Page 1
User Guide
Controller for appliance control
AK-CC 450
Page 2
User Guide | Controller for appliance control, AK-CC 450
Contents
Introduction ....................................................................................................... 2
Operation ............................................................................................................ 4
Applications .....................................................................................................12
Survey of functions ........................................................................................ 15
Introduction
Application
Complete refrigeration appliance control with great exibility to
adapt to all types of refrigeration appliances and cold storage
rooms.
• For cooling with brine
• For use with a thermostatic expansion valve.
Advantages
• Energy optimisation of the whole refrigeration appliance
• One controller for several dierent refrigeration appliances
• Integrated display at the front of the controller
• Quick set-up with predened settings
• Built-in data communication
• Built-in clock function with power reserve
Operation .......................................................................................................... 26
Menu survey .....................................................................................................28
Connections ..................................................................................................... 32
Data ..................................................................................................................... 34
Ordering ............................................................................................................35
Principle
The temperature in the appliance is registered by one or two
temperature sensors which are located in the air ow before the
evaporator (S3) or after the evaporator (S4) respectively. A setting
for thermostat, alarm thermostat and display reading determines
the inuence the two sensor values should have for each individual function.
In addition product sensor S6, which can be optionally placed in
the appliance, can be used to register the temperature near the
required product in a certain place within the appliance.
The temperature of the evaporator is registered with the S5 sensor
which can be used as a defrosting sensor.
In addition to the output for the solenoid valve, the controller has
5 relay outputs which are dened by the use selected – the individual usage options are described in detail on page 12.
Functions
• Day/night thermostat with ON/OFF or modulating control
• Product sensor S6 with separate alarm limits
• Switch between thermostat settings via digital input
• Start of defrost via schedule, digital input or network
• Natural, electric or hot gas defrost
• Stop of defrost on time and/or temperature
• Coordination of defrost across several controls
• Pulsing of fans when thermostat is satised
• Case cleaning function for documentation of HACCP procedure
• Rail heat control via day/night load or dew point
• Door function
• Control of two compressors
• Control of night blinds
• Light control
• Heat thermostat
• Factory calibration that will guarantee a better measuring accuracy than stated in the standard EN 441-13 without subsequent
calibration (Pt 1000 ohm sensor)
• Integrated MODBUS communication with the option of mounting a LonWorks, DANBUSS or Ethernet communication card
Appliance examples
2 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 3
User Guide | Controller for appliance control, AK-CC 450
Applications
Here is an overview of the controller’s usage options.
A setting will congure input and outputs so that the controller’s
operation interface is directed at the selected application.
The current settings for the respective uses can be found on page
28.
Application 1-5 and 9
These options are applied to standard appliances or cold storage
rooms with one valve, one evaporator and one refrigeration section.
The sensors are used according to standard principles.
The output functions change depending on the selected application.
Application 6 and 8
This option is for refrigeration appliances with one valve, two
evaporators and two refrigeration sections.
There are two defrost sensors – one for each evaporator.
Application 6
Here the temperature and alarm monitoring are always controlled
using the S4 sensor.
The two S3 temperatures are used to display the reading for each
cooling section.
Application 6 is with alarm relay.
Application 8
Here temperature is always controlled using the S4 temperature.
The two S3 temperatures are used for alarm monitoring and
display readings for each refrigeration section. There are separate
alarm delays.
Application 8 is with relay for rail heat.
Application 7
This option is for refrigeration appliances with one valve, one
evaporator and two refrigeration sections.
Here temperature is always controlled using the S4 temperature.
The two S3 temperatures are used for alarm monitoring and
display readings for each refrigeration section. There are separate
alarm delays. There are two product sensors S6, one for each cooling section.
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | 3
Page 4
User Guide | Controller for appliance control, AK-CC 450
Operation
Cooling
Regulation can be performed on the basis of the following principles:
Direct expansion
The temperature is controlled either through the starting/stopping of a compressor or through the opening/closing of a solenoid valve in the liquid line.
Brine
Here, the temperature is controlled by opening/closing a solenoid
valve/motor valve in the brine supply.
Temperature control
The temperature in the appliance is registered by one or two
temperature sensors which are located in the air ow before the
evaporator (S3) or after the evaporator (S4) respectively. A setting
for the thermostat, alarm thermostat and display reading determines how much the two sensor values should inuence each
individual function, e.g. 50% will produce an equal value from
both sensors.
The actual temperature control can take place in two ways: as an
ordinary ON/OFF regulation with a dierential, or as a modulating control where the temperature variation will not be nearly as
great as in ON/OFF control. There is however a limit to the use of
a modulating control as it can only be used in DX central plant or
brine system.
In principle, regulation in this system is the same as described
above, but is now performed with a PI function. This results in
reduced uctuation of the regulated air temperature with stable
loads, giving a more constant air humidity.
The function gives a constant temperature regulation with a temperature value, which lies half-way between the on and o values
of the thermostat.
The operating parameters of the PI regulation are automatically
optimised via the preset on and o values and the degree of
opening of the valve.
The dierential aects the amplication of the regulator and can
therefore not be set to less than 2K in order to ensure regulation
stability.
In a decentralised plant the thermostat function with ON/OFF
control should be selected.
In a central plant the thermostat function may either be selected
for ON/OFF control or modulating control.
Temperature monitoring
Just as it is possible for the thermostat, the alarm monitoring can
be set with a weighting between S3 and S4 so that you can decide
how much the two sensor values should inuence the alarm
monitoring. Minimum and maximum limits can be set for alarm
temperature and time delays. A longer time delay can be set for
high temperature alarms after defrosting, appliance cleaning or
start-up.
Period time, n63
4 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 5
User Guide | Controller for appliance control, AK-CC 450
Thermostat bands
Thermostat bands can be used benecially for appliances where
dierent product types are stored which require dierent temperature conditions. It is possible to change between the two
dierent thermostat bands via a contact signal on a digital input.
Separate thermostat and alarm limits can be set for each thermostat band – also for the product sensor.
Night setback of thermostat value
In refrigeration appliances there may be big load dierences
between the shop’s opening and closing hours, especially if night
lids/blinds are used. The thermostat reference may be raised here
without it having any eect on the product temperature.
Change-over between day and night operation can take place, as
follows:
• via an external switch signal.
• via a signal from the data communication system.
Product sensor
A separate optional product sensor S6, which may be placed
in the appliance, can also be used and which can register and
monitor the temperature in the warmest part of the appliance.
There are separate alarm limits and time delays for the product
sensor.
Appliance cleaning
This function makes it easy for the shop’s sta to carry out a
cleaning of the appliance according to a standard procedure.
Appliance cleaning is activated via a signal – as a rule via a key
switch placed on the appliance.
Appliance cleaning is carried out via three phases:
1 - at the rst activation the refrigeration is stopped, but the fans
keep on operating in order to defrost the evaporators. ”Fan” is
shown on the display.
2 - at the second activation the fans are also stopped and the
appliance can now be cleaned. ”OFF” is shown on the display.
3 - At the third activation refrigeration is recommenced. The
display will show the actual appliance temperature (o97
setting).
When appliance cleaning is activated a cleaning alarm is transmitted to the normal alarm recipient. A later processing of these
alarms will document that the appliance has been cleaned as
often as planned.
Alarm monitoring
There are no temperature alarms during appliance cleaning.
- + + °C
1 ÷ + Fan
2 ÷ ÷ O
3 + + °C
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | 5
Page 6
User Guide | Controller for appliance control, AK-CC 450
Defrost
Depending on the application you may choose between the following defrost methods:
Natural: Here the fans are kept operating during the defrost
Electric: The heating element is activated
Hotgas: Here the solenoid valves are controlled so that the
hotgas can ow through the evaporator
Brine: Here, the solenoid/motor valve is opened on the supply
pipe, so that hot brine can be fed through.
Defrost sequence
1) Pump down
2) Defrost
3) Waiting position after defrost
4) Draining (drain delay. Hotgas only)
5) Drip o
6) Delay of fan
Hot gas defrost (application 4 only)
This type of connection can be used on systems with hotgas
defrost, but only in small systems in, say, supermarkets – the
functional content has not been adapted to systems with large
charges
Relay 2 is used for suction valve
Relay 4’s change-over function can be used by the bypass valve
and/or the hotgas valve.
Can be used together with PMLX and GPLX valves.
The time delay "d23" must be installed, which ensures that the
PMLX/GPLX valve is closed completely before the hotgas is turned
on.
Hot gas application
Drip tray heating element
It is possible to control a heating element in the drip tray for
hot gas defrosting. When defrosting is commenced, the heating
element is activated. The heating element remains activated until
a set time after defrosting has ended by time or temperature.
Start of defrost
A defrost can be started in dierent ways
Interval: Defrost is started at xed time intervals, say, every
eighth hour. An interval must ALWAYS be set to
a "higher" value than the period set between two
defrostings when a schedule or network signal is used.
Refrigeration time: Defrost is started at xed refrigeration time
intervals, in other words, a low need for refrigeration will
”postpone” the defrost
Schedule: Here defrost can be started at xed times of the
day and night. However, max. 6 times
Contact: Defrost is started with a contact signal on a digital input
Network: The signal for defrost is received from a system unit
via the data communication
Manual: An extra defrost can be activated from the controller’s
lower-most button
All the mentioned methods can be used at random – if any of
them is activated a defrost will be started.
Stop of defrost
Defrosting can be stopped by either:
• Time
• Temperature (with time as safety).
6 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 7
User Guide | Controller for appliance control, AK-CC 450
Coordinated defrost
There are two ways in which coordinated defrost can be arranged.
Either with wire connections between the controllers or via data
communication
Wire connections
The digital input DI2 is connected between the current controllers.
When one controller starts a defrost all the other controllers will
follow suit and likewise start a defrost. After the defrost the individual controllers will move into waiting position. When all are in
waiting position there will be a change-over to refrigeration.
Coordination via data communication
Here the system unit handles the coordination.
The controllers are gathered in defrosting groups and the system
unit ensures that defrosting is started in the group according to a
weekly schedule.
When a controller has completed defrosting, it sends a message
to the system unit and then goes into a waiting position. When
every controller in the group is in a waiting position, refrigeration
is again permitted in all the individual controllers.
Defrost on demand
Based on refrigeration time
When the aggregate refrigeration time has passed a xed time, a
defrost will be started.
