Introduction
This document provides instructions for the Danfoss AK-CC 550A controller, a key component in refrigeration and air conditioning systems.
Identification
The identification section displays a diagram of the controller unit with its associated part number: 084B8030.
Dimensions
The dimensions diagram illustrates the controller's physical layout, indicating a length of 180mm, a height of 109mm, and a depth of 61.5mm. Terminal designations such as S2, S3, S4, S5, and S6 are also shown.
Principle
The principle diagram presents a basic electrical schematic, featuring connections labeled 'AKV', 'S5', 'S3', 'S4', 'S6', 'S2', 'P', and '230V a.c.'. It includes a crucial note: "Insulate sensor" with translations provided in multiple languages.
AKV Info
The AKV information section lists the available coil voltages for the unit: 230 V a.c. spole, 230 V a.c. coil, 230 V a.c. Spule, 230 V c.a. Bobine, 230 V c.a. Bobina, and 230 V c.a. Bobine.
Additional Information
The controller is available with manuals in the following languages:
- English Manual
- Deutsches Manual
- Manuel en français
- Dansk Manual
- Manual español
- Manuale in italiano
- Svenska Handbok
- Dutch Handleiding
Further information can be found at www.danfoss.com.
Application Configurations
The controller is supplied with factory-set signs indicating Application 1. If a different application is to be used, alternative signs are provided for mounting. The document details various application configurations (1 through 10) through electrical diagrams showing terminal connections and system layouts.
Diagrams on pages 2 and 3 illustrate these application-specific terminal layouts and system configurations.
Data Communication
The AK-CC 550A supports data communication via MODBUS, LON RS485/DANBUSS, RS485, and RJ45 (TCP/IP) interfaces. It can be connected to a System Manager/Gateway (e.g., AK-SM) and external displays like the EKA 163/164. The connection type and cable length (less than 15m or greater than 15m) are critical for proper communication.
Important Note: All connections to MODBUS and RS 485 data communication must comply with the requirements specified in the literature RC8AC.
Diagrams on page 4 illustrate these communication interfaces and connection scenarios.
Connections and Inputs/Outputs
The controller features various input and output terminals for sensors, actuators, and communication. An overview table maps applications to specific terminal configurations.
Overview of Outputs and Applications
A table on page 5 details the output (DO) and input (DI) terminal assignments for applications 1 through 10, including sensor inputs (S2-S6) and digital inputs (DI1-DI3).
Terminal Descriptions
- DI1 (Digital Input 1): Receives digital input signals. Functionality is determined by parameter o02 and is active when the input is short-circuited or opened.
- DI2 (Digital Input 2): Similar to DI1, receiving digital input signals. Functionality is determined by parameter o37 and is active when the input is short-circuited or opened.
- DI3 (Digital Input 3): Receives digital input signals with a voltage of 0 / 230 V AC. Functionality is determined by parameter o84.
- Pressure Transmitter (AKS 32R): Connects to terminals 30, 31, and 32. The signal can be shared by up to 10 controllers, provided there are no significant pressure drops between evaporators.
- Sensors (S2, S6): Typically Pt 1000 ohm sensors. S6 can also function as a product sensor or defrost sensor B/air sensor B, depending on the application.
- Sensors (S3, S4, S5): Pt 1000 ohm or PTC 1000 ohm sensors. S3 is for warm air before the evaporator, S4 for cold air after the evaporator. S5 is a defrost sensor placed on the evaporator. The need for S3 or S4 can be deselected in configuration.
- EKA Display: For external reading/operation, compatible with EKA 163B or EKA 164B displays.
- RS485 (Terminals 51, 52, 53): Used for data communication with modules like LON RS485, DANBUSS, or MODBUS. Terminal 51 is for the screen, 52 for A (A+), and 53 for B (B-). Requires gateway version 6.20 or higher for LON RS485 and AKA 245.
- RJ45: For data communication via TCP/IP modules (OEM).
- MODBUS (Terminals 56, 57, 58): For data communication. Terminal 56 for screen, 57 for A+, and 58 for B-.
- Supply Voltage: 230 V a.c., 50/60 Hz.
Output Terminals (DO1-DO6)
- DO1: Connects to expansion valve type AKV or AKVA (230 V a.c. coil).
