Condenser fan:
Proportional range P-controller
For setting of proportional range required if [
=4]
in which the fan is to be controlled.
Condenser fan: Minimum speed
Here, you can set the lowest voltage value at which
a connected fan will still be running.
Condenser fan: Start-up time
Here, you can define the time for which a fan is
switched on from standstill at max. voltage to
enable stable operation.
Password for parameter level
With this parameter, you can set the password for
parameter level
.
Temperature
sensors
Mains frequency
In this parameter, you must define the mains
frequency.
,
,
,
Act. value sensor F1 .. F4
The temperature value shown here is used for
control. It is calculated as follows:
Actual control value =
( actual measured value * weighting factor )
+ actual value correction
Actual value correction and weighting factor must
be defined in the following parameters. This
corrects actual value deviations in special
applications (refrigerated shelves or similar) due to
unfavourable sensor location.
Weighted mean value sensors F1 and F2
This theoretical mean value from sensors F1 and
F2 may be useful for the control circuit or display. It
is calculated as follows:
= (
x
+ (100 -
) x
) / 100
,
,
,
Calibration of sensor
F1…F4 actual value correction
With this parameter it is possible to correct actual
value deviations caused by sensor tolerances, very
long sensor cables or structural protections (e.g.
ex-barriers), for example. The value defined here is
added to the measured value.
,
,
,
Weighting factor F1…F4
With this parameter, it is possible to correct actual
value deviations due to unfavourable sensor
location. The value measured by the controller is
multiplied by the value set here.
,
,
,
Sensor selection F1…F4
With this parameter, you can define the sensor
type. Depending on the hardware, not all sensor
types may be supported. For the NTC sensor, a
parallel resistor will have to be connected.
,
,
,
Software filter F1…F4
In this parameter, you can define how many
measured values are to be used for calculating a
mean value. A mean value is calculated from the
last measured values, with the oldest measured
value being deleted (so called "Moving Average
Filter").
,
,
,
F1…F4: Display at 0 / 4mA
If, when choosing the sensor,
/
/
/
= 7 or 8 is selected (0…20mA or 4..20mA
linear sensor), you can define via this parameter
which value is to be displayed in the case of a
current of 0 or 4mA. The value to be displayed for
20mA can be defined in the next parameter. The
actual measured value is calculated as linear
interpolation between these two values.
,
,
,
F1…F4: Display at 20mA
If, when choosing the sensor,
/
/
/
= 7 or 8 is selected (0…20mA or 4..20mA
linear sensor), you can define via this parameter
which value is to be displayed in the case of a
current of 20mA. The display value for 0 / 4mA is
defined in the previous parameter. The actual
measured value is calculated as linear interpolation
between these two values.
Weighting of sensor F1 for display
(weighted mean value of sensor F1 and F2)
This theoretical mean value from sensors F1 and
F2 may be useful for the control circuit or display. It
is calculated as follows:
= (
x
+ (100 -
) x
) / 100
Password for parameter level
This parameter sets the password for level
.