Max. 10
System manager
Melting function
This function will stop the air ow in the evaporator from being reduced by frost created by uninterrupted operation for a long time.
The function is activated if the thermostat temperature has
remained in the range between -5°C and +10°C for a longer
period than the set melting interval. The refrigeration will then be
stopped for the set melting period. The frost will be melted so that
the air ow and hence the evaporator’s capacity will be greatly
improved.
Real-time clock
The controller has a built-in real-time clock which can be used to
start defrosts. This clock has a power reserve of four hours.
If the controller is equipped with data communication, the clock
will automatically be updated from the system unit.
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | 7
Page 8
User Guide | Controller for appliance control, AK-CC 450
Control of two compressors
General:
The two compressors must be of a type that can start up against a
high pressure.
The running compressor will continue until the temperature has
reached the cutout value. Then it will cut out. When the temperature again reaches the middle of the dierential, a compressor will
again be started.
If one compressor cannot maintain the temperature within the
dierential, the second compressor will also be started.
The compressor's settings for ”Min On time” and ”Min O time”
will always have top priority during normal regulation. But if one
of the override functions is activated, the ”Min On time” will be
disregarded.
Cyclical operation:
The two compressors must be of the same size.
When the controller demands refrigeration it will rst cut in the
compressor with the shortest operating time.
After the time delay the second compressor will be cut in.
When the temperature has dropped to ”the middle of the dierential”, the compressor with the longest operation time will be cut
out.
If one of the compressors has run on its own for two hours, the
compressors will be changed over so that operational time is balanced.
Sequential operation:
Here, compressor 1 will start as the rst one, and, when needed,
compressor 2 will be started.
Determined by thermostat band:
The compressor operating mode can be set in application 9 so
that both compressors run sequentially in thermostat band 1, but
compressor 2 is not permitted in thermostat band 2.
Railheat
It is possible to pulse-control the power to the rail heat in order to
save energy. Pulse control can either be controlled according to
day/night load or dew point.
Pulse control according to day and night
Various ON periods can be set for day and night operation.
A period time is set as well as the percentage part of the period in
which the rail heat is ON.
Pulse control according to dew point
In order to use this function a system manager of the type AK-SM
is required which can measure dew point and distribute the current dew point to the appliance controllers. For this the rail heat’s
ON period is controlled from the current dew point.
Two dew point values are set in the appliance control:
• One where the eect must be max. i.e.100%. (o87)
• One where the eect must be min. (o86).
At a dew point which is equal to or lower than the value in 086,
the eect will be the value indicated in o88.
In the area between the two dew point values the controller will
manage the power to be supplied to the rail heat.
Rail heat
During defrosting
During defrosting the rail heat will be controlled by the setting in
"d27" (O, On or pulsing).
8 | RS8EU702 |
Dew point
© Danfoss | ADAP-KOOL® | 2015.10
Page 9
User Guide | Controller for appliance control, AK-CC 450
Fan
Pulse control
To obtain energy savings it is possible to pulse control the power
supply to the evaporator fans.
Pulse control can be accomplished in one of the following ways:
- during the thermostat’s cutout period (cold room)
- during night operation and during the thermostat’s cutout period (appliance with night lid /blind)
A period of time is set as well as the percentage of this period of
time where the fans have to be operating.
Cutout of fans during plant breakdowns
If the refrigeration in a breakdown situation stops, the
temperature in the cold room may rise quickly as a result of the
power supply from large fans. In order to prevent this situation the
controller can stop the fans if the temperature at S5 exceeds a set
limit value.
Light function
The function can be used for controlling the light in a refrigeration
appliance or in a coldroom. It can also be used for controlling a
motorised night blind.
The light function can be dened in three ways:
- the light is controlled via a signal from a door contact. Together
with this function a time delay can be set so that the light is kept
on for 2 minutes after the door has been closed.
- the light is controlled via the day/night function
- the light is controlled via the data communication from a system
unit.
Here there are two operational options if data communication
should fail:
- The light can go ON
- The light can stay in its current mode.
The light load must be connected to the NC switch on the relay.
This ensures that the light remains on in the appliance if power to
the controller should fail.
The light is switched o when "r12" (Main switch) is set to o (see
o98).
The light is switched o when the appliance cleaning function is
activated.
Night blind
Motorised night blind can be controlled automatically from the
controller. The night blinds will follow the status of the light
function. When the light is switched on, the night blinds opens
and when the light is switched o, the night blinds close again.
When the night blinds are closed, it is possible to open them using
a switch signal on the digital input. If this input is activated, the
night blinds will open and the refrigeration appliance can be lled
with new products. If the input is activated again, the blinds close
again.
When the night blind function is used, the thermostat function
can control with dierent weightings between the S3 and S4
sensors. A weighting during day operation and another when the
blind is closed.
A night blind is open when the appliance cleaning function is
activated.
A setting can dene that the night blind is open when "r12" (Main
switch) is set to o (see o98).
When the night blind rolls down, the fans will stop for three
minutes so that the air circulation does not interrupt the
positioning of the blind.
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | 9
Page 10
User Guide | Controller for appliance control, AK-CC 450
Digital inputs
There are two digital inputs DI1 and DI2 with contact function and
one digital input DI3 with high voltage signal.
They can be used for the following functions:
- Retransmission of contacts position via data communication
- Door contact function with alarm
- Starting a defrost
- Main switch - start/stop of cooling
- Night setback
- Thermostat bands switch
- General alarm monitoring
- Case cleaning
- Forced cooling
- Override of night blinds
- Case shut down
- Coordinated defrost (DI2 only)
- Forced closing of valve (DI 3 only)
Forced closing
The solenoid valve can be closed with an external signal ( "Forced
closing").
If a defrost cycle is in progress, the forced closing status will not be
re-established until the defrost is completed.
The signal can be received from the DI3-input or via the data communication.
During a forced closing the fans can be set to stop or remain in
operation, and a defrost cycle can be set to be permitted (o90).
Door contact
The door contact function can via the digital inputs be dened for
two dierent applications:
Alarm monitoring
The controller monitors the door contact and delivers an alarm
message if the door has been opened for a longer period than
the set alarm delay.
Alarm monitoring and stop of refrigeration
When the door is opened the refrigeration is stopped, i.e. the
injection, the compressor and the fan are stopped and light
switch on.
If the door remains open for a longer time than the set restart
time, refrigeration will be resumed. This will ensure that
refrigeration is maintained even if the door is left open or if the
door contact should be defective. If the door remains open for
a longer period than the set alarm delay an alarm will also be
triggered.
Heating function
The heating function is used to prevent the temperature
becoming too low, e.g. in a cutting room, etc. The limit for when
the heating function cuts o is set as an oset value under the
current cutout limit for the refrigeration thermostat. This ensures
that refrigeration and heating do not occur simultaneously.
The dierential for the heating thermostat has the same value
as for the refrigeration thermostat. To prevent that the heating
thermostat cuts in during short-term drops in air temperature a
time delay can be set for when to change from refrigeration to
heating.
Refrigeration
start
Refrigeration
stop / reference
Neutral zone
Heat stop
Heat start
10 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 11
User Guide | Controller for appliance control, AK-CC 450
Data communication
The controller has xed built-in MODBUS data communication.
If there is a requirement for a dierent form of data
communication, a Lon RS 485 or DANBUSS module can be
inserted in the controller.
The connection must then be to terminal RS 485.
(To use a Lon RS 485 module and gateway type AKA 245 the
Gateway software must be Version 6.20 or higher.)
Display
The controller has one plug for a display. Here display type EKA
163B or EKA 164B (max. length 15 m) can be connected.
EKA 163B is a display for readings.
EKA 164B is both for readings and operation.
The connection between display and controller is with a cable
which has a plug at both ends.
If the distance between display and controller is greater than 15
m, the connection must take another form.
! Address o03 > 0
An extra module must also be mounted in the controller if data
communication is used.
The built-in MODBUS data communication is used so that the
display connection and the data communication to the other
controllers must take place via a module. The module can be:
Lon RS 485, DANBUSS or MODBUS.
When a display is to be connected to the built-in MODBUS, the
display can advantageously be changed to a type with screw
terminals. I.e. the type EKA 163A or EKA 164A.
If connection of two displays is required, one must be connected
to the plug (max. 15 m) and the other must then be connected to
the xed data communication.
The controllers address must be set higher than 0 in order for the
display to be able to communicate with the controller.
Important
All connections to the data communication MODBUS, DANBUSS
and RS 485 must comply with the requirements for data
communication cables. See literature: RC8AC.
Override
The controller contains a number of functions which can be used together with the override function in the master gateway/system
manager.
Function via data communication Function in gateway/system manager Used parameters in AK-CC 450
Start of defrosting Defrost control / Time schedule / Defrost group --- Def start
Coordinated defrost Defrost control / Defrost group --- HoldAfterDef / - - - DefrostState
Prevent defrost start --- Disable Def
Day/Night schedule Day/Night control / Time schedule / Light zone O39 light Remote
Light control Day/Night control / Time schedule --- Night setback
Forced closing Forced Close / Injection ON / AKC ON --- Forced cl.
Forced cooling --- Forced cool
Railheat link to dew point / Enhanced railheat --- Dew point
P0 optimization P0 Optimization The controller supports P0 optimization
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | 11
Page 12
User Guide | Controller for appliance control, AK-CC 450
Applications
Here is a survey of the controller’s eld of application.
A setting will dene the relay outputs so that the
controller’s interface will be targeted to the chosen
application.
On page 28 you can see the relevant settings for the
respective wiring diagrams.
General:
The eight applications are all adapted for
commercial refrigeration systems in the form of
either refrigeration appliances or cold storage
rooms.
In general all have outputs for:
• Solenoid valve or compressor
• Fan
• Defrost
• Light
In addition they have dierent uses and thereby
input and outputs.
Application 1
Standard applications.
S3 and S4 are temperature sensors. The application will determine whether
either one or the other or both sensors are to be used. S3 is placed in the air
ow before the evaporator. S4 after the evaporator.
A percentage setting will determine how the control is to be based. S5 is a
defrost sensor and is placed on/in the ns of the evaporator.
S6 is a product sensor.
DI1, DI2 and DI3 are contact functions that can be used for one of the following functions: door function, alarm function, defrost start, external main
switch, night operation, change of thermostat reference, appliance cleaning,
forced refrigeration or coordinated defrost. DI3 has a 230 V input. See the
functions in settings o02, o37and o84.
