background image

AK-CC 550 

Manual  RS8EN502  ©  Danfoss  02-2010 

25

Fault message

In an error situation the LED’s on the front will flash 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

Description

Alarm relay groups (P41)

A1/---  High t.alarm

H

igh temperature alarm

1

A2/---  Low t. alarm

Low temperature alarm

2

A4/--- Door alarm

Door alarm

8

A5/--- Max hold time

The ”o16” function is activated during a coordinated defrost

16

A10/--- Inject prob.

Control problem

64

A11/--- No Rfg. sel.

No refrigerant selected

64

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

-

A74/--- AD fault

Error in the adaptive defrost function

16

A75/--- AD Iced

Evaporator is iced up. Reduction of air flow

16

A76/--- AD not defr.

Defrost of evaporator is not satisfactory

16

E1/---  Ctrl. error

Faults in the controller

32

E6/--- RTC error

Change battery and check clock

32

E20/--- Pe error

Error on pressure transmitter Pe

64

E23/--- S1 error

Error on S1 sensor

4

E24/--- S2 error

Error on S2 sensor

4

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

E37/--- S5 error B

Error on S5B 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 defined with a setting. The setting must be carried out in the group "Alarm destinations"

Settings from 
System manager

Settings from 

AKM (AKM destination)

Log

Alarm relay

Send via
Network

Non

High

Low-High

High

1

X

X

X

X

Middle

2

X

X

X

Low

3

X

X

X

Log only

X

Disabled

Содержание 084B8020

Страница 1: ...Controller for appliance control AK CC 550 Manual...

Страница 2: ...rosting sensor In addition to the outlet to the electronic injection valve of the type AKV the controller has 5 relay outputs which are defined by the use selected the individual usage options are des...

Страница 3: ...s use is for refrigeration appliances with one valve two evapo rators and two refrigeration sections Here the temperature and alarm monitoring are always controlled using the S4 sensor The S3 sensor i...

Страница 4: ...rol 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 evaporator S4 respectively A setting for th...

Страница 5: ...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...

Страница 6: ...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 ende...

Страница 7: ...eased beyond this defrost on demand will add the required additional defrosts The function requires the following connections Expansion valve type AKV Temperature signal from both S3 and S4 Temperatur...

Страница 8: ...have top priority during normal regulation But if one of the override functions is activated the Min On time will be disregarded Railheat It is possible to pulse control the power to the rail heat in...

Страница 9: ...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...

Страница 10: ...ion Door contact The door contact function can via the digital inputs be defined for two different applications Alarm monitoring The controller monitors the door contact and delivers an alarm message...

Страница 11: ...connected to the built in MODBUS the display can advantageously be changed to one of the same type but with Index A version with screw terminals If connection of two displays is required one must be c...

Страница 12: ...a product sensor but in application 9 and 10 it has a different use DI1 DI2 and DI3 are contact functions that can be used for one of the fol lowing functions door function alarm function defrost star...

Страница 13: ...n the light is switched off 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 filled with products Application 8 He...

Страница 14: ...icating application 1 If you employ another use signs are provided so that you can mount the relevant one It is only the lower sign that needs to be mounted The number is indicated on the left hand si...

Страница 15: ...f signal from S3 Compensation possibility due to long sensor cable r10 Adjust S3 Start stop of refrigeration With this setting refrigeration can be started stopped or a manual override of the outputs...

Страница 16: ...A12 Pulldown del 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 val...

Страница 17: ...temperature sensor Defrost method Here you set whether defrost is to be accomplished with electricity gas or none During defrost the defrost relay will be cut in d01 Def method 0 non 1 El 2 Gas Defro...

Страница 18: ...unT 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 d20 Drip...

Страница 19: ...R 2 Temperature sensor S1 Pt1000 Ohm at 0 C n57 Pe S1 select 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...

Страница 20: ...ress 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 o03 The address...

Страница 21: ...two minutes before the light is switched off 4 As 2 but if there are any 15 minute network errors the light will switch on and the night blind will open o38 Light config Activation of light relay The...

Страница 22: ...m This function is discussed earlier in the manual o86 DewP Min lim Dew point value where the rail heat is maximum This function is discussed earlier in the manual o87 DewP Max lim Lowest permitted ra...

Страница 23: ...or cooling u58 Comp1 LLSV Status on relay for fan u59 Fan relay Status on relay for defrost u60 Def relay Status on relay for railheat u61 Railh relay Status on relay for alarm u62 Alarm relay Status...

Страница 24: ...es S3 3 The evaporator drips off 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 seq...

Страница 25: ...ure 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...

Страница 26: ...e 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 se...

Страница 27: ...Alarm limit high A13 8 C 6 C 15 C 10 C 8 C 15 C Alarm limit low A14 5 C 5 C 30 C 0 C 0 C 30 C Sensor signal for alarm funct S4 A36 0 100 0 Interval between defrost d03 6 h 6h 12h 8h 8h 6h Defrost sens...

Страница 28: ...ost A12 1 1 1 1 1 1 1 1 1 1 0 min 240 min 90 High alarm limit for thermostat 1 A13 1 1 1 1 1 1 1 1 1 1 50 C 50 C 8 Low alarm limit for thermostat 1 A14 1 1 1 1 1 1 1 1 1 1 50 C 50 C 30 High alarm limi...

Страница 29: ...1 1 1 1 1 50 C 50 C 50 Pulse operation on fans 0 No pulse operation 1 At thermostat cuts out only 2 Only at thermostat cut outs during night operation F05 1 1 1 1 1 1 1 1 1 1 0 2 0 Period time for fa...

Страница 30: ...ings o67 1 1 1 1 1 1 1 1 1 1 0 Off 1 On 0 Off Input signal on DI3 Function high voltage input 0 not used 1 status on DI2 2 door function with alarm when open 3 door alarm when open 4 defrost start pul...

Страница 31: ...cooling u58 1 1 1 1 Status on relay for fan u59 1 1 1 1 1 1 1 1 1 1 Status on relay for defrost u60 1 1 1 1 1 1 1 1 1 Status on relay for railheat u61 1 1 1 1 1 1 1 Status on relay for alarm u62 1 1 1...

Страница 32: ...s which 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 com...

Страница 33: ...e 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 Rail heat...

Страница 34: ...30 V a c Electrical con nection cable Max 1 5 mm2 multi core cable Solid state output DO1 for AKV coil Max 240 V a c Min 28 V a c Max 0 5 A Leak 1 mA Max 1 pcs AKV Relays CE 250 V a c DO3 DO4 4 3 A DO...

Страница 35: ...th plug for direct connection 084B8574 EKA 164B External display with operation buttons and plug for direct connections 084B8575 EKA 163A External display with screw terminals 084B8562 EKA 164A Extern...

Страница 36: ...rves 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 specific...

Отзывы: