Danfoss AK-CC 450, User Manual

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User Guide
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Controller for appliance control, AK-CC 450
RS8EU702 | 19
© Danfoss | ADAP-KOOL® | 2015.10
Define rail heat during defrost:
0: Off
1: On
2: Pulsing
d27 Railh. at def.
Defrost stop temperature at application 9 and thermostat band 2 d28 DefStop Temp2
Max. defrost time at application 9 and thermostat band 2 d29 MaxDefTime2
If you wish to see the temperature at the defrost sensor, push the controller’s lowermost
button. (May be changed to another function in o92.)
Defrost temp.
If you wish to start an extra defrost, push the controller’s lowermost button for four sec-
onds.
You can stop an ongoing defrost in the same way
Def Start
Here you can start a manual defrost
Hold After Def
Shows ON when the controller is
operating with coordinated defrost.
Disable def.
Defrost in progress can be stopped
Defrost State
Status on defrost
1= pump down / defrost
Parameters for refrigeration function
Period time for the pulse width period (PWM)
Expert setting - The value should only be changed by specially trained staff.
n63 Pwm Period
Max. opening degree at PWM n64 Pwm Max. OD
Min. opening degree at PWM n65 Pwm Min. OD
Wind up factor at PWM
Expert setting - The value should only be changed by specially trained staff.
n66 PwmWindUpFac
Amplification factor at PWM
Expert setting - The value should only be changed by specially trained staff.
n67 Pwm Kp fact.
Integration time at PWM
Expert setting - The value should only be changed by specially trained staff.
n68 Pwm Tn sec
Fan Fan control
Fan stop temperature
The function stops the fans in an error situation, so that they will not provide power to the
appliance. If the defrost sensor registers a higher temperature than the one set here, the
fans will be stopped. There will be re-start at 2 K below the setting.
The function is not active during a defrost or start-up after a defrost.
With s50°C the function is interrupted.
F04 FanStopTemp.
Pulse operation of fan
0: No pulse operation
1: Pulse operation when the thermostat does not call for refrigeration
2: Pulse operation when the thermostat does not call for refrigeration, but only during
night operation
F05 FanPulseMode
Pulse operation period for fan
Here the overall pulse time is set. The sum of ON-to and OFF time.
F06 Fan cycle
ON time for fan
Here the % part of the period the fans are to be in operation is set.
F07 Fan ON %
The LED on the controller’s front will indicate whether a defrost is going on. Fan Relay
Here you can read the fan relay status,
or force-control the relay in “Manual
control” mode.
Internal defrosting schedule/clock function
(Not used if an external defrosting schedule is used via data communication.)
Up to six individual times can be set for the defrost start throughout the day.
Defrost start, hour setting t01-t06
Defrost start, minute setting (1 and 11 belong together, etc.)
When all t01 to t16 equal 0 the clock will not start defrosts.
t11-t16
Real-time clock::
Setting the clock is only necessary when there is no data communication.
In the event of a power failure of less than four hours, the clock function will be saved.
Clock: Hour setting
t07
Clock: Minute setting t08