KJM MANDÍK
–
Detailed operating instructions
M&C KJMPNO 07/2022
MANDÍK, a.s.,
73
potential fault is indicated by a bell on the LCD display or a flashing or lit alarm LED
and a message in the alarm list.
Air quality sensor
– in the
AssignmentInputs/Outputs
AirQuality
menu, there for the
selected air quality sensor, one of the inputs marked according to the syntax described in the
previous chapter “Inputs and Outputs” is selected (e.g. for the first sensor connected to the 5
universal input of the controller set
Sensor
= X5
). Another option is to set constant air quality
by setting the input to
Set
.
The required value for the required air quality is then set below
the
Correction
sign.
An example of setting the air quality to a fixed value of 1,000 ppm is done
in two steps:
1.
Sensor
= Set.
2.
Correction
= 1,000 ppm.
Other parameters that can be set for any air quality sensor:
Correction
(10s, 0ppm)
– consists of two parameters. The first one is used to smooth
the jammed signal from the sensor by specifying filtering in seconds. The other one
can be used by the user to change the value given by the sensor and make an
adjustment of the air quality deviation according to local conditions.
Value
(ppm)
– indicates the current air quality from the connected sensor. If the air
quality value is less than 0 ppm, then the supply cable has probably shorted. If the air
quality is greater than 2,000 ppm, then the supply cable has probably been cut. A
potential fault is indicated by a bell on the LCD display or a flashing or lit alarm LED
and a message in the alarm list.
Assignment of digital inputs
13.2
Digital inputs are used to signal running, fault, icing or other component conditions. Assign
a digital input to the selected component by selecting one of the digital inputs marked according
to the syntax described in the “Inputs and Outputs” chapter (e.g. for a supply fan status contact
connected to 1 digital input of the controller, set
SupplyState
= D1
). Another option is to assign a
constant value (
Off
/
On
)
via the option
Set.
The required value at the input for the required
function is then set using the
Polarity
(
Normal
/Invert)
item.
Polarity
=Invert
inverts the signal
coming from the selected input. An example of setting the supply fan state to the fixed value of
On
is done in two steps:
