Danfoss AK-CC 460 User Manual page 17

User Guide | Controller for SemiPlugin appliance, AK-CC 460
Rail heat control
The rail heat can be controlled in several ways:
0: The function is not used
1: Pulse control is used with a timer function following the day/night operation (o41 and
o42)
2: Pulse control is used with a dew point function. This function requires that a signal is
received about the dew point value. The value is measured by a system manager and sent
to the controller via the data communication.
Dew point value where the rail heat is minimum
This function is discussed earlier in the manual.
Dew point value where the rail heat is maximum
This function is discussed earlier in the manual.
Lowest permitted rail heat effect
Here the % part of the effect to be achieved when the dew point value is minimum.
Start of refrigeration when door is open
If the door has been left open, refrigeration must be started after a set time. That time can
be set here. (DI config = 2)
Alternative display
A reading can be displayed on the controller or on the display by pressing the lower
button. This reading is set from the factory so that the defrosting stop temperature is
displayed.
A different setting will give the following reading:
1: (Defrost stop temperature = factory setting)
2: S6 temperature
Display of temperature during normal operation
1: Air temperature. Weighted S3 + S4
2: Product temperature S6
Light and night blind definition
0: Light is switched off and night blind is open when the main switch is off
1: Light and night blind is independent of main switch.
Configuration of the alarm relay
The alarm relay will be activated upon an alarm signal from the following groups:
1 - High temperature alarms
2 - Low temperature alarms
4 - Sensor error
8 - Digital input is activated for alarm
16 - Defrost alarms
32 - Miscellaneous
The groups that are to activate the alarm relay must be set by using a numerical value
which is the sum of the groups that must be activated.
(E.g. a value of 5 will activate all high temperature alarms and all sensor errors. 0 will cancel
the relay function)
Fan pause while the night blinds are rolling down.
Here it is possible to set a pause time for the fans so that the night blinds can roll down
into the correct position unobstructed.
Service
Temperature measured with S5 sensor
Status on DI1 input. on/1=closed
Read the duration of the ongoing defrost or the duration of the last completed defrost.
Temperature measured with S3 sensor
Status at the day-/night operation (night operation: on/off )
Temperature measured with S4 sensor
Thermostat temperature
Read the ongoing cutin time for the thermostat or the duration of the last completed
cutin
Read the temperature at the S6 sensor
Status on DI2 input. on/1=closed
Readout of the actual compressor capacity in %
Air temperature. Weighted S3 +S4
Measured temperature for alarm thermostat
© Danfoss | DCS (vt) | 2019.12
o85 Railh. mode
o86 DewP Min lim
o87 DewP Max lim
o88 Rail Min ON%
o89 DoorInjStart
o92 Displ menu 2
o97 Disp. Ctrl.
o98 Light MS = Off
P41 Al.Rel. Conf.
P65 BlindFanStop
Service
u09 S5 temp.
u10 DI1 status
u11 Defrost time
u12 S3 air temp
u13 Night Cond.
u16 S4 air temp
u17 Ther. air
u18 Ther runtime
u36 S6 temp
u37 DI2 status
u52 CompCap %
u56 Display air
u57 Alarm air
BC230086440483en-000201 | 17