1
2
Application 2
Control of night blinds
Night blinds follow the status of the light function
– when the light is switched on, the night blinds
are up and when the light is switched o, the night
blinds are down. In addition a digital input provides
the option of forced opening of the blinds so that
the appliance can be lled with products.
Application 3
”Two-compressor” operation.
The two compressors must be of the same size. On
start-up (after defrosting, operational stop, etc.)
both compressors are started with a set time shift.
One compressor starts at half the dierential so that
an optimum adaptation of compressor capacity
takes place for the current load in the appliance/
room. There is automatic runtime equalisation
during cyclic operation.
For a more detailed description please refer to
earlier sections in the manual.
Application 4
Hot gas defrosting.
Hot gas defrosting is adapted to commercial
appliances/rooms with limited system lling.
One relay controls the main valve in the suction
line.
A changeover relay controls both the hot gas valve
and the drain valve.
This means that there is no time delay between
stops of hot gas and start of draining.
3
4
12 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 13
User Guide | Controller for appliance control, AK-CC 450
Application 5
Heat thermostat
The heat thermostat is typically used if the
temperature is to be controlled within narrower
limits, e.g. for cutting rooms, etc. The heating
thermostat can be set as a dierence in relation to
the cutout limit for the refrigeration thermostat so
that simultaneous refrigeration and heating are
avoided.
Application 6
Two refrigeration sections – two defrost outputs
This application is for refrigeration appliances with
one valve, two evaporators and two refrigeration
sections. The temperature is controlled and is
always alarm monitored according to the S4
temperature.
The two S3 sensors send a signal to the display in
each section.
Application 7
Two refrigeration sections – individual alarm/
display via S3
This application is for refrigeration appliances with
one valve, one evaporator and two refrigeration
sections. The temperature is always controlled
according to the S4 temperature.
There are two S3 sensors. Alarm monitoring and
display readings take place individually via the
"S3" sensors in each refrigeration section.
There are separate alarm delays for each cooling
section.
5
6
7
Application 8
Two refrigeration sections – two defrost outputs
This application is for refrigeration appliances with
one valve, two evaporators and two refrigeration
sections. The temperature is always controlled
according to the S4 temperature.
There are two S3 sensors. Alarm monitoring and
display readings take place individually via the
"S3" sensors in each refrigeration section.
There are separate alarm delays for each cooling
section.
• Rail heat
Application 9
Thermostat band-determined compressor
operation.
Runs in thermostat band 1 with sequential "twocompressor" operation; rst compressor 1, and
then compressor 2.
In thermostat band 2, compressor 2 can be deselected so that only compressor 1 is used.
There are separate thermostat dierences and
defrost stop denitions for the two thermostat
bands.
8
9
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | 13
Page 14
User Guide | Controller for appliance control, AK-CC 450
Connection labels
The controller is provided with labels from the factory indicating
application 1.
If you employ another use, labels are provided so that you can
mount the relevant one.
For application 2 to 5 and 9 it is only the lower label that needs to
be mounted.
For application 6, 7 and 8 both labels have to be mounted.
The number is indicated on the left-hand side of the label. Use the
label with the chosen application number.
14 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 15
User Guide | Controller for appliance control, AK-CC 450
Survey of functions
Function Para-
meter
Normal display
Normally the temperature value from one of the two thermostat sensors S3 or S4 or a
mixture of the two measurements is displayed.
In o17 the ratio is determined.
Thermostat Thermostat control
Set point
Regulation is based on the set value plus a displacement, if applicable. The value is set via a
push on the centre button.
The set value can be locked or limited to a range with the settings in r02 and r 03.
The reference at any time can be seen in "u91 Cutout temp".
Dierential
When the temperature is higher than the reference + the set dierential, the compressor
relay will be cut in. It will cut out again when the temperature comes down to the set reference.
Ref. Dif.
Setpoint limitation
The controller’s setting range for the setpoint may be narrowed down, so that much too
high or much too low values are not set accidentally - with resulting damages.
To avoid a too high setting of the setpoint, the max. allowable reference value may be
lowered.
To avoid a too low setting of the setpoint, the min. allowable reference value may be
increased.
Correction of the display’s temperature
If the temperature at the products and the temperature received by the controller are not
identical, an oset adjustment of the display temperature can be carried out.
Temperature unit
Set here if the controller is to show temperature values in °C or in °F.
Parameter by operation via data communication
Display air (u56)
Cutout °C
r01 Dierential
r02 Max cutout °C
r03 Min cutout °C
r04 Disp. Adj. K
r05 Temp. unit
°C=0. / °F=1
(Only °C on AKM, whatever the setting)
Correction of signal from S4
Compensation possibility due to long sensor cable
Correction of signal from S3
Compensation possibility due to long sensor cable
Start / stop of refrigeration
With this setting refrigeration can be started, stopped or a manual override of the outputs
can be allowed. (For manual control the value is set at -1. Then the valve outlet and the
relay outlets can be force-controlled by the respective reading parameters (u23, u58, etc.).
Here the read value can be overwritten.)
Start / stop of refrigeration can also be accomplished with the external switch function
connected to a DI input.
Stopped refrigeration will give a ”Standby alarm”.
Night setback value
The thermostat’s reference will be the setpoint plus this value when the controller changes
over to night operation. (Select a negative value if there is to be cold accumulation.)
Thermostat function
Here it is dened how the thermostat is to operate. Either as an ordinary ON/OFF thermostat or as a modulating thermostat.
1: ON/OFF thermostat
2: pulse width modulation (PWM)
With "PWM" the refrigeration/brine valve will limit the ow of refrigerant so that the temperature variation will be less than for the ON/OFF thermostat.
The dierential (r01) must not be set lower than 2K for "PWM".
In a decentralised plant you must select the ON/OFF thermostat setting, so that with applications 3 and 9 the setting is forced to "1".
Selection of thermostat sensor
Here you dene the sensor the thermostat is to use for its control function. S3, S4, or a
combination of them. With the setting 0%, only S3 is used (Sin). With 100%, only S4.
r09 Adjust S4
r10 Adjust S3
r12 Main Switch
1: Start
0: Stop
-1: Manual control of outputs allowed
r13 Night oset
r14 Therm. mode
r15 Ther. S4 %
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | 15
Page 16
User Guide | Controller for appliance control, AK-CC 450
Melt function
Only for control of refrigeration (-5 to +10°C). The function ensures that the evaporator will
not be blocked by frost. Here you set how often the function is to stop the refrigeration
and hence transform the frost to water (or ice if there is too much frost).
r16 MeltInterval
Melt period
Here you set how long an on-going melt function is to last.
Set point 2
The thermostat’s cutout value when the thermostat band 2 is activated via a digital input.
Correction of signal from S3B
(Application 6 and 7 only).
Correction of signal from S6
Compensation possibility due to long sensor cable
Correction of signal from S6B
(Application 7 only).
Selection of thermostat sensor S4% during night operation
Here you dene the sensor the thermostat is to use for its control function. S3, S4, or a
combination of them. With the setting 0%, only S3 is used (Sin). With 100%, only S4.
Heat function
Set the size of the Neutral Zone for changeover from cooling to heating
Time delay on transition from refrigeration phase to heating phase.
(there is no time delay on transition from heating phase to refrigeration phase).
Dierential for thermostat band 2
Application 9 only
Alarm Alarm settings
The controller can give an alarm in dierent situations. When there is an alarm all the lightemitting diodes (LED) will ash on the controller front panel, and the alarm relay will cut in.
Alarm delay (short alarm delay on air temperature)
If the upper or the lower alarm limit values are 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.
Time delay for door alarm
The time delay is set in minutes.
The function is dened in o02 , o37 or in o84.
Time delay for cooling (long alarm delay)
This time delay is used during start-up, during defrost, immediately after a defrost.
There will be change-over to the normal time delay (A03) when the temperature has
dropped below the set upper alarm limit.
The time delay is set in minutes.
Upper alarm limit
Here you set when the alarm for high temperature is to start. The limit value is set in °C
(absolute value).
The limit value will be raised during night operation. The value is the same as the one set
for night setback, but will only be raised if the value is positive.
Lower alarm limit
Here you set when the alarm for low temperature is to start. The limit value is set in °C
(absolute value).
Upper alarm limit for thermostat 2 (Thermostat band 2)
(Same function as for thermostat 1)
Lower alarm limit for thermostat 2 (Thermostat band 2)
(Same function as for thermostat 1)
Upper alarm limit for S6 temperature at thermostat 1 A22 HighLim1 S6
Lower alarm limit for S6 temperature at thermostat 1 A23 LowLim1 S6
Upper alarm limit for S6 temperature at thermostat 2 (Thermostat band 2) A24 HighLim2 S6
Lower alarm limit for S6 temperature at thermostat 2 (Thermostat band 2) A25 LowLim2 S6
r17 Melt period
r21 Cutout2 temp
r53 Adjust S3B
r59 Adjust S6
r60 Adjust S6B
r61 Ther.S4% Ngt
r62 Heat NZ
r63 HeatStartDel
r93 Di. 2
Night setbck
(start of nightsignal. 0=Day, 1=Night)
Forced cool.
(start of forced cooling)
Forced close
(Forced stop of cooling)
CaseShutDown
(Case shut down)
With data communication the importance of the individual alarms can be
dened. Setting is carried out in the
“Alarm destinations” menu via AKM.
A03 Alarm delay
A04 DoorOpen del
A12 Pulldown del
A13 HighLim Air
A14 LowLim Air
A20 HighLim2 Air
A21 LowLim2 Air
16 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 17
User Guide | Controller for appliance control, AK-CC 450
S6 temperature alarm delay
The alarm is activated if one of the relevant alarm limits A22, A23, A24 or A25 is
exceeded. The time delay is set in minutes.
Alarms will not activate when the setting is set to the maximum value.
Delay of a DI1 alarm
A cut-out/cut-in input will result in alarm when the time delay has been passed. The function is dened in o02.
Delay of a DI2 alarm
A cut-out/cut-in input will result in alarm when the time delay has been passed. The function is dened in o37
Signal to the alarm thermostat
Here you have to dene the ratio between the sensors which the alarm thermostat has to
use. S3, S4 or a combination of the two.
With setting 0% only S3 is used. With 100% only S4 is used
Time delay on S6 (product sensor) for pull-down (long alarm delay)
This time delay is used for start-up, during defrosting, immediately after a defrost and after
an appliance clean.
A change is carried out to standard time delay (A26) when the temperature has reached
below the set upper alarm limit.
The time delay is set in minutes.
Time delay on S3B alarm during normal regulation
(Application 7 and 8 only)
Compressor Compressor control
The compressor relay works in conjunction with the thermostat. When the thermostat calls
for refrigeration the compressor relay will be operated.
Running times
To prevent irregular operation, values can be set for the time the compressor is to run once
it has been started. And for how long it at least has to be stopped.
The running times are not observed when defrosts start.
Min. ON-time (in minutes) c01 Min. On time
Min. OFF-time (in minutes) c02 Min. O time
Time delay for couplings of two compressors
Settings indicate the time that has to elapse from the rst relay cuts in and until the next
relay has to cut in.
Select sequential or cyclic mode between the 2 compressors
1= sequential
2= cyclic
Compressor 2 in thermostat band 2
0: compressor 2 not running
1: compressor 2 running on demand (Sequential operation)
Compressor on-time at sensor error c86 CmpOn T Err
Compressor o-time at sensor error c87 CmpO Err
The LED on the controller’s front will show whether refrigeration is in progress. Comp Relay / Comp2 Relay
Defrost Defrost control
The controller contains a timer function that is zeroset after each defrost start.
The timer function will start a defrost if/when the interval time is passed.
The timer function starts when voltage is connected to the controller, but it is displaced
the rst time by the setting in d05.
If there is power failure the timer value will be saved and continue from here when the
power returns.
This timer function can be used as a simple way of starting defrosts, but it will always act
as safety defrost if one of the subsequent defrost starts is not received.
The controller also contains a real-time clock. By means of settings of this clock and times
for the required defrost times, defrost can be started at xed times of the day.
Defrost start can also be accomplished via data communication, via contact signals or
manual start-up.
All starting methods will function in the controller. The dierent functions have to be set,
so that multiple defrosts are avoided..
Defrost can be accomplished with electricity, hotgas or brine.
The actual defrost will be stopped based on time or temperature with a signal from a
temperature sensor.
A26 Al. Delay S6
A27 AI.Delay DI1
A28 AI.Delay DI2
A36 Alarm S4%
A52 PullD del.S6
A53 Al.Del.S3 B
Reset alarm
Ctrl. Error (EKC error)
c05 Step delay
c08 Step mode
c85 Cmp2 in Th2
Here you can read the status of the
compressor relay.
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | 17
Page 18
User Guide | Controller for appliance control, AK-CC 450
Defrost method
Here you set whether defrost is to be accomplished with electricity, gas, brine or (none).
During defrost the defrost relay will be cut in.
(With brine, the “cooling valve” will be kept open during the defrosting).
Defrost stop temperature
The defrost is stopped at a given temperature which is measured with a sensor (the sensor
is dened in d10).
The temperature value is set.
Interval between defrost starts
The function is zeroset and will start the timer function at each defrost start. When the
time has expired the function will start a defrost.
The function is used as a simple defrost start, or it may be used as a safeguard if the normal
signal fails to appear.
If master/slave defrost without clock function or without data communication is used, the
interval time will be used as max. time between defrosts.
If a defrost start via data communication does not take place, the interval time will be used
as max. time between defrosts.
When there is defrost with clock function or data communication, the interval time must
be set for a somewhat longer period of time than the planned one, as the interval time will
otherwise start a defrost which a little later will be followed by the planned one.
In connection with power failure the interval time will be maintained, and when the power
returns the interval time will continue from the maintained value.
The interval time is not active when set to 0.
Max. defrost duration
This setting is a safety time so that the defrost will be stopped if there has not already been
a stop based on temperature or via coordinated defrost.
Time staggering for defrost cutins during start-up
The function is only relevant if you have several refrigeration appliances or groups where
you want the defrost to be staggered in relation to one another. The function is furthermore only relevant if you have chosen defrost with interval start (d03).
The function delays the interval time d03 by the set number of minutes, but it only does
it once, and this at the very rst defrost taking place when voltage is connected to the
controller.
The function will be active after each and every power failure.
Drip-o time
Here you set the time that is to elapse from a defrost and until the compressor is to start
again. (The time when water drips o the evaporator).
d01 Def. method
0 = none
1 = El
2 = Gas
3 = Brine
d02 Def. Stop Temp
d03 Def Interval
(0=o)
d04
Max Def. time
d05 Time Stagg.
d06 DripO time
Delay of fan start after defrost
Here you set the time that is to elapse from compressor start after a defrost and until the
fan may start again. (The time when water is “tied” to the evaporator).
Fan start temperature
The fan may also be started a little earlier than mentioned under “Delay of fan start after
defrost”, if the defrost sensor S5 registers a lower value than the one set here.
Fan cut in during defrost
Here you can set whether fan is to operate during defrost.
0: Stopped (Runs during pump down)
1: Running (stopped during "fan delay")
2: Running during pump down and defrost. After that stopped
Defrost sensor
Here you dene the defrost sensor.
0: None, defrost is based on time
1: S5A
2: S4
3: In application 1 to 5 and 7: S5A + S6A
In application 6 and 8: Here is respectively stop on S5A and S5B.
Pumpdown delay
Set the time where the evaporator is emptied of refrigerant prior to the defrost.
(In application 4, the relay DO1 is interrupted during pump down. In the other applications, the relay is closed).
Drain delay (only in connection with hotgas)
Set the time where the evaporator is emptied of condensed refrigerant after the defrost.
Defrost on demand – aggregate refrigeration time
Set here is the refrigeration time allowed without defrosts. If the time is passed, a defrost
will be started.
With setting = 0 the function is cut out.
Delay on stop of heating in the drip tray
The time applies from the time the defrost stops by time or temperature to the time the
heating element in the drip tray needs to be disconnected.
Delay before opening hot gas valve d23 HotGasInjDel
d07 FanStartDel
d08 FanStartTemp
d09 FanDuringDef
d10 DefStopSens.
d16 Pump dwn del.
d17 Drain del
d18 MaxTherRunT
d20 Drip Tray del
18 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 19
User Guide | Controller for appliance control, AK-CC 450
Dene rail heat during defrost:
0: O
1: On
2: Pulsing
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
d27 Railh. at def.
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.)
If you wish to start an extra defrost, push the controller’s lowermost button for four seconds.
You can stop an ongoing defrost in the same way
Parameters for refrigeration function
Period time for the pulse width period (PWM)
Expert setting - The value should only be changed by specially trained sta.
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 sta.
Amplication factor at PWM
Expert setting - The value should only be changed by specially trained sta.
Integration time at PWM
Expert setting - The value should only be changed by specially trained sta.
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 setting +50°C the function is interrupted.
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
Pulse operation period for fan
Here the overall pulse time is set. The sum of ON-to and OFF time.
ON time for fan
Here the % part of the period the fans are to be in operation is set.
The LED on the controller’s front will indicate whether a defrost is going on. Fan Relay
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 temp.
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
n63 Pwm Period
n66 PwmWindUpFac
n67 Pwm Kp fact.
n68 Pwm Tn sec
F04 FanStopTemp.
F05 FanPulseMode
F06 Fan cycle
F07 Fan ON %
Here you can read the fan relay status,
or force-control the relay in “Manual
control” mode.
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.
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
t11-t16
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | 19
Page 20
User Guide | Controller for appliance control, AK-CC 450
Clock: Date setting t45
Clock: Month setting t46
Clock: Year setting t47
Miscellaneous Miscellaneous
Delay of output signal after start-up
After start-up or a power failure the controller’s functions can be delayed so that overloading of the electricity supply network is avoided.
Here you can set the time delay.
Digital input signal - DI1
The controller has a digital input 1 which can be used for one of the following functions:
O: The input is not used
1) Status display of a contact function
2) Door function. When the input is open it signals that the door is open. The refrigeration and the fans are stopped and light switched on. When the time setting in “A04” is
passed, an alarm will be given. 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 and light on. When
the time setting in “A04” is passed, there will be alarm.
4) Defrost. The function is started with a pulse signal. The controller will register when the
DI input is activated. The controller will then start a defrost cycle.
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 input is closed.
8) Separate alarm function. Alarm will be given when the input is closed.
9) Separate alarm function. Alarm will be given when the input is opened. (For 8 and 9 the
time delay is set in A27)
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.
13,14) Not used
15) Case Shutdown when input is closed.
If the controller is built into a network with data communication, it must have an address,
and the master gateway of the data communication must then know this address.
o01 DelayOfOutp.
o02 DI 1 Cong.
Denition takes place with the numerical
value shown to the left.
(0 = o)
DI state
(Measurement)
The DI input’s present status is shown
here. ON or OFF.
Address
The address is set between 0 and 240, depending on the system unit and the selected data
communication. If the system unit is gateway type AKA 245, the version must be 6.20 or
higher.
Service pin (LON only)
The address is sent to the gateway when the menu is set in pos. ON
IMPORTANT: Before you set o04, you MUST set o61. Otherwise you will be transmitting
incorrect data.
(The function is not used when the data communication is MODBUS)
Access code 1 (Access to all settings)
If the settings in the controller are to be protected with an access code you can set a
numerical value between 0 and 100. If not, you can cancel the function with setting 0. (99
will always give you access).
Sensor type for S3, S4, S5, S6
Normally a Pt 1000 sensor with great signal accuracy is used. But you can also use a sensor
with another signal accuracy. That may either be a PTC sensor (1000 ohm at 25°C)
All the mounted sensors S3-S6 must be of the same type.
Local readout of Software version c08 SW version
Max. standby time after coordinated defrost
When a controller has completed a defrost it will wait for a signal which tells that the
refrigeration may be resumed. If this signal fails to appear for one reason or another, the
controller will itself start the refrigeration when this standby time has elapsed.
Select signal for the display S4%
Here you dene the signal to be shown by the display.
S3, S4, or a combination of the two.
With setting 0% only S3 is used. With 100% only S4.
o03
o04
o05 Acc. code
o06 SensorCong
Pt = 0
PTC = 1
o16 Max HoldTime
o17 Disp. S4%
20 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 21
User Guide | Controller for appliance control, AK-CC 450
Digital input signal - D2
The controller has a digital input 2 which can be used for one of the following functions:
O: The input is not used.
1) Status display of a contact function
2) Door function. When the input is open it signals that the door is open. The refrigeration and the fans are stopped. When the time setting in “A04” is passed, an alarm will be
given. 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 setting in “A04” is passed an alarm will be given.
