M2 B2 Manual

Monitoring, Control and Alarm Systemm2

Manual

Refrigeration and Air Conditioning Controls

R E F R I G E R A T I O N A N D A I R C O N D I T I O N I N G

2 Manual RS.8A.N4.02 © Danfoss 6-2002 m2 Version B2.2

Contents

Introduction 4

Safety 4

Alarms 5Security 5

System Overview 5

Battery Backup 5External Connections 5Alarm Mute Key 6

Key Operation 6

Technical data 6

Menu Key 7Left Arrow Key 7Print Key 7Up Arrow Key 7Down Arrow Key 7Right Arrow Key 7Enter Key 8Multiple Key Functions 8Operator/Equipment Safety 8

Operation via the Key Pad 9

Point Overview 9Point Detail 9Inhibiting a Point 10Point Offset 10Single Point Log Printout 10Graphics 11Pulsed Input 11Scan Mode 12Alarm Mode 12Muting and Clearing an Alarm 12Main Menu 12No Scan 12Point Detail Scan 13Alarm History 13Point Alarm List 13Event History 13Print Menu 13Alarm History 13Software Version 14Setting the System Time and Date 14Daylight Saving 15Setup Information 15

Configuring the System via the Key Pad 16

Entering Characters in Edit Fields 16Numeric Only Fields 16Diacritic Entry 16Setup Menu 16Entering the Passcode 16Setting Installation Name 16Setting Temperature Units 17Setting Date Format 17Selecting a Point Number 17Name 17Setting the Point Type 17Setting the Units of Measurement 18Defrost Interlock Point 18Setting the Alarm Settings 18Setting the Alarm Action 18

Setting the Log Action 19Setting the Graph Action 19Point Setup (Screen 2) 19Input Source 19Remote Addr 19Input Type 20Input Number 20Y Axis 20Y Base 204 - 20mA Inputs 20Pulsed Input Setup 20Mode 20Pls/kWh 20Export 21Pulsed Input Installation Notes 21Resolution 21Defrost Synchronisation 21Password Setup 22Point Offset Passcode Protection 22Setting the Log/Chart Frequency 22Alarm Action Setup 23Output Name 23Action n 23Delay 24Duration 24Clear On 24Modem Dialout Options 24Dialout 25Call Type 25Number 25Pager Info 26Defining the Probe Curves 26Setting up a Curve Table 274-20mA Set-up 27Modem Configuration 28Baud Rate 28Dial 28Answer 28Language Selection 28

Logging EKC Controllers Onto m2 System 29

m2 Comms with EKC 201/301 Controllers 30


EKC 201/301 Controller Point Detail Screen 30

Configuring the EKC201/301 Controller via the KeyPad 31

Controller Point Setup (Screen 2) 31Alarm History 31Controller Point Setup 31

m2 Comms with EKC 331 Capacity Controller 33


EKC 331 Controller Point Detail Screen 33

Configuring the EKC331 Controller via the Key Pad34

Controller Point Setup 34Controller Point Setup (Screen 2) 34Alarm History 34

Remote Controller Parameters 35

m2 Version B2.2 Manual RS.8A.N4.02 © Danfoss 6-2002 3

Configuring The m2-BBm or m2+ Via The Key Pad35

Type 35Input Source 35Remote Addr 35Input Type 35Input Number 35

Maintenance 36

Cleaning 36

Full Character Set 36

Service 36

Alphanumeric Character Set 36

Appendix A 37

'AKM' Call Type 37


Introduction

The m2 has been developed to provide a comprehensive,yet simple-to-use means of monitoring, recording andcontrol refrigeration temperatures and other aspects ofrefrigeration plant operation. It is intended for use in smallto medium food storage operations (for example a smallsupermarket) where compliance with the Food HygieneRegulations is to be demonstrated. A variety of ancillarycontrol equipment may be in use in such installations, eachwith its own specific requirements in terms of interfacingand monitoring, and m2 can be configured to work in suchan environment.

Designed for operational simplicity, the system onceconfigured can display the status of each input point in turnwith the occurrence of any fault condition indicatedimmediately by means of audible and visual alarms.Further details on any aspect of the operation of theinstallation are available via the key pad. In addition thereis the ability for authorised personnel to make adjustmentsto the control and/or monitoring settings. Historical data isstored within the system and may be viewed or printed on aregular basis. The data is accessible both on and off-sitevia the external modem connection and alarm calls can alsobe generated if required.

The following sections provide a description of m2, and theremainder of the manual provides further detail on theconfiguration, operation, and maintenance of the system. Itis recommended that the appropriate part(s) are studiedbefore any attempt is made to use the system.

ValidityThis manual was made in Febuary 2002 and applies to m2 -Dual Comms with software version B2.2.

Safety

To prevent accidents arising from improper handling,installation or operation, please read this manual carefully.


System Overview The m2 consists of a central monitoring unit which can monitor up to 16local sensors or inputs which are usually located adjacent to theequipment in question for example specific refrigerated areas (chillercabinets, freezers, cold rooms), plant rooms or gas detectors, up to 60EKC 201/301/331 controllers and 32 standard RS485 connections (1281/4 loads) via the third party bus. The precise layout and configurationof these sensors and controllers is specific to each installation, and it isnot necessary for a typical operator to be familiar with the operation ofthe sensors.

The m2 provides audio and visual alarms whenever an input exceedsits pre-set alarm levels. For night operation, the system can be pre-setto dial-out using a digital dialler or via a modem whenever an alarmoccurs.

Security is provided by having passcode access to the protectedsettings. In the case of mains failure, an alarm is triggered after a delay.The system can be pre-set to dial-out to an external telephone number ifrequired.The m2 will always FAIL SAFE (except for modem dailout).

The unit is provided with battery backup to continue historical loggingduring a power failure. In this case, the display backlight will switch offbut the display will keep running. When an alarm occurs, the alarmsiren and the red flashing backlight will still operate. The backlight willflash red, once every 5 seconds until the alarm is muted.

Note: When a mains failure lasts longer than 1 hour, the unit will ceasehistorical logging and stop alarm checking. However, all existinghistorical readings remain in memory and are not lost.

The m2 can monitor up to a maximum of 99 points, including up to 60EKC 201/301/331 controllers, and or an additional 32 standard RS485connections (128 1/4 loads) via the third party protocol.

If hard copy details of the monitor readings is required, a parallel printerport is provided which can be connected to an Epson compatibleparallel printer.

An RS232 serial interface via a 9-way ‘D’ type connector is providedwhich allows either a directly connected IBM compatible PersonalComputer (PC) or a Minitel to be connected for operational andconfiguration purposes or to allow connection to a modem.

If a PC is connected either directly or via the modem, the alarms andmonitor readings can be read and the set-up details can be changedremotely, using Danfoss Central Station software (refer to manualRS.8C.G for more information).

This manual will simply cover the configuration and use of the m2 inmonitoring and controlling a refrigeration installation.

Alarms

Security

Battery Backup

External Connections


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1. Only NTC's or PT1000's can be used at a time.

2. The data collection capacity depends on the amount of memory installed inthe m2 unit.

3. If a power failure lasts longer than one hour, the monitoring unit will stop thecollection of data and the alarm monitoring. Already collected data will remainintact.

4. At time of printing the following languages are yet to be completed: Slovenian,Portuguese and Malaysian.

The functions of the keys on the front panel of the m2 are described inthe following sections.

Main Functions

Use this key to acknowledge or reset the alarm and mute the siren. Thered ‘ALARM’ backlight will stop flashing and remain steady. Any ‘HIGH’or ‘LOW’ alarm indication will also stop scrolling and remain steady.

Secondary Function

Operates as a shift key to give extended functions with other keys.

Technical data

m2

Key Operation

Alarm Mute Key


Menu Key

Print Key

Up Arrow Key

Down Arrow Key

Left Arrow Key

Right Arrow Key

Main Functions

Use this key to select the main or previous menu from any other screen.

Secondary Functions

Cancels input data without storing in edit fields ('ESC' key).

Main Functions

Use this key to select the Print Menu, except when in Alarm/Eventhistory where it will directly print out a list.

Secondary Functions

Changes the Case/Sign in edit fields.

Main Functions

Use this key to scroll the highlight upwards on a menu screen. If thehighlight is positioned on the first line of a menu, pressing this key willforce the highlight to the bottom of the menu. In addition, when acharacter entry field has been selected, this key is used to increment thedisplayed value in the entry field.

Secondary Functions

Moves through the Point Detail screens, moves the cursor on theOverview screen and zooms in on the Graph screen.

Main Functions

Use this key to scroll the highlight downwards on a menu screen. If thehighlight is positioned on the last line of a menu, pressing this key willforce the highlight to the top of the menu. In addition, when a characterentry field has been selected, this key is used to decrement thedisplayed value in the entry field.

Secondary Functions

Moves through the Point Detail screens, moves the cursor on theOverview screen and zooms out on the Graph screen.

Main Functions

Use this key to move the cursor to the left when a character entry fieldhas been selected. In addition when an option has more than onescreen associated with it (e.g. Point Detail), use this key to display theprevious screen.

Secondary Functions

Moves the cursor on the Overview screen and moves the Graph Cursor.

Main Functions

Use this key to move the cursor to the right when a character entry fieldhas been selected. In addition when an option has more than onescreen associated with it (e.g. Point Detail), use this key to display thenext screen.

Secondary Functions

Moves the cursor on the Overview screen and moves the Graph cursor.


Enter Key

Multiple Key Functions

Operator/Equipment Safety

+

+

OR

+

+

Main Functions

Use this key to select an item from a menu or to enter a value and movethe cursor to the next entry field ('↵' key).

Secondary Functions

Inhibits points, adds the Graph cursor to the Graph screen and selectspoints on the Overview screen.

Backspace in edit fields.

Adjusts Screen Contrast.

Starts or Stops the Scanning Mode on the Point Detail orOverview screen.

Diacritics (accented characters editing mode).orSort and display alarms by point when in Point DetailScreen.

This equipment is safe to operate as long as the instructions in thismanual are followed. High voltages are present inside the m2 and thefront access panel should not be opened while power is applied to thesystem.Ensure that mains power is disconnected before any maintenance iscarried out. It is assumed that operators of the system will haveadequate training on its use. Danfoss accept no liability for loss ordamage caused by misuse of the equipment.


Operation via the Key Pad

Point Overview To view the status of all the points at the same time, select the PointOverview option from the Main Menu. The Point Overview screen isdisplayed.This screen shows each activated point as one of thefollowing icons, depending on the point condition.

- active point in normal condition - an inhibited point

- active point in an alarm condition - a point in defrost

- a point in defrost pulldown

Note: If there are more than 20 points in the system extra lines of pointswill be displayed underneath the first 20 points (up to a maximum of 99points).

To select a point, the cursor box can be positioned around a pointsymbol by using the ‘ ‘ or ‘ ‘ keys. As each point is selected thepoint number and its current status/temperature is displayed in thewindow on the right hand side of the screen.When the Overview Scan mode is selected, the cursor will cycle roundall the activated points in turn, pausing for 3 seconds on each one sothat the current status may be read.

To display more details of a particular point, position the cursor boxaround the point required and press ‘�’. The Point Detail screen will bedisplayed.

Note: If a point has a local offset applied to it, this will be indicated by

the presence of the offset icon at the left of the Point Readoutwindow.

To continuously view the status of a single point, either select the PointDetail option from the Main Menu or select a point on the PointOverview and press ‘�’. The Point Detail screen is displayed.Use the ‘ ’ key to select the next point or the ‘ ’ key to select theprevious point. The point number is displayed in the upper left-handcorner of the screen and the current status is displayed in large text inthe centre of the screen. The text and symbols displayed in the windowon the right hand side of the screen are as follows:

Indicates the upper alarm limit setting. When the of

the symbol is scrolling, it indicates that the upper alarmlimit has been exceeded.

Indicates the alarm delay in minutes. When the hand of

the clock rotates, it indicates that the point is in the alarmcondition and the delay has not yet expired.

Indicates the lower alarm limit setting. When the part

of the symbol is scrolling, it indicates that the lower alarmlimit has been exceeded.

Indicates the input point type.

this indicates whether the point has been setup for 'Local'

or 'Remote' alarms.

- Local - alarms are raised based on

m2 alarm settings.

Point Detail


Inhibiting a Point

Point Offset

- Remote - alarms are raised based on

controller alarm settings.

This area also displays 'inhibit', 'defrost'and 'pulldown' icons, if the point hasbeen setup for 'Local'.

- an inhibited point.

- a point in inhibit pulldown.

- a point in defrost.

- a point in defrost pulldown.

Note: If a point has a local offset applied to it, this will be indicated by

the presence of the offset icon located under the units indicator.When the Detail Scan mode is selected, the display will cycle throughall the activated points in turn pausing for 3 seconds on each one sothat the current status may be read.Press either the ‘ ’ key or the ‘ ’ key to return to the Main Menu orthe ‘ ’ key to display the historical graph data.

To inhibit a point so that it cannot create an alarm, select the requiredpoint and press ‘�’. The Confirm Inhibit Yes/No message is displayed.Use the ‘ ’ or ‘ ’ key to toggle the answer and press ‘�’. When apoint is inhibited a symbol is displayed alongside the point type. Touninhibit a point repeat the operation.

If the alarm condition is exceeded on an inhibited point (i.e. Pull-down),then the animated pull-down arrows will be displayed next to the inhibitsymbol .The inhibit function can be password protected. This can be configuredby accessing the 'Passcode Setup' screen.

Any points on the m2 can have an offset applied to the displayedreadings to compensate for cable runs loss etc. These offsets are pointspecific and may only be defined from the m2 keypad, although theirvalue is readable when accessing the unit remotely. Under normalcircumstances these offsets (if required) will be entered at installationand should only be modified by Danfoss personnel. Any point which

has an offset active will display the offset icon on both the PointDetail and Point Overview screens.

In the Point Detail screen, pressing the ‘ ’ key displays the Print

Range option box. Use the ‘ ’, ‘ ’, ‘ ’ and ‘ ’ keys to enter therequired value and the ‘↵’ key to move through each field. Press the

‘ ’ key and the Printing in Operation screen is displayed and the data

is sent to the printer.

Single Point Log Printout


The format of the printout will be as shown:

To display an instant graph of the currently selected point, from thePoint Detail screen, press the ‘ ’ key. The chart is then displayed.The default time scale for the data displayed depends on the samplerate set. For example, a sample rate of 15 minutes will give a defaulttime scale of 1 day.

To view historic data, press the ‘ ’ or ‘ ’ keys to page the graphicscreens (with no overlap). Pressing the ‘ ’ or ' ' keys scroll througheach of the points displaying the data graphs.

Press the ‘↵’ to bring up the cursor, this can then be moved along left orright displaying the reading and time for the cursor position in the topright hand corner of the screen. In addition the screen will page left orright when the cursor reaches the end of the display.To zoom in or out press the ' ' or ' ' keys, this will display thefollowing time spans:

45 mins 12 hours 4 weeks1.5 hours 1 day 12 weeks3 hours 3.5 days 11 months6 hours 1 week

To exit the zoom facility, remove the graph cursor by pressing '↵' again.Pressing the ' ' key will then take you back to the Point Detail screen.

When a graph is displayed on the screen, pressing the ' ' key dumps

the graph to a directly connected printer (cursor must be removed first).

A pulsed input function is available for accepting pulses from a powermeter. The pulsed input is displayed as shown which includes twovalues. The large value is the ‘Rate’ and indicates either current kWusage (Const) once per minute or the ‘Peak’ kW usage within thecurrent sample period.If the ‘Rate’ current usage is displayed, this value will vary with theactual energy consumed within the last minute. If the ‘Peak’ usage isdisplayed, this will only change if the usage in the last minute wasgreater than any other minute in the sample period - hence it will showthe highest or ‘Peak’ value. The ‘Rate’ value is stored by the m2 and willbe displayed in the graph associated with this point.

The second smaller value will show the accumulated kWh used withinthe current sample period. This value will increase over the sampleperiod then reset to zero at the end.

The ‘Pulsed Icon’ to the left of the display will change from to each time a pulse is being received.

Graphics

Pulsed Input


In normal operation if no scan mode is selected, the m2 will revert to thePoint Overview screen.When one or more alarms have been raised, the built-in siren willsound, the backlight will flash red and the point(s) in alarm will pulse. Ifa parallel printer is connected, the time, status and point details of thealarm will be printed.If the ‘ ’ key is not pressed within the programmed time setting, thedial-out relay can be programmed to automatically activate, sending asignal to the dial-out equipment/security system if it is connected.

To stop the siren sounding and the red backlight flashing, press the ‘ ’key. Check what the problem is by selecting the Point Detail screen forthe point in alarm and noting its present status and alarm settings. Thefault will need to be found and rectified before the alarm can besuccessfully cleared.If there appears to be no problem, it could be that the fault has ‘cleareditself’ (e.g. the temperature has since returned to an acceptable level).In this case, the point will stop pulsing.If there are no further faults on other points, the alarm status will becleared.

To display the Main Menu, press the ‘ ’ key (repeat if necessary). Toselect an option from the Main Menu, use the ‘ ’ or ‘ ’ key to positionthe highlight over the required option and press ‘�’ or ‘ ’. At thebottom of the menu there are two ‘ ’ symbols which indicate moreoptions.

To display these options, press the ‘ ’ key. When the highlightreaches the bottom of the screen, the menu will be scrolled upwards toreveal the extra options. Similarly, to re-display the first two options,press the ‘ ’ key. The first two options were described previously whilethe remaining options are described in the following sections.

Note: Options which have a symbol alongside them are passwordprotected.

To select a scan mode, select the Scan Mode from the Main Menu. TheScan Menu is displayed.

Use this menu to select a scan mode which will cycle the displaythrough all the active points. To select an option from the Scan Menu,use the ‘ ’ or ‘ ’ key to position the highlight over the required optionand press ‘↵’. Once an option has been selected, the Main Menu willbe re-displayed. You can then select the Point Overview or Point Detailoption as appropriate.

The Point Overview or Point Detail screen can also be set to theappropriate scan mode by displaying the relevant screen and pressingthe ‘ ’ and ‘ ’ keys together. Pressing them together againdeactivates the scan mode.

Use this option to switch off the scan mode. Once this option isselected, no scanning will be performed on either the Point Overview orPoint Detail screens. The default screen will become the PointOverview screen.

Use this option to select the scanning mode for the Point Overviewscreen. When this mode is selected, the cursor on the Point Overviewscreen will cycle round all the activated points in turn, pausing for 3seconds on each one so that the current status may be read.

Alarm Mode

Muting and Clearing an Alarm

Scan Mode

Main Menu

No Scan

Point Overview Scan


Use this option to select the scanning mode for the Point Detail screen.When this mode is selected, the display on the Point Detail screen willcycle through all the activated points in turn pausing for 3 seconds oneach one so that the current status may be read.

To display the alarm history, select the Alarm History option from theMain Menu. The Alarm List screen is displayed with the most recentalarm heading the list.