- DO2: Functions include Alarm (terminal 7-8 when controller is without power), Rail heat/drip tray heating (terminal 7-9 when heating), Night blind (terminal 7-9 when up), and Suction line valve (terminal 7-9 when open).
- DO3: Functions include Refrigeration, Rail heat, Heat function, Defrost 2 (terminal 10-11 when active), and Heating element in drip tray (terminal 10-11 when heating).
- DO4: Functions include Defrost (terminal 12-14 when defrosting) and Hot gas/drain valve (terminal 13-14 during normal operation, terminal 12-14 when hot gas valves open).
- DO5: Controls the Fan (terminal 15-16 when fan is on).
- DO6: Functions include Light relay (terminal 17-18 when light is on) and Rail heat/Compressor 2 (terminal 17-19 when active).
DI3: Digital input signal requiring 0 / 230 V AC. Function defined in o84.
Data Communication: Proper installation of data communication cables is essential. Refer to RC8AC literature.
Installation and Safety
Electric Noise: Cables for sensors, DI inputs, and data communication must be kept separate from other electrical cables. Use separate cable trays and maintain a distance of at least 10 cm. Avoid long cables at DI inputs.
Installation Considerations: Accidental damage, poor installation, or site conditions can lead to malfunctions. While Danfoss products incorporate safeguards, incorrect installation can cause problems. Electronic controls do not replace good engineering practice. The installer is responsible for thorough installation checks and fitting necessary safety devices. Special attention should be paid to signals when the compressor is stopped and the need for liquid receivers before compressors. Local Danfoss agents can provide assistance.
Coordinated Defrost: Diagrams illustrate coordinated defrost operations via cable connections or data communication. Refrigeration resumes when all controllers have released the defrost signal. The gateway/system manager handles the coordination settings.
Operation
Display: Shows values with three digits and allows selection between Celsius (°C) and Fahrenheit (°F) for temperature display.
LED Indicators: Front panel LEDs indicate relay activation: = Refrigeration, = Defrost, = Fan running. Flashing LEDs indicate an alarm; error codes can be viewed and alarms acknowledged via the top button.
Buttons: Upper and lower buttons adjust values. Accessing the menu requires holding the upper button for a few seconds to enter parameter codes. The middle button is used to select parameters and confirm values.
Examples: Instructions are provided for setting menu parameters (e.g., r01) and setting temperature values.
Quick Operations:
- Cutout alarm relay / receipt alarm: Short press of the upper button. Multiple alarm codes can be scanned using the upper/lower buttons.
- Set temperature: Use the middle button to display the value, then upper/lower buttons to adjust, and middle button to confirm.
- Reading temperature at defrost sensor: Short press of the lower button.
- Manual start or stop of defrost: Press the lower button for four seconds (not applicable for Application 6).
Get a Good Start
A quick start procedure involves:
- Opening parameter r12 and stopping regulation (default is 0).
- Selecting electrical connection based on diagrams (pages 2-3).
- Setting the electric connection number in parameter o61.
- Selecting one of the preset settings from the table.
- Opening parameter o62 and setting the array number for presets.
- Selecting the refrigerant via parameter o30.
- Opening parameter r12 and starting regulation.
- Reviewing factory settings and making necessary adjustments.
- Setting the network address in o03 for network operation.
- Sending the address to the system unit (activating scan function for MODBUS or function o04 for LON RS485).
Auxiliary Schedule for Settings (Quick-Setup)
A table provides preset settings for various parameters like Temperature (SP), Max/Min temp setting, Sensor signal for thermostat, Alarm limits, and Interval between defrost, across different applications (Cases 1-6).
Parameter Survey
The following tables detail the controller's parameters, their functions, applicable applications, value ranges, and factory settings. These parameters allow for fine-tuning the controller's behavior for various refrigeration and air conditioning scenarios.
