Danfoss AK-CC55 Compact Case Controllers
Product Specifications
- Model: AK-CC55 Compact
- Software Version: 2.1x
- Communication Protocol: Modbus RTU
- Communication Speed: Default auto detection
- Communication Settings: 8 bit, Even parity, 1 stop bit
Product Usage Instructions
Modbus Communication
- Danfoss AK-CC55 controllers use Modbus RTU for communication.
- The default communication settings are 8 bit, Even parity, 1 stop bit. The network address can be set using the AK-UI55 setting display. Network address and communication settings can be changed through the AK-UI55 Bluetooth display and the AK-CC55 Connect service app. For more information, refer to the AK-CC55 Documentation.
AK-CC55 Documentation
- The Modbus Application Protocol Specification for Danfoss AK-CC55 controllers can be found at http://modbus.org/specs.php. User Guides and Installation Guides for AK-CC55 can be found on the Danfoss website at
Danfoss Documentation.
Parameter List for Compact (084B4081)
Here are some of the parameter readouts and settings available for the AK-CC55 Compact:
- Sum alarm
- Ctrl. State
- Ther. air
- EvapTemp Te
- S2 temp
Programming Guide
Copyright, Limitation of Liability and Revision Rights
- This publication contains information proprietary to Danfoss. By accepting and using this interface description the user agrees that the information contained herein will be used solely for operating equipment from Danfoss or equipment from other vendors provided that such equipment is intended for communication with Danfoss AK-CC55 Compact Controllers over the RS 485 Modbus serial communication link.
- This publication is protected under the Copyright laws of Denmark and most other countries.
- Danfoss does not guarantee that a software program produced according to the guidelines provided in this manual will function properly in every physical, hardware or software environment.
- Although Danfoss has tested and reviewed the documentation within this interface description, Danfoss makes no warranty or representation, either express or implied, with respect to this documentation, including its quality, performance, or fitness for a particular purpose.
- In no event shall Danfoss be liable for direct, indirect, special, incidental, or consequential damages arising out of the use, or the inability to use information contained in this interface description, even if advised of the possibility of such damages.
- In particular, Danfoss is not responsible for any costs including but not limited to those incurred as a result of lost profits or revenue, loss or damage of equipment, loss of computer programs, loss of data, the costs to substitute these, or any claims by third parties.
- Danfoss reserves the right to revise this publication at any time and to make changes in its contents without prior notice or any obligation to notify previous users of such revisions or changes.
Modbus Communication
- Danfoss AK-CC55 controllers are using Modbus RTU.
- Communication speed is default “auto detection”
- Default communication settings are “8 bit, Even parity, 1 stop bit”.
- Network address can be set via AK-UI55 setting display and Network address as well as Network communication settings can be changed via the AK-UI55 Bluetooth display and the AK-CC55 Connect service app. For further information see AK-CC55 Documentation.
- Danfoss AK-CC55 controllers are Modbus compliant and MODBUS Application Protocol Specification can be found via below link http://modbus.org/specs.php
AK-CC55 Documentation
- AK-CC55 User Guides and Installation Guides can be found via www.danfoss.com: https://www.danfoss.com/en/products/electronic-controls/dcs/evaporator-and-room-control/#tab-overview
Parameter list for Compact (084B4081)
| Parameter | PNU | Value | Min. | Max. | Type | RW | Scale | A |
| Readouts | ||||||||
| — Sum alarm | 2541 | 0 | 0 | 1 | Boolean | R | 1 | |
| u00 Ctrl. State | 2007 | 0 | 0 | 48 | Integer | R | 1 | |
| u17 Ther. air | 2532 | 0 | -2000 | 2000 | Float | R | 0.1 | |
| u26 EvapTemp Te | 2544 | 0 | -2000 | 2000 | Float | R | 0.1 | |
| u20 S2 temp | 2537 | 0 | -2000 | 2000 | Float | R | 0.1 | |
| u12 S3 air temp. | 2530 | 0 | -2000 | 2000 | Float | R | 0.1 | |
| u16 S4 air temp. | 2531 | 0 | -2000 | 2000 | Float | R | 0.1 | |
| u09 S5 temp | 1011 | 0 | -2000 | 2000 | Float | R | 0.1 | |
| U72 Food temp | 2702 | 0 | -2000 | 2000 | Float | R | 0.1 | |
| u23 EEV OD % | 2528 | 0 | 0 | 100 | Integer | R | 1 | X |
| U02 PWM OD % | 2633 | 0 | 0 | 100 | Integer | R | 1 | X |
| U73 Def.StopTemp | 2703 | 0 | -2000 | 2000 | Float | R | 0.1 | |
| u57 Alarm air | 2578 | 0 | -2000 | 2000 | Float | R | 0.1 | |
| u86 Ther. band | 2607 | 1 | 1 | 2 | Integer | R | 0 | |
| u13 Night cond | 2533 | 0 | 0 | 1 | Boolean | R | 1 | |
| u90 Cutin temp. | 2612 | 0 | -2000 | 2000 | Float | R | 0.1 | |
| u91 Cutout temp. | 2513 | 0 | -2000 | 2000 | Float | R | 0.1 | |
| u21 Superheat | 2536 | 0 | -2000 | 2000 | Float | R | 0.1 | X |
| u22 SuperheatRef | 2535 | 0 | -2000 | 2000 | Float | R | 0.1 | X |
| Settings | ||||||||
| r12 Main switch | 117 | 0 | -1 | 1 | Integer | RW | 1 | |
| r00 Cutout | 100 | 20 | -500 | 500 | Float | RW | 0.1 | |
| r01 Differential | 101 | 20 | 1 | 200 | Float | RW | 0.1 | |
| — Def. Start | 1013 | 0 | 0 | 1 | Boolean | RW | 1 | |
| d02 Def . Stop temp | 1001 | 60 | 0 | 500 | Float | RW | 0.1 | |
| A03 Alarm delay | 10002 | 30 | 0 | 240 | Integer | RW | 1 | |
| A13 HighLim Air | 10019 | 80 | -500 | 500 | Float | RW | 0.1 | |
| A14 LowLim Air | 10020 | -300 | -500 | 500 | Float | RW | 0.1 | |
| r21 Cutout 2 | 131 | 2.0 | -60.0 | 50.0 | Float | RW | 1 | |
| r93 Diff Th2 | 210 | 2.0 | 0.1 | 20.0 | Float | RW | 1 | |
| Parameter | PNU | Value | Min. | Max. | Type | RW | Scale | A |
| d02 Def.StopTemp | 1001 | 6.0 | 0.0 | 50.0 | Float | RW | 1 | |
| d04 Max Def.time | 1003 | 45 | d24 | 360 | Integer | RW | 0 | |
| d28 DefStopTemp2 | 1046 | 6.0 | 0.0 | 50.0 | Float | RW | 1 | |
| d29 MaxDefTime2 | 1047 | 45 | d24 | 360 | Integer | RW | 0 | |
| Alarms | ||||||||
| — Contr. error | 20000 | 0 | 0 | 1 | Boolean | R | 1 | |
| — RTC error | 20001 | 0 | 0 | 1 | Boolean | R | 1 | |
| — Pe error | 20002 | 0 | 0 | 1 | Boolean | R | 1 | |
| — S2 error | 20003 | 0 | 0 | 1 | Boolean | R | 1 | |
| — S3 error | 20004 | 0 | 0 | 1 | Boolean | R | 1 | |
| — S4 error | 20005 | 0 | 0 | 1 | Boolean | R | 1 | |
| — S5 error | 20006 | 0 | 0 | 1 | Boolean | R | 1 | |
| — High t.alarm | 20007 | 0 | 0 | 1 | Boolean | R | 1 | |
| — Low t. alarm | 20008 | 0 | 0 | 1 | Boolean | R | 1 | |
| — Door alarm | 20009 | 0 | 0 | 1 | Boolean | R | 1 | |
| — Max HoldTime | 20010 | 0 | 0 | 1 | Boolean | R | 1 | |
| — No Rfg. sel. | 20011 | 0 | 0 | 1 | Boolean | R | 1 | |
| — DI1 alarm | 20012 | 0 | 0 | 1 | Boolean | R | 1 | |
| — DI2 alarm | 20013 | 0 | 0 | 1 | Boolean | R | 1 | |
| — Standby mode | 20014 | 0 | 0 | 1 | Boolean | R | 1 | |
| — Case clean | 20015 | 0 | 0 | 1 | Boolean | R | 1 | |
| — CO2 Alarm | 20016 | 0 | 0 | 1 | Boolean | R | 1 | |
| — Refg.Leak | 20017 | 0 | 0 | 1 | Boolean | R | 1 | |
| — Wrong IO cfg | 20018 | 0 | 0 | 1 | Boolean | R | 1 | |
| — Max Def.Time | 20019 | 0 | 0 | 1 | Boolean | R | 1 | |
Note: Parameters marked with “X” in the “A” (App mode column) is not present in all App modes (for further info see AK-CC55 User Guide).
More Info
- danfoss.com
- +45 7488 2222
FAQ
- Q: Can the communication settings be customized?
- A: Yes, the network address and communication settings can be customized using the AK-UI55 setting display and the AK-CC55 Connect service app.
- Q: Where can I find the full documentation for AK-CC55 controllers?
- A: You can find the full documentation, including user guides and installation guides, on the Danfoss website at the provided link.
Documents / Resources
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Danfoss AK-CC55 Compact Case Controllers [pdf] User Guide AK-CC55, AK-CC55 Compact Case Controllers, AK-CC55, Compact Case Controllers, Case Controllers |