Danfoss AK-SM 800 User guide

Download

User Guide

AK-System Manager

AK-SM 800 Series

ADAP-KOOL® Refrigeration Control System

www.danfoss.com

User Guide | AK-System Manager, AK-SM 800 Series

Contents

Chapter 1: Product Introduction

Product Introduction ....................................................................................... 3

Speciﬁcations ..................................................................................................... 4

Chapter 2: Installation and start-up conﬁguration

Installation ........................................................................................................... 5

Connections ........................................................................................................ 7

Network topology ............................................................................................ 7

Lon RS485 Topology .............................................................................. 8

MODBUS topology ................................................................................. 9

First time startup ............................................................................................. 10

AK-SM 800 Host Network Conﬁguration ................................................ 10

Connecting to AK-SM 810 ............................................................................ 12

Initial Conﬁguration - language.................................................................13

Remote Management Tool (RMT) ............................................................. 14

System Upload / Download ........................................................................ 15

Device Management

(Conﬁguration/System/Device Management) ..................................... 16

IP Conﬁguration and suggested security settings ............................. 17

Chapter 3: Navigation and use

General navigation, operation and use (via web) ............................... 19

Connecting to your AK-SM .......................................................................... 19

Dashboard view ...............................................................................................19

File.........................................................................................................................20

Auto History Log Collection ........................................................................23

Auto Alarm Log Collection .......................................................................... 24

Managing alarms .............................................................................................25

Device detail .....................................................................................................26

System view ......................................................................................................27

Schedule view .................................................................................................. 28

History (Logs) ....................................................................................................29

Collecting and viewing history .................................................................. 30

Chapter 4: Conﬁguration

Initial Conﬁguration - Web Wizard ........................................................... 32

Copy Wizard ......................................................................................................35

Network Nodes ................................................................................................36

System conﬁguration (Time settings / preferences) ..........................37

Communication ...............................................................................................40

Alarms..................................................................................................................40

Control tab .........................................................................................................47

Chapter 5: Master Control Functions

Rail Heat ..............................................................................................................53

Schedules ........................................................................................................... 56

Customized control ........................................................................................ 59

Suction Pressure Optimization .................................................................. 60

Adaptive Liquid Management ...................................................................62

AKC ON (Evap shutdown when injection oﬀ) ......................................63

Coordinated Adaptive Defrost ..................................................................64

Chapter 6: Advanced features and conﬁgurations

Managers Override .........................................................................................65

Light .....................................................................................................................66

Lighting Conﬁguration .................................................................................66

Dimming control via AK I/O ........................................................................69

HVAC Conﬁguration .......................................................................................71

Miscellaneous Conﬁguration ......................................................................74

Energy .................................................................................................................87

Energy Conﬁguration ....................................................................................87

Energy Measurement / Load shed ............................................................ 91

Detail  Energy ...............................................................................................93

Enterprise Load Shed (via Danfoss EDS Service) .................................94

Demand Limiting ............................................................................................95

Boolean Logic / Calculations ......................................................................96

Chapter 7: Device support

Danfoss AKC Support (Via AK-PI 200) ......................................................98

Service Tool Support....................................................................................102

CoreSense™ (MODBUS) Support ............................................................ 103

AK-SM 800 Device support guidelines ................................................. 104

Chapter 8: Miscellaneous

Recommended method for upgrading your

AK-SM 800 series front end ...................................................................... 105

Ordering .......................................................................................................... 108

Document History ....................................................................................... 108

Glossary of terms .......................................................................................... 109

2 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Chapter 1: Product Introduction

Product Introduction

Your Application

The Danfoss AK-System Manager (AK-SM) is a modern solution for the food retail markets. The AK-SM uses the latest technology to provide the maximum beneﬁt to the end user, both in terms of energy saving optimization, control options and user friendly access. Designed speciﬁcally with the food retail applications in mind, the AK-SM provides all the functionality and tools to provide full application ‘coverage’, for the Refrigeration control and monitoring application.

The Danfoss AK-SM represents the most ﬂexible answer to today’s demands & balances cost eﬀective control, continuous energy optimization and long term ﬂexibility via miscellaneous inputs and boolean logic commands, all built in to one easy to use front end controller.

Modern Technology at work for you

Modern tools like the built-in USB ﬂash drive port allows for easy ﬁrmware updating & saving of the database. All part of the AK-SM package is the Remote Management Tool, a simple yet powerful application that allows remote updates, software management and the saving of databases on the AK-SM. Full remote access is powered by the AK-SM built in web server, providing you with an advanced web browser environment in which to control, view & monitor all your important assets.

AK-SM Headline Features

*License dependent

Refrigeration Control (centralized and de-centralized methods)

Energy saving technology (built in) Master control, Suction optimization, scheduling, enterprise load shed

Schedules Groups Central Defrost, Case lighting, Store / Outside Lighting, Night setback, Shutdown

Flexible Alarm Routing / Output e-mail, IP address, relay

Built in MODBUS, LonWorks® network More scope for control solutions - Established protocols

Full color VGA Local screen view & access Access all areas of your system from easy to use local screen

Built in Buzzer & 2-tone LED Easy local level alarm notiﬁcation

Support for Danfoss AK I/O modules I/O module support oﬀering extended and ﬂexible control, monitoring

Local screen custom graphics Create simple & clear graphic screen with only ‘key parameters’ shown - simply the

Consolidated store view Show a consolidated web view of your store, not just individual AK-SM controllers. View

600 History points Large history storage capacity to ensure HACCP compliance & service level detail

Web browser custom graphics Create custom web graphics that present in the AK-SM web screens. Map any datapoint

Multiple users / user levels Deﬁnable user list with clear authorization levels

Multiple language support Local & Browser language support

USB ﬂash drive support (load,save and update software) Reduce commissioning time & Cost

Full web browser access Standard web browser connection provides access to all areas of the system

Built in Boolean Logic commands Create your own logic to control even the most obscure application

Remote Management Tool Remotely manage your system - Update software, save database, controller ﬁle

Service Tool support Gain access to Danfoss AK2 based controls via Service Tool tunneling

Control and monitor your Refrigeration application via centralized (Rack) or de-centralized (Case/Pack) dependent on your control needs.

management of your services. Max.5 BMP’s max. 100 log points each

all data from all interconnected AK-SM devices in common web browser pages

from any AK-SM controller and vizualize in the web.

Max.5 JPG’s max. 200 log points each

management, load images, allowing custom image & mapping of parameters

Beneﬁts

HVAC Control AK SM 820 and AK-SM 880 oﬀer HVAC support

Lighting Control All systems support Lighting Control

User Guide | AK-System Manager, AK-SM 800 Series

Speciﬁcations

The mounting location should be ﬂat, dry and free of major vibrations. The AK-SM 800 should be mounted at eye level.

Environmental Range:

Operating temperature:

-10 – 55˚C (14 – 131˚F) @ 90% RH (non condensing)

IP20

Electrical range:

~ 100 – 240 V AC 50/60 Hz, 12 W Built in alarm relay, Contact voltage: Up to 240 V, Load: AC-1 (Ohmic) Current rating. 5 Amp AC-15(inductive) Current rating. 3 Amp

LCD

Active TFT colours (thin-ﬁlm transistor), SVGA 800 x 600

Size

Unit Width 295 mm (11.6”), Unit Height 235 mm (9.3”), Unit Depth 65 mm (2.5”) Mounting holes 246 mm (9.7”) Width Mounting holes 175 mm (6.9”) Height

Approvals:

Declaration of conformity info

- Regulation 2005/37/EC

- EN 12830, 07-1999

- EN 13485, 11-2001

- HACCP 080R1215

- CE 080R1213

- C-Tick 080R1214

- UL E31024

WARNING: To avoid risk of injury from electric shock, ensure correct electrical isolation is made before working within the enclosure.

USB Access door Active USB Flash drive (use for load/save database and AK-SM software) User Authorization required’

Not currently Used

4 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Chapter 2: Installation and start-up conﬁguration

Installation

Tools needed

1. Bubble level

2. Small slotted screwdriver for connector screws

3. Torx 8 screwdriver for releasing the electronic unit and for fastening the unit when recessed mounted

4. Screwdriver for ﬁxating the AK-SM 800

5. Pen for marking the 2 lower ﬁxation holes

6. Larger slotted screwdriver for releasing the Technician lid

Wall Mounting- box

1. Attach screw to the wall

2. Mount AK-SM 800 to the screw

3. Loosen Technician lid (three sides)

4. Remove Technician lid

5. Level the AK-SM 800

6. If drilling is necessary, mark up 2 screws in Connector part.

7. Attach the Connector part to the wall using another 2 screws

Wall Mounting- wiring

Insert cables through the rubber grommets

Strip the cables Strip the wires

Secure wires in

Strain relief the cables

connectors by screwdriver

 For installation in countries where UL Listing is required, please refer to the installation instruction provided with the product.

User Guide | AK-System Manager, AK-SM 800 Series

Carefully replace the keypad, ensure that it securely snaps into place

From the backside: Slide the 3 fastener into the housing part The screws are inserted into the fasteners Secure the unit by tightening the screws

Wall Mounting- Panel recessed

From the front: A hole of the size 280 x 220mm is machined The AK-SM 800 is inserted in the hole

Remove Technician lid From the back, push cables inside the housing

Insert the plastic divider to separate and make sure ﬁrmly snaps into place. The plastic insert is provided in the accessory bag and is required for panel mounting the unit where UL Listing is required.

6 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Connections

The following chapter describes the available connections on your AK-SM 800.

Please note that not all connection points are currently

active, please refer to the drawing below for more details

not cu rrently

used

Power Supply Alarm relay

(used to place unit in

Boot switch

boot loader mode)

RJ 45 LAN, Use shielded Ethernet cable

Network topology

Your AK-SM supports both MODBUS and Lon RS485 local bus connections. For further detailed description of network connections please refer to document ‘Data Communication

between ADAP-KOOL® Refrigeration controllers_RC8AC802’ Lon RS485

Follow standard topology guidelines for Lon RS485, with particular respect to maximum cable length, when to use a repeater and ensuring suitable resistors are in place.

Cable type Cables twisted in pairs must be used, and they may be provided with a screen. Some types of communication require a cable with a screen to be used.

Examples:

For Lon RS485, MODBUS, RS485 Third party - General ‘EIA 485’ recommendation:

- Belden 9841, 24 AWG, 1 pair with screen

- Belden 3107A, 22 AWG, 2 pairs with screen

- Smartwire 043006AL, 22 AWG, 1 pair with screen

- Alpha wire 6453, 22 AWG, 1 pair with screen

- Carol C4841A, 24 AWG, 1 pair with screen

- Dätwyler Uninet 3002 4P 4 pairs with screen(CAT5 cable)

For Lon TP78 communication - Level 4 cable general recommendation:

- Belden 7703NH, 22 AWG, 1 pair with screen

- Belden 7704NH, 22 AWG, 2 pair with screen

- Smartwire 106500, 22 AWG, 1 pair with screen

Wires with larger cross-section than AWG 22 is not recommended. ( Eg. AWG 20 and 19).

not currently used

MODBUS ﬁeld bus

Address switch (used when conﬁguring multiple SM units

When using the Lon RS485 network, ensure the Term. Switch

on the AK-SM is in the ‘ON’ position (enable internal resistor). Any repeaters must also have 120 Ohm resistor in place. Finally, ensure that the last controller on the network run also has its end of line on line resistor enabled.

Lon (RS485) ﬁeld bus

User Guide | AK-System Manager, AK-SM 800 Series

Cable length A cable length must not exceed 1200 m (4000 foot). A repeater (Part # 084B2241 ) must be used for longer lengths.

Lon RS485 Topology

The cable connection must be connected from controller to controller, and no branches are allowed on the cable. If the cable length exceeds 1200 m a repeater must be inserted. If the data communication cable runs through an electrically noisy environment which impairs the data signal, one or more repeaters must be added to stabilise the signal.

When conﬁguring Lon devices on the control bus, the

highest device address that can be can be used is 127 (max. 120 controller in total)

Remember to use 120 Ohm terminators on the last ﬁled bus controller device. Note also to enable (ON) the Term. Switch, located above each network connection point on the AK-SM 800, this will enable the built in terminator(s) for each network point on the AK-SM 800.

Conductors

The two wires are looped from device to device. There are no polarisation requirements. (On some controllers, the clamps are designated A and B. On others there is no designation. Otherwise the connections are identical.) If a screen is used, it must be connected to the system device and any repeaters. A screen must always be looped from device to device.

The screen must not be connected to anything else. (The screen is earthed inside the screen and must not be earthed in any other way.)

R=12 0 ohm

AK-SM

R=12 0 ohm

AK-SM

Mid network connection

This example shows the AK-SM 800 series RS485 version used in the middle of a network run. In this example ensure that both ends of the controller run are ﬁtted with 120 Ohm terminators.

Over the past several years Danfoss has oﬀered a version of the AK-SC 255 and AK-SC 355 which has a LonWorks® option of TP78. As a physical layer of the LonWorks® protocol these older systems oﬀered x5 network connection points. Due to the global phase out of the TP78 option by the OEM, Danfoss has made available a special order version of the AK-SM 880 (080Z4009), which will come pre-installed with a LonWorks® TP78 options card. This ‘special’ version of the AK-SM 880 is designed to support customers who wish to migrate from existing AK-SC 255 and AK-SC 355 TP78 systems. Please note that this version of the AK-SM 880 is not intended or available in Europe’ , and oﬀers x4 TP 78 connection points.

R=12 0 ohm

TP 78-Version

RS 485

R=12 0 ohm

AK-SM

8 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

MODBUS topology

The cable must be with screen. The cable is connected from controller to controller, and no branches are allowed on the cable. If the cable length exceeds 1200 m a repeater must be inserted. If the data communication cable runs through an electrically noisy environment which impairs the data signal, one or more repeaters must be added to stabilise the signal.

‘The System Manager can be inserted in middle of network, ensure System Manager termination is OFF. Refer to Danfoss document ‘RC8AC802 Data Communication’.

When conﬁguring MODBUS devices on the control bus, the

highest device address that can be used is 199 (max. 120 controller in total)

The wires are looped from device to device. A is connected to A B is connected to B. The screen must be connected to the system device, all controller and any repeaters. A screen must always be looped from device to device. The screen must not be connected to anything else.

AK-SM

MODBUS

R=12 0 ohm

MODBUS

R=12 0 ohm

AK-SM

Be sure to conﬁgure the MODBUS repeater AKA 222 (code#084B2240) to the correct baud rate.

See notes section at the back of this guide for MODBUS device baud rate properties.

Refer to Danfoss Instructions RI8KN402 for further details on the AKA 222 repeater’

User Guide | AK-System Manager, AK-SM 800 Series

First time startup

A new feature in 08.045 is initiated when installing and powering up your AK-SM 800 series for the ﬁrst time, a wizard style guide will appear on the local screen. The idea of this initial settings wizard is to allow the Commissioning user to conﬁgure the basic parameters required for setup. Note that once a AK-SM 800 series database ﬁeld has been set, the initial settings wizard will no longer be displayed, the work-ﬂow is only designed to run once on new systems.

The following screens will be presented in the initial settings wizard;

LANGUAGE (this selection will also set the system units of measurement)

DATE/TIME PREFERENCES USERS/PASSWORDS COMM

After completion of the settings wizard the AK-SM 800 Series will request a reset, where settings will saved. Commissioning activities can now continue using Web wizards and control screens

AK-SM 800 Host Network Conﬁguration

The following section describes how to conﬁgure your AK-SM 800 to facilitate a host network. The AK-SM 800 host network can support up to a max of 10 interconnected AK-SM800 units. The practice of interconnecting on a host network allows for support of larger applications or to separate discrete control applications onto dedicated AK-SM 800 units. For example HVAC and Refrigeration control could be done via dedicated AK-SM 800 units. The host network requires an IP Ethernet connection to each AK-SM 800 unit. Once conﬁgured all AK-SM 800 units can be viewed in a consolidated format via a web browser of via the StoreView Desktop. Note that the consolidation view is only available via the browser or StoreView desktop, not local screens.

Master device conﬁguration

Make sure you have suitable ﬁxed IP or DHCP addresses for each of your AK-SM 800 units you wish to deploy on the host network. Also ensure all Ethernet cables are connected.

Make sure the rotary address switch (located behind keypad) is set to 0. Zero deﬁnes your AK-SM 800 as the master node on the host network.

Navigate to the Conﬁguration/Comm screen and check your unit has a valid Master IP address. Set the ‘Host Network’ question to Enabled. Enter the number of System Manager units you intend to have on the host network.

After all changes are complete reset the master AK-SM 800 unit

10 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Slave device conﬁguration

Make sure the rotary address switch (located behind keypad) is set to the appropriate number. For example, setting the switch to 1, will deﬁne the unit as a slave device address 1. All units in the host network must have unique host network addresses (address 0 is always master).

Once you have set the rotary address switch, reset the unit and allow the AK-SM 800 to boot up. Navigate to the Conﬁguration/ Comm screen and check your unit shows the Master IP address. Set the ‘Host Network’ question to Enabled. Enter the number of System Manager units you intend to have on the host network (matching what you have already set in the master unit)

Make sure the slave unit has a valid IP address.

To validate the host network has been correctly conﬁgured and all System Managers can see each other refer to the Master unit ‘info’ screen. Here you should see all AK-SM 800 on the host network

User Guide | AK-System Manager, AK-SM 800 Series

Connecting to AK-SM 810

This section describes the steps in making an initial connection to the (screen-less) AK-SM 810 product. Once initial connectivity has been established, the system can be conﬁgured using standard workﬂows, as all menus, features and functions are identical to the AK-SM 820.

1. Set the rotary address switch to position 9 and power up unit. By setting address 9 the SM810 will be set to a ﬁxed IP address of 192 .168.1.161

2. Connect to the AK-SM810 via a suitable Ethernet cable to your PC, which should be running either RMT or StoreView Desktop

3. Using the address 192.168.1.161 connect to the AK-SM 810, log in using either factory set User Name and Password (Supervisor \ 12345) or what has previously been deﬁned

4. After system conﬁguration has been completed, it is recommended to apply a known ﬁxed IP address in the Conﬁguration > Comm screen. By adding a ﬁxed IP address it will ensure subsequent connections can repeatedly be performed without issue.

5. Power Oﬀ the AK-SM 810

6. Set rotary switch to 0 (is used as Master), else set to desired slave address

7. Power unit up and validate connection by using static IP address used in the Comm screen

8. Make sure that the web port is not changed to port 1041.

Doing so will render the unit unaccessible! Port 1041 is reserved for AK-ST 500 service tunnelling and does

not provide access to the web interface.

12 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Initial Conﬁguration - language

The following section describes the recommended actions to get your AK-SM up and running.

Escape

Home

(System View)

Back Shift

Previous Next

Page Up Page Down

Menu Navigation

The following section describes the recommended actions to get your AK-SM up and running.

Local keypad - button layout

Setting language for local SM display

Your AK-SM can display several diﬀerent languages. The factory default the unit will display English, in addition your required language can also be enabled. Follow the simple

Alarms Conﬁguration

Numeric keypad

Note: The AK-SM 800 supports standard USB keyboards. This may oﬀer a more convenient method of text input whilst in the commissioning phase. Use the USB socket (located behind the front panel lid).

Steps below to display your preferred language in the local screen;

1. Press the Conﬁguration button, and if required enter the factory default user name and password (Supervisor, 12345)

2. It is strongly recommended to always change the default password. Failing to do so poses a sever security risk also on protected networks

3. Using the arrow keys, navigate to the ‘System’ menu.

4. Using the down arrow, navigate to the Language line and select your required language

5. Select your language for ‘Display’. The unit will then request a reset.

Select language Display language

User Guide | AK-System Manager, AK-SM 800 Series

Remote Management Tool (RMT)

The Remote Management Tool (RMT) is a PC software application tool that is designed to support the AK-SM, both in commissioning and service. The RMT is a powerful tool that allows full oﬄine programming and simulation of AK-SM databases, providing the opportunity to save considerable on site commissioning times. In addition, the RMT tool has various remote management features, facilitating complete system management. Creating custom images for the AK-SM web browser is also another function of the RMT tool. The following features can be seen in the RMT;

• Oﬄine web Programming

Launch oﬄine web simulator(s) to allow full oﬄine AK-SM database programming, with controller simulation you can fully pre-program your application and save the resulting database to USB for on site install.

