Lon RS485 Screen Specifications The mounting location should be flat, dry and free of major vibra- Operating temperature: tions. The AK-SM 850 should be mounted at eye level. Screen: -10 to +55˚C (14 to 131˚F) Dimenstions: @ 90% RH (non condensing) Unit Width 295 mm (11.6”)
Small slotted screwdriver for connector screws Torx 8 screwdriver for releasing the electronic unit and for fastening the unit when recessed mounted Screwdriver for fixating the AK-SM 850 Pen for marking the 2 lower fixation holes Larger slotted screwdriver for releasing the Technician lid...
Page 7
Wall Mounting- Panel recessed From the front: A hole of the size 280 x 220mm is machined The AK-SM 850 is inserted in the hole From the backside: Slide the 3 fastener into the housing part The screws are inserted into the fasteners...
Connections The following chapter describes the available connections on your AK-SM 850. Please note that not all connection points are currently active, please refer to the drawing below for more details not currently not currently used used Modbus field Lon (RS485)
Page 12
Open FTP server ports to the public internet is not considered as a safe network practice. To avoid these issues, Danfoss strongly suggests FTP functionality in LAN network only . This would reduce the risk of open FTP ports and enhance network security.
The following section describes the current Web Wizards, used for simplifying initial settings and Refrigeration layout. The Web Wizards can be used in an offline or online configuration. Danfoss recommends using the AK-SM web environment for commission tasks. Establish a web connection to your AK-SM (if working online, enter the valid IP address of the AK-SM and apply the factory user name and password).
(AK-SM), with field bus I/O. De-centralized control is the the AK-SM web browser interface, but would equally apply if term used to describe the full support of Danfoss Pack and Case being done via the local screen. Further detailed commissioning controllers.
Page 19
OI (Output|Input) RO (Relay output) SI (Sensor Input) V02 (Variable output) Utility Meter (WattNode, Veris, Carlo Garvazzi) Generic (Danfoss case / pack controllers) AK-CM (AK- Communication Modules) Calculations Each node (type) has a column that reflects any configured or scanned status.
Page 21
Manual Operation (seen under Service tab in device detail page) Refrigeration: Allow user to perform the following operations on Danfoss case controllers ; Main Switch, Defrost, Cleaning, Lights, Night Setback, Shutdown HVAC: Allow user to perform the following operations to Relay, Inputs &...
Page 22
The Alarms screen has a sub set of screen [Connections, Service, Alarm Routing, Relays, System, I/O Comm]. Go through each sub tab to ensure all areas are correctly configured as per site requirements. Define the number of AK-SM system The AK-SM utilizes an If Controllers (Danfoss Evap & connections (typically based alarm Alarm Action Matrix that Pack, Power meters) and, I/O...
Page 28
I/O Comm tab If Controllers (Danfoss Evap & Pack, Power meters) and, I/O has been used in the control configuration (Lighting, HVAC, Refrigera- tion etc.), these devices can be seen under the I/O Comm tab. The I/O Comm tab allows any offline communication alarms to be configured.
Page 29
Please also note that the SM provides the ability to configure centralized or de-centralized control. Centralized control is where your SM has the control logic built in and uses Danfoss I/O to provide refrigeration control. De-centralized is the control method via the use of Danfoss Pack and case controllers...
Service Tool Support Your AK-SM supports the Danfoss Service Tool (version 3.23 and higher). The Service Tool (CT) must be connected via an IP interface. Once an connection is established the ST will show the AK-SM and all AK2 platform devices. Note that non AK2 platform based devices will not show up in the ST device list.
1 - Use a Night Setback Schedule (Configuration->Refrigeration->Rail Heat) Many Danfoss controls have a function whereby the output to the rail heat elements can be pulsed in a percentage of time ratio. If set in the controller, the night setback signal from the AK-SM will allow the controller to vary the output depending on the time period.
Page 38
The following section highlights how to configure active rail heat via the Danfoss AK-CC550 evaporator controller (which has the ability to utilize calculated dew point over the communications bus). Select ‘Yes’ to the question line ‘Use Adaptive Rail heat’ , and (in this example) select ‘Calculated Dewpoint’...
In the area between the two dew point values the controller will manage the power to the rail heat Schedules used in combination with Danfoss controllers) Configuration->Control->Refrigeration->Schedules Under the schedules section multiple schedules can be added and configured according to your needs.
The Po Optimize function uses a calculation on all controllers to data is collected that tells the system which refrigeration determine a “Load Factor”. This has been developed by Danfoss appliances are most heavily loaded. This energy saving function and is available in your AK-SM. By use of the Load Factor the Most can make substantial savings directly whilst also saving on Loaded Case (MLC) is constantly updated.
Configuration -> Control -> MISC The term Miscellaneous refers to the ability to monitor and control miscellaneous areas of an application using Danfoss AK I/O (modules). For example, a miscellaneous relay output may be required for an exhaust fan, a dispenser that adds chemicals, an oven, a produce fogger, or any other device that can’t or...
Page 49
AK-XM 103A Variable Output board Your AK-SM fully supports the family of Danfoss I/O modules. The I/O family consists of various analog inputs, digital outputs, and relays. New to the I/O family is the AK-XM 103A (080Z0032) analog input /output module. This new module offers x4 analog inputs and x4 analog outputs, allowing easy control of a variety of control applications.
Lighting Configuration Configuration -> Control -> LIGHT Your AK-SM has the built in ability to support lighting scheules and control via Danfoss I/O modules or via lighting panel communications. Typically the built in lighting control function is used to manage general store lighting applications.
Detailed configuration is done under the Energy tab (Configura- The Danfoss approved power meters can be seen when selecting tion->Control->Energy) meter type under the control question in Configuration->Control page and are described in the example below.
Modbus channel if 9600- consult the meter manual for specific information on how to an existing network of Danfoss EKC modbus devices is estab- set the network address & baud rate. The data format is 1 start bit, lished.
Page 60
Configuration -> Control -> ENERGY [Danfoss Supported Power meter] This example highlights a Danfoss supported meter WattNode + Modbus. Having already defined the power meter as ‘WN Plus/ MB’ under the control page, navigate to the Configuration- >Control->Energy page. Under type, select WattNode MB (Modbus).
Now the AK-SM has been set for load shed, with the appropriate levels set, the enterprise user can now schedule load shed jobs. Once logged in to the Danfoss enterprise dashboard the user can select multiple sites and select a time and duration, with a load shed level action.
A pop up window asks the user to select a file format, the following formats are possible; .hst (Danfoss history file format) .csv (Excel compatible spreadsheet) Saving any collected history as a file allows for future loading and view, use the ‘Load history from file’...
In addition, the FAI contains the is installed (FAI). If you intend to perform remote software updates, Danfoss recom- MAI, which also contains all relevant web and EDF files. Via the mends the loading of the FAI file.
Page 71
CPU Reset button (Press and hold for 5 seconds) Located inside USB access door Firmware Danfoss recommends using the Master Application Image software (MAI), as it contains all relevent files for correct operation (Firmware, Web and EDF). The following steps describe how to update whilst in normal operation mode.
Central page of AK-SM that displays all configured control points Site View Custom graphic page with mapped system parameters AK I/O: Danfoss AK Input / Output modules Bd-Pt: Board & Point address location Alarm Levels: Disabled = no alarm action...
Page 74
ADAP-KOOL® Refrigeration Control Systems is a trademark of Danfoss A/S, www.danfoss.com Danfoss can accept no responsibility for possible errors in catalogs, brochures, or other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that alterations can be made without subsequent changes being necessary in specifications already agreed.
Need help?
Do you have a question about the AK-SM 850 and is the answer not in the manual?
Questions and answers