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Function

Description

Values

Code

Short name

MC Defrost start

Master control signal for starting a defrost. At adap-

tive defrost the defrost might be skipped if the de-

frost is not needed

0=OFF, 1=ON

x13

--- MC def.start

MC Defrost state

Read out the actual state of the defrost

0=OFF, 1=ON

x14

--- DefrostState

MC Hold after de-

frost

Master control signal used for co-ordinated defrost

control to hold cabinets from returning to normal re-

frigeration after a defrost until all cabinets have termi-

nated defrost

0=OFF, 1=ON

x11

--- HoldAfterDef

MC Stop defrost

Master control signal used to prevent a defrost start in

a controller.

0=OFF, 1=ON

x12

--- Disable def.

MC Light signal

Master control signal for control of light via data com-

munication signal from system manager

0=OFF, 1=ON

o39

o39 Light remote

MC Actual dewpoint Master control signal sending the actual measured

dew point from system manager to controller over

the network.

x03

--- Act.DewPoint

MC Po load factor

x83

--- Load factor

MC Key/Bluetooth

lock

Master control signal that will lock down all Bluetooth

data communication and optionally also the opera-

tion of the display keys (depend upon selection in

P89 Display keyboard lock).

0=OFF, 1=ON

X33

--- BT lock

MC Min delta T

Required minimum delta temperature across evapo-

rator (S3 - Te) in order to keep the air temperature at

the actual set point

y04

--- Min Delta T

Fault message

In an error situation the alarm LED on the front will be on and the alarm relay will be activated (depending on

priority). If you push the alarm button for 3 seconds you can see the alarm report in the display. (Alarm priorities can

be changed. See the 

Table 35: Alarm relay priorities

.) Here are the messages that may appear:

Table 42: Fault message

Code

Alarm text

Description

E01

Hardware failure

The controller has a hardware failure

E06

Clock lost time

Clock has lost valid time

E20

Pe Evap. pressure A - Sensor error

Sensor signal is out of range. Please check the sensor for correct operation

E24

S2 Gas outlet A - Sensor error

Sensor signal is out of range. Please check the sensor for correct operation

E25

S3 Air ON evap. A - Sensor error

Sensor signal is out of range. Please check the sensor for correct operation

E26

S4 Air OFF evap. A - Sensor error

Sensor signal is out of range. Please check the sensor for correct operation

E27

S5 Evaporator A - Sensor error

Sensor signal is out of range. Please check the sensor for correct operation

A01

High temperature alarm A

The alarm temperature has been above the max alarm limit for a longer time period than the set alarm de-

lay.

A02

Low temperature alarm A

The alarm temperature has been below the min alarm limit for a longer time period than the set alarm de-

lay.

A04

Door open alarm

The door has been open for a too long time

A05

Max defrost hold time exceeded

The controller has been waiting longer time than permitted after a co-ordinated defrost.

A11

Refrigerant not selected

The refrigerant has not been selected hence control can not be initiated

A15

DI alarm 1

Alarm signal from digital input signal

A16

DI alarm 2

Alarm signal from digital input signal

A45

Main switch set OFF

The controller manin switch has been set to either Stop or Manaual control. Alternatively a digital input set

up for "main switch" function, has stopped control

A59

Case in cleaning mode

A case cleaning operation has been started on a case

AA2

CO

2

 leak detected

CO

2

 is leaking from the refrigerantion system

AA3

Refrigerant leak detected

Refrigerant is leaking from the refrigeration system

a04

Wrong IO configuration

Inputs and outputs have not been configured correctly

NOTE: 

Data communication

The importance of individual alarms can be defined with a setting. The setting must be carried out in the group

"Alarm destinations"

© Danfoss | Climate Solutions | 2022.08

BC365212986197en-000201 | 57

AK-CC55 Compact

Содержание AK-CC55

Страница 1: ...User Guide Case room controller EEV Type AK CC55 Compact SW Ver 2 1x For refrigeration appliances and cold storage rooms...

Страница 2: ...rature monitoring 11 Thermostat bands 11 Night setback of thermostat value 12 Temperature sensor types 12 Appliance cleaning 13 Appliance shutdown 13 Defrost 14 Electrical defrosting 14 Simple hot gas...

Страница 3: ...for rail heat 30 AKS 32R info 30 Coordinated defrost via cable connections 30 External display AK UI55 31 Connections 31 Operation 33 Operation via data communication 33 Direct operation 33 Operation...

Страница 4: ...splay control 54 Alarm relay priorities 54 Miscellaneous 55 Advanced 55 Fault message 57 Operating status 58 Product specification 59 Technical data 59 Electrical specifications 59 Sensor and measurin...

Страница 5: ...systems with liquid ejectors Principle The temperature in the appliance is registered by one or two temperature sensors which are located in the air flow before the evaporator S3 or after the evaporat...

Страница 6: ...lti Coil AKV application electrically operated expansion valve x x x 0 10 V to control external stepper driver x TXV application thermostatic expansion valve solenoid valve or compressor x Remote hot...

Страница 7: ...er has built in MODBUS data communication only AK CC55 Compact Compact version for controlling one evaporator An application mode setting will configure inputs and outputs for the desired use There ar...

Страница 8: ...Figure 5 AK UI55 Info Figure 6 AK UI55 Set Figure 7 AK UI55 Bluetooth AK CC55 Compact Danfoss Climate Solutions 2022 08 BC365212986197en 000201 8...

Страница 9: ...the evaporator is controlled by an electronic injection valve of the type AKV The valve operates as both expansion valve and solenoid valve The controller opens and closes the valve based on sensor r...

Страница 10: ...ignal loss to the controller will not result in liquid throughput to the compressor Danfoss accepts no responsibility for damage resulting from inadequate installation Thermostatic expansion valve con...

Страница 11: ...trol or modulating control Table 3 Control methods ON OFF control Modulating control Temperature monitoring Just as is possible for the thermostat the alarm monitoring can be set with a weighting betw...

Страница 12: ...Pt1000 Danfoss AKS 11 1 PTC1000 Danfoss EKS 111 2 NTC 5k Danfoss EKS 211 3 NTC 10k Danfoss EKS 221 4 User defined If User defined is selected three sensor measuring points must be provided and based o...

Страница 13: ...ration is stopped but the fans keep on operating in order to defrost the evaporators Fan is shown on the display At the second activation the fans are also stopped and the appliance can now be cleaned...

Страница 14: ...If hot gas defrost is selected in application 1 5 the compressor will be running during defrost and a hot gas valve HGV is bypassing the compressor discharge gas to the evaporator inlet and thereby th...

Страница 15: ...ming from within the evaporator and this means that the S5 sensor is rising fast when the inner layer of ice is melted This will sometimes cause parts of the evaporator not to be defrosted when defros...

Страница 16: ...ller has a built in real time clock which can be used to start defrosts This clock has a power reserve of four days If the controller is equipped with data communication the clock will automatically b...

Страница 17: ...f the same size while in sequential control compressor step 1 can be larger than step 2 Figure 19 Control of two compressors Cyclic control When the controller demands refrigeration it will first cut...

Страница 18: ...gue output in P82 Pulse control according to day and night Various ON periods can be set for day and night operation A cycle time is set as well as the percentage part of the period in which the rail...

Страница 19: ...In order to prevent this situation the controller can stop the fans if the temperature at S5 exceeds a set limit value The fans will start running again when the S5 temperature has dropped 2K below t...

Страница 20: ...e NC terminals on the relay This ensures that the light remains ON in the appliance if power to the controller should fail A setting defines how light is controlled when regulation is stopped via r12...

Страница 21: ...hen to change from refrigeration to heating Figure 24 Heating function Digital inputs There are two digital inputs DI1 and DI2 with dry contact function They can be used for the following functions Ta...

Страница 22: ...efective If the door remains open for a longer period than the set alarm delay an alarm will also be triggered Alarm monitoring and stop of fans When the door is opened only the fans are stopped If th...

Страница 23: ...ontrol to hold cabinets from returning to normal refrigeration after a defrost until all cabinets have terminated defrost MC Stop defrost Master control signal used to prevent a defrost start in a con...

Страница 24: ...ECO operations of fans Figure 26 Standard display case upright or normal with one evaporator Danfoss 84B8281 S S S S S S S Figure 27 Cold room configuration with door light and heat control function...

Страница 25: ...appl Pe S2 S3 S4 S5 7 EEV appl Pe S2 S3 S4 S5 8 EEV appl Pe S2 S3 S4 S5 9 EEV appl User def config User def User def User def Pe S2 S3 S4 S5 Optional use Table 8 Sensor description Pe Evaporating pres...

Страница 26: ...Light Fan Defrost 1 2 3 7 8 9 10 11 12 13 14 15 16 17 L N 40 0 10 V PWM S3 S4 S5 AI5 DI1 2 41 42 43 44 45 46 47 48 49 50 83 84 B A MODBUS 85 DI2 AO1 60 61 70 71 Danfoss 84B3258 Figure 31 Connections...

Страница 27: ...Defrost 1 2 3 7 8 9 10 11 12 13 14 15 16 17 L N 40 0 10 V PWM S2 Pe 5V s S3 S4 AI5 S5 5 41 42 43 44 45 46 47 48 49 50 83 84 B A MODBUS 85 DI2 AO1 60 61 70 71 P 1 3 2 Danfoss 84B3261 Figure 34 Connect...

Страница 28: ...4 Figure 37 Connections for application 9 115 230 V AC AKV 1 2 3 7 8 9 10 11 12 13 14 15 16 17 L N 40 0 10 V PWM S2 Pe 5V s S3 S4 AI5 S5 9 41 42 43 44 45 46 47 48 49 50 83 84 B A MODBUS 85 DI2 AO1 60...

Страница 29: ...ommunication Figure 39 Data communication IMPORTANT It is important that the installation of the data communication cable is performed correctly with sufficient distance to high voltage cables AKV inf...

Страница 30: ...al must be used The signal from one pressure transmitter can be received by up to 10 controllers There must not be a significant pressure drop from the pressure transmitter s position in the suction l...

Страница 31: ...ened depending on the function defined in o02 DI2 Digital input signal The defined function is active when the input is short circuited or opened depending on the function defined in o37 AO1 Analogue...

Страница 32: ...lant breakdown Every possible safeguard is incorporated into our products to prevent this However a wrong installation could still present problems Electronic controls are no substitute for normal goo...

Страница 33: ...and app via AK UI55 Bluetooth display The AK CC55 connect app is used for smart phone operation AK CC55 connect can be downloaded freely to a compatible iOS Android smartphone device Menu operation is...

Страница 34: ...p position of the menu or when max value has been reached the three dashes are shown in the top of the display At bottom position of menu or when min value has been reached the three dashes are shown...

Страница 35: ...ed for e g do4 not activated do 4 activated MODBUS quality See SW version Return Return Return Read output status Read input status StA The output s function determined at configuration DOs and AOs ca...

Страница 36: ...een defrost starts in d03 Set the desired defrost sensor in d10 Set the maximum defrost time in d04 Set the defrost stop temperature in d02 Open parameter r12 and start the regulation Go through the p...

Страница 37: ...r15 0 100 100 Melt interval 1 2 r16 0 h 10 h 1 h Melt period 1 2 r17 0 min 30 min 5 min S2 Gas outlet A Adjust ment 1 2 r19 10 0 C 10 0 C 0 0 C Cutout 2 0 2 r21 60 0 C 50 0 C 2 0 C Thermostat sensor S...

Страница 38: ...temp 1 2 d09 0 3 1 Defrost stop method 0 Time 1 S5 sensor 2 S4 sensor 1 2 d10 0 2 0 Pump down delay 1 2 d16 0 min 60 min 0 min Max thermostat runtime 1 2 d18 0 h 240 h 0h Min defrost time 1 2 d24 0 mi...

Страница 39: ...art 6 Minutes 1 2 t16 0 min 59 min 0 min Time hours 0 1 t07 0 h 23 h 0 h Time minutes 0 1 t08 0 min 59 min 0 min Time date 0 1 t45 1 31 1 Time month 0 1 t46 1 12 1 Time year 0 1 t47 0 100 0 Monday Fol...

Страница 40: ...rm 4 Defrost start 5 Main switch 6 Night setback 7 Thermostat band 8 Alarm at closed 9 Alarm at open 10 Case cleaning 11 Forced cool ing 12 Open blinds 13 Coordinated defrost 14 Forced closing 15 Shut...

Страница 41: ...8 0 999 0 Display keyboard lock 0 None 1 Local 2 Net work 1 2 P89 0 2 0 1 In order to change this parameter the regulation must be stopped via the parameter r12 Main switch OFF 1 In order to change th...

Страница 42: ...rameter the regulation must be stopped via the parameter r12 Main switch OFF 2 In order to change this parameter the parameter r12 Main switch must be set in position SEr allowing manual control of ou...

Страница 43: ...ON 0 X u62 0 1 0 Light 0 OFF 1 ON 0 X u63 0 1 0 Compressor 2 0 OFF 1 ON 0 X u67 0 1 0 Blinds 0 OFF 1 ON 0 X u82 0 1 0 Air heater 0 OFF 1 ON 0 X u84 0 1 0 Railheat power 0 X u85 0 100 0 Thermostat ban...