• Program simulation

From within the web browser session simulate board and point variables to test calculations and system behaviour

• Custom Graphics

Use your own Jpeg or bitmp ﬁle to create custom images, mapped with any conﬁgured system datapoint

• File Transfer

FTP is not available from ﬁrmware v08.080 and later. Remotely connect, load and access system ﬁles (html web & EDF device ﬁles) Retrieve datapoints

• Address Book Save your most commonly connected site details to allow for one click connection

• Tools

Download System software, backup (save) & load database ﬁles.

• Language

Compatible in multi- languages

The RMT tool is available from your Danfoss sales oﬃce with associated supporting documentation.

14 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

System Upload / Download

When to use Upload / Download function.

Your AK-SM 800 oﬀers both Online and Oﬄine conﬁguration methods. Understanding the concept of these diﬀerence methods will help in determining the use of the Upload or Download feature.

Upload = Retrieve ﬁeld bus controller device settings and sync with AK-SM 800 database

Download= Send controller device settings held in the SM800 to the ﬁeld bus controller

Online Conﬁguration:

Online conﬁguration is where the site application has live control devices (i.e. Danfoss AK-CC 550) connected to a ﬁeld bus and the SM800 will be used to conﬁgure the settings and conﬁguration of these control devices. Since the AK-SM 800 has the ability to oﬀer online and oﬄine programming it is important to sync the AK-SM 800 database BEFORE attempting any online conﬁguration or setpoint changes. The UPLOAD function is used to ‘retrieve’ the control device settings and update the SM800 database. Once the upload is performed and completed any subsequent device setpoint changes done via the SM800 will get immediately sent to the ﬁeld device (no need to perform upload/download)

Upload Example: A contractor arrives on site and connects the control devices to the ﬁeld bus. The contractor performs a network scan to ensure all nodes on the network are present. After the network scan the contractor performs an upload function, which will sync the AK-SM 800 database with the settings that exist in the ﬁeld bus control devices. The upload will take the settings from the control devices and sync to the SM800 database. Once the upload is complete the contractor can continue to conﬁgure via the AK-SM 800 and change settings in the control devices.

Oﬄine Conﬁguration: With the use of the RMT tool, a comprehensive AK-SM 800 oﬄine conﬁguration can be accomplished without even being connected to any control device or AK-SM 800. For many customers and users this represents a considerable time saving in the conﬁguration phase (assuming the site deﬁnition is known).

By selecting the appropriate AK-SM 800 simulator in the RMT tool you can simulate (in an oﬄine state) a AK-SM 800 installation,

complete with control device selections (known as EDF selections). The EDF device selections come pre-set with factory parameter settings. Once your application has been deﬁned and any EDF setting changes made, the simulator (including all EDF’s) can be saved in a AK-SM 800 database format. This saved AK-SM 800 database ﬁle can then be later loaded to a live AK-SM 800 on site and all the control device settings (contained in the EDF ﬁles) can be ‘pushed down’ to the relevant connected live control devices to conﬁgure them. [Note that for some Danfoss controls the Main Switch is required to be in the oﬀ mode before settings can be written].

To ensure the original ‘oﬄine’ AK-SM 800 database (which holds all the control EDF device settings) is in sync with the live control devices the ‘DOWNLOAD’ function is required. It is critical that the AK-SM 800 is in sync with the live control devices since the parameters in the SM800 database could be diﬀerent to the parameters residing in the live control device(s). Use the Download function when you have performed an oﬄine conﬁguration of your application.

Download Example: A contractor opens the RMT tool and decides to fully conﬁgure the AK-SM 800 which will be used in a supermarket in the following week. He knows how many and what type of devices will be on site and decides to deploy the RMT tool to oﬄine program the AK-SM 800 database. After selecting the device type(s), via the EDF selections the contractor decides to conﬁgure some key parameters per the customer application. Finally the AK-SM 800 database is saved to USB and the following week the contractor arrives on site. The AK-SM 800 on site is connected to all the control devices via the ﬁled bus and a network scan is performed to check ﬁeld communications is valid. The contractor loads the AK-SM 800 database and performs a DOWNLOAD function to ensure that the settings made oﬄine now get sent to the devices on the ﬁeld bus.

The Upload and Download function can be found under Conﬁguration>Network Nodes.

Note: Due to ﬁeld bus speeds, quantity of data sets and devices the Upload or Download function can take several minutes. On sites with a large number of devices Danfoss recommends selecting 30 to 40 devices at a time and repeating the procedure.

User Guide | AK-System Manager, AK-SM 800 Series

Device Management (Conﬁguration/System/Device Management)

The purpose of the Device Management feature is to control the amount of active device ﬁles at any given time (max 1000), thus saving system RAM and improving system performance.

The updated ﬁle management screen are eﬀective with AK-SM 800 software version 8.021.

By default the most common controller types are set to ‘Enabled’. Groups which are not enabled (Disabled) are not actively loaded into system RAM. To enable any controller group simply double click the group and from the action menu select ‘Enabled’.

As device ﬁles are Enabled / Disabled the ﬁle counter will reﬂect the total number of active device ﬁles. The term ‘Files’ in this case, is actually the total number of device selections available. For example, a controller such as an AK-CC 550 has 10 diﬀerent applications. Therefore each application is a ‘selection’. Then the number of selections is multiplied over several software versions that may be available for that device.

The maximum number of active selections per front end will now be 1000

This means that once the controller selection reaches 1000, you will need to disable groups of those devices not being used, in order to keep this number at, or below 1000. A message will be presented to alert if the capacity has been reached.

Using the network scan or Refrigeration layout/scan wizard will automatically enable any group is detected on a scan (even if the device ﬁle was previously set to ‘disabled’).

EDF’s not packaged within the ‘MAI’ ﬁle for the AK-SM 800 will be available via the Danfoss Support web site http://www.ak-sm800. danfoss.com. When installing the latest AK-SM 800 ﬁrmware package, recently released / new EDF device ﬁles may not be included.

The ‘Interim ED3’ collection of ﬁles are the ones which were not included in the MAI (master application install), and can also include either new ﬁles or updates of existing ﬁles after the software release date.

In this situation, there are two recommended methods to update your AK-SM 800 system.

Note: Only version 08.07x and above supports device ﬁles that have an extension of .ed4

Option 1 – Local screen - USB ﬂash drive

a) Download latest EDF zip ﬁle from the AK-SM 800 support site

b) Review the enclosed ‘ReadMe’ document to see what’s

included in this ﬁle collection

c) Copy the relevant ﬁle into the root directory of a USB ﬂash drive.

Note, only 1 ﬁle can be loaded at a time

d) Log in as Supervisor at the AK-SM 800

e) Insert USB ﬂash drive and follow menu prompt to install the

required ‘ED3/4’ and Device.ls3 ﬁles (only one at a time). Note that the Ephrases.tbl ﬁle is not currently set up to be loaded via USB. – see the RMT section below.

Make sure to always disable all device groups that are not in use. When performing a re-scan, device groups are activated automatically if any devices within the groups are detected. Exceeding the max number of active devices may result in unexpected list behavior.

16 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

IP Conﬁguration and suggested security settings

The ConﬁgurationComm screen allows important routing and IP conﬁguration to be set. With correct settings you will be able to remotely connect to your AK-SM 800 series controller. Note that after making any changes in this screen a system re-set is required to save settings.

Use DNS (Yes/No)

Domain Name System- select to YES to enable this feature and take advantage of your networks naming service. When answering YES (and with DHCP set to NO), the preferred host name line appears together with Domain Server IP address. There are two lines for the domain server IP or DNS name. Note that if DHCP is set to yes, the domain server IP address lines are not visible.

Use DHCP (Yes/No)

Dynamic Host Conﬁguration Protocol (DHCP) is a standard network protocol that dynamically distributes network conﬁguration parameters, such as IP addresses. If you connect the AK-SM 800 controller to a valid DHCP server the controller will obtain an address automatically. The management (renewal, binding and lease) of the IP address is fully automatic. It is strongly recommended that DNS is used in conjunction with DHCP so to keep track of dynamic addressing.

Use IP address as backup if DHCP fails (Yes/No)

If a non-reliable DHCP service is suspected, you can insert a ﬁxed IP address that will be used in the event of a DHCP failure. Under normal network conditions this feature would not normally be required.

Master IP address

Your AK-SM 800 series controller is a so called ‘master’ when the rotary address switch (located behind keyboard cover) is set to 0. This automatically assigns the unit as a master and is used when operating with multiple AK-SM 800 units (host network)

Preferred Hostname

If DNS is set to YES then a preferred hostname line appears. Selecting YES to the preferred hostname will enable Master node name line (see below). If DNS is set to No, the site name and unit name (site name-unit name) will be used by default.

Note: Site Name and Unit name should be conﬁgured under the ConﬁgurationSystem screen.

Master node name

Enter a name here, used to identify the AK-SM 800 controller on the router.

Host Network (Enabled / Disabled)

If your AK-SM 800 will be part of an interconnected host network of AK-SM 800 units, select ‘Enabled’ to this question. If there is only 1 AK-SM 800 controller then leave set as Disabled.

SM800 on network (1-10) – enter how many units will be on host network

Node to be used as (Master / Slave) – Select ‘Slave’ for all units with rotary address switch set to 1 or above

No of external Internet (1-3)

If your AK-SM 800 series controller will be made accessible from an external location (outside of LAN/Internet), then this feature needs to be enabled with at least 1 external internet ID. Once at least 1 external internet line is added the type (see below) can be entered. The use of the external internet conﬁguration is to ensure remote web browsers or Store View Desktop can access your AK-SM 800 from outside of the local area network.

Type (IP/ Name) – This is a new feature added in software version V08_027 and higher. Select IP for static addressing or Name if using DHCP

Internet IP / Name address – Enter IP or Name (based on above selection)

Web server port (user conﬁgurable)

Used to allow HTTP traﬃc / support browser access to your AK-SM 800 controller. Danfoss strongly recommends changing the

factory default to something other than port 80 if used outside of LAN network or exposing to the Internet. For example, change web server port to 5080. From ﬁrmware G08.080 FTP access is removed and not available for security reasons.

IP Port Use Notes

80 web browser This port is user conﬁgurable but factory set to 80

20 & 21 RMT tool (from version 4.15 HTTP transfer is supported) This port is user conﬁgurable only in ﬁrmware prior to G08.080

25 E-mail E-mail output

3001 XML Used for XML communications

1041 Service tool (ST500 ver. 3.29d and higher) used for tunneling through SM800 series to AK2 controller

User Guide | AK-System Manager, AK-SM 800 Series

FTP Server port (user conﬁgurable)

The AK-SM 800 series controller uses ‘Active’ FTP. Used to transfer database and EDF ﬁles. Danfoss strongly recommends changing

the factory default to something other than port 21

FTP Data port (user conﬁgurable)

The port used to support ﬁle transfer

Network timing support (NTP)

Use this function (if supported by your network) to sync the AK-SM 800 real time clock over the network, known as NTP. Requires NTP sever address and Time Zone oﬀset to be programed.

Note: Time Zone oﬀset can be conﬁgured under the ConﬁgurationTime screen

General IT security / Recommendations

The AK-SM 800 series device is an embedded controller designed to be installed behind an appropriate router and ﬁrewall. The AK-SM 800 itself does not oﬀer routing or ﬁrewall options, additional security steps must be taken to secure appropriate levels of security dependent on the application needs.

Danfoss recommends changing the default user name and password, used to log into the AK-SM 800 series controller.

Danfoss recommends changing the default web server port if used outside of secure LAN network.

Ensure the AK-SM 800 is behind a well conﬁgured ﬁrewall(i.e. port forwarding rules, FTP access (FTP is disabled from ﬁrmware version G08.080.054), HTTP access). A well conﬁgured router/ ﬁrewall will help in;

Firewall between our controllers and the Internet

The ability to designate the ports/protocols allowed to our controllers

The ability to limit and monitor in-store IP connections to our controllers.

The AK-SM 800 controller supports auto negotiated 10/100 Ethernet speeds.

The AK-SM 800 controller supports auto negotiated full / half duplex Ethernet communications.

From ﬁrmware G08.080 FTP access is removed and not available for security reasons.

18 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Chapter 3: Navigation and use

General navigation, operation and use (via web)

Once your AK-SM has been conﬁgured, general navigation and daily use is done via the Dashboard screen. The Dashboard screen acts as the central system home page, where further system details can be reached. The Dashboard and subsequent device screens have been developed to provide an easy to use navigation environment for the user, where typical status and setting can be found.

Connecting to your AK-SM

Using a standard web browser or your StoreView Desktop application, enter your AK-SM IP address

The factory default User name & password: User Name: Supervisor Password: 12345

Preferences Refrigeration Report Download Report History Log Collection Alarm Log Collection Log Oﬀ

Dashboard screen

System View screen

Dashboard view

Once the correct user name and password has been entered the Dashboard screen will load. The Dashboard screen will only reﬂect what your application conﬁguration has been set to. For example, if your application does not have any HVAC conﬁgured the Dashboard will not show the HVAC panel. Dashboard panels are automatically generated depending on the conﬁguration, no user action is required to build the panels.

To guarantee the best experience when connecting to your

AK-SM, ensure you PC has the latest version of Adobe® Flash®

Schedule screen

History (logs)

Use the simulator tool to

simulate conﬁgured Misc

points (only available through

RMT oﬀ line tool)

Active alarm panel

Lighting panel Misc panel Energy panel

Global alarms (all

connected

AK-SM units)

Expand panel buttonData poll refresh info Refrigeration panel HVAC panel data communication status

Device detail screen Info screen (software

version, etc)

Central AK-SM

conﬁguration screens

Upon the Dashboard loading, if any active alarms are

present the built in alarm buzzer can be heard. To silence the alarm press the silence button. This does not acknowledge or clear any alarms.

User Guide | AK-System Manager, AK-SM 800 Series

File

Preferences

Setup the preferred start screen

Visualize the Misc section on the dashboard

Enable or disable sound if an alarm occurs

Enable or disable the possibility to minimize or close Storeview Desktop

Enable or disable the possibility to resize or minimize Storeview Desktop

Logs the user oﬀ after a time of inactivity

Enable or disable the possibility to logon automatically if Storeview Desktop starts. If the function is enabled, credentials are needed.

Section to customize graph colors for analog and digital lines. Used in displaying history.

20 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Refrigeration Report

When selecting the Refrigeration Overview report it is possible to output a current status report of conﬁgured refrigeration. The report will display current value, setpoint, alarm, defrost and device address. The report can be exported to PDF, CSV and Print.

It is also possible to export the Refrigeration report to a USB ﬂash drive in simple text format, which is mounted in the AK-SM 800 USB port (user must be authorized).

User Guide | AK-System Manager, AK-SM 800 Series

Download report

It is possible to download a text ﬁle which contains all information’s of the unit. It is information’s about the whole unit setup, alarms, schedules, scanned devices, audit trail and the controller database. If some of the information’s is not needed, a setup can be made under Conﬁguration/System/System Report

System Report : Store Name : Super Store Store Id1 : Store Id2 : Street : Millerstreet 63 City : 46569 Baltimore Phone : Mac Address : 00:0B:2D:08:00:17 Unit Address : 0 Unit Name : Superstore Unit 1 Created on : 03/07/14 09:02 Software Version : G08.020 Software Created : 14/02/14 10:55 Factory Application : G08F011 Boot-loader : 9.3 CPU Base Board : 2 CPU Version : MPC5125 V1.0 CPLD Version : 2 Dynamic RAM : 256 Mbyte MRAM : 512 Kbyte Serial Flash : 64 Mbyte ST Device ID 0x76 Parallel Flash : 64 Mbyte Unknown Device ID 0x7e2301 RAM Disk : 40 Mbyte 24% Full IP Address : 192.168.178.24

Licensed features: Refrigeration HVAC Lighting Com-Trol

22 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Auto History Log Collection

The user can create with Store view Desktop a daily or weekly export of Log data. The computer running Store View must be permanently connected to the AK-SM 800 network and remain running in order to auto collect log data.

The ﬁle format can be CSV for further use in Excel or other tools or HST to reread the data with Store view Desktop. To export Store view Desktop must be connected to the AK-SM 800.

Enable/Disable the auto collection

Selection of the ﬁle format

Separator for CSV (, or ;)

Collection rate daily or weekly

Select the destination folder for the

exported ﬁles

Select the sample rate for

the exported ﬁle

Conditions, if the frequently export is always used:

1. Add Store view Desktop to the PC auto start section

2. Disable in “Preferences” the log oﬀ after inactivity period

3. Enable the auto logon feature and set the credentials

Selection of data points

User Guide | AK-System Manager, AK-SM 800 Series

Auto Alarm Log Collection

The user can create with Store view Desktop a daily or weekly export of alarms.

The computer running Store View must be permanently connected to the AK-SM 800 network and remain running in order to auto collect alarm data.

Enable/Disable the auto collection

Separator for CSV (, or ;)

Collection rate hourly,daily, weekly, monthly

Export of all alarms or only active, acknowledged or cleared alarms

Select the destination folder for the

exported ﬁles

Collection rates: Hourly – no additional setup is needed Daily – Time stamp is needed Weekly – Time stamp and day of the week is needed Monthly – Time stamp and day of the month is needed

Conditions, if the frequently export is used:

1. Add Store view Desktop to the PC auto start section

2. Disable in “Preferences” the log oﬀ after inactivity period

3. Enable the auto logon feature and set the credentials

24 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Managing alarms

Any active alarms will be shown in the Dashboard alarm panel. To view more details regarding the alarm double click the relevant alarm line. A alarm info box will appear with further details regarding the alarm.

In addition to more information, the info box also allows the authorized user to Mute/Acknowledge the alarm and to jump to the device detail screen.

Use the Mute/Ack button to

acknowledge the alarm. When

pressed the alarm will ‘move’ to the

Acknowledge list

Alarm info pop up

Click the detail button to jump to the device detail screen

To view all system alarms (known as global alarms) use the Alarms tab (found on the main menu)

Global alarm screen

Global acknowledge list

Global active alarm list

Status and Service screens

Global cleared alarm list

Service screen

Under the service screen tab, test alarms can be conﬁgured and set.

Export Alarms Export to CSV ﬁle

User Guide | AK-System Manager, AK-SM 800 Series

Device detail

Whilst the Dashboard screen will show basic asset information (AK-SM unit address, Asset Name, Value, Status and alarm), more detailed information can be found by double clicking an asset line in the Dashboard. The resulting device detail screen will reﬂect more details and settings. The device detail screen is designed to provide key status and operational settings for the selected device. Easy navigation to other assets is done via the navigation tree. The screen image below highlights some of the main areas of the device detail screen.

Navigation Tree

Status | Settings | Manual Operation tabs

Device alarms/History/Schedules and Advanced View

Controller group menu (based on the controller type)

‘Snap shot’ history

Full screen button

Status

Under the status tab, common read only datapoints are shown

Settings

Under the settings tab, read and write values can be shown. Double click a line to make changes (if authorized)

Manual Operation

Under the Manual Operation tab, key user override functions are available

Use the ‘Advanced view’ screen to access Measurements and Settings side by side. This screen is useful to access all read/write parameters for the particular controller

Advanced screen

26 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

System view

The system view provides a generic yet graphical view of your conﬁgured controls.

The same principle of the navigation tree can be seen in the left side of the screen. The system view screen shows any conﬁgured Rack or Pack, with associated evaporator circuits. To see additional information, hover your mouse pointer over an icon, a pop up box will appear showing additional information. To view additional information and gain access to settings click the ‘show Detail’ button. A dashboard will slide across, where a Status, Settings and Manual operation can be seen. Simply click an asset to highlight and the detail table will update with reference to this selected device. Once complete with the device settings, close the dashboard by clicking the ‘Hide Detail’ button.