4) Defrost. The function is started with a pulse signal. The controller will register when the
DI input is activated. The controller will then start a defrost cycle. If the signal is to be
received by several controllers (coordnated defrost) it is important that ALL connections
are mounted the same way (DI to DI and GND to GND).
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) Separate alarm function. Alarm will be given when the input is closed.
9) Separate alarm function. Alarm will be given when the input is opened.
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) The input is used for coordinated defrost in conjunction with other controllers of the
same type
14) Not used
15) Case Shutdown when input is closed.
Conguration of light function
1) Light is controlled via day/night status
2) Light is controlled via data communication and "Light remote o39"
3) Light is controlled by door contact, dened in either o02, o37 or o84 where the setting is
selected to either 2 or 3. When the door is opened the relay will cut in. When the door is
closed again there will be a time delay of two minutes before the light is switched o.
4) As "2" but if there are any 15-minute network errors, the light will switch on and the
night blind will open.
Activation of light relay
The light relay can be activated here, but only if dened in o38 with setting 2.
Rail heat during day operation
The ON period is set as a percentage of the time
Rail heat during night operation
The ON period is set as a percentage of the time
Rail heat cycle
The period of time for the aggregate ON time + OFF time is set in minutes
Case cleaning
The status of the function can be followed here or the function can be started manually.
0 = Normal operation (no cleaning)
1 = Cleaning with fans operating. All other outputs are O.
2 = Cleaning with stopped fans. All outputs are O.
If the function is controlled by a signal at the DI1, DI2 or DI3 input, the relevant status can
be seen here in the menu.
Selection of application
The controller can be dened in various ways. Here you set which of the 8 applications is
required. On page 12 you can see a survey of applications.
This menu can only be set when regulation is stopped, i.e. “r12” is set to 0.
Transfer a set of pre-settings to the controller
An option exists to select quick settings for a number of parameters. This is based on
whether an appliance or a room needs to be controlled or whether the defrosting must be
stopped by time or by temperature. The overview can be seen on page 27.
This menu can only be set when the control is stopped, i.e. When "r12" is set at 0.
o37 DI2 cong.
o38 Light cong
o39 Light remote
o41 Railh.ON day%
o42 Railh.ON ngt%
o43 Railh. cycle
o46 Case clean
o61 Appl. Mode
o62 -
On setting the value will fall back to 0. A subsequent adjustment/setting of parameters can
be carried out as required.
Access code 2 (Access to adjustments)
There is access to adjustments of values, but not to conguration settings. If the settings
in the controller are to be protected with an access code you can set a numerical value between 0 and 100. If not, you can cancel the function with setting 0. If the function is used,
access code 1 (o05) must also be used.
Save as factory setting
With this setting you save the controller’s actual settings as a new basic setting (the earlier
factory settings are overwritten).
© Danfoss | ADAP-KOOL® | 2015.10
o64 Acc. code 2
o67 -
RS8EU702 | 21
Page 22
User Guide | Controller for appliance control, AK-CC 450
Digital input signal - DI3 (high voltage input)
The controller has a digital input 3 which can be used for one of the following functions:
O: 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 refrigeration 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 setting 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.
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 eect
Here the % part of the eect 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 cong = 2)
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.
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 dierent 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)
Display of temperature during normal operation
1: Air temperature. Weighted S3 + S4
2: Product temperature S6
Light and night blind denition
0: Light is switched o and night blind is open when the main switch is o
1: Light and night blind is independent of main switch.
o84 DI3 cong.
o85 Railh. mode
o86 DewP Min lim
o87 DewP Max lim
o88 Rail Min ON%
o89 DoorInjStart
o90 ModeForcedCl
o92 Displ menu 2
o97 Disp. Ctrl.
o98 Light MS = O
22 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 23
User Guide | Controller for appliance control, AK-CC 450
Conguration 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)
Service Service
Temperature measured with S5 sensor u09 S5 temp.
Status on DI1 input. on/1=closed u10 DI1 status
Read the duration of the ongoing defrost or the duration of the last completed defrost. u11 Defrost time
Temperature measured with S3 sensor u12 S3 air temp
Status at the day-/night operation (night operation: on/o) u13 Night Cond.
Temperature measured with S4 sensor u16 S4 air temp
Thermostat temperature u17 Ther. air
Read the ongoing cutin time for the thermostat or the duration of the last completed
cutin
Read the temperature at the S6 sensor u36 S6 temp
Status on DI2 output. on/1=closed
Air temperature. Weighted S3 +S4
Measured temperature for alarm thermostat
Status on relay for cooling
Status on relay for fan
Status on relay for defrost
Status on relay for railheat
Status on relay for alarm
Status on relay for light
Status on relay for valve in suction line
Status on relay for compressor 2
Temperature measured with S5B sensor
Temperature measured with S3B sensor
Temperature measured with S6B sensor
Status on relay for hot gas
Status on relay for heating element in drip tray
Status on relay for night blinds
Status on relay for defrost B
Status on relay for heat function
Readout of the actual rail heat eect in %
Readout of which thermostat used for regulation: 1= Thermostat 1,
2= Thermostat 2
Status on input DI3 (on/1 = 230 V)
Readout of the actual cutin value for the thermostat
Readout of the actual cut out value for the thermostat
Readout of the actual Brine PWM OD in %
Forced control
If you need to force-control an output, you should set r12 to -1 (manual mode). You should then select the relevant relay function, e.g. u58. Go
to the function by pressing the middle button. Select On.
P41 Al.Rel. Conf.
u18 Ther runtime
u37 DI2 status
u56 Display air
u57 Alarm air
u58 Comp1/LLSV
u59 Fan relay
u60 Def. relay
u61 Railh. relay
u62 Alarm relay
u63 Light relay
u64 SuctionValve
u67 Comp2 relay
u75 S5 temp. B
u76 S3 airtemp B
u79 S6 temp. B
u80 Hotgas valve
u81 Drip tray
u82 Blinds relay
u83 Def. relay B
u84 Heat relay
u85 Rail DutyC %
u86 Ther. band
u87 DI3 status
u90 Cutin temp.
u91 Cutout temp.
U02 Pwm OD %
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | 23
Page 24
User Guide | Controller for appliance control, AK-CC 450
Operating status (Measurement)
The controller goes through some regulating situations where it is just waiting for the next
point of the regulation. To make these “why is nothing happening” situations visible, you
can see an operating status on the display. Push briey (1s) the upper button. If there is a
status code, it will be shown on the display. The individual status codes have the following
meanings:
Normal regulation S0 0
Waiting for end of the coordinated defrost S1 1
When the compressor is operating it must run for at least x minutes. S2 2
When the compressor is stopped, it must remain stopped for at least x minutes. S3 3
The evaporator drips o and waits for the time to run out S4 4
Refrigeration stopped by main switch. Either with r12 or a DI-input S10 10
Refrigeration stopped by thermostat S11 11
Defrost sequence. Defrost in progress S14 14
Defrost sequence. Fan delay — water attaches to the evaporator S15 15
Refrigeration stopped due to open ON input or stopped regulation S16 16
Door is open. DI input is open S17 17
Melt function in progress. Refrigeration is interrupted S18 18
Modulating thermostat control S19 19
Emergency cooling due to sensor error *) S20 20
Manual control of outputs S25 25
Case cleaning S29 29
Forced cooling S30 30
Delay on outputs during start-up S32 32
Heat function r36 is active S33 33
Case shutdown S45 45
Ctrl. state:
(Shown in all menu displays)
Other displays:
The defrost temperature cannot be displayed. There is stop based on time non
Defrost in progress / First cooling after defrost -dPassword required. Set password PS
Regulation is stopped via main switch OFF
*) Emergency cooling will take eect when there is lack of signal from a dened S3 or S4 sensor. The regulation will continue with a registered average
cutin frequency. There are two registered values – one for day operation and one for night operation.
24 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 25
User Guide | Controller for appliance control, AK-CC 450
Fault message
In an error situation the LED’s on the front will ash and the alarm relay will be activated. If you push the top button in this situation you can see the
alarm report in the display.
There are two kinds of error reports - it can either be an alarm occurring during the daily operation, or there may be a defect in the installation.
A-alarms will not become visible until the set time delay has expired.
E-alarms, on the other hand, will become visible the moment the error occurs.
(An A alarm will not be visible as long as there is an active E alarm).
Here are the messages that may appear:
Code / Alarm text via data
communication
A1/--- High t.alarm
A2/--- Low t. alarm
A4/--- Door alarm
A5/--- Max hold time
A13/--- High temp S6 Temperature alarm. High S6 1
A14/--- Low temp S6 Temperature alarm. Low S6 2
A15/--- DI1 alarm DI1 alarm 8
A16/--- DI2 alarm DI2 alarm 8
A45/--- Standby mode Standby position (stopped refrigeration via r12 or DI input) -
A59/--- Case clean Case cleaning. Signal from DI input -
A70/--- HighTemp.S3B Temperature alarm. High S3B 1
A71/--- Low Temp.S3B Temperature alarm. Low S3B 2
A72/--- HighTemp.S6B Temperature alarm. High S6B 1
A73/--- Low Temp.S6B Temperature alarm. Low S6B 2
E1/--- Ctrl. error Faults in the controller 32
E6/--- RTC error Check clock 32
E25/--- S3 error Error on S3 sensor 4
E26/--- S4 error Error on S4 sensor 4
E27/--- S5 error Error on S5 sensor 4
E28/--- S6 error Error on S6 sensor 4
E34/--- S3 error B Error on S3B sensor 4
E37/--- S5 error B Error on S5B sensor 4
E38/--- S6 error B Error on S6B sensor 4
---/--- Max Def.Time Defrost stopped based on time instead of, as wanted, on temperature 16
Data communication
The importance of individual alarms can be dened with a setting. The setting must be carried out in the group "Alarm destinations"
Settings from
System manager AK-SM
High 1 X
Middle 2 X
Low 3 X
Log only
Disabled
Description Alarm relay groups
High temperature alarm
Low temperature alarm
Door alarm
The ”o16” function is activated during a coordinated defrost
Settings from
AKM (AKM destination)
Send via
Network
(P41)
1
2
8
16
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | 25
Page 26
User Guide | Controller for appliance control, AK-CC 450
Operation
Controller/Display
The values will be shown with three digits, and with a setting you
can determine whether the temperature is to be shown in °C or in
°F.
Light-emitting diodes (LED) on front panel
The LED’s on the front panel will light up when the relevant relay
is activated.
= Refrigeration
= Defrost
= Fan running
The light-emitting diodes will ash when there is an alarm.
In this situation you can download the error code to the display
and cancel/accept the alarm by giving the top button a brief push.
The buttons
When you want to change a setting, the upper and the lower
buttons will give you a higher or lower value depending on the
button you are pushing. But before you change the value, you
must have access to the menu. You obtain this by pushing the
upper button for a couple of seconds - you will then enter the column with parameter codes. Find the parameter code you want to
change and push the middle button until value for the parameter
is shown. When you have changed the value, save the new value
by once more pushing the middle button.
Get a good start
With the following procedure you can start regulation very quickly:
1 Open parameter r12 and stop the regulation (in a new and not
previously set unit, r12 will already be set to 0 which means
stopped regulation.)
2 Select electrical connection based on the drawings on page 12
and 13
3 Open parameter o61 and set the electric connection number in
it
4 Now select one of the preset settings from the table on page 27.
5 Open parameter o62 and set the number for the array of preset-
tings. The few selected settings will now be transferred to the
menu.
6 Open parameter r12 and start the regulation
7 Go through the survey of factory settings. The values in the grey
cells are changed according to your choice of settings. Make any
necessary changes in the respective parameters.
8 For network. Set the address in o03
9 Send address to system unit:
• MODBUS: Activate scan function in system unit
• If another data communication card is used in the controller:
- LON RS485: Activate the function o04
Examples
Set menu
1. Push the upper button until a parameter r01 is shown
2. Push the upper or the lower button and nd that parameter you
want to change
3. Push the middle button until the parameter value is shown
4. Push the upper or the lower button and select the new value
5. Push the middle button again to set the value.
Cutout alarm relay / receipt alarm/see alarm code
• A short press of the upper button
If there are several alarm codes they are found in a rolling stack.
Push the uppermost or lowermost button to scan the rolling
stack.
Set temperature
1. Push the middle button until the temperature value is shown
2. Push the upper or the lower button and select the new value
3. Push the middle button again to conclude the setting.
Reading the temperature at defrost sensor (Or product sensor, if
selected in o92.)
• A short press of the lower button
Manual start or stop of a defrost
• Push the lower button for four seconds.
26 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 27
User Guide | Controller for appliance control, AK-CC 450
Auxiliary schedule for settings (quick-setup)
Case Room
Defrost stop on
time
Preset settings (o62) 1 2 3 4 5 6
Temperature (SP)
Max. temp. setting (r02)
Min. temp. setting (r03)
Sensor signal for thermostat. S4% (r15)
Alarm limit high (A13)
Alarm limit low (A14)
Sensor signal for alarm funct.S4% (A36)
Interval between defrost (d03)
Defrost sensor: 0=time, 1=S5, 2=S4 (d10)
DI1 cong. (o02)
Sensor signal for display view S4% (017)
2°C -2°C -28°C 4°C 0°C -22°C
6°C 4°C -22°C 8°C 5°C -20°C
0°C -4°C -30°C 0°C -2°C -24°C
8°C 6°C -15°C 10°C 8°C -15°C
-5°C -5°C -30°C 0°C 0°C -30°C
0% 100% 0%
6 h 6h 12h 8h 8h 6h
0 1 1 0 1 1
Case cleaning (=10) Door function (=2)
Note: For applications 6 and 7 the sensor weighting for the S3/S4 sensors is not used for the thermostat, alarm thermostat and display readings as the
sensor uses are predened.
Defrost stop
on S5
100% 0%
Defrost stop on
time
0%
Defrost stop
on S5
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | 27
Page 28
User Guide | Controller for appliance control, AK-CC 450
Menu survey
Parameter EL-diagram page 12 or 13
Function Code 1 2 3 4 5 6 7 8 9
Normal operation
Temperature (setpoint)
- - - 1 1 1 1 1 1 1 1 1 -50°C 50°C 2
Thermostat
Dierential
Max. limitation of setpoint setting
Min. limitation of setpoint setting
Adjustment of temperature indication
Temperature unit (°C/°F)
Correction of the signal from S4
Correction of the signal from S3
Manual service, stop regulation, start regulation (-1, 0, 1)
Displacement of reference during night operation
Dene thermostat function
1=ON/OFF, 2=Pulse width modulating (PWM)
Denition and weighting, if applicable, of thermostat sensors S4% (100%=S4, 0%=S3)
Time between melt periods
Duration of melt periods
Temperature setting for thermostat band 2 . As dierential use
r01 1 1 1 1 1 1 1 1 1 0.1 K 20 K 2
r02 1 1 1 1 1 1 1 1 1 -49°C 50°C 50
r03 1 1 1 1 1 1 1 1 1 -50°C 49°C -50
r04 1 1 1 1 1 1 1 1 1 -10 10 0
r05 1 1 1 1 1 1 1 1 1 0/°C 1/F 0/°C
r09 1 1 1 1 1 1 1 1 1 -10 K 10 K 0
r10 1 1 1 1 1 1 1 1 1 -10 K 10 K 0
r12 1 1 1 1 1 1 1 1 1 -1 1 0
r13 1 1 1 1 1 1 1 1 1 -50 K 50 K 0
r14 1 1 1 1 1 1 1 1 1 1 2 1
r15 1 1 1 1 1 1 0 % 100 % 100
r16 1 1 1 1 1 1 1 1 1 0 hrs 10 hrs 1
r17 1 1 1 1 1 1 1 1 1 0 min. 30 min. 5
r21 1 1 1 1 1 1 1 1 1 -50°C 50°C 2
r01 for application 1-8. r93 for application 9
Correction of the signal from S3B
Correction of the signal from S6 r59 1 1 1 1 1 1 1 1 1 -10 K 10 K 0
Correction of the signal from S6B r60 1 -10 K 10 K 0
Denition and weighting, if applicable, of thermostat sensors
r53 1 1 1 -10 K 10 K 0
r61 1 1 1 1 1 1 0 % 100 % 100
when night cover is on. (100%=S4, 0%=S3)
Heat function
r62 1 0 K 50 K 2
Neutral zone between refrigeration and heat function
Time delay at switch between refrigeration and heat
r63 1 1 0 min. 240 min. 0
function
Dierential for thermostat band 2
r93 1 0.1 20 K 2 K
Alarms
Delay for temperature alarm
Delay for door alarm
Delay for temperature alarm after defrost
High alarm limit for thermostat 1
Low alarm limit for thermostat 1
High alarm limit for thermostat 2
Low alarm limit for thermostat 2
High alarm limit for sensor S6 at thermostat 1
Low alarm limit for sensor S6 at thermostat 1
High alarm limit for sensor S6 at thermostat 2
Low alarm limit for sensor S6 at thermostat 2
S6 alarm time delay
With setting = 240 the S6 alarm will be omitted
Alarm time delay or signal on the DI1 input
Alarm time delay or signal on the DI2 input
Signal for alarm thermostat. S4% (100%=S4, 0%=S3)
Delay for S6 (product sensor alarm) after defrost
Delay for S3B alarm during normal regulation
A03 1 1 1 1 1 1 1 1 1 0 min. 240 min. 30
A04 1 1 1 1 1 1 1 1 1 0 min. 240 min. 60
A12 1 1 1 1 1 1 1 1 1 0 min. 240 min. 90
A13 1 1 1 1 1 1 1 1 1 -50°C 50°C 8
A14 1 1 1 1 1 1 1 1 1 -50°C 50°C -30
A20 1 1 1 1 1 1 1 1 1 -50°C 50°C 8
A21 1 1 1 1 1 1 1 1 1 -50°C 50°C -30
A22 1 1 1 1 1 1 1 1 1 -50°C 50°C 8
A23 1 1 1 1 1 1 1 1 1 -50°C 50°C -30
A24 1 1 1 1 1 1 1 1 1 -50°C 50°C 8
A25 1 1 1 1 1 1 1 1 1 -50°C 50°C -30
A26 1 1 1 1 1 1 1 1 1 0 min. 240 min. 240
A27 1 1 1 1 1 1 1 1 1 0 min. 240 min. 30
A28 1 1 1 1 1 1 1 1 1 0 min. 240 min. 30
A36 1 1 1 1 1 1 0 % 100 % 100
A52 1 1 1 1 1 1 1 1 1 0 min. 240 min. 90
A53 1 1 0 min. 240 min. 90
Compressor
Min. ON-time
Min. OFF-time
Time delay for cutin of comp.2
Step Mode 1= Sequential, 2=Cyclic
Comp.2 can run in thermostat band 2
c01 1 1 1 1 1 1 1 1 1 0 min. 30 min. 0
c02 1 1 1 1 1 1 1 1 1 0 min. 30 min. 0
c05 1 1 0 sec 999 sec 5
c08 1 1 2 2
c85 1 0 1 0
0: No
1: Yes
Comp. on time when sensor fault
c86 1 0 min 240 min 15
Min.value
Max.-value
Factory
setting
SW = 1.8x
Actual
setting
28 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 29
User Guide | Controller for appliance control, AK-CC 450
Continued code 1 2 3 4 5 6 7 8 9 Min. Max. Fac. Actual
Comp. o time when sensor fault
c87 1 0 min 240 min 30
Defrost
Defrost method: 0=O, 1= EL, 2= Gas, 3 = Brine
Defrost stop temperature
Interval between defrost starts
Max. defrost duration
Displacement of time on cutin of defrost at start-up
Drip o time
Delay for fan start after defrost
Fan start temperature
Fan cutin during defrost
0: stopped
1: Running
2: Running during pump down and defrost
Defrost sensor: 0 =Stop on time, 1=S5, 2=S4, 3=
d01 1 1 1 1 1 1 1 1 1 0/O 3/bri 1/EL
d02 1 1 1 1 1 1 1 1 1 0°C 50°C 6
d03 1 1 1 1 1 1 1 1 1 0 hrs/O 240 hrs 8
d04 1 1 1 1 1 1 1 1 1 0 min. 360 min. 45
d05 1 1 1 1 1 1 1 1 1 0 min. 240 min. 0
d06 1 1 1 1 1 1 1 1 1 0 min. 60 min. 0
d07 1 1 1 1 1 1 1 1 1 0 min. 60 min. 0
d08 1 1 1 1 1 1 1 1 1 -50 °C 0 °C -5
d09 1 1 1 1 1 1 1 1 1 0 2 1
d10 1 1 1 1 1 1 1 1 1 0 3 0
(Application 1-5 and 7: Both S5A and S6A.
Application 6 and 8: individual S5A and S5B)
Pump down delay
Drain delay (used at hot gas defrost only)
Max. aggregate refrigeration time between two defrosts
Heat in drip tray. Time from defrosting stops to heating in
d16 1 1 1 1 1 1 1 1 1 0 min. 60 min. 0
d17 1 0 min. 60 min. 0
d18 1 1 1 1 1 1 1 1 1 0 hrs 48 hrs 0/OFF
d20 1 0 min. 240 min. 30
the drip tray is switched o
Delay time before opening hot gas valve
Rail heat during defrost
d23 1 0 min 60 min 0
d27 1 1 1 1 0 2 2
0: o
1: on
2: Pulsing
Defrost stop temp. thermostat band 2
Max. defrost duration thermostat band 2
d28 1 0°C 50°C 6
d29 1 0 min 360 min 45
Regulation parameter for refrigeration
Period time at PWM n63 1 1 1 1 1 1 1 1 1 30 sec. 900 sec. 300
Max. opening degree at PWM n64 1 1 1 1 1 1 1 1 1 0% 100% 100
Min. opening degree at PWM n65 1 1 1 1 1 1 1 1 1 0% 90% 0
Expert setting. Windup at PWM n66 1 1 1 1 1 1 1 1 1 0.2 1.0 1.0
Expert setting. Kp at PWM n67 1 1 1 1 1 1 1 1 1 0.5 10.0 4.0
Expert setting. Tn at PWM n68 1 1 1 1 1 1 1 1 1 60 sec 1800 sec 300
Fan
Fan stop temperature (S5)
Pulse operation on fans: 0=No pulse operation, 1=At
F04 1 1 1 1 1 1 1 1 1 -50°C 50°C 50
F05 1 1 1 1 1 1 1 1 1 0 2 0
thermostat cuts out only, 2= Only at thermostat cut outs
during night operation
Period time for fan pulsation (on-time + o-time)
On-time in % of period time
F06 1 1 1 1 1 1 1 1 1 1 min. 30 min. 5
F07 1 1 1 1 1 1 1 1 1 0 % 100 % 100
Real time clock
Six start times for defrost.
Setting of hours.
0=OFF
Six start times for defrost.
Setting of minutes.
0=OFF
Clock - Setting of hours
Clock - Setting of minute
Clock - Setting of date
Clock - Setting of month
Clock - Setting of year
Miscellaneous
Delay of output signals after start-up
Input signal on DI1. Function:
0=not used. 1=status on DI1. 2=door function with alarm
when open. 3=door alarm when open. 4=defrost start (pulsesignal). 5=ext.main switch. 6=night operation 7=Thermostat
t01 -
1 1 1 1 1 1 1 1 1 0 hrs 23 hrs 0
t06
t11 -
1 1 1 1 1 1 1 1 1 0 min. 59 min. 0
t16
t07 1 1 1 1 1 1 1 1 1 0 hrs 23 hrs 0
t08 1 1 1 1 1 1 1 1 1 0 min. 59 min. 0
t45 1 1 1 1 1 1 1 1 1 1 day 31 day 1
t46 1 1 1 1 1 1 1 1 1 1 mon. 12 mon. 1
t47 1 1 1 1 1 1 1 1 1 0 year 99 year 0
o01 1 1 1 1 1 1 1 1 1 0 sec 600 sec 5
o02 1 1 1 1 1 1 1 1 1 0 15 0
band changeover (activate r21). 8=alarm function when
closed. 9=alarm function when open. 10=case cleaning (pulse
signal). 11=forced cooling at hot gas defrost, 12=night cover.
15=application shutdown
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | 29
Page 30
User Guide | Controller for appliance control, AK-CC 450
Continued Code 1 2 3 4 5 6 7 8 9 Min. Max. Fac. Actual
Network address (0= o)
On/O switch (Service Pin message)
IMPORTANT! o61 must be set prior to o04
(used at LON 485 only and DANBUSS)
Access code 1 (all settings)
Used sensor type : 0=Pt1000, 1=Ptc1000,
Software Version
Max hold time after coordinated defrost
Select signal for display view. S4% (100%=S4, 0%=S3)
Input signal on DI2. Function:
(0=not used. 1=status on DI2. 2=door function with alarm
when open. 3=door alarm when open. 4=defrost start (pulsesignal). 5=ext. main switch 6=night operation 7=Thermostat
band changeover (activate r21). 8=alarm function when
closed. 9=alarm function when open. 10=case cleaning (pulse
signal). 11=forced cooling at hot gas defrost.). 12=night cover,
13=coordinated defrost). 15=application shutdown
Conguration of light function: 1=Light follows day /night
operation, 2=Light control via data communication via
‘o39’, 3=Light control with a DI-input, 4=As "2", but light
switch on and night cover will open if the network cut out
for more than 15 minutes.
Activation of light relay (only if o38=2) On=light
Rail heat On time during day operations
Rail heat On time during night operations
Rail heat period time (On time + O time)
Case cleaning. 0=no case cleaning. 1=Fans only. 2=All output
O.
Selection of EL diagram. See overview page 12 and 13
Download a set of predetermined settings. See overview page
27
Access code 2 (partial access)
Replace the controllers factory settings with the present settings
Input signal on DI3. Function:
(0=not used. 1=status on DI2. 2=door function with alarm
when open. 3=door alarm when open. 4=defrost start (pulsesignal). 5=ext. main switch 6=night operation, 7=Thermostat
band changeover (activate r21). 8=Not used. 9=Not used.
10=case cleaning (pulse signal). 11=forced cooling at hot gas
defrost, 12=night cover. 13=Not used. 14=Refrigeration
stopped (forced closing)). 15= application shutdown
Rail heat control
0=not used, 1=pulse control with timer function (o41 and
o42), 2=pulse control with dew point function
Dew point value where the rail heat is minimum
Dew point value where the rail heat is 100% on
Lowest permitted rail heat eect in %
Time delay from "open door” refrigeration is started
Fan operation on stopped refrigeration (forced closing):
0 = Stopped (defrosting permitted)
1= Running (defrosting permitted)
2=Stopped (defrosting not permitted)
3= Running (defrosting not permitted)
Denition of readings on lower button:
1=defrost stop temperature, 2=S6 temperature, 3=S5_B
temperature. 4= Readout of S3B temperature
Display of temperature
1= u56 Air temperature
2= u36 product temperature
Light and night blinds dened
0: Light is switch o and night blind is open when the
main switch is o
1: Light and night blind is independent of main switch
o03 1 1 1 1 1 1 1 1 1 0 240 0
o04 1 1 1 1 1 1 1 1 1 0/O 1/On 0/O
o05 1 1 1 1 1 1 1 1 1 0 100 0
o06 1 1 1 1 1 1 1 1 1 0/Pt 1/Ptc 0/Pt
o08 1 1 1 1 1 1 1 1 1 100 999
o16 1 1 1 1 1 1 1 1 1 0 min. 360 min. 20
o17 1 1 1 1 1 0 % 100 % 100
o37 1 1 1 1 1 1 1 1 1 0 15 0
o38 1 1 1 1 1 1 1 1 1 1 4 1
o39 1 1 1 1 1 1 1 1 1 0/O 1/On 0/O
o41 1 1 1 1 0 % 100 % 100
o42 1 1 1 1 0 % 100 % 100
o43 1 1 1 1 6 min. 60 min. 10
*** o46 1 1 1 1 1 1 1 1 1 0 2 0
* o61 1 1 1 1 1 1 1 1 1 1 8 1
* o62 1 1 1 1 1 1 1 1 1 0 6 0
*** o64 1 1 1 1 1 1 1 1 1 0 100 0
o67 1 1 1 1 1 1 1 1 1 0/O 1/On 0/O
o84 1 1 1 1 1 1 1 1 1 0 15 0
o85 1 1 1 1 0 2 0
o86 1 1 1 1 -10°C 50°C 8
o87 1 1 1 1 -9°C 50°C 17
o88 1 1 1 1 0 % 100 % 30
o89 1 1 1 1 1 1 1 1 1 0 min. 240 min. 30
o90 1 1 1 1 1 1 1 1 1 0 3 1
o92 1 1 1 1 1 1 1 1 1 1 4 1
o97 1 1 1 1 1 1 1 1 1 1 2 1
o98 1 1 1 1 1 1 1 1 1 0 1 0
30 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 31
User Guide | Controller for appliance control, AK-CC 450
Continued Code 1 2 3 4 5 6 7 8 9 Min. Max. Fac. Actual
Conguration of alarm relay
P41 1 1 1 1 1 1
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 = Cancel relay function
Service
Temperature measured with S5 sensor
Status on DI1 input. on/1=closed
Actual defrost time (minutes)
Temperature measured with S3 sensor
Status on night operation (on or o) 1=on
Temperature measured with S4 sensor
Thermostat temperature
Run time of thermostat (cooling time) in minutes
Temperature measured with S6 sensor
u09 1 1 1 1 1 1 1 1 1
u10 1 1 1 1 1 1 1 1 1
u11 1 1 1 1 1 1 1 1 1
u12 1 1 1 1 1 1 1 1 1
u13 1 1 1 1 1 1 1 1 1
u16 1 1 1 1 1 1 1 1 1
u17 1 1 1 1 1 1 1 1 1
u18 1 1 1 1 1 1 1 1 1
u36 1 1 1 1 1 1 1 1 1
(product temperature)
Status on DI2 output. on/1=closed
Air temperature. Weighted S3 + S4
Measured temperature for alarm thermostat
Status on relay for cooling
Status on relay for fan
Status on relay for defrost
Status on relay for rail heat
Status on relay for alarm
Status on relay for light
Status on relay for valve in suction line
Status on relay for compressor 2
Temperature measured with S5B sensor
Temperature measured with S3B sensor
Temperature measured with S6B sensor
Status on relay for hot gas- / drain valve
Status on relay for heating element in drip tray
Status on relay for night blinds
Status on relay for defrost B
Status on relay for heat function
Readout of the actual rail heat eect
1: Thermostat 1 operating, 2: Thermostat 2 operating
Status on high voltage input DI3
Readout of thermostats actual cut in value
Readout of thermostats actual cut out value
u37 1 1 1 1 1 1 1 1 1
u56 1 1 1 1 1 1
u57 1 1 1 1 1 1 1 1 1
** u58 1 1 1 1 1 1 1 1 1
** u59 1 1 1 1 1 1 1 1 1
** u60 1 1 1 1 1 1 1 1
** u61 1 1 1 1
** u62 1 1 1 1 1 1
** u63 1 1 1 1 1 1 1 1 1
** u64 1
** u67 1 1
u75 1 1
u76 1 1 1
u79 1
** u80 1
** u81 1
** u82 1
** u83 1 1
** u84 1
u85 1 1 1 1
u86 1 1 1 1 1 1 1 1 1
u87 1 1 1 1 1 1 1 1 1
u90 1 1 1 1 1 1 1 1 1
u91 1 1 1 1 1 1 1 1 1
Readout the brine PWM OD% U02 1 1 1 1 1 1 1 1 1
0 63 47
*) Can only be set when regulation is stopped (r12=0)
**) Can be controlled manually, but only when r12=-1
***) With access code 2 the access to these menus will be limited
Forced control
If you need to force-control an output, you should set r12 to -1 (manual mode). You should then select
the relevant relay function, e.g. u58. Go to the function by pressing the middle button. Select On.
Factory setting
If you need to return to the factory-set values, it can be done in this way:
- Cut out the supply voltage to the controller
- Keep upper and lower button depressed at the same time as you reconnect the supply voltage
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | 31
Page 32
User Guide | Controller for appliance control, AK-CC 450
Connections
Overview of outputs and
applications.
See also electrical diagrams earlier
in the manual
DI1
Digital input signal.
The dened function is active when the input is short-circuited/
opened. The function is dened in o02.
DI2
Digital input signal.
The dened function is active when the input is short-circuited/
opened. The function is dened in o37.
S3, S4, S5, S3B, S5B
Pt 1000 ohm sensor or PTC 1000 ohm sensor. All have to be of
the same type.
S6,S6B
Pt 1000 ohm sensor
S3, air sensor, placed in the warm air before the evaporator
S4, air sensor, placed in the cold air after the evaporator
(the need for either S3 or S4 can be deselected in the
conguration)
S5, defrost sensor, placed on the evaporator
S6, product sensor
EKA Display
If there is be external reading/operation of the controller, display
type EKA 163B or EKA 164B can be connected.
RS485 (terminal 51, 52, 53)
For data communication, but only if a data communication
module is inserted in the controller. The module can be a LON
RS485, DANBUSS or a MODBUS.
Terminal 51 = screen
Terminal 52 = A (A+)
Terminal 53 = B (B-)
(For LON RS485 and gateway type AKA 245 the gateway must be
version 6.20 or higher.)
Application DO1 DO2 DO3 DO4 DO5 DO6 DI1 DI2 DI3 AI1 AI2 AI3 AI4 AI5 AI6
1
2
3
4
5
6
7
8
9
/
/
/
/
/
/
• • •
Blinds
• • •
• • •
suction
heat
hotgas
B A
B A
• • •
• • •
• • •
• • •
• • •
S3B S5B S3A S4 S5 S6
S3B S6B S3A S4 S5 S6A
S3B S5B S3A S4 S5 S6
• • •
RJ45
For data communication, but only if a TCP/IP module is inserted in
the controller. (OEM)
MODBUS
For data communication.
Terminal 56 = screen
Terminal 57 = A+
Terminal 58 = B(Alternatively the terminals can be connected to an external
display type EKA 163A or 164A, but then they cannot be used
for data communication. Any data communication must then be
carried out by one of the other methods.)
Supply voltage
230 V a.c.
DO1
Connection of solenoid valve or relay for compressor. The coil
must be a 230 V a.c. coil.
DO2
Alarm
There is a connection between terminal 7 and 8 in alarm
situations and when the controller is without power.
Night blind
There is connection between terminal 7 and 9 when the night
blind is up/down.
Suction line valve
There is connection between terminal 7 and 9 when the
suction line must be open.
Rail heat
There is connection between terminal 7 and 8 when the
function must be active.
S3 S4 S5 S6
S3 S4 S5 S6
S3 S4 S5 S6
S3 S4 S5 S6
S3 S4 S5 S6
S3 S4 S5 S6
32 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 33
User Guide | Controller for appliance control, AK-CC 450
DO3
Refrigeration, Rail heat, Heat function, Defrost 2
There is connection between terminal 10 and 11 when the
function must be active.
Heating element in drip tray
There is connection between terminal 10 and 11 when heating
takes place.
DO4
Defrost
There is connection between terminal 12 and 14 when
defrosting takes place.
Hot gas / drain valve
There is connection between terminal 13 and 14 during normal
operation.
There is connection between terminal 12 and 14 when the hot
gas valves must open.
DO5
Fan
There is connection between terminal 15 and 16 when the fan
is on.
DO6
Light relay
There is connection between terminal 17 and 18 when the
light must be on.
DI3
Digital input signal.
The signal must have a voltage of 0 / 230 V AC.
The function is dened in o84.
Data communication
If data communication is used, it is important that the installation
of the data communication cable is performed correctly.
See separate literature No. RC8AC…
Electric noise
Cables for sensors, DI inputs and data communication must be
kept separate from other electric cables:
- Use separate cable trays
- Keep a distance between cables of at least 10 cm
- Long cables at the DI input should be avoided
Installation considerations
Accidental damage, poor installation, or site conditions, can give
rise to malfunctions of the control system, and ultimately lead to a
plant breakdown.
Every possible safeguard is incorporated into our products to
prevent this. However, a wrong installation, for example, could still
present problems. Electronic controls are no substitute for normal,
good engineering practice.
Danfoss wil not be responsible for any goods, or plant components, damaged as a result of the above defects. It is the installer's
responsibility to check the installation thoroughly, and to t the
necessary safety devices.
Special reference is made to the necessity of signals to the
controller when the compressor is stopped and to the need of
liquid receivers before the compressors.
Your local Danfoss agent will be pleased to assist with further
advice, etc.
Coordinated defrost via
cable connections
Coordinated defrost via
data communication
© Danfoss | ADAP-KOOL® | 2015.10
Max. 10
The following controllers can be connected
up in this way:
EKC 204A, AK-CC 210, AK-CC 250,
AK-CC 450, AK-CC 550,
Refrigeration is resumed when all
controllers have “released” the signal for
defrost.
The setting of controllers to coordinate
their defrosting takes place in the
gateway/system manager.
Refrigeration is resumed when all
controllers have “released” the signal for
defrost.
RS8EU702 | 33
Page 34
User Guide | Controller for appliance control, AK-CC 450
Data
Supply voltage 230 V a.c. +10/-15 %. 5 VA, 50/60 Hz
Sensors
Accuracy
Display LED, 3-digits
External display EKA 163B or 164B. (any EKA 163A or 164A)
Digital inputs
DI1, DI2
Digital input DI3 230 V a.c.
Electrical connection cable
Solid state
output
Relays*
S6, S6B: Pt 1000
S3, S4, S5, , S5B: Pt 1000 or PTC 1000 ohm
(All 4 must be of the same type)
Measuring range -60 to +120°C
±1 K below -35°C
Controller
±0.5 K between -35 to +25°C
±1 K above +25°C
Pt 1000 sensor
±0.3 K at 0°C
±0.005 K per grad
Signal from contact functions
Requirements to contacts: Gold plating
Cable length must be max. 15 m
Use auxiliary relays when the cable is longer
Max.1.5 mm2 multi-core cable
DO1
(for coil)
Max. 240 V a.c. , Min. 28 V a.c.
Max. 0.5 A
Leak < 1 mA
Max. 1 pcs. coil
CE
(250 V a.c.)
DO3, DO4 4 (3) A
DO2, DO5, DO6 4 (3) A
0 to +55°C, During operations
Environments
-40 to +70°C, During transport
20 - 80% Rh, not condensed
No shock inuence / vibrations
Density IP 20
Mounting DIN-rail or wall
Weight 0.4 Kg
Fixed / Build-in MODBUS
LON RS485
Data
communication
Extension options
DANBUSS
TCP/IP (OEM)
MODBUS
The controller cannot be hooked up with a monitor-
ing unit type m2.
Power reserve
for the clock
4 hours
EU Low Voltage Directive and EMC demands re CE-
marking complied with
Approvals
LVD tested acc. EN 60730-1 and EN 60730-2-9, A1, A2
EMC tested acc. EN 61000-6-2 and EN 61000-6-3
Relays are tested acc. to IEC 60079-15
* DO3 and DO4 are 16 A relays. DO2, DO5 and DO6 are 8 A relays. Max. load must be observed.
Capacitive load
The relays cannot be used for the direct connection of capacitive loads such as LEDs and on/o
control of EC motors.
All loads with a switch mode power supply must be connected with a suitable contactor or similar.
34 | RS8EU702 |
© Danfoss | ADAP-KOOL® | 2015.10
Page 35
User Guide | Controller for appliance control, AK-CC 450
Ordering
Type Function Code no.
AK-CC 450
EKA 175
EKA 178B Data communication module MODBUS 084B8571
EKA 176 Data communication module DANBUSS + Gateway 084B8583
EKA 176A Data communication module DANBUSS + AK-PI 200 084B8591
EKA 163B External display with plug for direct connection 084B8574
EKA 164B
EKA 163A External display with screw terminals 084B8562
EKA 164A External display with operation buttons and screw terminals 084B8563
Case controller with MODBUS data communication
Sensor connections are with screw terminals
Data communication module
LON RS 485
External display with operation buttons and plug for direct
connections
084B8022
084B8579
084B8575
Examples of order
Installation Data communication Connection Code no.
MODBUS 084B8022 (AK-CC 450)
LON 084B8022
DANBUSS 084B8022
MODBUS 084B8022
LON / DANBUSS 084B8022
L
L < 15 m
MODBUS / LON / DANBUSS 084B8022
L
084B8579
084B8583
084B8574 (Display)
084B7299 (Cable, 6 m)
084B8574 (Display)
084B7299 (Cable, 6 m)
084Bxxxx (Data module)
084B8562 (Display)
084Bxxxx (Data module)
L > 15 m
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | 35
Page 36
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alternations can be made without subsequential changes being necessary in specications already agreed.
All trademarks in this material are property of the respecitve companies. Danfoss and Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
© Danfoss | ADAP-KOOL® | 2015.10
RS8EU702 | AK-CC 450| 36
Loading...