Survey of functions
Function Para-
meter
Parameter by operation via data com-
munication
Normal display
Normally S
air
(017=Air) will be shown as running display value. If lower button is activated
S
aux
will be displayed for 5 sec, and then return to S
air
If (017=Au) Saux will be shown as running display value. If lower button is activated
Sair will be displayed for 5 sec, and then return to Saux
If ICM has been selected (n03=6)
If (017=Air) S
air
(017=Air) will be shown as running display value. If lower button is activated OD
(u24) will be displayed for 5 sec, and then return to S
air
.
If (017=Au) OD (u24) will be shown as running display value. If lower button is activated S
air
will
be displayed for 5 sec, and then return to OD (u24)
Air temp.
Reference
Setpoint
Regulation is performed based on the set value provided that there is no external contribution
(o10).
(Push both buttons simultaneously to set the setpoint).
- SP Temp.
Temperature unit
Here you select whether the controller is to indicate the temperature values in °C or in °F. If indi-
cation in °F is selected, other temperature settings will also change over to Fahrenheit, either as
absolute values or as delta values.
r05 Temp unit
°C=0,
°F=1
(In AKM only °C is displayed whatever the
setting)
External contribution to the setpoint
This setting determines how large a contribution (in °C/°F) is to be added to the set setpoint
when the input signal is max. (20 mA).
r06 Ext. Ref.o set (°C/°F)
Correction of signal from S
air
(Compensation possibility through long sensor cable).
r09 Adjust S
Air
(°C/°F)
Correction of signal from S
aux
(Compensation possibility through long sensor cable).
r10 Adjust S
Aux
(°C/°F)
Start/stop of refrigeration
With this setting refrigeration can be started and stopped. Start/stop of refrigeration can also be
accomplished with the external switch function. See also appendix 1.
r12 Main Switch
Alarm
The controller can give alarm in dierent situations. When there is an alarm all the light-emitting
diodes (LED) will ash on the controller front panel, and the alarm relay will cut in.
Alarm for upper deviation
The alarm for too high S
air
temperature is set here. The value is set in Kelvin. The alarm becomes
active when the S
air
temperature exceeds the actual reference plus A01. (The actual reference (SP
+ r06) can be seen in u02).
A01 Upper deviation
Alarm for lower deviation
The alarm for too low S
air
temperature is set here. The value is set in Kelvin. The alarm becomes
active when the S
air
temperature drops below the actual reference minus A02. If a low tempera-
ture alarm is detected (A2 alarm) the solenoid valve in the liquid line (Digital output on terminal
9 and 10) will be closed
A02 Lower deviation
Alarm delay
If one of the two limit values is exceeded, a timer function will commence. The alarm will not
become active until the set time delay has been passed. The time delay is set in minutes.
A03 Temp alarm delay
With data communication the importance
of the individual alarms can be dened.
Setting is carried out in the “Alarm destina-
tions” menu. See also page 10.
Control parameters
Actuator’s max. temperature
Set the temperature (°C) the actuator is to have at the limit of the regulating range. The setting
ensures that the actuator will not become superheated and work itself away from the regulating
range. Due to tolerances in the actuator the value must be set 10K higher than indicated in the
curves on page 11.
n01 Q-max. temp.
Actuator’s min. temperature
Set the temperature (°C) the actuator will have at the limit of the regulating range. The setting
ensures that the actuator will not become too cold and work itself away from the regulating
range. Due to tolerances in the actuator the value must be set 10K lower than indicated in the
curves on page 11.
n02 Q-min. temp.
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