Normal Operation Parameters
| Parameter | Function | Code | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Min.-value | Max.-value | Factory setting | Actual setting |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature (setpoint) | Thermostat | r01 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -50°C | 50°C | 2 | |
| Differential | Thermostat | r02 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0.1 K | 20 K | 2 | |
| Max. limitation of setpoint setting | r03 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -49°C | 50°C | 50 | ||
| Min. limitation of setpoint setting | r04 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -50°C | 49°C | -50 | ||
| Adjustment of temperature indication | r05 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -10 | 10 | 0 | ||
| Temperature unit (°C/°F) | r05 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0/°C | 1/F | 0/°C | ||
| Correction of the signal from S4 | r09 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -10 K | 10 K | 0 | ||
| Correction of the signal from S3 | r10 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -10 K | 10 K | 0 | ||
| Manual service, stop regulation, start regulation (-1, 0, 1) | r12 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -1 | 1 | 0 | ||
| Displacement of reference during night operation | r13 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -50 K | 50 K | 0 | ||
| Define thermostat function (1=ON/OFF, 2=Modulating) | r14 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | ||
| Definition and weighting, if applicable, of thermostat sensors - S4% (100%=S4, 0%=S3) | r15 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 100 % | 100 | ||||
| Time between melt periods | r16 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 hrs | 10 hrs | 1 | ||
| Duration of melt periods | r17 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 min. | 30 min. | 5 | ||
| Temperature setting for thermostat band 2. As differential use r01 | r21 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -50°C | 50°C | 2 | ||
| Correction of the signal from S6 | r59 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -10 K | 10 K | 0 | ||||
| Definition and weighting, if applicable, of thermostat sensors when night cover is on. (100%=S4, 0%=S3) | r61 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 % | 100 % | 100 | ||||
| Neutral zone between refrigeration and heat function | Heat function | r62 | 1 | 0 K | 50 K | 2 | ||||||||||
| Time delay at switch between refrigeration and heat function | r63 | 1 | 0 min. | 240 min. | 0 |
Alarm Parameters
| Parameter | Function | Code | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Min. | Max. | Fac. | Actual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Delay for temperature alarm | Alarms | A03 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 min. | 240 min. | 30 | |
| Delay for door alarm | A04 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 min. | 240 min. | 60 | ||
| Delay for temperature alarm after defrost | 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 limit for thermostat 2 | A20 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -50°C | 50°C | 8 | ||
| Low alarm limit for thermostat 2 | A21 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -50°C | 50°C | -30 | ||
| High alarm limit for sensor S6 at thermostat 1 | A22 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -50°C | 50°C | 8 | ||||
| Low alarm limit for sensor S6 at thermostat 1 | A23 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -50°C | 50°C | -30 | ||||
| High alarm limit for sensor S6 at thermostat 2 | A24 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -50°C | 50°C | 8 | ||||
| Low alarm limit for sensor S6 at thermostat 2 | A25 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -50°C | 50°C | -30 | ||||
| S6 alarm time delay (With setting = 240 the S6 alarm will be omitted) | A26 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 min. | 240 min. | 240 | ||||
| Alarm time delay or signal on the DI1 input | A27 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 min. | 240 min. | 30 | ||
| Alarm time delay or signal on the DI2 input | A28 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 min. | 240 min. | 30 | ||
| Signal for alarm thermostat. S4% (100%=S4, 0%=S3) | A36 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 % | 100 % | 100 | ||||
| Delay for S6 (product sensor alarm) after defrost | A52 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 min. | 240 min. | 90 |
Compressor Parameters
| Parameter | Function | Code | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Min. | Max. | Fac. | Actual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min. ON-time | Compressor | c01 | 1 | 1 | 1 | 1 | 0 min. | 30 min. | 0 | |||||||
| Min. OFF-time | c02 | 1 | 1 | 1 | 1 | 0 min. | 30 min. | 0 | ||||||||
| Time delay for cutin of comp.2 | c05 | 1 | 0 sec | 999 sec | 5 |
Defrost Parameters
| Parameter | Function | Code | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Min. | Max. | Fac. | Actual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Defrost method: 0=off, 1= EL, 2= gAs | Defrost | d01 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0/off | 2/gAs | 1/EL | |
| Defrost stop temperature | d02 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0°C | 50°C | 6 | ||
| Interval between defrost starts | d03 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 hrs/Off | 240 hrs | 8 | ||
| Max. defrost duration | d04 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 min. | 360 min. | 45 | ||
| Displacement of time on cutin of defrost at start-up | d05 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 min. | 240 min. | 0 | ||
| Drip off time | d06 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 min. | 60 min. | 0 | ||
| Delay for fan start after defrost | d07 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 min. | 60 min. | 0 | ||
| Fan start temperature | d08 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -50 °C | 0 °C | -5 | ||
| Fan cutin during defrost (0: Stopped, 1: Running, 2: Running during pump down and defrost, 3: Running but stops at the temperature set in d41) | d09 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 3 | 1 | ||
| Defrost sensor (0 =Stop on time, 1=S5, 2=S4, 3=Sx) | d10 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 3 | 0 | ||
| Pump down delay | d16 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 min. | 60 min. | 0 | ||
| Drain delay (used at hot gas defrost only) | d17 | 1 | 0 min. | 60 min. | 0 | |||||||||||
| Max. aggregate refrigeration time between two defrosts | d18 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 hrs | 48 hrs | 0/OFF | ||
| Heat in drip tray. Time from defrosting stops to heating in the drip tray is switched off | d20 | 1 | 0 min. | 240 min. | 30 |
Adaptive Defrost Parameters
| Parameter | Function | Code | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Min. | Max. | Fac. | Actual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Time delay before opening of hot gas valve | Adaptive defrost | d21 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 4 | 0 | |
| Rail heat during defrost (0=off, 1=on, 2=Pulsating) | d23 | 1 | 0 min | 60 min | 0 | |||||||||||
| Max. duration of -d- in display | d27 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 2 | 2 | ||||
| Temperature limit for fan stop during defrost when d09 is set to 3 | d40 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 5 min. | 240 min. | 30 min. |
Injection Control Function Parameters
| Parameter | Function | Code | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Min. | Max. | Fac. | Actual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. value of superheat reference | Injection control function | n09 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2°C | 20°C | 12 | |
| Min. value of superheat reference | n10 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2°C | 20°C | 3 | ||
| MOP temperature. Off if MOP temp. = 15.0 °C | n11 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -50°C | 15°C | 15 | ||
| Period time of AKV pulsation | n13 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 sec | 6 sec | 6 | ||
| Max. limitation for the superheat reference when regulating with adaptiv liquid control | Only for trained personnel | P86 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1°C | 20°C | 3 | |
| Min. limitation for the superheat reference when regulating with adaptiv liquid control | P87 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0°C | 20°C | 1 |
Fan Parameters
| Parameter | Function | Code | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Min. | Max. | Fac. | Actual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fan stop temperature (S5) | Fan | F04 | 1 | 1 | 1 | 1 | 1 | 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 fan pulsation (on-time + off-time) | F06 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 min. | 30 min. | 5 | ||
| On-time in % of period time | F07 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0% | 100% | 100 |
Real Time Clock Parameters
| Parameter | Function | Code | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Min. | Max. | Fac. | Actual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Six start times for defrost. Setting of hours. (0=OFF) | Real time clock | t01 - t06 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 hrs | 23 hrs | 0 | |
| Six start times for defrost. Setting of minutes. (0=OFF) | t11 - t16 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 min. | 59 min. | 0 | ||
| Clock - Setting of hours | t07 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 hrs | 23 hrs | 0 | ||
| Clock - Setting of minute | t08 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 min. | 59 min. | 0 | ||
| Clock - Setting of date | t45 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 day | 31 day | 1 | ||
| Clock - Setting of month | t46 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 mon. | 12 mon. | 1 | ||
| Clock - Setting of year | t47 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 year | 99 year | 0 |
Miscellaneous Parameters
| Parameter | Function | Code | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Min. | Max. | Fac. | Actual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Delay of output signals after power failure | Miscellaneous | o01 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 sec | 600 sec | 5 | |
| 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 (pulse-signal). 5=ext.main switch. 6=night operation. 7=thermostat band changeover (activate r21). 8=alarm function when closed. 9=alarm function when open. 10=Appliance cleaning (pulse signal). 11=forced cooling at hot gas defrost, 12=night cover. 15=case shut down. 20=Refrigerant alarm. 21= adaptiv liquid control at short circuited) | o02 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 21 | 0 | ||
| Network address | o03 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 240 | 1 | ||
| On/Off switch (Service Pin message) IMPORTANT! o61 must be set prior to o04 (used at LON 485 and DANBUSS only) | o04 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0/Off | 1/On | 0/Off | ||
| Access code 1 (all settings) | o05 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 100 | 0 | ||
| Used sensor type: 0=Pt1000, 1=Ptc1000, | o06 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0/Pt | 1/Ptc | 0 | ||||
| Readout of software version | o08 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0/Pt | 1/Ptc | 0 | ||
| Max hold time after coordinated defrost | o16 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 min. | 360 min. | 20 | ||
| Select signal for display view. S4% (100%=S4, 0%=S3) | o17 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 % | 100 % | 100 | ||||
| Pressure transmitter working range - min. value | o20 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -1 bar | 5 bar | -1 | ||
| Pressure transmitter working range - max. value | o21 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 6 bar | 200 bar | 12 | ||
| Refrigerant setting: (List of refrigerants) | o30 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 42 | 0 |
Continued Parameters (Pages 9-11)
The following tables detail the controller's parameters, their functions, applicable applications, value ranges, and factory settings. These parameters allow for fine-tuning the controller's behavior for various refrigeration and air conditioning scenarios.
(Note: Due to the extensive nature of the parameter tables, only key sections are detailed here. The original document contains comprehensive tables for all parameters.)
Key parameter groups covered in detail in the original document include:
- Adaptive defrost (d21, d23, d27, d40, d41)
- Injection control function (n09, n10, n11, n13, P86, P87)
- Fan parameters (F04, F05, F06, F07)
- Real time clock parameters (t01-t08, t45-t47)
- Miscellaneous parameters (o01-o08, o16-o17, o20-o21, o30)
- Input signal configurations for DI1, DI2, DI3 (o02, o37, o84)
- Light function configuration (o38, o39)
- Rail heat control (o85, o86, o87, o88)
- Fan operation and defrost settings (o89, o90, o92)
- Temperature display and light/blind settings (o97, o98)
- Alarm relay configuration (P41)
- Various status readouts (u09-u91, U01, U10-U11)
For complete details, please refer to the original PDF document.
Fault Messages and Operating Status
In case of an error, the front panel LEDs flash, and the alarm relay is activated. Pushing the top button displays the alarm report. Alarms are categorized as A-alarms (visible after time delay) and E-alarms (visible immediately).
Fault Message Table
A table on page 12 lists fault messages with their Code, Description, and associated Alarm relay groups (P41).
- A-Alarms: High t.alarm, Low t. alarm, Door alarm, Max hold time, Inject prob., No Rfg. sel., High temp S6, Low temp S6, DI1 alarm, DI2 alarm, Standby mode, Case clean, Refrig Leak, CO2 alarm.
- AD-related: AD fault, AD Iced, AD not defr., AD flashgas.
- E-Alarms: Ctrl. error, RTC error, Pe error, S2 error, S3 error, S4 error, S5 error, S6 error, S3 error B, S5 error B.
- Other: Max Def.Time.
Operating Status Codes
The controller displays operating statuses to indicate its current state. These are accessed by briefly pressing the upper button.
Key operating status codes include:
- S0: Normal regulation
- S1: Waiting for end of coordinated defrost
- S2: Compressor running time minimum
- S3: Compressor stopped time minimum
- S4: Evaporator drips off
- S10: Refrigeration stopped by main switch
- S11: Refrigeration stopped by thermostat
- S14: Defrost sequence - Defrost in progress
- S15: Defrost sequence - Fan delay
- S16: Refrigeration stopped due to open ON input or stopped regulation
- S17: Door is open
- S18: Melt function in progress
- S19: Modulating thermostat control
- S20: Emergency cooling due to sensor error
- S21: Regulation problem in injections function
- S22: Start-up phase 2
- S23: Adaptive control
- S24: Start-up phase 1
- S25: Manual control of outputs
- S26: No refrigerant selected
- S29: Case cleaning
- S30: Forced cooling
- S32: Delay on outputs during start-up
- S33: Heat function active
- S45: Case shutdown
- S48: Operation with adaptive liquid control
Other statuses like 'non' (defrost temperature not displayed) and 'PS' (password required) are also mentioned.
Data Communication Settings
Settings from the System manager or AKM can define alarm importance and destinations, controlling how alarms are logged and sent via the network.