Страница 44: ...he app Click on the display s Bluetooth button for 3 seconds The Bluetooth light will then flash while display is showing the controller s address Connect to the controller from the app Figure 48 AK U...

Страница 45: ...ion Select the function of the digital output 0 None 1 Fans 2 Fan ECO 3 Defrost 4 Rail heat 5 Alarm 6 Light 7 Blinds 8 Compressor LLSV 9 Compressor 2 10 Air heater q03 q03 DO3 Config DO4 Configuration...

Страница 46: ...era ture sensor in the reference point X26 SP3 Temp Sensor point 3 kohm The resistance value in kohm for the user defined temperature sensor in the reference point X27 SP3 kohm Sensor point 3 ohm The...

Страница 47: ...ay will be cutin It will cutout again when the temperature comes down to the set cut out limit r93 r93 Diff Th2 Max cutout limit Setpoint limitation The controller s setting range for the thermostat s...

Страница 48: ...p Reset alarms Command for resetting all alarms unless they are still active 0 OFF 1 ON x15 Reset alarm Alarm sensor S4 A Signal to the alarm thermostat Here you have to de fine the ratio between the...

Страница 49: ...required select highest value which corresponds to OFF n11 n11 MOP temp AKV Period time Period time for the pulse width modulation n13 n13 AKV Period Min superheat liq uid ctrl Min value for the super...

Страница 50: ...a safe guard 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...

Страница 51: ...ould show the defrost code d after a defrost The normal temper ature readout is normally started when the tempera ture in the case is OK again or if a high temperature alarm is raised d40 d40 Disp d d...

Страница 52: ...cle Fan ON cycle ON time for fan The ON period is set as a percentage of the period time F07 F07 Fan ON Fan stop high S5 temp Fan stop temperature The function stops the fans in an error situation so...

Страница 53: ...control 23 Adaptive superheat control 24 Start injection 25 Manual control 26 No refrigerant selected 29 Case clean ing 30 Forced cooling 31 Door open 32 Power up delay 33 Air heating 45 Shut down con...

Страница 54: ...ia the System Manager 0 None 1 Local 2 Network P89 P89 LockDispKey Alarm relay priorities Table 35 Alarm relay priorities Function Description Values Code Short name Alarm relay Actual status of outpu...

Страница 55: ...d stop bit Select parity and stop bit of Modbus messages 0 None 1 Even 2 Odd x97 Parity bit Table 38 Miscellaneous Sensor adjustment Function Description Values Code Short name S2 Gas outlet A Ad just...

Страница 56: ...Expert injection setting contact Danfoss for further information Y31 P Gain OD Ctrl status Readout showing which part of the injection function that is in control of the valve opening degree Values m...

Страница 57: ...Clock lost time Clock has lost valid time E20 Pe Evap pressure A Sensor error Sensor signal is out of range Please check the sensor for correct operation E24 S2 Gas outlet A Sensor error Sensor signa...

Страница 58: ...ntrol S20 Emergency control 1 The air temperature is controlled according to an emergency procedure due to sensor error Pe S2 S3 or S4 S23 Adaptive superheat control The superheat of the evaporator is...

Страница 59: ...put relay specifications Input and output relay specifications Input output Description Digital input DI1 DI2 Signal from dry contact functions Requirements to contacts Gold plating Cable length must...

Страница 60: ...tion built in MODBUS Clock battery backup power reserve 4 days Mounting DIN rail Environmental conditions Table 48 Environmental conditions Environmental conditions Value Ambient temperature range ope...

Страница 61: ...AK UI55 Bluetooth External display with Bluetooth operation 084B4075 AK UI55 Set External display with control buttons 084B4076 AK UI55 Mounting Base Danfoss 80G8236 Mounting kit for display types AK...

Страница 62: ...splay module Display module Certification Mark Country AK UI55 Bluetooth RED CE EU AK UI55 Bluetooth FCC FCC ID USA AK UI55 Bluetooth IC ISED IC ID Canada AK UI55 Bluetooth CMIIT CMITT ID China AK UI5...

Страница 63: ...license exempt RSS standard s Operation is subject to the following two conditions 1 this device may not cause interference and 2 this device must accept any interference including interference that...

Страница 64: ...eets certificates and declarations manuals and guides 3D models and drawings case stories brochures and much more Start searching now at www danfoss com en service and support documentation Get local...

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