System View (Refrigeration)

Gain access to more details via the ‘Show Details’ button

User Guide | AK-System Manager, AK-SM 800 Series

Schedule view

The schedule view provides a system wide view of schedules (previously conﬁgured) in your AK-SM or host of controllers. The following schedules are currently supported under the schedule view;

Shutdown (Generic controllers - i.e. AK-CC) Defrost (Generic controllers - i.e. AK-CC) Case Lights (Generic controllers - i.e. AK-CC) Night Setback (Generic controllers - i.e. AK-CC)

If a host network of AK-SM units are conﬁgured, a full system view can be seen by selecting the folder icon, for a (AK-SM) unit display click the relevant heading under the folder view. The schedule screen includes a mouse hover over, that indicates (per circuit) the schedule times.

Change the graphical view to text (table) form, Print, save as PDF or save as CSV

28 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

History (Logs)

To access your AK-SM history, select the history tab. Upto 8 datapoints can be viewed at any given time on the history screen.

History Tool bar

When viewing data in the history view the tool bar has a set of functions to enable various actions to be performed.

Export history function

Export to .hst or csv ﬁle format. Saving the collected history points (as .hst) will allow the user to re-load these at a later date (via the ‘load history from ﬁle’ button

Load history from ﬁle

Load a saved .hst ﬁle to view

Convert history ﬁle to .CSV

Zoom

Page control

Load history group from ﬁle

Preferences

Save history group to ﬁle

(Creates a ﬁle that contains deﬁned parameters.

This saves time locating the parameters when loading a graph)

User Guide | AK-System Manager, AK-SM 800 Series

Collecting and viewing history

1. From the history page, press the collect button

2. Select the required datapoints and time/date range. Multiple points can be collected but only 8 can be later shown in the history screen at any given time. After the datapoints have been downloaded, a dialogue box will appear which provides two options:

- Select points to draw

- Save to .hst ﬁle (for later view)

3. The graph will be presented for view and analysis. Use the zoom buttons or hold the left mouse button and hold for zoom area. Moving the mouse pointer will show a tool tip with point description, time/date and value.

Show curves (provides a computed rounding of the analog curve)

Show Symbols (each symbol represents a sample)

Save History Group to ﬁle (saving time for frequent datapoint selections)

This feature allows the user to save a set of history datapoints. Typically this feature would be used when a set of datapoints is frequently needed to be loaded and viewed. Once the datapoints are saved, this history group can then be easily loaded - thus saving time in selecting datapoints.

Load History Group from ﬁle

Use this feature to load any previously save datapoint groups. When opening the history group ﬁle the system will prompt for the ﬁle location. Once loaded a ‘select datapoint’ box will appear with the datapoints already pre-selection

30 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

Export History data

This feature allows the user to export the previously collected history data. 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’ button to load any saved history ﬁles.

User Guide | AK-System Manager, AK-SM 800 Series

Chapter 4: Conﬁguration

The following section describes the typical steps required for commissioning and conﬁguration of your AK-SM. Although site applications can diﬀer from one site to another, many setup procedures are common. This setup section assumes the AK-SM is mounted and all necessary power, network cabling and controllers are in place. The described work ﬂow is based around the AK-SM web browser interface, but would equally apply if being done via the local screen. Further detailed commissioning instructions are found throughout this user guide.

The AK-SM oﬀers unique control ﬂexibility in that both centralized and de-centralized control methods are supported. The term ‘centralized’ is used to describe the control of refrigeration Racks via I/O (Danfoss Input / Output modules). Under this method of control the refrigeration control is managed directly from the front end (AK-SM), with ﬁeld bus I/O. De-centralized control is the term used to describe the full support of Danfoss Pack and Case controllers. Under this method, each Pack or Case controller on the network can be seen as self contained, with control logic built in. The front end (AK-SM) under this type of application is more of a network manager, providing full read / write access and energy saving functions.

When starting your system conﬁguration you will have the opportunity to select either Centralized or De-centralized (or a mix of both) control methods.

The following areas of system conﬁguration will be covered in this section:

1. Initial conﬁguration - web wizard and copy wizard

2. Network Nodes (Network scan/ Node overview, Points, scan / conﬁg status, duplicates, upload/download)

3. Time (Set time/date, time zone, operating Hours, Daylight savings, Holidays)

4. System (Store / Region Names, Units preferences, Authorization levels and users)

5. Communication (DNS, DHCP, IP Ports)

6. Alarms (XML, e-mail, Routing)

7. Control (Conﬁgure Refrigeration, Lighting, Miscellaneous, Energy meters and Gas detection)

Once successfully logged into the AK-SM (web) and assuming you have the required authorization, system conﬁguration is done via the central ‘Conﬁguration tab’. Clicking this tab reveals the conﬁguration ‘sub tabs’. Depending on your selection, these sub tabs will change dependent on content.

Using the menu structure seen in the ‘Conﬁguration’ page, a step by step process can be applied when setting up your AK-SM.

De-Centralized

Pack & Case

When conﬁguring your application, have in mind which control strategy you wish to utilise.

Centralized

Rack I/O

Navigation ‘bread-crumb’

Central conﬁguration menu

User Guide | AK-System Manager, AK-SM 800 Series

Initial Conﬁguration - Web Wizard

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). Navigate to the Conﬁguration menu

Preferences Wizard (Language, store names, units, preferences, time, date, daylight savings)

1. To easily conﬁgure your units preferences, launch the Preferences wizard. Use the Wizard navigation controls to move thought the Wizard screens.

2. To make changes, double click on the relevant line and continue until the ﬁnal screen.

3. Press the ﬁnish button to complete and close the wizard (return to main wizard screen)

Users Wizard (Create, modify users, user groups, authorization levels)

1. Enter number of users required (max 22), set password and browser language for each user

2. Enter the number of authorization types (max 7), against the settings line double click to modify the scope of system access

3. Press the Finish button to complete the Web Wizard

Licensing Wizard (Enter new license functionality) Not currently used

Refrigeration layout Wizard

The layout wizard is designed to be used as multi use database layout tool, allowing the scan and mapping of refrigeration devices. Make sure that the vast majority of your refrigeration devices are available and ready for layout prior to using the layout wizard. The wizard allows to scan organize and reorganize the complete layout.

Web Wizard Navigation

Back Close Progress Forward

Limitations: Whilst the wizard will layout the Pack and Case relationships, further controller conﬁguration may be required. Refer to section 6 under ‘ Conﬁguration’ for guidance on any remaining conﬁguration areas required. Currently the wizard is intended for Pack and Case devices and HVAC devices, any controls not designated as such will have to be conﬁgured using traditional conﬁg methods (see Conﬁguration section).

Important Notes: If subsequent conﬁguration is required after an initial use of the Layout Wizard or an oﬄine database has been loaded, go to the Conﬁguration  Control section to add / modify your device(s).

Only use StoreView version 1.19.07 and above or a live SM800 Web Browser connection when utilizing the Refrigeration conﬁguration wizards.

To re-use the Layout wizard more than once the Refrigeration database layout needs to be reset- do this by going to the Conﬁguration  Control page and set # of Racks/Packs to 0. Warning- this will delete any previous Refrigeration conﬁguration (all other conﬁguration remains unchanged)

32 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Open the Refrigeration layout wizard and follow the described steps, each step has some description for the available actions. The following wizard screens are available in sequential order;

Network (select and perform network scan)

Discovery (list scanned devices)

Compressors (Input Pack controller name, view address, model,

add, copy, remove)

Circuits (Input Evaporator controller name, view address, model, add, copy, remove)

Suction Group mapping (Drag and drop your evap controllers under each pack)

Summary (view your groupings before ﬁnishing wizard and thus processing your selections to the AK-SM)

Note: For ModBus networks with >40 devices, set number of polls to 2 in the network selection screen.

Please note that the Danfoss Refrigeration gas sensors will not show up via a layout wizard scan. A manual scan is currently required to detect and conﬁgure these sensors.

After the relevant networks have been selected an scanned the ‘Discovery’ screen will show all detected devices. Once satisﬁed with the correct content press the forward button to continue the wizard.

Double click the ‘Name’ line to enter a custom description for the device. Pressing return will automatically focus on the next device name in the list.

Use the Add button when creating oﬄine nodes. Double click the ‘model’ line to bring up a selection of nodes

If your scanned list has known devices that are standalone

(not associated with a Pack) these must be mapped under ‘No Compressor’. Manually add a new compressor and double click the model line and select ‘No Compressor’. When the ﬁnal wizard screen is presented any standalone controls can be mapped under this ‘No Compressor’ group.

The ‘Compressors’ screen allows for custom text input. If working oﬄine (programming a database not being connected to a AK-SM) the Add, Copy and Remove buttons can be used.

The ‘Circuits’ screen follows the same principle as the Compressors screen.

User Guide | AK-System Manager, AK-SM 800 Series

The ‘Suction group mapping’ screen allows for the deﬁned evaporator devices to be ‘mapped’ under the required Pack controller. This mapping forms a relationship or grouping between the pack and the evaporator devices. This grouping association will then be seen in the AK-SM conﬁguration and dashboard screens (and can be used to easily set up master control functions like Suction optimization).

As the user description indicates, use a drag and drop action to group your controls. Use the CTRL key and multi-select cases to save time when making bulk actions. You can remove any case devices by simply dragging back to the available case list.

The check box labelled ‘Allow multi-case circuit creation’ is to support Centralized refrigeration control conﬁguration, where multiple case circuits are available’. Leave this check box empty if you are using a de-centralized control strategy (i.e. Case and pack controllers).

Once satisﬁed with the mapping, press the forward button and the summary screen will be shown. Pressing the ﬁnish button will then send your conﬁguration layout to the AK-SM. During this time a progress bar will be shown and ﬁnally a status dialogue box.

This completed wizard process will layout your refrigeration application. Typically some additional conﬁguration tasks will then need to be completed (i.e. deﬁne alarms, setpoint changes, conﬁgure history), please refer to the following section for further details on detailed conﬁguration.

34 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Copy Wizard

Before performing the copy function ensure your SM 800 database is in sync with any control devices on line – refer to previous section ‘System Upload / Download’ before starting copy wizard’

The copy wizard is designed to speed up the commissioning workﬂow by providing the ability to deﬁne a ‘source’ device and then copy the settings to like type devices. In addition to controller settings, the copy wizard also provides the ability to deﬁne and copy alarm controller conﬁguration and history point conﬁguration. A new feature added under the copy wizard for version G08_031 is the ability to save / load controller settings to and from a ﬁle.

During normal operations, your AK-SM 800 auto polls certain online controller parameters to sustain communications and to refresh key parameters at regular intervals. Please note that during the copy wizard process auto polling is temporarily suspended. Polling is stopped when you reach the parameter conﬁguration screen. Auto polling will resume after a max 2Hr timeout or completion of wizard task or if wizard is cancelled, whichever is ﬁrst. To cancel the wizard at any time only use the top left close ‘X’ button.

Some Danfoss controllers require that the ‘Main switch’ is OFF before allowing any parameter changes. To accommodate this fact, the copy wizard will automatically turn oﬀ the main switch for the source and destination controller(s). The main switch will be reverted to original position after the copy or copy/download is completed. Since the copy wizard changes the state of the device main switch, please pay special attention to operational conditions (i.e. food temperature) during this operation and validate all devices are correctly running after copy completion or cancellation of copy wizard. Failure to review device status may result in devices being left with main switch oﬀ (i.e. no refrigeration).

Important limitations

The copy wizard is currently not designed to fully support the Danfoss AK2 platform of devices (i.e. AK-PC 781, AK-CC 750..) since these devices have a diﬀerent framework than other Danfoss controllers. When using the copy wizard in an on-line environment (connect to active controller network) the copy wizard will only allow ‘Alarms and History’ points to be set and copied. For full conﬁguration of AK2 device parameters Danfoss recommends using the available Service Tool to facilitate commissioning on these device types.

Please note that the copy function will only work against same device, application/code type and is not designed to fully support Danfoss AK2 style controllers.

Preparation

Online Conﬁguration

For onsite (online) commissioning, the copy wizard assumes all relevant controller devices are installed on the network, have correct addressing, and if relevant application type set. Naming of the asset will also help in the copy wizard due to easy recognition of your devices. The ‘Layout wizard’ can assist in this preliminary task.

During the ﬁnal copy/download phase, the main switch of the target device(s) will be switched oﬀ then on after the copy/ download is complete.

Oﬄine Conﬁguration

The copy wizard can be used in an online or oﬄine (via RMT simulator) environment.

Before using the copy wizard make sure the source device

is fully conﬁgured (settings, history, alarms). Whilst it is possible to use the copy wizard to set up the source device, it is not recommended and has been seen that potential errors can occur with this workﬂow – please conﬁgure the source device ﬁrst (outside of the copy wizard). Once source device is conﬁgured the copy wizard can be used, do not make any changes (settings, alarms, history) to the source device whilst in the copy wizard.

When copying history. Be aware, that the copy process always keeps existing logs in the destination and new logs will be added.

BE SURE TO VALIDATE MAIN SWITCH STATUS AFTER COPY WIZARD

Note: When assigning history points to a controller device a recommended max of 100 points per device is allowed. Assigning more than 100 points per device will cause points not to record log history.

User Guide | AK-System Manager, AK-SM 800 Series

Network Nodes

If your application already has controllers and/or I/O modules set and powered you may wish to perform a network scan to validate their connection to the AK-SM. Follow this section to perform a network scan

From the Conﬁguration tab select the ‘Network Nodes’ sub-tab. When your ﬁeld network is complete and all controllers are on line

Use this screens to perform network scan

Relays | Sensors | On/Oﬀ | Variable Output

This tab relates to any AK I/O conﬁgured points, the term points relates to AK I/O relay, sensors, On/Oﬀ Inputs and variable outputs. Any control questions that have required AK I/O control will be seen in these tabs. The purpose of these tabs is to allow the viewing of the I/O point status.

All nodes | Controllers | I/O boards | Other nodes

The scan status menu/tabs allows the user to view any scanned nodes found on the network.

All Nodes: Central list will display conﬁgured devices and points. Only conﬁgured controllers will be visible in this list.

Controllers: view any scanned generic controllers. This screen will also reﬂect address and controller type

I/O Boards: Display AK Board & Point status.

Other Nodes: List of other nodes

‘Use this screens to view status of your assets (Online)

a network scan can be initiated. The operation of a network scan allows the AK-SM to be aware of any controller devices on the network, allowing the AK-SM to communicate and function with the controllers on the ﬁeld bus.

Note: For ModBus networks with >40 devices, set number of polls to 2 in the network selection screen

Duplicates Tab

Check this list to make sure no two devices have been assigned the same network address. Any duplicate address will be shown in this list. Correct any address issues and re-scan.

Upload Tab

The upload tab will list any controllers that have been uploaded. The upload function can be performed in the ConﬁgurationControl area

(one controller at a time) or here (multiple devices with one command). The process of an upload takes the current parameter settings and values from the controller(s) and loads them into the AK-SM database. This operation ensures that the AK-SM database is synchronised with any pre-conﬁgured controllers on the control network. Any upload failure will be shown on this screen, else a time / date stamp will be shown when successful

Download Tab

The download tab will list any controllers that have been processed for download (where the AK-SM sends parameter data to the device). The download function can be performed individually under the

ConﬁgurationControl page or here, where multiple controllers can be selected for download (using one command). The process of a download takes the AK-SM database values and downloads them to the selected controller(s). Any upload failure will be shown on this screen, else a time / date stamp will be shown.

Ensure the appropriate network channel is selected, and press the ‘complete rescan’ line. The AK-SM will now scan the network to identify any connected and addressed controller nodes. The text on the screen will reﬂect the scan progress, after a scan the time & date will be shown (indicating last scan). For SLV support, select MODBUS channel

36 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

After the network scan has completed, any resulting count will be seen against the Nodes Scanned on Network line - this reﬂects the number of found nodes on the scan just completed. The corresponding line below (Nodes conﬁgured in database) reﬂects the current total of network nodes actually conﬁgured in the AK-SM database.

The last group in this table refers to the following node types: OI (Output|Input) RO (Relay output) SI (Sensor Input) V02 (Variable output) Utility Meter (WattNode, Veris, Carlo Gavazzi) Generic (Danfoss case / pack controllers) AK-CM (AK- Communication Modules) Calculations

Each node (type) has a column that reﬂects any conﬁgured or scanned status.

System conﬁguration (Time settings / preferences)

The Time tab allows the system time, time zone, operating hours, daylight savings and holidays to be conﬁgured. Double click a line to make any

changes.

The following examples can be seen for the time zone; London (GMT) = 000 Central Europe = 100 East Coast USA = -500

The operating hours can be set that reﬂect your store operating hours. Any times set in this section can then be referenced to via a ‘Relative schedule’ . Relative schedules are found under the ‘Lighting’ and ‘HVAC’ application areas and apply a (user selectable) oﬀset which references the operating hours schedule.

Holiday’s for full days must be operated with 00:00 open to 00:00 close and not 00:00 open and 23:59 close or 00:01 open and 00:00 close.

System conﬁguration (Time settings / preferences)

After completing the required settings in the ‘time’ tab, navigate to the ‘system’ tab. Under the system tab add the store name and region / preference setting and information.

User Guide | AK-System Manager, AK-SM 800 Series

Use this screen to conﬁgure ‘Store name/details, unit name, preferences, system language’. Double click the appropriate line to make changes

‘Color for old controller data’ is an option to reﬂect data that has yet been updated via a network poll. Data with a * indicates either an oﬄine condition or that the AK-SM is waiting for a fresh update from the device

Legacy I/O type is used to set legacy supported devices

The Auth (Authorization) screen allows the deﬁnition of up to 7 authorization types.

Reﬂects what license is conﬁgured for your AK-SM. Diﬀerent license allow additional functionality.

The users screen allows the deﬁnition of up to 20 users

The Files screen provides access to Internet ﬁles (the ﬁles needed to support web interface), Device Files (ﬁles needed to support controllers) and Device management. For important information on device management see notes section at the end of this document

The system report screen allows the user to deﬁne what content should be included.

Alarms, Schedules, scanned devices, Audit trail and controller database are available options.

To generate a system report go the main web menu and select File/Download Report

The Auth (Authorization) Levels tab allows the deﬁnition of up to 7 authorization types. Custom authorization types can be conﬁgured with certain system privileges / access. In the example below, 4 auth levels have been deﬁned (factory setting is 3). Level 1 (Supervisor) cannot have the settings changed. To change the level of access of other auth levels, navigate to the desired line and select from the Authorization pop up dialog box. As factory standard, 3 levels are predeﬁned (Supervisor, Service, Daily User), the service and daily user levels can be changed as required.

To add/delete auth levels select the ‘Number of authorization types’ line (max 7 levels)

The Supervisor name can be changed but the level of access / privileges are factory set.

Adding new auth levels allows new users to have speciﬁc access to key system areas. Once new auth types have been created, enter custom name and deﬁne level of access by selecting the Settings line (Authorization pop up box will appear)

38 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

The following areas of authorization are available;

Conﬁguration System: Access to the System tab Authorization: Access to the Authorization tab Refrigeration: Access to Refrigeration conﬁguration HVAC: Access to HVAC conﬁguration Lighting: Access to Lighting conﬁguration Miscellaneous: Access to Misc conﬁguration Schedules: Access to Schedule conﬁguration Calculations: Access to Calculations conﬁguration

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 & sensor overrides Lighting: Allow user to perform the following operations

-override relay

Miscellaneous: Allow user to perform the following operations

-override relay, sensor inputs

Alarms Conﬁguration: Allow user to conﬁgure alarms Routing: Access to the alarm routing Acknowledge: Allow user to acknowledge Clear: Allow user to clear alarms Log: Allow user to set alarm level to log

Other Main Menu: Allow user to access main menu Device History: Allow user to access device history Use Menu: Allow access to Menu function Use USB: Allow use of USB ﬂash Rescan Network: Allow user to rescan network

Users tab

The next tab (user tab) allows the deﬁnition of up to 20 users. A custom name and password can be given for each user. The appropriate level (deﬁned in Auth Level tab) can be assigned to each user. The AK-SM always maintains a single user in the system proﬁle and this level is factory set to the Supervisor level. To add users simply enter the required value in the ‘number of users’ line. The Browser language line reﬂects what language will be displayed in the web browser upon this user logging on [via browser access].

To add users select the ‘Number of users’ and enter required number

Enter custom name, password and auth level for user.

Browser Language: This deﬁnes the language that will be displayed when the user log on via the web browser access.

User Guide | AK-System Manager, AK-SM 800 Series

Communication

The Comm (Communications) screen allows for IP network settings to be conﬁgured. Follow the question lines on the screen to conﬁgure your AK-SM according to site requirements. Any changes in IP conﬁguration will require an AK-SM system reset.

Select ‘Yes’ if a DNS service is to be used. Prefered host name can be entered if setup in router conﬁg. Select ‘Yes’ if AK-SM is to be connected to a DHCP server

Select yes and manually enter the IP address that the AK-SM will use if DHCP fails.

Master IP address - if using multiple AK-SM controllers in a host network, enter the Master (unit address 0) IP address

Alarms

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 connections (typically network should be selected), then select the connection type [e-mail, Remote (Danfoss Retail Care), XML)

The service tab is designed to allow test alarms to be generated. There is also an auto alarm test that can either be on a scheduled or repeated basis.

The AK-SM utilizes an Alarm Action Matrix that allows a high degree of ﬂexibility for various alarm routing options. At the heart of the alarm conﬁguration is the ‘Alarm Routing’ page, where diﬀerent routing options can be deﬁned, along with time delays and alarm output stop conditions.

Internet IP address - Specify public IP address which is used to contact your AK-SM via an Internet based connection. Factory web (HTTP) port is 80 & FTP port is 20 and 21, both can be changed to suit your network application.

If your network supports NTP, select ‘yes’ to the question ‘Network timing support?’

AK-SM system based alarm conditions should be set under the System tab.

If the alarm output includes relay(s) the Relays tab should be accessed to conﬁgure the board & point address for these relays

If Controllers (Danfoss Evap & Pack, Power meters) and, I/O has been used in the control conﬁguration (Lighting, HVAC, Refrigeration etc.), these devices can be seen under the I/O Comm tab.

40 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Connections screen - Deﬁne the number of connections, then select the connection type. Your AK-SM can oﬀer the following alarm IP based alarm output;

e-mail, Remote (Danfoss Electronic delivered services) and XML. Depending on your conﬁguration the screen will reﬂect the required inputs in order to satisfy the output. In order for any alarms to be routed out of your AK-SM please ensure a schedule is conﬁgured. Failure to set a schedule will inhibit any alarm output.

To conﬁgure a netwrok connection select ‘Number of network connections’

Type (e-mail | Remote | XML)

Example of e-mail conﬁguration

Ensure a schedule is deﬁned to allow alarm ouput

Enter valid server name (or IP) for e-mail server If your e-mail service requires user authorization, enter user name and password Note: SSL is not supported

Send to: Add the e-mail address for intended recipients

Reply to:

A mandatory ﬁeld that must have a valid entry (address with

same domain name). An abbreviated message would have reduced text in the alarm message

Conﬁgure a schedule to enable the alarm e-mail output

4G Wireless routers

4G technology oﬀers many beneﬁts over standard dial up connections. Utilizing a 4G connection the full range of AK-SM services can be used, including web browser, and RMT. Where Internet / Intranet connection is not available, Danfoss recommends considering 4G as a means of oﬀering IP connectivity. Please consult your local Danfoss sales oﬃce with regard to 4G connectivity.

User Guide | AK-System Manager, AK-SM 800 Series

Service tab

Use the service screen to send test alarms. You may conﬁgure the alarm type and alarm action logic (1-8). In addition, scheduled or repeat test alarms can be conﬁgured on this screen. The internal alarm relay cam also be tested from this screen.

Disabled = No alarms will activate on this point

Log Only = When an alarm occurs on this alarm point it will only

Normal = When alarm is active the output will be sent once (alarm may get re-triggered if the stop condition is set for repeat)

Severe = When alarm is active the output will get re-sent every xx min

Critical = Same as Severe but with separate re-trigger time - when alarm is active the output will get re-sent every xx min

Delete = Removes any applied alarm settings

Select Alarm Action type (deﬁned under Alarm routing)

Auto Te st: Scheduled: Conﬁgure days & time for test alarm Repeated: Conﬁgure interval time for test alarm

Suspend alarms generation (suspend All alarms in the system from being sent): Set time period (min/Hrs) to stop alarms being sent

Any relays conﬁgured for alarm output can be forced on / oﬀ for testing purposes.

‘Version VG08_021 introduces a new user option for the internal alarm relay. If using the internal alarm relay please validate correct setting for your application’

Routing tab

The central alarm action matrix allows various output options (known as alarm actions) and alarm handling conﬁguration to be centrally assigned. Once the alarm action matrix has been deﬁned, any controller or I/O point can be given an alarm action number. The alarm action number corresponds to the appropriate output. (as deﬁned in the alarm routing page). Alarm output options include;

• 5 external (AK I/O) relay outputs

• Local AK-SM buzzer

• Local AK-SM front LED

• Internal alarm relay

• 2 Network connections

• 6 IP / e-mail addresses (3 per alarm receiver)

The following example can be seen as a guide to conﬁguring your AK-SM alarm logic options;

Remember to leave in Auto position after testing

The line item AK(2) Generic Device –‘ Send alarm route clear’ is used, to clear the alarm route in ALL connected Ak2 controllers and is required if the AK2 controller was connected to another Danfoss system prior to getting connected to the AK-SM800 series (i.e. AKA Gateway/SM720).

Change the parameter to YES and a scan will be initiated, the alarm route in AK2 will be reset, and your AK2 devcie(s) will now have valid alarm routing.

42 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

To conﬁgure an alarm action, navigate to the required output line (I.E. Relay A) and press enter. The resulting screen allows the conﬁguration of the alarm actions, any pre delays, duration times and stop conditions. The results of this conﬁguration will be shown in the alarm routing page.

Alarm Actions (1-8)

Up to 8 alarm actions can be deﬁned. Each alarm action can have multiple outputs, making the AK-SM alarm output options very ﬂexible. ‘Look down’ each alarm action number column and any associated outputs will be seen in the left hand column

Component Column (alarm output)

Select from the options seen in this column;

• Relay A-E

• Front LED

• Buzzer

• Int. Relay

• Network 1

• Network 2

Delay

Once an alarm action is deﬁned the associated time delay for the action can be set. This delay is in addition to any delay already deﬁned in any controller (i.e. EKC) or monitoring points (i.e. I/O) deﬁned in the system.

Duration

A duration time is available when either Time or Time/Repeat are selected as stop conditions. The duration setting deﬁnes the length of time the alarm output will be active for (irrespective if the alarm is still active or acknowledged or not) Available in second or minute selections. 0 Sec/ Min duration will result in the alarm output remaining oﬀ. Min = 0 Sec/Min Max = 99 Sec/Min

Custom text that better

reﬂects the alarm relays can

be entered.

Use the ‘component name

display’ to toggle between

custom text & factory name

(Relay A, Relay B...)

Alarm output options

Select the appropriate

‘component’ (i.e relay,

network) and conﬁgure by

double clicking on the

appropriate line

Stop

The stop condition deﬁnes when the alarm output will stop or return to conﬁgured position. The following deﬁnitions apply;

Time = Stop on time (set under duration) Ack = Stop on alarm being acknowledged Clear = Stop when alarm clears Time/Rep = Stop after time delay but repeat if alarm is still active Ack/Rep = Stop after alarm is acknowledged. If alarm still

active after acknowledge repeat alarm action (repeat

Alarm Actions (1-8) Each alarm action can have multiple relays, IP address, etc assigned

Delays & Stop conditions

Set pre delay, duration and stop conditions (for each alarm output selection)

User Guide | AK-System Manager, AK-SM 800 Series

Example conﬁguration

This example will describe the steps to conﬁgure an alarm actions. Alarm action 1 will be deﬁned according to the following;

• Relay A should trigger after a 10 second pre delay. This relay will energize any time and will only reset when the alarm clears.

• The Front LED should activate (de-activate LED when alarm clears)

• The Buzzer should only activate during the Day (Buzzer stops when alarm is Acknowledged)

• Alarm message should also be sent out via e-mail

The above alarm outputs are associated with action 1 - ‘look down’ the alarm action 1 column and the relevant outputs can be seen in the left of the page.

To deﬁne the alarm output options navigate down the page and double click the relevant line.

This opens another page that allows the conﬁguration for that output to be set. In the example below Relay A and the Buzzer can be seen. Follow the same process for the other outputs. For e-mail output, navigate to the Network 1 line and press enter. Here, set the action, time delay & stop conditions. (The actual e-mail conﬁguration is done in the Alarm ‘Connections’ page).

The results of the alarm output conﬁguration can be seen in the central Alarm Routing page. Follow this process for other actions.

‘Look down’ Alarm action 1 column

Relay A Conﬁguration page

Action settings:

Once in the actual output page, navigate through the lines and set the relevant Action. Each action can have the following settings;

Not Selected: No action

Enabled: Will enable this output action (any time of day)

Day: Enable this output during day status (based on store

opening times (ConﬁgurationTime)

Night: Enable this output during night status (based on time outside of store opening times (ConﬁgurationTime)

Delay, Units & Stop settings:

To complete the output conﬁguration set the time delay, units & stop conditions should be set. Stop conditions;

active after acknowledge repeat

44 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Relay tab

If the alarm output includes relay(s) the Relays tab should be accessed to conﬁgure the board & point address for these relays. The example below shows relay A & C, with the associated (AK I/O) board & point address.

System tab

Enter the AK I/O board & point location for the relay(s)

Select N-Open / N-Closed as required

AK-SM system based alarm conditions should be set under the System tab. The alarms seen in this page are factory set but can be changed as per site requirements. Navigate down each line and conﬁgure (pressing the enter key) as required. The following items can be seen and changed under the System tab;

I/O Network Fail: Alarm if communications to AK I/O fails Flash Memory fail: Alarm if AK-SM system memory fails Database Cleared: Alarm if AK-SM database is cleared File Error: Alarm if critical ﬁles do not load / not present on

AK-SM system (I.E. Device list missing) Alarm send fail: Alarm if any active alarms were unable to be sent out NTP Failure: Alarm if the network time protocol fails Host Comm: Alarm If host communication fails Host Count: Alarm if one or more AK-SM units disconnect from host netwok Ram Disk Full: Alert alarm if Ram is getting full (due to EDF ﬁles)

Factory settings can be changed as per customer requirements.

Alarm level & Actions can be changed

User Guide | AK-System Manager, AK-SM 800 Series

I/O Comm tab

If Controllers (Danfoss Evap & Pack, Power meters) and, I/O has been used in the control conﬁguration (Lighting, HVAC, Refrigeration 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. The example below shows an evaporator controller (address 1) with the alarm level set to ‘Normal’ & alarm action ‘1’. These factory settings can be changed in this page.

Any AK I/O points used in the AK-SM system can be found on this page, with the associated alarm level and actions set. The factory settings can be changed as required.

Calculations & Other

If any calculations have been deﬁned in the AK-SM system, alarms can be associated with these. Use the Calculations tab to set appropriate alarm levels and actions.

46 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Control tab

The control tab is the central conﬁguration page for your control requirements. It lays out the diﬀerent application areas and allows the Commissioning Engineer to deﬁne what applications are on site. Once the application areas are deﬁned on this page, more detailed commissioning is done in the dedicated application tabs (covered in following section). Note that depending on your

license version, diﬀerent applications may be visable (or not). 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

For de-centralized control, ensure the control type is set to your required controller type (via drop down menu)

De-Centralized

Pack & Case

Show only scanned devices:

Select ‘yes’ if your controller devices are already on the network, with valid addresses and connected to the AK-SM. By setting to ‘yes’ and after a network scan (covered in next section) only discovered devices will be shown in the drop down boxes. If your controllers are not yet on the network, keep this selection to no.

For centralized control, ensure the control type is set to IO (input/Output). This alerts the SM that you wish to use Danfoss Board and Point conﬁguration for your refrigeration application

Centralized

Rack I/O

Number of Racks / Packs (max 12):

Enter the required amount of suction groups.

Rack type (Use I/O selection for centralized control, select controller type if using de-centralized)

AK IO = built in control via AK I/O No Compressor = No Compressor control Device selection = select required controller

Note: Variable speed drive can be selected as a pack controller.

Suction groups (Suction group or Evaporator control)

Add your required quantity of suctions groups (centralized logic) OR enter how many evaporator controls are available under your Pack (de-centralized)

Note: suction group / evap conﬁguration is then done under the Refrigeration tab

User Guide | AK-System Manager, AK-SM 800 Series

The following screen shots below represent an example of de-centralized conﬁguration (Pack and Case control).

The AK-SM has been conﬁgured for two pack controllers (AK-PC 730 and the AK-PC 840), with 5 Evaporator controllers under each pack. Selection for each Pack controller was made via the pop up box that appears when the Rack line is double clicked.

Once the Pack controllers have been deﬁned and the number of case controllers under each pack have been set, continue to the Refrigeration tab for detailed conﬁguration.

Double click to select your required Pack device

First, navigate to the ‘Address’ tab. Enter a valid network address, corresponding to the address already set in the ﬁeld controllers.

Note: If your ﬁeld controllers have already been conﬁgured with the relevant parameters set, you may wish to perform an ‘Upload’. This function forces the AK-SM to pull back the controller settings and thus synchronize the AK-SM database. Only use the ‘Download’ function if you have ﬁnished controller conﬁguration on the AK-SM and you wish then to send these settings ‘down’ to the controller.

A one click option for this (upload/download) can be found under the ConﬁgurationNetwork Nodes tab

Set a custom name for your control devices

Enter address that matches the physical address in the pack and case controllers

See above note about Download / Upload

48 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Once all the addresses and custom naming is complete escape out of the addresses menu and navigate to the ‘Suction’ tab. This will allow for conﬁguration of the Pack Controller(s). Use the drop down (Suction) menu to access each Pack controller and the corresponding menus. Please note that any online controller devices will invoke a dialog box which asks if you wish to retrieve the data from this controller. This dialog box is intended to direct the choice of either uploading data from a controller (overwriting any previous settings held in the AK-SM database) or not. If you have existing controllers on the network which have already been conﬁgured, choose the upload option (this need only be done once for each controller you view).

Controller menu selection. Use this drop down list to access the diﬀerent controller menus.

When to use Upload / Download function:

The AK-SM holds a database in which all the system conﬁguration is held. This includes any actual controller devices connected or just devices that have been selected ready for conﬁguration. It is important to recognise when to perform an upload or download function so that any preset conﬁguration is not overwritten by automatic upload by the AK-SM.

Upload

This function may be required where the case and pack controllers have already been conﬁgured and all parameters are set according to customer speciﬁcations. In this instance the need is to typically perform an upload function, thus updating the AK-SM database to fully reﬂect the controllers commissioned settings. Once this has been done, changes to the controller settings can be done directly from the AK-SM.

Download

The opposite to this would be where the controller devices have not been set per customer speciﬁcation and the AK-SM should be used as the commissioning tool or window into the controllers. By navigating through all the controller screens in the AK-SM it is possible to conﬁgure the controller parameters and then send these setting to the connected controllers via the download function.

Controller parameters, to modify or change double click line and press the enter key. The new value will be sent to the controller*

* Controller must be online * Some controller types require the main switch (R12 parameter) to be oﬀ

before certain changes can be made

User Guide | AK-System Manager, AK-SM 800 Series

Copy function

To aid the commissioning process, the AK-SM oﬀers a settings copy function which can be used to copy one device settings and alarm conﬁguration to other (similar) device(s). This function works when copying settings to and from same controller version / type devices. The procedure described below is one example of the copy /paste function.

Use the Copy tab to open the copy page, where any same controller type devices can be copied to. The actual device page will act as the copy base, so ensure the correct circuit is selected (in the drop down list). Select all or individual controllers that will be copied to, then press the copy to line.

Import SI | OI function

Use the Import SI (Sensor Input) and Import OI (On/Iﬀ) function to gain access to ‘generic’ controller (Evap & Pack) parameters that are normally not accessible for alarm / logging / Boolean use. This function can be used to alarm on speciﬁc parameters not in the factory alarm list and / or can be used to import controller parameters in the Boolean logic calculator. Up to sixteen points can be selected per controller. This function extends the ﬂexibility of controller support in the AK-SM and opens up the generic controllers parameter list for more customer speciﬁc needs. The following steps highlight the procedure in ‘Importing’

From the import page(s) double click an import line to present a pop up box that shows all available parameters. Select the parameter that you wish to ‘import’ from the controller (you may give it a custom name).

In the example below, the parameter Po Setpoint has been selected. This parameter can now be seen in the miscellaneous calculator.

The copy function copies controller parameters etc from

once device to the AK-SM database, to complete the operation the (copied) settings need to be downloaded to the required controllers.

The Global download function can be seen under the

Network Nodes  Download section

Important note:

Dependent on the load of the system it can take up to a minute, before the imported value can used in e.g. a calculation for further use. If the import of a value is basis for a secure operation we strongly recommend to ﬁnd other ways to secure the system.

Extended Conﬁg function

Extended conﬁguration (changing what parameter is seen in the System View, Dashboard & Device detail status)

Using the extended conﬁguration tab the factory standard parameter that is used for ‘System View’ status can be changed. This feature is useful in giving the end user more ﬂexibility in showing the relevant sensor at the system and device detail views. By changing the overview value the AK-SM will then display the new selected parameter or status in the system view, Dashboard and device detail pages.

50 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Alarms and Alarm Select

Use the Alarm tab to deﬁne the alarm actions associated with this device. Use the Alarm select tab to select up to 300 alarm points (max 300 per AK-PC controller)

Conﬁguration  HISTORY

The AK-SM history section allows the collection and recording of control parameters, values and status. The central history function allows up to 600 ‘points’ to be conﬁgured, a point being a temperature, pressure, status, relay, etc. The collection of history allows further analysis using the AK-SM or remote web browser, where a graphical representation of this data can be made.

To conﬁgure history, navigate to the Setup tab (ConﬁgurationHistory). The following setup lines are visible;

Auto Conﬁgure History: Use this function to auto select typical points needed for logging (the AK-SM will select key points in the Refrigeration, HVAC, Lighting and Misc control areas. Manual conﬁguration can be done to override these selections or add more as required.

Clear History Conﬁguration: Use this function to clear history conﬁguration (points selected for history & the frequency of samples)

Clear History log: Use this function to clear stored history in the AK-SM

Start / Suspend History: Once the relevant points have been selected for history collection (using either the Auto history, manual or a combination of both) press this line to Start the collection. Press again to Stop collection

Status: Displays the current status of history collection (Collecting or Suspended)

No of Conﬁgured datapoints: Displays the number of conﬁgured history points (max 600)

A change of the log interval will delete all previous logs of

that chosen data point.

Note: Ensure the correct time & date are set in the AK-SM.

Make sure the history collection function is running to ensure the collection of datapoints. Use the ‘Start History’ line and check that the status reﬂects ‘Collecting’.

When assigning history points to a controller device a

recommended max of 45 points per device is allowed. Assigning more than 45 points per device will cause points not to record log history.

Auto Conﬁgure History

When selecting the auto conﬁgure history function the AK-SM presents the option to select the history collection sample rate. These can be later changed & modiﬁed under the relevant history device type (Controllers/Relays/ Sensors/On/Oﬀ/Variable/Other)

User Guide | AK-System Manager, AK-SM 800 Series

Conﬁguration  HISTORY

Controllers

If any controllers are conﬁgured for history collection, these can be seen in the ‘Controllers’ tab. The example below shows a evaporator controller with the various control groups accessible via a drop down menu. Any auto history settings will be seen in these controller group lists, manual conﬁguration of any parameter can be done in this page.

Navigate and select appropriate points for history collection, via the drop down menu selector. Double click a required line, a pop up selection box allows the choice of sample rates;

1, 2, 10, 30 mins, 1 Hr

It is not recommended to deﬁne more than a maximum of 100 log points with intervals at 1 minute or lower. Exceeding the ﬁeld bus capacity will cause data to be collected at a slower rate than what is selected in this conﬁguration screen.

Using longer intervals will extend the duration of which the history logs are stored in the unit.

Relays, Sensors, On/Oﬀ Inputs, Variable Outputs & Other

Depending on the deﬁned control criteria, other points may be viewed and modiﬁed under the respective tabs.

52 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Chapter 5: Master Control Functions

(Energy saving features, scheduling and load shedding conﬁguration)

This section will discuss rail heat control, schedules, HVAC, and lighting. Please refer to this section when conﬁguring more advanced areas of your AK-SM.

Rail Heat

The AK-SM can be used to manage the energy output to the case trim heaters (Rail Heat). There are diﬀerent ways to approach the solution to rail heat control, listed below are three main possibilities.

1. Use a Night Setback Schedule

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. Consult speciﬁc controller manual for more details.

2. Use AK I/O relays to control rail heater connections

(using ‘Calculated’ or physical Dew point) By means of utilizing temperature and relative humidity

sensors the AK-SM can calculate the relative Dew point. Based on this Dew point reference and against a set point the output to the rail heat elements can be controlled. This represents ‘tighter’ control based on the calculated Dew point.

From the Control screen navigate to Refrigeration then Rail Heat (ConﬁgurationRefrigerationRail Heat)

3. Use Adaptive Rail heat control

Adaptive rail heat is a feature that groups together a collection

of compatible evaporator controllers that receive signals of the current calculated dew point from an installed dew point / temperature sensor. The installed humidity / temperature sensor connects to the AK-SM (via I/O) and the resulting calculated dew point value is sent to the connected evaporator controllers.

User Guide | AK-System Manager, AK-SM 800 Series

AK I/O relay method

Select ‘No’ to the question line ‘Use Adaptive Rail heat’. Deﬁne how many relays will be used in the control of the rail heat elements (max 30). Cycle time - Used to determine what amount of time the relays are energized, used in combination with the output percentage as set in the Dew point setpoint.

Dewpoint method

- Calculated dewpoint (Using a combined temperature / humidity

sensor - type: EMHS3-1 is recommended. See below for wiring example)

- Dewpoint (Utilize direct output from dewpoint sensor)

Selecting Use HVAC humidity to “yes” Rail heat dew point will be calculated using Rail Temp and Inside RH sensor inputs. A Rail hum point will not be generated by the SM800.

Selecting Use HVAC humidity to “no” Rail heat dew point will be calculated using Rail Temp and Rail hum sensor inputs.

EMHS -3-1 Humidity Sensor (combined Humidity & Temperature): 12V / 24V supply via I/O modules 0-5V Relative Humidity Temperature Sensor

Example: With a Dew point target range of -4.0 to 8.0°c and the Cycle time set for 10 minutes the following behavior will be true. At -4.0°c Dewpoint the relay output will be 0% At 8.0°c Dewpoint the relay output will be 100% At 2.0°c Dewpoint the relay output will be 50% of the cycle time (5 mins on, 5 mins oﬀ) At 7.0°c Dewpoint the relay output will be 90% of the cycle time (9 mins on, 1 min oﬀ)

2.0

8.0

7.0

-4.0

Example of Target Dewpoint & relay output % ratio

Target Dewpoint Range

(0 mins)

Relay output percentage (based on cycle time setting)

50% (5 mins on) (5 mins oﬀ)

90% (9 mins on) (1 min oﬀ)

100%

54 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Adaptive method (with compatible Danfoss evaporator controllers)

Adaptive rail heat is a feature that groups together a collection of compatible evaporator controllers that receive signals of the current calculated dew point from an installed dew point / temperature sensor. The installed humidity / temperature sensor connects to the AK-SM (via I/O) and the resulting calculated dew point value is sent to the connected evaporator controllers. By controlling rail heat according to the actual dew point measured in the store, signiﬁcant energy savings can be achieved. The following section highlights how to conﬁgure active rail heat via the Danfoss AK-CC 550 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’ as the dewpoint method. Upon answering these questions the AK-SM will automatically build sensor points to allow for the humidity and temperature sensors to be deﬁned. As the diagram below shows, the EMHS3-1 sensor has humidity and temperature wired in to an AK I/O module, the points at which these sensors are connected can then be added under the sensor page (ConﬁgurationContr olRefrigeration-Addresses)

When using the EMHS3-1 sensor the

humidity & temperature output will be

connected to AK I/O.

Use the ‘Addresses’ tab to locate the sensor

sub- tab, where the appropriate board &

point can be set (in line with the physical

connections on the AK I/O)

AK I/O modules

Controller bus

Calculated Dew point sent to controllers on bus

Rail Heat Relay

01-1.3 01-1.4

EMHS3-1 Humidity & Temperature sensor

User Guide | AK-System Manager, AK-SM 800 Series

For adaptive rail heat to function correctly ensure the AK-CC 550 controllers are set correctly. Review parameters o85, o86 and o87, as noted below. The screen image below highlights the AK-CC 550 controller (Miscellanious menu), where parameter o85, o86 and o87 are set for rail heat control over the bus.

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.

Enter the number of schedules required. The desired number of schedules will be shown (in this example 3 schedules have been requested). Initially each new schedule is set to disabled, move the cursor to the required schedule line and press ‘Enter’. The resulting page allows the deﬁnition of th e schedule, the following conﬁguration settings can be made;

•

Enable this schedule (ensure this is set to ‘YE S’ to engage schedule)

•

Schedule usage (Choose from Case Lighting, Night Setback, Shutdown, Defrost, Coord Defrost)

• Description (Add custom description for schedule)

• Schedule control (Choose between Time, Digital, Time & Digital, Time or Digital)

•

Number of schedules (select the number of sub schedules required)

•

Start, Stop, Days and Holidays (Deﬁne the Start / Stop times, days and holidays)

Rail heat settings in the AK-CC550 o85 = Rail heat control (select option 2, pulse control with dew point function) o86 = Dew Point MIN limit o87 = Dew point Max limit

At a dew point which is equal to or lower than the value in 086, the eﬀect will be the value indicated in o88. In the area between the two dew point values the controller will manage the power to the rail heat

Each schedule line will also reﬂect the current status

False = schedule not active True = schedule is active Disabled = Not Active (Enable in schedule setup page)

56 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

The example screen below highlights the diﬀerent areas of schedule conﬁguration, in this example the [Case Lights] schedule has been set to start at 04:00AM until 01:00AM based on Time [AK-SM time] or a Digital Input. For this example the Digital Input had already been deﬁned under the Miscellaneous ON/OFF section, using AK I/O input 01-1.1. The schedule will now become true (ON) if either the Digital switch is made OR the Time falls between the set Start / Stop times.

The example also has ac tive schedule days seen as -MTWRFA. Sunday (S) has been deselected (-) therefore the schedule is only relevant Monday  Saturday. I.E. S= Sunday, M=Monday, T=Tuesday, W=Wednesday, R=Thursday, F=Friday, A=Saturday.

After the schedule has been created the associated circuit [Evap] controllers must be selected - do this via the Controllers tab.

Note: A start / stop time of 12:00AM - 12:00AM = always ON

Use drop down box to select other schedules or use ‘Prev’ ‘Next’ keys on the local key pad

To associate controllers with the schedule, use the Controllers tab

Navigate to the Controllers tab and any conﬁgured evaporator controllers will be listed (if no controllers are listed make sure the appropriate controller type is set, as deﬁned in the main control page). Navigate to the required controller and double click the relevant line. This will toggle the controller ‘Selected’ or ‘Not Selected’. Any controller set as ‘Selected’ will become part of the schedule.

Once all conﬁguration of the schedule is complete, navigate back to the Schedules tab & select ‘Enable this schedule’ to YES

Set to YES to enable schedule

Press the enter key to select the pre-deﬁned ON/OFF input

Use the ‘Enter’ key to select or not select any controller(s).

User Guide | AK-System Manager, AK-SM 800 Series

For test or commissioning purpose or use of groups outside of the programmed interval it’s possible to override the schedule.

In case this feature is needed, go to conﬁguration  control – refrigeration  schedules and double click in the selected schedule on the line “Press to turn on”

The status is changing from Auto to manual on.

Note: It is not possible to turn oﬀ and the feature is only available for defrost and not for setback, shutdown or other features.

58 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Customized control

Select the Customized Control Schedule to allow your AK-SM800 to trigger on/oﬀ events based on user conﬁgured control trigger such as a time schedule and/or a digital input. The Customized Control Schedule is designed to switch a speciﬁc controller parameter to establish certain run conditions (only one parameter selection per control device must be selected). For example, a master control parameter may be toggled for control purposes. The customized control schedule can be used to control (on=1/ oﬀ=0) parameter, based on demand (digital input).

In the example below, the user deﬁnes a Danfoss AK I/O point as the digital input ‘source’ and selects the required control parameter via the ‘select device parameter’ question. As an option, an alarm or alert can be conﬁgured upon schedule activation or on schedule de-activation (Invert alarm option). An alarm action may be selected as well.

On the associated tab called ‘Controllers’, those controllers which hold the selected On/Oﬀ device parameter can be selected. Unselect those controllers that should not be included in the customized control.

When the digital input is active, the AK-SM800 will broadcast the value ‘1’ to the selected controller(s), as deﬁned in the ‘Select device parameter’ line and on the ‘Controllers’ tab. When the input signal is de-active, the AK-SM800 broadcasts the value ‘0 to the controller parameters – thus toggling on/oﬀ the selected parameter. With the setting ‘Master Control mode’ set to ‘Enabled’, the parameter value is re-regularly broadcasted. Disabling this feature prevents re-broadcasting more than 1 time even when the trigger state condition remains ‘True’.

Note: A customized control schedule is designed to action on one parameter only. It is not possible to use multiple customized control schedules on the same target controller. It is possible to deﬁne one customized control and only controllers of the same EDF ﬁle type may be selected. Since the customized control may interact with a large network of ﬁeld bus devices, appropriate time must be allowed for the customized control to respond to a state change in the selected Schedule control parameter. By setting Default to ‘On’ the schedule function will continue to broadcast the value ‘1’ in case communication to the digital input is lost. If communication the digital input is lost with the ‘Default’ set to ‘Oﬀ’ the schedule function stops broadcasting to the controllers.

User Guide | AK-System Manager, AK-SM 800 Series

Suction Pressure Optimization

The Adaptive Suction Pressure function in your AK-SM makes it possible to automatically optimize the suction pressure so that it will be adapted to the systems actual load. During optimization, data is collected that tells the system which refrigeration appliances are most heavily loaded. This energy saving function can make substantial savings directly whilst also saving on compressor wear and tear and also providing an analysis tool for refrigeration appliances.

The individual controllers handle the temperature control in the refrigeration appliances. The load and operating conditions of each are continuously collected by the AK-SM via the data communication system. The collected data is computed and the “most heavily loaded” refrigeration points are identiﬁed.

An adaptation can now be made of the Suction Pressure, whilst ensuring the air temperature at the refrigeration appliance is maintained. It is the AK-SM that collects data from the refrigeration appliances and it is the AK-SM that transmits any oﬀset to the compressor pack control so that suction pressure reference is changed to suit the needs of the “most heavily loaded” refrigeration point. It is always the temperature at the appliance that takes top priority and in fact the suction pressure can ﬂoat down if necessary.

The time during which a refrigeration point has been designated “the most heavily loaded” will be summed up in the log (history) within the AK-SM.

The pack suction (Po) pressure is optimized in accordance with the current refrigeration demand, taking into account short-term changes (day/night setback/defrost) and long-term eﬀects (seasonal/weather changes).

In order to get the best eﬃciency out of the Po Optimization function it is highly recommended that a plant survey is done before enabling this function. A poorly running site will not be corrected by Po Optimization and the maximum beneﬁts will not be seen - ensure all plant & evaporator cases are running close to their designed setpoints and that defrost are operating correctly. Also ensure any manual plant override systems are set accordingly to allow the ﬂoating up of suction pressure.

It is highly recommended to always use the latest ﬁrmware available at http://SM800.danfoss.com.

Theory of operation

The Po Optimize function uses a calculation on all controllers to determine a “Load Factor”. This has been developed by Danfoss

and is available in your AK-SM. By use of the Load Factor the Most Loaded Case (MLC) is constantly updated.

Floating of the Suction Setpoint is then determined at any given time by the MLC

1. The AK-SM continuously receives operating information from each (Po enabled) controller connected on the network. The AK-SM is looking for the 'Most loaded case' (MLC). Each evaporator is analyzed to see if it's current operating temperature is within a calculated MLC 'target window'. During defrost and including after defrost recovery, the Po Optimization will temporarily remove the case from the Po calculation loop. This ensures that normal system ﬂuctuations (due to defrost etc) do not eﬀect the overall operation of Po Optimization.

2. In eﬀect the continuous Po Optimization is looking for the evaporator that is under the heaviest load (the one that has to work the hardest to maintain temperature), but still falls within the MLC target 'window'

3. Based on the MLC the Po optimization function will then send a control signal to the Pack controller to optimize the running suction pressure, i.e. ﬂoat the pressure up (based on the max limit set in the Pack conﬁguration page). As the Pack controller allows the suction pressure to increase the AK-SM monitors the complete network and ensures that the refrigerating system as a whole is stable. This then is a continuous function that once set runs automatically and ensures the refrigeration system is running to the best conditions.

This feature is available on all supported

AK-SM Evap & Pack controllers.

60 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Conﬁguration of suction optimization

Assuming a pack and evaporator suction group has already been deﬁned, go to the Pack controller conﬁguration screen. Locate the line ‘suction optimization’ and set to ‘yes’.

Please note that settings may vary depending on the conﬁgured Pack Controller.

This automatically sets all evaporators associated with this suction group to also operate in Po optimization mode. If required, individual evaporator devices can be manually removed from the optimization loop under the individual evaporator conﬁguration screens (Detail tab).

• Set an appropriate Maximum ﬂoat pressure (shown in 'k') change that the optimization algorithm can make to the pack controller.

• Enter a post defrost delay (The time period that the Po Optimization algorithm ignores the evaporator device after a defrost. This allows the evaporator to recover from a defrost without eﬀecting the Po Optimization algorithm).

• Deﬁne Po stop and alarm conditions (if x controllers enter oﬀ line state, then stop optimization)

Once set, the Po optimization operation can be seen under the pack controller screen (optimization tab)- refer to (local screen) examples below.

Enable suction optimization by selecting ‘Yes’. All

evap controllers associated with the Pack will

then be tagged ‘yes’.

It is possible to remove any evap controller in the

optimization function by selecting ‘No’ in the

(evap) device detail (settings) screen.

Evap device detail (settings)

If your AK-SM is conﬁgured for degrees C, Suction Optimization is “K”.

If set to degrees F Suction Optimization is “F”.

User Guide | AK-System Manager, AK-SM 800 Series

Adaptive Liquid Management

The new CO Adaptive Liquid Management (CALM) solution allows full utilization of the evaporator surface in display cases and cold rooms, improving energy savings with CO refrigeration in any store. CALM is a complete solution: It includes The Liquid Ejector, a compatible Pack Controller, and the Adaptive Liquid Control case controller algorithm. To make best use of your System Manager as a component in a CALM solution, make sure to utilize only compatible Case and Pack controllers manufactured by Danfoss.

AK-SM8xx

ALC Allow ALC

AK-CC AK-CC AK-CC AK- CC

To enable automatic CALM control in the AK-SM 800 Series System Manager the Pack controller must be able to determine when to allow liquid control. Similarly, the Case controllers must be able to operate in CALM mode. Please consult your local sales presentative for more details about supported case and pack controllers.

The CALM feature can be enabled by changing the setting ‘Adaptive Liquid Management’ to ‘Yes’. Doing so will continuously monitor the associated Pack controller and distribute the CALM signal to supported Case controllers. It is possible to conﬁgure this functionality per suction group if this is supported by the pack controller itself.

It is possible to exclude selected Case controllers from the CALM functionality by navigating to the ‘Circuit conﬁguration’ area and set the “Adaptive Liquid Management’ setting to ‘No’.

By default, all supported Case controllers will be set to “Yes” and thereby included in the CALM master control as illustrated in the picture.

In the event that the system does not send or receive correct ‘Allow CALM’ signals in time, the CALM feature is designed to return into normal MSS control meaning disabling the CALM feature in all the conﬁgured Case controllers. These situations include:

1. Communication error (Oﬄine) to the Pack controller

2. Pack Controller sends “Liquid Control NOT allowed”

3. Case Controller is conﬁgured to “Liquid Control NOT allowed”

4. The Pack controller does not support CALM

5. The Case controller does not support CALM

Should the Case controllers not receive a CALM signal from the System Manager within 15 minutes, the Case controllers will return to normal MSS operation.

Note: When the ‘Adaptive Liquid Management’ feature is enabled in the System Manager, it is important that NO custom schedules are conﬁgured for utilizing the same master control parameters (‘--- MC. Liq. Ctrl.’, ‘MC Liq.ctrl’ or ‘---Flooding’). Failing to do so could compromise system integrity and result in compressor damage!

62 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

AKC ON (Evap shutdown when injection oﬀ)

One of the main features of the AKC On function is that the SM will detect if there is a pack shutdown condition. The SM does this by monitoring the pack controller for such conditions. If conﬁgured to do so, and upon detecting a pack shut down, the SM will issue a signal to all (conﬁgured) evap controllers under the pack suction group to close their AKV valves. The eﬀect of closing the local AKV valve is to limit liquid ﬂow in the evaporator. Due to the AKV valve being closed during a pack shutdown period there is a greatly reduced risk of liquid hammer or compressor damage upon pack / compressor start up. The AKC ON function must be conﬁgured for each pack suction group. By default, the associated evap controllers are set to ‘yes’ under the selection choice of Evap shutdown when injection oﬀ. If a evap controller is not required to be part of the suction group AKC ON function, set this value to ‘No’.

AKC injection ON

For commissioning, retroﬁt and ﬁlter change mode it is necessary to simulate the signal from pack controller. Means, close valves manually. In case the menu “Evap shutdown when injection oﬀ” a new menu appears in manual operation section, which enables the user to select between injection ON, OFF and AUTO mode.

Under the settings / Summary screen set the question

Pack Conﬁguration

Evap shutdown when injection oﬀ to ‘YES’

Evap Conﬁguration

If the Evap is not required to be part of the AKC ON function, modify the question Evap shutdown when injection oﬀ to ‘No’

Note: make sure that the Pack controller has the ﬁeld Ctrl. Of Injection ON set to Network, for AK2 style devices you may need the Danfoss Service Tool in order to see this parameter

User Guide | AK-System Manager, AK-SM 800 Series

Coordinated Adaptive Defrost

Danfoss oﬀers a range of ADAP-KOOL® controllers that have an adaptive defrost function which allows the case controller to skip scheduled defrost cycles that are not necessary to carry out. Adaptive defrost is based on a real time monitoring of the evaporator performance.

By using the electronic expansion valve as a mass ﬂow meter, it is possible to compare the energy balance between the refrigerant side and air side of the evaporator. By means of this comparison, it is possible to calculate the airﬂow through the evaporator when it is clean.

By monitoring the degrading air ﬂow through the evaporator, it is possible to estimate the ice build-up on the evaporator. In order to calculate the mass ﬂow of the refrigerant, the case controller uses the opening degree of the electronic expansion valve as well as the pressure diﬀerential across the valve.

Refrigerated cases are normally defrosted in groups corresponding to how they are placed physically in the store, for instance all case sections of a refrigerated island are defrosted at the same time. If multiple case sections share the same air ﬂow, the defrost cycle must be co-ordinated, so that all case sections start defrost at the same time and start refrigeration when all cases of the group have terminated defrost.

In order to maximize the number of saved defrost, the case controllers have to be grouped into smaller sub-groups of controllers sharing the same air ﬂow. It is more likely that a group of 3 case controllers all are willing to skip defrost compared to a group of 8 case controllers.

The ‘ADAP-KOOL® system’ oﬀers a failsafe procedure that ensures that the refrigerated cases are defrosted in case of error conditions (e.g. lost communication).

The pack controller provides a ﬁltered value of the condensing pressure Pc converted into saturated temperature Tc. For pack controllers handling trans-critical CO2 systems, the liquid receiver pressure must be distributed to the case controllers. This ﬁltered value of the condensing/liquid receiver temperature is used by the adaptive defrost algorithm in the case controllers.

Automatic adaptation to the evaporator

When adaptive defrost is activated it will carry out an automatic “tuning” in order to adapt itself to the relevant evaporator. The ﬁrst tuning takes place after the ﬁrst defrost so that tuning can be carried out on an evaporator without ice formation. New tuning subsequently takes place after each defrost (but not during night with night blinds using defrost function 2). In a few cases it may happen that the function is not correctly adapted to the relevant evaporator. This is usually because the automatic adjustment has been made under abnormal operating conditions at start-up/or testing the system. This will result in the function reporting an error state. If this happens, a manual reset of the function should take place while brieﬂy setting the adaptive function switch to “0” (OFF).

Status display

For each evaporator it is possible to display the current operating status for adaptive defrost: 0: OFF Function not activated

1: Sensor error state – waiting for sensor OK 2: Tuning Function carries out automatic tuning 3: OK – no ice build-up 4: Slight ice build-up 5: Medium ice build-up 6: Heavy ice build-up

Supported Danfoss Parameters to enable Adaptive Defrost functionality

The table below gives an overview of the defrost parameters required for the adaptive defrost start co-ordination. Before

conﬁguring any adaptive defrost scheduling please check that the case controls used in your application are compatible

64 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

Chapter 6: Advanced features and conﬁgurations

Managers Override

Conﬁguration Control

From the Conﬁguration Control menu select the number of managers override required.

To conﬁgure the override, navigate to the ‘Override’ menu tab and follow the below guidelines

The managers override function allows the authorized user to place Lighting zones and or HVAC units into an override state. The expected implementation for this feature is to provide some mechanical switch in the store managers oﬃce or loading bay. The following options can be seen in the conﬁguration of the manager’s override;

Timed Override (Yes/No) YES - The override will last for the time selected in the ‘duration (in

Hours)’ line. The point will return to normal operation after this time has elapsed.

NO - The override will last until it’s switch on the override box is

operated a second time

Interrupt enabled (Yes/ No) YES - The override can be interrupted by a second operation of

the override switch

NO - The override cannot be interrupted, the point will remain in

override status for the duration of the selected time

Override is for

Lighting – lighting zones HVAC – HVAC units (requires suitable license) Both – The override is for both Lighting and HVAC Other Unit – The override is for a point located on another

AK-SM 800(Host network)

Bluetooth Interface

Override for securing wireless BT interface in supported controllers (e.g. AK-CC 55).

Override all zones (Yes/N o) YES - All lighting zones will be overridden NO - One or more lighting zone (see details below) will be overridden

Override all units (Yes/No) YES - All HVAC units will be overridden NO - One or more HVAC unit (see details below) will be overridden

The ‘Select zones’ and ‘Select units’ buttons appear as needed to let you choose the lighting zones and HVAC units to be overridden. Each will give you a list from which you can select the speciﬁc zones or units to be overridden

Conﬁguration for ‘Other Unit’ Overrides If the point to be overridden is on another controller, you must conﬁgure a Managers override for that unit. Usually, there will not be an actual override box on the remote unit. Use the same board and point number you used for the actual override box. It is a good idea to make the name of the point the same too. Then make sure to conﬁgure the board & point with the same board and point number used for the actual override box, and set the Bcast point to Rec.

User Guide | AK-System Manager, AK-SM 800 Series

Bluetooth Override

Some controllers provide a Bluetooth(RI) communication interface for mobile devices.

Bluetooth® Lock for support devices

Some controllers provide a Bluetooth® communication interface for mobile devices. To prevent accidental or unauthorized conﬁguration changes to these controllers, the system manager can send out a lock signal continuously on the ﬁeldbus to keep the Bluetooth® interface in the controllers locked.

The system manager is able to override the Bluetooth® lock in four diﬀerent ways:

1. Manually

2. Automatic at login

Light

Lighting Conﬁguration

Conﬁguration  Control  LIGHT

Your AK-SM has the built in ability to support lighting schedules 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. The initial lighting conﬁguration is set out under the ConﬁgurationControl page. The initial control question asks how many lighting zones are required. The AK-SM has the ability to share any indoor photocell conﬁgured and to deﬁne how many photocells are required. Once these initial control questions have been completed the remaining conﬁguration is done under the ConﬁgurationControlLight. Lighting control is done via built in AK-SM schedules, and the optional use of photocells. The following section describes a typical lighting conﬁguration, using AK-SM control.

3. Digital input (D) override

4. Timeout fallback

Use the ‘Managers Override” and the “Addresses” tab to conﬁgure a digital input as a Bluetooth® override. This requires an available IO point e.g. via an AK-XM extension module. Use the “Device Access” tab to manually override the Bluetooth® lock and enable automatic unlock when a user logs into the System Manager on the local interface. For both options is it possible to deﬁne a timeout which automatically re-engages the Bluetooth® lock in supported controllers.

Note: it is not possible to enable both methods at the same time.

Detailed conﬁguration is done under the Light tab (ConﬁgurationControlLight)

The initial Lighting conﬁguration is done under the ConﬁgurationControl page.

Danfoss recommends wiring any lighting circuits in

Normally Closed position. This will ensure that if power fails to the AK-SM or I/O modules the lighting systems will ‘fail safe’ ‘ON’

66 | BC316842192932en-001001 © Danfoss | DCS (vt) | 2020.03

User Guide | AK-System Manager, AK-SM 800 Series

AK-SM Built in LIGHTING control (Using AK Input / Output / schedules & Photocells)

The following control options can be seen in the Lighting tab, navigate and press the enter key to change / conﬁgure any relevant points.

Zone Name: Custom description (User Def) or select from a drop down list

User Deﬁned Name: Enter required name Photocell: None (no photocell), Inside photocell, Outside

photocell or Skylight Control Sensor: Min: The lowest-reading photocell at any given time will be used as the control sensor. Max: The highest-reading photocell at any given time will be used as the control sensor. Average: All photocells are averaged, and the average value is used as the control sensor value. Photocell ID#1 (etc.): If any speciﬁc photocell is selected , its value alone will be used as the control sensor value.

Num of Schedules: The number of schedules for this point. Control Method: Schd and photo: For this point to be on, two

conditions have to be satisﬁed: (1) the schedule must be true; and (2) the photocell must be above trip level. Once those two conditions are satisﬁed, the pre-delay timer will start. Schd or photo: For this point to be on, either of two conditions must be satisﬁed: (1) the schedule must be true; or (2) the photocell must be above trip level. Once one of those two conditions is satisﬁed, the pre-delay timer will start.

Tip! For outside lighting control via photocell, the light level needs to be below the trip level. In the case of interior lighting, turn oﬀ lights when we’re above a trip level.

Num of control relays: Each zone is controlled by a relay output (digital output) on the I/O network. Trip Level %: The % level at which the photocell condition will be true and act to turn the lights on. (If multiple relays are conﬁgured, there will be one trip level per relay.)

Range: +/-: The range selected creates a dead band. Pre Delay: When lights are oﬀ, the number of minutes that the

lighting condition must be satisﬁed before lights will be turned on. Post Delay: When lights are on, the number of minutes that the lighting condition must be false before lights will be turned oﬀ. Minimum on Time: When lights are turned on, the number of minutes that they must remain on before being turned oﬀ. Minimum oﬀ Time: When lights are turned oﬀ, the number of minutes that they must remain oﬀ before being turned on. Override Switch: (Yes / No) Whether or not there is an override switch assigned to the zone. Override Duration: The duration of an override when the override switch is used. Burglar Override: When this zone’s lights are turned oﬀ, whether they are to be turned on when a monitored burglar alarm is sensed. Fire Override: When this zone’s lights are turned oﬀ, whether they are to be turned on when a monitored ﬁre alarm is sensed. There is no pre-delay for ﬁre alarms. Enable Dimmer output: Whether or not a dimmer variable output will be controlled. Target %: The photocell level that the controller will seek to maintain by operation of the dimmer. Minimum output (0.0v): The minimum dimmer level. Maximum output (10.0v): The maximum dimmer level. Algorithm sensitivity: Algorithm interval: Max rate of change (% / Sec): Tip! Target % applies if ‘inside’ or ‘outside’ photocell used. If a skylight photocell used, then the min output/max output (slope between 2 points) approach is enabled.

Schedules:

Ty pe 1: Standard (directly linked with AK-SC lighting schedule), Relative (a time that is deﬁned before or after the scheduled start / stop times). Star t1: Scheduled Start time Stop 1: Scheduled Stop time Days 1: Days of the week that will apply to this schedule Holidays: Holidays that will apply to this schedule

User Guide | AK-System Manager, AK-SM 800 Series

Addresses

ConﬁgurationControlLIGHTAddresses

After the relevant Lighting control questions have been conﬁgured, appropriate AK I/O addresses need to be applied. The address inputs correspond to the Board & Point address of the AK I/O modules. Depending on the control deﬁnition made in the previous (ConﬁgurationControlLight) screen various inputs will require board & point addresses. Navigate through the Relays, Sensors, On/Oﬀ Inputs & variable tabs to deﬁne the relevant outputs (Skip the controllers tab as all control is done via AK I/O).

Tip! Standard schedule (eg. on / oﬀ time 8 am to 10pm)

Relative means, relative to the open/closed hours. I.E. Open hours are 8 am until 10 pm and a certain lighting zone needs to come on 15 minutes prior to start of open hours until 30 minutes after closing, the schedule would look like the following;

-0015 on  +0030 oﬀ (so, being relative, the lights are on at 7:45

am and oﬀ at 10:30 pm

Navigate through the various control lines, enter custom description & valid address (Board & Point) that reﬂect the location on the AK I/O network

Alarms

ConﬁgurationControlLIGHTAlarms

After the relevant Lighting control questions and appropriate AK I/O addresses have been applied, check the alarms tab. Depending on the Lighting control conﬁguration alarm points will be seen under the alarm tab.

User Guide | AK-System Manager, AK-SM 800 Series

Dimming control via AK I/O

The AK-SM 800 oﬀers the ability to dim lighting controls via the use of Danfoss AK I/O dimming systems. The following section describes initial setup and conﬁguration.

From the Conﬁguration menu, navigate to the ‘Control’ screen’. Enter the number of lighting zones required

From the ConﬁgurationControl screen navigate to the Light (Lighting) sub tab. The control method setup MUST be ‘Schd and photo’. To use the dimmer night setback option, ensure ‘Skylight’ is selected.

Select Number of control points Trip level: 2000fc A middle range setpoint. Trip Range +/- : The value added to the trip level to turn Sales Lights OFF and allow them back ON. Trip level of 2000 fc “plus” 200 trip range will turn lights OFF at 2200 fc. Trip level of 2000 fc “minus” 200 trip range will allow sales lights back ON at 1800 fc.

Minimum OFF time: The time the zone MUST stay stay OFF before coming back ON. The ‘Min Out & Max Out’ ﬁelds would are interpreted as follows: Min Out at: If the skylight sensor indicated a reading greater than or equal to 180 0 footcandles (fc), the dimmer would be set to 2% . (Minmum output)

Max out at:

If the skylight sensor indicated a reading at or below 800 fc, the dimmer would be set to 65 % (Maximum output.) All readings between these 2 extremes would set the dimmer output per the following:

(‘Min out at’ – sensor)

---------------------- x (‘Max. output’ – ‘Min. output’) + ‘Min. output’ (‘Min out at’ – ‘Max out at’)

Thus, a sensor reading of 1200 fc would result in a dimmer output of: (1800 – 1200) 600

----------------- x (65% - 2%) + 2 % = ------ x 63% + 2% = 39.8% (1800 – 800) 1000

Based on “default” setpoints, the algorithm will work as follows:

Dimming Algorithm Reference Table

Actual foot candle VO%

800 65% (Max)

850 62%

900 59%

950 55%

1000 51%

1050 49%

110 0 45%

1150 43%

120 0 40%

125 0 37%

130 0 32%

1350 30%

140 0 27%

1450 24%

150 0 20%

1550 17%

1600 15%

1650 11%

170 0 8%

1750 5%

1800 2% (Min)

Pre delay: Delay in minutes before the zone can come ON. (Scheduled time)

Post delay: Delay in minutes before the zone can be turned OFF. Minimum ON time: The time that must elapse once the zone has

been turned OFF, before the zone can be turned OFF again.

User Guide | AK-System Manager, AK-SM 800 Series

Algorithm interval is the algorithm cycle. Max rate of change is the percentage of adjustment per second.

With a setting of 1 % for a 1 second algorithm cycle, and a 2% minimum and 65 % maximum output, the full range can be covered in 63 seconds. (1 percent per second for 63 steps.) This schedule turns the zone ON and OFF on a time base. (Setup for 24 hours)

Once the main conﬁguration screen is complete, navigate to the Variable Outputs tab, where a board and point address can be added for the 0-10 vdc board

Setup of analog inputs: Skylight sensor to PHOTO-SKY type Dimmer feedback to misc. conversion factor DIM FEEDBK

Once the lighting conﬁguration is complete the details can be seen in the zone lighting detail screen. The detail screen will reﬂect status, Settings and Service tabs.

User Guide | AK-System Manager, AK-SM 800 Series

HVAC Conﬁguration

Conﬁguration  Control  HVAC

The AK-SM 820 and AK-SM 880 both oﬀer HVAC control and support. Both the AK-SM 820 and 880 oﬀer the same HVAC functionality, the only diﬀerence is the number of HVAC units that can be conﬁgured. HVAC control and support can be via centralized or de-centralized control. Centralized control oﬀers the ability to control HVAC systems via Danfoss AK I/O modules. The de-centralized method allows support for speciﬁc ﬁeld bus nodes.

Initially, navigate to the ‘Conﬁguration Control’ screen, and then declare how many HVAC units you require. In addition to the number of HVAC units, the following questions will also be populated;

# of phase loss monitors # of humidity sensors # of dewpoint sensors

The example below describes a typical centralized control method. As seen in the Refrigeration section, the built in HVAC control is based around a list of control questions. When answering these questions, the control inputs / outputs are being built and will be visible in the Address tab. Navigate to the ‘ConﬁgurationControlHVAC’ screen; here you will need to declare what type of HVAC control method is to be used.

For centralized control, select ‘AHU’ or ‘RTU’ from the drop down list. If you require de-centralized (ﬁeld bus) control, select the controller type from the drop down list. Once selected use the setup tab to continue conﬁguration. In the example below, AHU has been selected.

User Guide | AK-System Manager, AK-SM 800 Series

Number of Zone sensors: The number of zone sensors in the area of the store served by this HVAC unit. Fan Typ e: 1-Speed: The unit has a single-speed fan. 2-Speed: The unit has a two-speed fan. Fan control OPEN hours: Continuous: The fan will run continuously during open hours. Store open hours are deﬁned in the ConﬁgurationTime tab. On demand: The fan will run on demand during open hours. “On demand” means that the fan will run whenever conditions calling for heating, cooling, dehumidiﬁcation, or venting are met. Fan control CLOSED hours: Continuous: The fan will run continuously during Closed hours. Store Closed hours are deﬁned in the ConﬁgurationTime tab (the closed period is from Close time to Open time). On demand: The fan will run on demand during Closed hours. “On demand” means that the fan will run whenever conditions calling for heating, cooling, dehumidiﬁcation, or venting are met. Post delay: The number of minutes that the fan will run after the last stage of heating, cooling, etc. is turned oﬀ. Lockout on proof failure: Yes: The fan will be locked out if fan proof is lost for ﬁve minutes. Human intervention will be needed to restart the fan by using the “Clear” button on the status screen. Evidence of the locked out condition, and the means of ending the lockout, are found on the status screen for cooling or heating function. No: The fan will not be locked out on proof failure. Monitor Phase Loss: Whether or not a phase loss monitor will be monitored. Which phase loss monitor: All available phase loss monitors are shown. Shutdown on phase loss: Whether or not the unit is to be shut down when its phase loss detector input is on. Shutdown on digital input: HVAC unit will shut down based on a digital input Shutdown on smoke detection: Whether or not the unit is to be shut down when its smoke detector is on. Shutdown on ﬁre alarm: Whether or not the unit is to be shut down when a monitored ﬁre alarm is detected.

No. of return air sensors: (1-3) No. of supply air sensors: (1-3)

Cooling: Num of cooling stages: (1-3) The number of cooling stages in this

HVAC unit.

Proof: Cooling stage will be monitored for it’s actual run status Stage x (where x is either stage 1,2 or 3) Tar get: Enter required target temperature Pre Delay: The number of minutes that must elapse after target

plus range is reached before the stage will come on. Post Delay: The number of minutes that must elapse after target

- range is reached before the stage will be turned oﬀ.

Range +/- : The range selected creates a dead band. For example, if the target is 72 and the range is 2, the stage will come on at 74, and will not be turned oﬀ until the temperature reaches 70. Ambient temp lockout: Whether or not there is to be a lockout based on low outside ambient temperature. No Cooling below: The ambient temperature below which cooling will be locked out. Range +/- : The range selected creates a dead band. For example, if the lockout is 50 and the range is 2, cooling will be locked out at 48 and will be allowed on at 52. Default fan Speed: The fan speed for cooling. A diﬀerent fan speed can be chosen for dehumidiﬁcation when it is conﬁgured. Max suction press safety: Lists every conﬁgured pressure sensor. Any may be selected. Only the suction pressure for the cooling compressor in this rooftop should be used. No cooling above: The pressure value of the sensor selected on the previous line at and above which cooling will be cut out. Cooling will not cut in again until the pressure falls below this value and the pre delay speciﬁed in the HVAC control page.

Freeze protection: Sensor Input: There is a leaving air temperature for each stage of

cooling, near the coil. At and below the setpoint (next line), the cooling stage will be turned oﬀ. On/Oﬀ Input: A single digital input that when ON will turn oﬀ all stages of cooling in the RTU (Roof Top Unit)

None: There is no freeze protection to conﬁgure. Night Setback: Whether or not the cooling setpoints are to be

raised by an oﬀset (next line) during scheduled times (next page) when cooling requirements are not as critical; for example, when the building is closed. Night Setback oﬀset: The amount by which the cooling setpoint is to be raised when night setback schedules (next page) are in eﬀect. Num of schedules: The number of cooling night setback schedules. Override switch: Whether or not there is a switch to override night setback. Override duration: The number of minutes after, activation of the override switch, that night setback will be overridden.

Night Setback schedules: Type: Standard = based on start / stop times conﬁgured in following lines. Relative = based on store schedule with oﬀset time applied Start : Start time Stop: Stop time Holidays: Any holidays, as deﬁned under ConﬁgurationTime

Heating: Auxiliary Heat type: None: There is no auxiliary heat. Staging:

Auxiliary heat is staged. Gas Valve: Auxiliary heat is regulated by a modulating gas valve, Gas/Staging xxx

Stage x

Tar get: Heating target temperature

Gas Valve:

Control from: Supply Target: Control gain (% degree): Integral time: Min valve opening: Max valve opening: Low ﬁre position: Low ﬁre duration: Ambient heat lockout:

High Supply temp lockout:

User Guide | AK-System Manager, AK-SM 800 Series

Fan Speed: Night setback: Night setback oﬀset: Num of schedules: Override switch: Night setback schedules: Dehumidiﬁcation: ‘None’ or ‘cooling’ (humidity, dewpoint or calculated dewpoint, and related setpoints and delays) Air Damper: If set to ‘yes’ it provides pre-delay, post-delay, ambient air temperature lockout and schedule options

AK-SC Built in HVAC control (Using AK Input / Output)

Following from the Controllers tab, the Relay, Sensor, On/Oﬀ Inputs & Variable Outputs tabs allow the adding of the relevant I/O modules required for built in HVAC. Each line would have been ‘built’ depending on the answers given in the various HVAC setup screens (previously described).

If required, enter unique description. Enter correct address for the Board & Point input. Type can be changed according to the selections in the type drop down list.

HVAC Alarms - Alarms Tab

The alarms for the individual HVAC unit can be found under the Alarms tab.

Scroll down each appropriate line and press enter to change the alarm level, the available options being the same as found in previous alarm tab conﬁgurations. In addition to the alarm level, an alarm action number can be set (1-8), conﬁgure the alarm actions in the central alarm routing page (ConﬁgurationAlarms).

Note: For alarms to correctly activate, the central alarm routing page must also be conﬁgured. See Conﬁguration Alarms

Deﬁne the Alarm Action for each alarm output - this links with the central AlarmsRouting page.

Deﬁne the Alarm level (Disabled, Log Only, Normal, Severe, Critical, Delete).

User Guide | AK-System Manager, AK-SM 800 Series

Miscellaneous Conﬁguration

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 shouldn’t be treated like an ordinary refrigeration, HVAC, or lighting asset. Miscellaneous on/oﬀ, sensor inputs can be used in deﬁning the control strategy for miscellaneous relay outputs. Any miscellaneous points conﬁgured can be monitored for history, and may be conﬁgured strictly for that purpose, or for alarms. Routable alarms can be created for any Miscellaneous point. For sensor inputs, the AK-SM allows custom conversion for nonDanfoss sensors that have a linear response (known as Conversion factors)

The initial Miscellaneous deﬁnition is set out in the ConﬁgurationControl page (see below). In addition to Relay, Sensor, On/Oﬀ Inputs and variable outputs the Misc section also has Conversion Factors & Calculations. Further details on conversion factors and calculations can be seen in this section.

Once the required misc points have been set (number required), conﬁguration is done under the Misc tab.

Conﬁguration-Control screen

In this example a miscellaneous sensor has been conﬁgured, but the same principle will apply if conﬁguring Relays, On/Oﬀ and variable outputs. Under the Misc tab, navigate to the sensors tab. Enter a suitable description for the sensor, then under the Bd-Pt line, enter the board & point address for the sensor in question. In this example the address 01-1.2 has been assigned. Review the remaining items in the list and conﬁgure according to your site requirements.

Example of I/O module line up. The communication module (AK CM 101A) has an address set as 1, with module 1 having the sensor in location 2. This is then entered in the AK-SM as 01-1.2

Communication

Module (address 1)

Module 1

Sensor (01-1.2)

Module 2

for this example the board and point address 01-1.2 is assigned

Up to 9 modules can be connected to ONE

Communication Module

Rotary address switches

User Guide | AK-System Manager, AK-SM 800 Series

Relays Tab

The example below shows the Misc Relays tab. Navigate down the control lines and conﬁgure as required.

Example of Misc Relays Tab

If conﬁgured, navigate to additional relays via the drop down box

Name: Enter custom description for relay Bd-Pt: Enter a valid Board & Point address (using AK I/O modules) Broadcast: No: The value of the point will not be broadcast to be used in

logic on other controllers.

Send: The value of the point (whether it is ON or OFF) will be available on the host network for use by other controllers. Be sure that each sending Board-Point combination is unique throughout the system. (If the controller at address #01 is sending from its Bd-Pt address 1-02, then no other controller can have an output at its Bd-Pt address 1-02 sending. Rec: The value of the point is being received from another controller on the host network. You must enter, in the Bd-Pt ﬁelds, the Bd-Pt address of the sending point.

Typ e: Normally Closed or Normally Open Control Input: It is possible to use other deﬁned points

(including calculations) to act as the control Input - these will be seen in a drop down list

Minimum Oﬀ: Deﬁne a min oﬀ time period to stop short cycling Pre Delay: Deﬁne a pre time delay before the relay activates Minimum On: Deﬁne a min on time period to stop short cycling Post Delay: Deﬁne a post time delay to minimize short cycling Number of alarms: Enter the amount of alarms (max 3) Alarm 1: Enter the alarm level (Disabled, Log only, Normal,

Severe, Critical)

Ty pe: Alarm if ON, Alarm if OFF, Cycles (enter number of cycles)

Delay: Enter delay time Units: Seconds, Minutes, Hours From: Deﬁnes alarm output time window To : Deﬁnes alarm output time window Days: Deﬁne the days associated with alarm Action: Deﬁne the alarm action

Re lay Ta b

Depending on control requirements the screen layout may diﬀer.

Navigate though the options, adding custom name, AK I/O address, alarms, pre and post delays etc.

Note: Setting Broadcast to yes will make available the relay status on the AK-SM host network.

If a control input is needed to operate your misc relay, this can be selected on the Control Input line (you will need to conﬁgure your control input in advance)

Any Misc points conﬁgured in the AK-SM system will be

shown in the ‘System View’ under the Power/Misc window

User Guide | AK-System Manager, AK-SM 800 Series

Sensors Tab

The example below shows the Misc Sensors tab. Navigate down the control lines and conﬁgure as required.

Example of Misc Sensors Tab

If conﬁgured, navigate to additional sensors via the drop down box

Name: Enter custom description for sensor Bd-Pt: Enter a valid Board & Point address (using AK I/O modules)

Broadcast: No: The value of the point will not be broadcast to be used in

logic on other controllers.

Rec: The value of the point is being received from another controller on the host network. You must enter, in the Bd-Pt ﬁelds, the Bd-Pt address of the sending point.

Typ e: Select from various option in the drop down list (this example uses a PT1000 sensor)

Sensors Tab

Depending on control requirements the screen layout may diﬀer.

Navigate though the options, adding custom name, AK I/O address, alarms

Conﬁgure alarm setpoint & actions

Control Input: It is possible to use other deﬁned points (including calculations) to act as the control Input, these will be seen in a drop down list

Number of alarms: Enter the amount of alarms (max 3)

Alarm 1: Enter the alarm level (Disabled, Log only, Normal,

Severe, Critical) Ty pe: Alarm if above or if below limit (seen below) Limit: Enter the alarm limit Delay: Enter delay time Units: Seconds, Minutes, Hours From: Deﬁnes alarm output time window To : Deﬁnes alarm output time window Days: Deﬁne the days associated with alarm Action: Deﬁne the alarm action Sensor fail alarms: Enter the alarm level to issue alarm if sensor fails (Disabled, Log only, Normal, Severe, Critical)

User Guide | AK-System Manager, AK-SM 800 Series

On /Oﬀ Tab

The example below shows the Misc On/Oﬀ tab. Navigate down the control lines and conﬁgure as required.

Example of On/Oﬀ Inputs Tab

Name: Enter custom description for Input Bd-Pt: Enter a valid Board & Point address (using AK I/O modules) Broadcast:

No: The value of the point will not be broadcast to be used in

logic on other controllers. Send: The value of the point (whether it is ON or OFF) will be available on the host network for use by other controllers. Be sure that each sending Board-Point combination is unique throughout the system. (If the controller at address #01 is sending from its Bd-Pt address 1-02, then no other controller can have an output at its Bd-Pt address 1-02 sending. Rec: The value of the point is being received from another controller on the host network. You must enter, in the Bd-Pt ﬁelds, the Bd-Pt address of the sending point.

On/Oﬀ Tab

Depending on control requirements the screen layout may diﬀer.

Navigate though the options, adding custom name, AK I/O address, alarms

Typ e: Select from various option in the drop down list Voltage: Voltage Input No Voltage: No Voltage Input Latching: Latching Input Closed: Closed Input Open: Open Input

Number of alarms: Enter the amount of alarms (max 3) Alarm 1: Enter the alarm level (Disabled, Log only, Normal,

User Guide | AK-System Manager, AK-SM 800 Series

Variable outputs

Using a 0-10V water mixing valve application as an example, the following screen can be used on the AK-SM to provide control. The same principles can be applied against a wide range of control needs. Variable output control can also be seen in certain AK-SM Refrigeration, HVAC and Lighting control screens. Using the Miscellaneous area of the AK-SM a variable output point can be created. After authorization, navigate to the conﬁgurationcontrol page. Enter the required quantity of variable outputs, remembering to also add a sensor input (which will be later used as a water temperature reference).

Next, navigate to the Misc tab and scroll to the variable output tab. Enter a descriptive name and the board & point allocation (the point number will be 1 to 4). Deﬁne the working voltage range, here a 0-10 V range is set. The previously conﬁgured sensor input (water temp) can be deﬁned, along with the output % range and is used as the control reference point.

An override relay or switch can be added if required (not used in this example). Finally an analog output fail safe can be configured. The fail safe feature is to ensure safe operation during power outages, network disturbances etc.

The following options are available;

• Stay unchanged - upon failure keep output voltage unchanged

• Maximum output - set output to 100%

• Minimum output - set output to 0%

• Predefined value - user set value %

Example of Variable Output Tab

If conﬁgured, navigate to additional Outputs via the drop down box

Name: Enter custom description for Output Bd-Pt: Enter a valid Board & Point address. Variable output is

done via VO2 board (described opposite) Range: Select from various option in the drop down list: 0-10, 10-0, 0-5 Volts

Control Sensor Output 0% Output 100% Override type (Relay Output, On/Oﬀ) Override point Failsafe Type (Stay unchanged, Maximum output, Minimum

output, predeﬁned value - user deﬁnable)

Number of alarms: Enter the amount of alarms (max 3) Alarm 1: Enter the alarm level (Disabled, Log only, Normal,

Variable Output Tab

Depending on control requirements the screen layout may diﬀer.

Controlling sensor

In this example the sensor was pre-conﬁgured and labelled as ‘water temp’

Failsafe value (see below for description)

User Guide | AK-System Manager, AK-SM 800 Series

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.

Terminal 9: 12 V max 100 mA Terminal 10: 5 V max 25 mA

Terminal 11, 12:

Terminal 2, 4, 6, 8: GND-AI 1-4 Terminal 17, 19: GND-AO 1+2 Terminal 21, 23: GND-AO 3+4

Galvanic isolation: AI 1-4 ≠ AO 1-2 ≠ AO 3-4

User Guide | AK-System Manager, AK-SM 800 Series

Conversion Factors

Conversion factors are used for sensors that have an output range or range-to-value relationship not already deﬁned as one of the named “types” in the sensor input conﬁguration list box. The following example highlights the Conversion Factor screen.

Conversion Factor Tab

Example of Conversion Factors Tab

Depending on control requirements the screen layout may diﬀer.

No of conversion factors: Enter the required amount of conversion factors

Conv 1: Name for conversion factor (user changeable) Units: Select from a range of unit types: psi Bar °F % °C ppm (Parts Per million) V (Volts) Amp Kw kWh Hz gpm (gallons per min) fps pH fc lpm (litres per minute) lps (litres per second) Minimum Input: Maximum Input: Minimum output: Maximum output: Lux:

User Guide | AK-System Manager, AK-SM 800 Series

Detail View

Status

Settings (see also conﬁguration)

User Guide | AK-System Manager, AK-SM 800 Series

Service

Consumption

The place for the address of the utility meter pulse did not change. Still available here under sensors

User Guide | AK-System Manager, AK-SM 800 Series

Parameter Description

Manual defrost start Used to start a defrost cycle on a case controller. If this parameter is set ON the case controller will always

initiate a defrost cycle. (Few exceptions does exist e.g. if Main Switch is set OFF, Defrost control is not Enabled, Case cleaning is ongoing, Case is in shutdown mode, forced closing condition with disabled defrost).

MC defrost start Also a defrost start signal, but this signal will not initiate a defrost cycle if the adaptive defrost function in

the case controller allows to skip the scheduled defrost. If the case controller is not set up for adaptive defrost, the signal will initiate a defrost cycle.

Request defrost If the case controller is setup for adaptive defrost skip functionality, this parameter indicates whether the

controller will initiate the next scheduled defrost. ON: Case controller will initiate a defrost cycle if the MC defrost start signal is set ON.

OFF: Case controller will skip the next defrost cycle if the MC defrost start signal is set ON and the skip defrost counter will count 1 up.

Defrost state Parameter that indicates the actual defrost status of the controller. This parameter is already used by the

standard defrost co-ordination function in AK-SM850.

Tc mean Filtered condensing pressure (converted to saturated temperature) read by AK-SM 850 from the associated

suction group In pack controller) and distributed/written to the case controllers every 10 minutes. If the signal is not updated every 15 minutes in the case controller, the value will fall back to a default value.

Methodology of adaptive defrost

The following section describes the methodology of adaptive defrost.

When the defrost schedule reaches a defrost initiation time the following will happen for each subgroup of controllers;

AK-SM 800 will read if any of the case controllers are requesting a defrost cycle. The “Defrost request” status can be read from all case controllers supporting adaptive defrost with skip.

If just one controller requests a defrost cycle, AK-SM 800 will start a defrost cycle on all case controllers of the sub group in question by setting the “Manual defrost start” parameter to ON.

If none of the case controllers are requesting a defrost cycle, AK-SM 800 will send a “MC defrost start” signal to the case controllers of the sub group in question. The reason for sending the “MC defrost start” parameter is to enable the case controller to count the number of skipped defrost.

Exception handling

If a case is not conﬁgured for adaptive defrost or has no adaptive defrost function, it will always execute a defrost, members in the subgroup will also be (forced) into defrost. In this situation, all case controllers must start a defrost cycle. If the defrost request signal cannot be read from one or more case controllers at the time of defrost initiation, AK-SM 800 will start a defrost cycle on all case controllers in the sub-group by setting the “Manual defrost start” parameter ON.

User Guide | AK-System Manager, AK-SM 800 Series

Process diagram

The diagram below shows the process for defrost initiation for each sub group of controllers.

Coordinated Adaptive Defrost schedule and sub-grouping of controllers

Setting up an (coordinated) adaptive defrost schedule

Prior to any defrost schedule conﬁguration, it is required that the relevant case controls are conﬁgured to accept adaptive defrost (i.e. set controller d21 AD Mode =4).

Under the Conﬁguration>Control>Refrigeration>Schedules tab, create a new schedule – type Adaptive Defrost.

Selection of adaptive defrost schedule

User Guide | AK-System Manager, AK-SM 800 Series

The next step is to associate select case controllers to the (Adaptive) defrost schedule. Next, group the controllers into sub groups, corresponding to case controllers that share same airﬂow in the refrigerated cabinets.

The reason for putting controllers into sub groups is to maximize the defrost savings – i.e. 3 controllers are more likely to agree upon skipping a defrost cycle than 8 controllers.

Example: An island of refrigerated cases consists of totally 8 case sections (evaporators) – 3 case sections on each side and two individual end sections. In this example the user must be able to divide the group of controllers into 4 sub-groups:

Sub group 1: 3 case controllers on one side Subgroup 2: 3 controllers on the other side Subgroup 3: End section Subgroup 4: End section

To support this conﬁguration a master ‘Adaptive Defrost’ schedule is deﬁned, with the controllers then getting grouped together using the sub-group option. This grouping eﬀectively provides the coordination feature so that all cases are in sync during defrost / refrigeration cycles.

User Guide | AK-System Manager, AK-SM 800 Series

Manual defrost

The user can manually start a defrost at an individual case level (via device detail screen>Manual tab) or a schedule wide command can be performed. To initiate a schedule wide (all controls associated with that particular master defrost schedule) navigate to the schedule screen (Conﬁguration>Control>Refrigera tion>Schedules) and double click or press the ‘turn on now’ action line. The status ‘defrost group’ will then be shown under this schedule screen.

User Guide | AK-System Manager, AK-SM 800 Series

Energy

Energy Conﬁguration

Conﬁguration  Control  ENERGY

The AK-SM system can monitor Danfoss-approved energy meters which have a network interface. In addition to the network meter models, pulse inputs can be fed from a wide range of non supported meters to AK I/O pulse boards & thus basic kWh monitoring can be done. Once either a supported meter or pulse input has been conﬁgured, the AK-SM can display current electrical status and log data for history purposes. In addition to viewing and recording electrical data, demand limiting can be performed on lighting and HVAC loads.

The AK-SM system can have a max of 80 meters, only one of the meters connected to an AK-SM can be used for demand limiting. The following section describes the conﬁguration of Pulse and network meter types, and highlights the demand limiting function.

The Danfoss approved power meters can be seen when selecting meter type under the control question in ConﬁgurationControl page and are described in the example below.

Conﬁguration  Control  ENERGY [Pulse input from meter]

From the ConﬁgurationControl page, navigate to the Energy tab. This example will describe the conﬁguration of a Pulse meter type. Choose this ‘type’ if a non supported power meter has a pulse output that can be connected to a pulse AK I/O module (AK-XM 107A).

Under the Meter Setup tab the following screen can be seen;

Detailed conﬁguration is done under the Energy tab (ConﬁgurationControlEnergy)

The initial meter conﬁguration is done under the ConﬁgurationControl page. Deﬁne how many Meters are required, then select meter type..

Energy meter choices: Pulse/Vol = used to record volume via pulse (set to Liter, Gallon, Cubic meter (m3), Cubik feet (ft3)

Pulse = Output from meter fed in to AK I/O module WN Plus= WattNode + brand meter (supplied by Danfoss). CG_EM24AV0, AV5,AV6,AV9 = Carlo Gavazzi EM24 (Note NOT

compatible with other MODBUS nodes on network) VER_EH8035/36 = Veris modbus meter Carlo Gavazzi WM30AV5 is compatible with other MODBUS devices on the same MODBUS network

Meter Setup Tab. All meter types can be seen in this window. In this example, pulse meter has been selected.

Enter custom name for meter If using the pulse meter input for demand limiting, answer ‘yes’ to the question ‘use for demand limiting’ See descriptions below for further details.

User Guide | AK-System Manager, AK-SM 800 Series

Name: Enter custom description for meter Window Size: [Visible only when demand limiting set to yes] The

window width is set to 15, 20, or 30 minutes. Every minute, the window “slides” forward so that it always contains the most recent period of time. Each minute the accumulated KW during that minute is recorded.

Watt-hours per pulse: Enter relevant value- Watt-hour per pulse Collect History: Select yes to collect history from this meter Use for demand limiting: Whether or not this meter is to be

used for demand limiting. Normal Load 01 - 24 Hrs: Enter the upper demand limit you do not wish to exceed for the given hour of the day (deﬁned by each hour line) under normal operating conditions (when using normal power). There is one ﬁeld for each hour of the day, from 01 to 24. Maximum Emergency Load: Enter the upper demand limit that you do not wish to exceed when the emergency generator is running. Start Shedding at: Enter the percent of maximum load at which you want to start shedding loads. Start restoring at: Enter the percent of maximum load at which you want to start restoring loads which have been shed. Enable coupling switch: In installations where there are two transformers and/or two emergency generators, a coupling switch can be used to connect both loads to one source in case the other source fails. Number of normal steps: The number of steps (levels) which you will allow to be shed under normal conditions. Number of emergency steps: The number of steps (levels) which you will allow to be shed when the emergency generator is running.

Normal:

Soft start begin level: 0 to the number of normal steps set

above, up to 10; if 8 normal steps are conﬁgured, for example, the upper limit of this entry is 8) This entry speciﬁes the level down to which loads will be turned on when the emergency generator starts. A level will be added each minute unless the speciﬁed emergency load for shedding to start is reached. Couple begin level: [Visible when coupling switch = yes] Emergency generator control - Enter the upper demand limit you do not wish to exceed for the given hour of the day under normal operating conditions (when using normal power). There is one ﬁeld for each hour of the day, from 00 to 23. This screen has two pages in order to list all the hours of the day.

Emergency:

Soft start begin level: [Emergency generator control] 0 to the

number of emergency steps set above, up to 10; (if 8 emergency steps are conﬁgured, for example, the upper limit of this entry is 8) This entry speciﬁes the level down to which loads will be turned on when the emergency generator starts. A level will be added each minute unless the speciﬁed emergency load for shedding to start is reached. Coupling begin level: [Emergency generator control] Enter the upper demand limit you do not wish to exceed for the given hour of the day under normal operating conditions (when using normal power). There is one ﬁeld for each hour of the day, from 00 to 23. This screen has two pages in order to list all the hours of the day.

Note about soft starts

The eﬀect of a soft start is to slowly add load to the generator after it starts. If, for instance, soft start begin level is set to 6, when the generator starts only refrigeration loads and loads assigned level 7 through 11 will be on. After one minute, if the load is below the “start shedding at” percentage of maximum emergency load, level 6 will be turned on. After another minute, the same decision will be made for level 5, and so on down to level one. If at any time the load reaches the “start shedding at” percentage, load shedding will begin again until the system reaches the “start restoring at” percentage.

DEMAND LIMITING TAB (see dedicated section on Demand Limiting)

User Guide | AK-System Manager, AK-SM 800 Series

ADDRESSES

ConﬁgurationControlEnergyAddresses

After the relevant Energy control questions have been conﬁgured, appropriate AK I/O addresses need to be set for the pulse meter input. The address input corresponds to the Board & Point address of the AK I/O module - only use module type AK-XM 107A for pulse meter inputs. Navigate to the Addresses Tab (Demand limiting will be shown in later section). Enter appropriate Board & Point location for the pulse input, under the Sensors tab (as shown below).

Enter custom name for pulse input

Enter unique Board & Point address. This input address should have the pulse input (via the power meter) connected

Any Emergency or Coupling Switch (deﬁned in meter setup) will require address conﬁguration.

