User Guide
|
Controller for appliance control, AK-CC 450
© Danfoss | ADAP-KOOL® | 2015.10
22 | RS8EU702 |
Digital input signal - DI3 (high voltage input)
The controller has a digital input 3 which can be used for one of the following functions:
Off: The input is not used.
1) Status display of 230 V signal
2) Door function. When the input is open it signals that the door is open. The refrigera-
tion and the fans are stopped. When the time setting in “A04” is passed, an alarm will be
given. and refrigeration resumed (o89). The refrigeration will be resumed when time in
o89 has passed.
3) Door alarm. When the input is open it signals that the door is open. When the time set-
ting in “A04” is passed an alarm will be given.
4) Defrost. The function is started with a pulse signal.
5) Main switch. Regulation is carried out when the input is closed, and regulation is
stopped when the input is put in pos. OFF.
6) Night operation. When the input is closed there will be regulation for night operation.
7) Thermostat band changeover. Switch to thermostat 2 (r21) when the input is closed.
8) Not used.
9) Not used.
10) Case cleaning. The function is started with a pulse signal. See also description on page
5.
11) Forced refrigeration used (at hotgas defrost) when the input is closed.
12) Night blinds. Pulse signal activates the night blinds.
13) Not used.
14) "Forced closing" when input is in pos. OFF.
15) Case Shutdown when input is closed.
o84
DI3 config.
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.
o85
Railh. mode
Dew point value where the rail heat is minimum
This function is discussed earlier in the manual.
o86
DewP Min lim
Dew point value where the rail heat is maximum
This function is discussed earlier in the manual.
o87
DewP Max lim
Lowest permitted rail heat effect
Here the % part of the effect to be achieved when the dew point value is minimum.
o88
Rail Min ON%
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)
o89
DoorInjStart
Fan for "Forced Closing"
You can set whether fans should be operational or stopped if the function "Forced closing"
is activated here.
0: The fans will be stopped and defrosting will be permitted.
1: The fans will run and defrosting will be permitted.
2: The fans will be stopped and defrosting will not be permitted.
3: The fans will run and defrosting will not be permitted.
o90
ModeForcedCl
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
3: S5B temperature (Application 6 and 8 only)
4: S3B temperature (Application 6, 7 and 8 only)
o92
Displ menu 2
Display of temperature during normal operation
1: Air temperature. Weighted S3 + S4
2: Product temperature S6
o97
Disp. Ctrl.
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.
o98
Light MS = Off
