator operates in analogue chart 1/low
(analogue chart 1/closed) intermittent mode via digital
input DI 1.
Signal at DI 2:
The actuator operates in analogue chart 2/low
(analogue chart 2/closed) intermittent mode via digital
input DI 1.
This function allows the actuator to switch over its
intermittent mode in ongoing operation. The adjustment
angle for the “open” position is pre-set via two
characteristic curves (charts), each with 5 interpolation
points, see page 57 (Inputs). This allows the same current
signal to be used for running through two different
capacity ranges, for example for lambda adjustment or
for hot-air compensation.
The adjustment angles for the “open” position of the
characteristic curves chart 1 and chart 2 can be set
mutually independently. The adjustment angle for the
“open” position of chart 2 may thus also be higher than
that of chart 1.