Add these relevant address’s via the On/Oﬀ Input tab

Conﬁguration  Control  ENERGY [Danfoss Supported Power meter]

As previously described, the AK-SM oﬀers communication support to the WattNode +, Veris and Carlo Gavazzi EM24 power meters. These meters oﬀer increased parameters that can be viewed and logged in the AK-SM.

Note- due to diﬀering baud rate speciﬁcations the Carlo Gavazzi power meter should not be connected on the MODBUS channel if an existing network of Danfoss EKC modbus devices is established.

• WattNode ® + (Continental Control Systems) meter requires

LonWorks® FTT10 interface - Use Danfoss (part #TP78-02) TP78 to FTT10 network bridge to allow correct communications .

• WattNode ®+ MODBUS (Continental Control Systems) meter,

connects over the AK-SM modbus network

• Carlo Gavazzi EM24 supported meters have built in MODBUS

communications - connect directly to the AK-SM MODBUS port.

• Veris EH35/36 (Veris Industries ®) MODBUS energy meters

MODBUS Port on AK-SM

WattNode Plus (MODBUS power Meters)

The Wattnode modbus power meter (Danfoss code 080Z2146) is a device which is compatible with other approved modbus devices on the AK-SM 800 network.

The following steps must be followed to ensure correct scan and communications

Step 1: Ensure all devices on the modbus network are connected and have a valid and unique network address. Via the Conﬁguration / Network Nodes screen, perform a network scan, enabling the MODBUS-RS485 - Ensure SLV/ECFan is set to NO.

Note: The WattNode MODBUS meter (080Z2146) has the ability to run at 38400 or 19200 baud rates. Out of the box the meter is set to 38400. If there are no SLV devices on the network, perform a network scan without selecting the SLV options. This will allow the AK-SM 800 to scan at the same baud rate and thus the meter will be detected.

If you have SLV devices on the same ﬁeld bus as the meter you need to ﬁrst communicate with the meter at 38400, then once scanned you select the SLV option to ‘yes’ and re-scan. This will then set the meter to the slower rate of 19200, the same as the SLV, thus making them compatible on the same ﬁeld bus.

User Guide | AK-System Manager, AK-SM 800 Series

Carlo Gavazzi ® power meter conﬁguration (used in junction with RS485 AK-SM Model)

The following section describes the required steps to connect & conﬁgure the Carlo Gavazzi EM24xx meter over a modbus network connection.

Before any conﬁguration can take place, ensure the meter is securely wired, has a valid network address (diﬀerent from any other nodes on the ‘Controller’ network) and has a baud rate set to 9600- consult the meter manual for speciﬁc information on how to set the network address & baud rate. The data format is 1 start bit, 8 data bit, no parity and 1 stop bit.

Once set, ensure correct interconnection to the RS485 modbus port on the AK-SM.

(1) To avoid errors due to the signal reﬂections or line coupling, it is necessary to terminate the bus at the beginning and at the end (inserting a 120 ohm 1/2W 5% resistor between line B and A in the last instrument and in the Host interface).

(2) The network termination is necessary even in case of point-topoint connection and/or of short distances.

(3) For connections longer than 1200m a signal repeater is necessar y.

Once all communication wiring has been set, perform a network scan- details of how to perform network scans can be seen in the Network Nodes Section of this user guide. Ensure MODBUS channel is checked in the Node Overview page.

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). The physical connection to the MODBUS network should keep the polarity (+ terminal should be to the + terminal on the Wattnode)

Name: Enter custom description for meter Amperage: Select the amperage of the CT’s connected to the

Wattno de +.

Collect History: Select yes to collect history from this meter Power Update: Interval to which power is measured. Energy Update: The interval over which energy (the integral of

power over time) is calculated. Reactive Update: The interval over which reactive components are recalculated. Demand Period: The interval over which demand is calculated. Demand is deﬁned as average power over a speciﬁed time interval. Demand Subintervals: The # of divisions of the demand period used when calculating a “rolling demand” using a “sliding window.”

After the relevant Energy control questions have been conﬁgured, the meter must have the address correctly conﬁgured. To add the WattNode + modbus meter to the AK-SM network, ensure all network wiring is in place and that power has been applied to the WattNode + meter. Navigate to the addresses tab and then enter the same address that is already set in the meter. Perform a network scan to bring the WattNode + meter on line.

Using the drop down list, the WattNode +

meter has been selected.

Select the address tab to enter the address which has been

assigned in the Wattnode meter (bit switches)

Remember to correctly wire and use the appropriate

modbus port on the AK-SM.

User Guide | AK-System Manager, AK-SM 800 Series

Energy Measurement / Load shed

Feature Introduction

A new feature introduced in SM800 version 08.053 and above allows the measurement and subsequent load shedding of electrical loads. This feature allows the consideration of tariﬀ data, which can be then used to load shed equipment associated with a digital input. The use of Danfoss AK-IO modules is required for this feature.

Feature highlights

• Measuring period synchronization

• 3 Tariﬀs in kW (High Tariﬀ, Normal Tariﬀ, Strong Tariﬀ)

• Scale factor for current and voltage transformers

• Pulse / unit

Load shed based on

• Start and stop shed borders

• Shed level

• Min OFF, Pre and Post delay in minutes

• Maximum OFF in seconds

Additional features

• Preset of counters

• Self-synchronization possibility

• Alarm on load shed limit

• Neutral zone in period

• Reset for average, value yesterday, value last week, kWh, kW or

all in one go

Conﬁguration

Follow the guidelines in this section in order to conﬁgure energy measurement and load shed Go to Conﬁguration  Control Change the number of meters (max. 80)

Go to Conﬁguration  ControlEnergy Select Pulse / kW

Go to Tab Setup Select Pulse / unit Give counter a name and ﬁll in all appropriate details

Self sync Period.

In case the external contact in not working properly, SM800 will synchronize the measuring period internally

Self sync Timeout

If the last time sync is not a self sync timeout, the SM800 will wait for xx sec, before it will synchronize the measuring period internally

Type of metering

Conventional way is unit/pulse. The new way is pulse/unit

Sync.mode

Special: Measuring period synchs on tariﬀ change Normal: Tariﬀ changes after external synch

Pulse/unit

Pulse meter constant

Scale factor

Factor, to adapt the pulse meter constant to current and/or voltage transformers.

Preset counter

Set SM800 kWh to the value of the utility meter. Clear counter will reset the value.

Collect history

Enable SM800 to collect data for consumption view from this particular meter

Use unit for demand limitation

Enable SM800 to use this (and only this) meter for load shed.

User Guide | AK-System Manager, AK-SM 800 Series

Start shedding at

SM800 is constantly calculating the energy which is allowed until the rest of the period without the risk to pass the max. limit. In this example the load shed starts if 90% of the max value is reached

Start restoring at

SM800 is constantly calculating the energy which is allowed until the rest of the period without the risk to pass the max. limit. If the energy consumption is decreasing and the system is satisﬁed with the calculation the restoring of the levels starts. In this example the restoring starts if the consumption falls below 85% of the max value.

Alarm if above

If the system is passing above the limit an alarm will be created. In this example the alarm will be send out if the limit is 50% above the max value.

Maximum level

The system can handle max 4 levels (priorities) for load shed

Tariﬀ limit HT/NT/ST

Maximum value in kW

Neutral time

Time in sec. for the beginning of a period where load shed is inactive

Level time

Time how long the calculation stays in a level before it goes to next level

Period Peak duration

Basis time for calculation on the peak

Addressing:

Go to Tab Addresses and On/Oﬀ Inputs to ﬁnd the addresses for synch and tariﬀs. NT does not need an address because it is NT, if it is not HT. If ST is active it doesn’t matter which status NT or HT has.

User Guide | AK-System Manager, AK-SM 800 Series

Detail  Energy

Under detail  energy the Sm8xx supports following information to the user:

1. Status

a. total consumption since start b. Current power in kW c. Peak power in kW

2. Settings (example shows pulse meter)

a. Name b. Window size for demand limit c. Pulse rate in Wh/pulse d. Collect history (yes or no) e. Use this meter for demand limitation

3.Service

a. Reset kWh b. Reset peak

4. Consumption (to present consumption and peak from history)

a. View total, monthly, weekly or daily values b. Select time frame

i. Total from/to ii. previous month and next month iii. previous week and next week

iv. previous day and next day In case of total view it is possible to delete history for this particular meter

User Guide | AK-System Manager, AK-SM 800 Series

Enterprise Load Shed (via Danfoss EDS Service)

Your AK-SM has built in functionality to facilitate enterprise demand limiting, via the Danfoss Electronic Delivered Services (EDS) oﬀering. Contact your local Danofss sales rep for more details

The term Load Shed in the AK-SM is used to describe a function that allows an enterprise connection to schedule and actively turn oﬀ / on conﬁgured electrical loads for a period of time.

Once locally conﬁgured, your AK-SM can be fully managed via the Danfoss EDS (Electronic Delivered Services). Once logged on, the demand response enterprise dashboard allows retailers to participate in demand response incentive programs via a single, web-based portal. All site conﬁguration, job scheduling, execution, status monitoring, and meter data extraction is completed from one web application.

Why Demand Response? Participate in demand response programs. Quickly curtail energy usage across your enterprise. Single web portal for all conﬁguration, execution, and utility reporting. For further details, contact your local Danfoss representative.

Minimum requirements: AK-SM version V08_001 or higher of ﬁrmware. A connection between customer stores and Danfoss EDS –via VPN connection.

Conﬁguration

This section will focus on the local (AK-SM) conﬁguration, and assumes some HVAC and Lighting have been previously conﬁgured. The available load Shed Points (HVAC, Lighting Zones, Misc) are conﬁgured within the AK-SM. From the Conﬁguration/Control/ Energy/Demand Response screen select the Load Shed tab. Any previously conﬁgured HVAC, Lighting or Misc Relay will be visible.

The example below shows the HVAC and Lighting sections. The two HVAC units are shown and a load shed index of ‘4’ has been entered. The available index range is from 0-4 and once set in the AK-SM is used in the enterprise service to dictate what level of load shed the scheduled job (via the enterprise) will execute. The Lighting tab has been set to load shed level index 3.

Results

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.

In our example above, if the enterprise user wishes to reduce maximum load for a period of time, a job would be created in the enterprise dashboard and the index ‘4’ would be issued to all selected AK-SM units across the customers estate. The eﬀect is that ALL applications that have an index of 4 and below will turn oﬀ for that period of time (and re-start after any post delays). The result in our example here is that all HVAC and lighting will switch oﬀ. Another example would be using the load shed index of 3. This would then only shut down ALL applications set at 3 and below. In this example that would be the Lighting, the HVAC would continue to operate.

Enter load shed index (0-4)

The power rating slot can be used as a note to what the load is. This has no functional purpose except for notiﬁcation purposes

Enter a required post delay. This ensures once the load shed event has ﬁnished not all system loads will start up at the same time, which could result in electrical overload conditions

User Guide | AK-System Manager, AK-SM 800 Series

Demand Limiting

The AK-SM Demand Limiting function is based on a designated utility power meter. Only one meter can be assigned Demand limiting, even though up to 80 meters can be connected to the AK-SM. Once a meter has been selected, the Demand Limit function can be applied against any Lighting and HVAC load.

Utility demand is monitored every minute. Every minute, the most recent n minutes are averaged (where n is the width of the conﬁgured window, 15, 20, or 30 minutes deﬁned in the meter set up window ConﬁgurationControlEnergy). If the average reaches the conﬁgured “start shedding at” percentage of conﬁgured maximum demand, Step one (all lighting zones and HVAC units assigned to level 1) will be turned oﬀ. After one minute, when the average is calculated again, if the demand is still above the conﬁgured percentage of conﬁgured maximum demand, level two will be shed, and so on. When demand has dropped to the “start restoring at” level, the last level shed will be restored, and then the others in descending order, so that the last load restored will be the one which was shed ﬁrst. Restoration will continue as long as the load remains below the “start shedding at” percentage.

If both normal and emergency load limits are to be established, the relative on/oﬀ input for the automatic transfer switch must be wired and conﬁgured. In addition, if the site has a coupling switch, you must wire and conﬁgure an on/oﬀ input for the coupling switch.

Priority Levels (normal conditions)

Levels are shed in ascending order: level 1, then level 2, and so on up to the highest level conﬁgured, limited by the number of steps allowed. Levels above the number of steps conﬁgured will not be shed unless the meter conﬁguration is changed (ConﬁgurationControlEnergy meter setup). Since there are only up to ten steps, loads assigned level 11 will never be shed. It is recommended that loads which are not to be shed are left at level 11, the default value.

Emergency level The priority for shedding when the emergency generator is running. If a load is assigned level 0 (zero) for either normal or emergency conditions, the load will never come on under those conditions.

ConﬁgurationControlEnergy Demand Limiting

As previously mentioned the Demand Limiting function is applied against HVAC and Lighting loads. This example assumes that both HVAC and lighting have been deﬁned in the AK-SM and that a meter has been selected for Demand Limiting. Navigate to the Demand Limiting tab. The HVAC and lighting systems will be seen in this page, allowing the conﬁguration of shed levels.

Enter the required Shed levels & Emergency levels for the HVAC & Lighting systems.

User Guide | AK-System Manager, AK-SM 800 Series

Boolean Logic / Calculations

Calculations

Miscellaneous calculations are used to create custom logic. The AK-SM has the capacity for a total of 96 calculations which can be used to ‘drive’ miscellaneous logic where special applications are required. There are several ways to formulate calculations for a given requirement, but testing as you go is a ‘must’ in order to conﬁrm desired results. A calculated point created here can be used anywhere a board & point address can be referenced. The calculated points processor is a true boolean processor, with a full complement of argument types and operators. Every conﬁgured calculated point will be listed. The ﬁelds are as follows:

Example of Calculations Tab

After adding a new calculation, a default screen will be shown (similar to the example below). The screen is divided into three

areas, which from top to bottom are the following:

Heading area The heading of the screen tells what type and style of calculation point will be created.

Data deﬁnitions area This area contains information that identiﬁes points that will be used in the logical statements in the next area, and the current value of each. The area by default has lines for two deﬁnitions, but it can be enlarged by double clicking the ***Press to insert new line ****. You will see this done in a few pages during the presentation of our ﬁrst example.

New Calc When ﬁrst entering the calculations screen a line called New Calc is shown. To conﬁgure a new point, double click this ﬁeld.

Description

The type of point (OI or SI). If an SI, the description will usually include the units.

Point

(Ca-01 to Ca-96) The name of the calculated point. Value The current value or state of the point. This will be on or oﬀ for OI points, and a value for SI points. Status (Online, Oﬄine, Error)

Double click to add new calculation

Rules area This is the area that will contain the logical statements that determine whether the point is on or oﬀ (OI) or the value (SI) that is used. At the bottom of the area is the current value of the result.

Heading

Data Deﬁnitions

Rules Area

‘Else’ line

User Guide | AK-System Manager, AK-SM 800 Series

Simple Calculation example:

Calculate the average of 3 diﬀerent temperature sensors. Show this resulting average value in a miscellaneous sensor driven by the calculation

1. Creating the miscellaneous points for this calculation- Sensor inputs: Create 3 sensor inputs (the 3rd is used to display the average

through the calculation).

User Guide | AK-System Manager, AK-SM 800 Series

Chapter 7: Device support

Danfoss AKC Support (Via AK-PI 200)

The following section describes the conﬁguration of the Protocol Interface -200 (PI-200) in the System Manager. For detailed PI-200 installation instructions and please refer to the PI-200 manual (RS8EX202). The AK-PI 200 is a network device allowing legacy AKC and AKL type controllers to be operated via your System Manager. Any connected DANBUSS controller will be presented similarly to other refrigeration controllers (i.e. LON RS 485 / MODBUS devices).

Note: PI-200 must have ﬁrmware 2.25 installed to ensure correct operation and communication with AKC devices and AK-SM 800.

Important limitations

Up to 60 AKC controllers can be connected to a single AK-PI 200. If there are more than 60 controllers, two AK-PI 200 units must be used. Up to four AK-PI 200 units can be connected to a single System Manager.

The link between the System Manager and the AK-PI 200 is via a TCP/IP. Ensure when connecting your AK-PI200 to the network be sure to use a router or switch, not a network hub. The AK-PI 200 will not function correctly if network hubs are used.

Preparation / Addressing

Both the System Manager and the AK-PI 200 must have valid addressing set before any conﬁguration can take place. Consider the following steps when setting up your System Manager and PI-20 0.

1. Ensure System Manager has a valid IP address and is connected

on the LAN.

2. Use AK-Service Tool and make direct connection to the PI-200,

under IP setup check correct IP address mode (Dynamic/Static), Port Number (default 1041 in PI-200 and System Manager).

3. Set physical Danbuss address for PI-200 by using the rotary

address switches on the PI-200. A unique address must be assigned for PI-200, with no duplicate with generic devices on any ﬁeld bus’.

PI-200 conﬁguration in System Manager (via web wizard)

The following text will describe the workﬂow when adding PI-200(s) to your System Manager, including scanning and mapping of AKC devices.

Note: Using the layout wizard assumes no other Refrigeration conﬁguration has been previously performed. Using the wizard on a pre-existing conﬁguration may result in loss of conﬁguration, use manual method described in this user guide.

Under the ‘Conﬁguration’ tab, locate the Refrigeration ‘Layout’ wizard, and start the process, under the network screen select the PI-200 to enabled.

The next screen shows details of the PI-200. If multiple PI-200 units are installed you should select only the PI units which will be associated with the particular System manager.

User Guide | AK-System Manager, AK-SM 800 Series

Follow the remaining wizard screens to format device names and map case to pack controls to form suction ‘groups’.

PI-200 conﬁguration in System Manager (via manual conﬁguration)

If there are existing devices already on your System Manager you may want to manually add the PI-200 / AKC via the manual method. This section covers how to scan PI-200 and conﬁgure the AKC nodes.

1. Via the Conﬁguration Network Nodes tab, select Channel

PI-200 (checking correct port address, as previously described)

2. Initiate a network scan by selecting the ‘Press for complete

rescan’ line entry

3. Under the Scan Status tab navigate to the PI-200 sub tab, here

any detected PI-200 units will be shown and can be selected for use with the System Manager.

4. Under the ‘PI-200 Status’ sub tab you can view the address,

version, status, signal quality and number of devices under each PI-200.

5. Once the above process is complete the next step is to deﬁne

the number of devices you wish to add to the System Manager. Under the Conﬁguration  Control tab enter ‘Number of racks/packs’ and select the relevant Pack controller. Tip! Use the ‘show only scanned devices’ line to only show only the controllers that the System Manager has previously scanned, this will reduce the list of available devices to select from.

6. Navigate to the Refrigeration  Circuits tab to set which case

type is to be used

The remaining conﬁguration tasks are already described earlier sections of this user guide.

User Guide | AK-System Manager, AK-SM 800 Series

Presentation of the AKC devices

Once connected to the PI-200 and conﬁgured, the AKC devices will be represented in the same format as any other refrigeration device. The AKC devices will be shown in the main screen dashboard under Refrigeration. Selecting a device will then show the device detail screen, where (if authorized) the user can view and make setpoint changes.

Note! The response times over a Danbuss network and via the PI-200 is somewhat slower than traditional LonWorks networking, any delay in retrieving data is not an indication of system fault, but due to Danbuss network performance.

Monitoring Points

Your AK-SM oﬀers a simple yet eﬀective way to display temperature sensors that also include dedicated alarming and inhibiting functions. The following section describes the conﬁguration of monitoring points and their associated functions.

Adding monitoring points manually

From the Conﬁguration  Control menu select the required amount of circuits, then navigate to the Refrigeration  Circuits page and under type, select ‘Monitoring’. The selection of ‘Monitoring’ in the drop down selection list oﬀers the user a means to capture, record and display sensors and to present them in the ‘Misc’ section of the home dashboard screen. This method of sensor input is in addition to the miscellaneous sensor inputs used elsewhere in the AK-SM system and can be used to monitor board & point inputs or sensors from connected network controllers (i.e. AKC, AK2, EKC).

Once set to Monitoring navigate to the Setup tab, using the drop down menu to select the recently deﬁned monitoring points.

Danfoss AK-SM 800 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual