Operating Modes; Standard And Analogue Operating Modes; Closed, Low-Fire Rate, Intermediate And Open; Position - Honeywell KromSchroder IC 40 Technical Information

Function

3 .1 Operating modes

The operating mode is responsible for the setting prop-
erties of the IC 40.
The running times and dwell positions of the actuator
are stored in the various operating modes but can be
reprogrammed at any time using BCSoft (if mounted on
butterfly valve BV..).
The actuator operates in continuous and intermittent
mode with various adjustment angles for the "open"
position. The adjustment angles for the "open" position
indicate the approached position of the actuator in the
case of intermittent operation. They can be changed in
BCSoft.
The corresponding operating modes are displayed in
BCSoft as flowcharts by way of example to visualize the
opening/closing behaviour of the actuator.

3 .2 Standard and analogue operating modes

In the standard operating modes, two digital inputs
(DI 1 and DI 2) of the actuator are pre-assigned at the
works as universal inputs. If a voltage of 24 V DC or
100 – 230 V AC is applied to the input, this is recog-
nized as "On" signal (positive logic). It is not necessary
to set or readjust the voltage magnitude or voltage type.
In the analogue operating modes, an additional input
(IN) is assigned for the actuator. If an actuator IC 40..A
with 4 – 20 mA analogue input is connected (option),
further operating modes are available in addition to the
IC 40 · Edition 07.18
standard operating modes. The actuator can approach
corresponding intermediate positions via a current sig-
nal to the additional input, see page 49 (Priority and
running time in operating modes 1 – 10).

3 .3 Closed, low-fire rate, intermediate and open

position

Depending on the set operating mode, there are 4 posi-
tions which the actuator can approach:
Closed = 0° = 0%,
Low = low-fire rate position,
Middle = intermediate position,
High = open position.
The positions not used by the operating mode are
barred.
The "closed position" is always the calibrated zero posi-
tion of the device and cannot be readjusted. The other
positions can be defined on site.
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