Up to 999 latest alarms can be viewed.

Each alarm is given a number from 1 to 999 (restarting at 1 after the999th) and is time and date stamped. The description shows theinformation relevant to each point. The two ‘ ’ symbols at the bottom ofthe screen indicate that the list continues. The list can be scrolled upand down using the ‘ ’ or ‘ ’ keys. Press ‘�’ to display events with thealarms.

To display the alarm history for a point, select the point detail screen,

then press the and keys together. The Alarm List screen isdisplayed listing all alarms for the selected point only.

To display the event history, select the Event History option from theMain Menu. The Event List screen is displayed with the most recentevent heading the list.

The latest 100 events stored are viewed. The list can be scrolled upand down using the ‘ ’ or ‘ ’ keys.

If a parallel printer is connected, a series of printouts can be initiated incondensed mode. To perform a print operation, select the Print Menu

option from either the Main Menu or by pressing the‘ ’ ‘key on allscreens except the Alarm/Event List screens. In either case, the PrintMenu screen is displayed.

Use this option to print the current status of all points.

Note: Only those points which have their log action set to ON will beprinted.

Use this option to print an individual graph of each of the points in turn.From the Print Menu, select the Graph of All Points option. The SelectPeriod screen will then appear. Use the ' ', ' ', ' ' and ' ' keys toenter the required value and the '↵' key to move through each field. ThePrinting in Operation screen is displayed and the data is sent to theprinter.

Note: Only those points which have their graph action set to ON will beprinted.

Use this option to print a list of all the alarms and events. The Alarm/Event List is printed showing the Alarm List followed by the Event List.

From the Print Menu, select the Alarm List option. The Select Periodscreen will then appear. Use the ' ', ' ', ' ' and ' ' keys to enter therequired value and the '↵' key to move through each field. The PrintingIn Operation screen is then displayed and the data is sent to the printer.

Each alarm is given a number from 1 to 999 (restarting at 1 after the999th) and is time and date stamped. The description shows theinformation relevant to each point.Similarly, each event is time and date stamped and the descriptionshows the information relevant to each event.

Note: This operation may take considerable time and paper.

Point Detail Scan

Print Menu

Event History

Point Alarm List

Log of All Points

Graph of Selected Points

Alarm History

Alarm History


The various codes printed in the status (St) column are defined asfollows:ok No fault presentAlm Equipment faultdEF DefrostdEP Defrost pulldown - (only shown on display)dFP Defrost pulldown - (only shown on printouts)E Equipment (status ok)Err Equipment (status alarm)Flt Comms faultHi High alarmInh InhibitLow Low alarmOff The input is offOVR Defrost overrun alarmOC Signal over rangeSC Signal under range

The various codes displayed in the printout Reason column are definedas follows:Aft.Def Alarm after defrostFault probe fault> High value alarm greater than high alarm limit< Low value alarm less than low alarm limit.

Use this option to display the units software and hardware details forreference. To return to the Main Menu, either wait 1 minute or press anykey.

To set the system time and date, select the Time / Date option from theMain Menu. The Password request is displayed. Enter your Userpasscode (the default passcode is WOODLEY or the Local passcode).

Use ‘ ’ or ‘ ’ keys to cycle through the character list to the requiredvalue and the ‘ ‘ or ‘ ‘ key to move the cursor left or right respectively.Then press ‘�’ to move onto the next field.

The system time and date are read from the internal clock. If these areincorrect amend them as appropriate.

The Start Day and End Day settings are used to indicate the start andend of trading. This allows the system to perform different operationsdepending on the time of day.

For example, the system could be set up so that during the day only anaudible alarm is activated, whereas the system would dial-out at night.Select each of the days in turn and type in or amend the times asrequired.

· Use the ‘ ’ or ‘ ’ keys to cycle through the day of theweek and the special days.

· Set the Start and End day values.

· Set the date of any Special Days (dd/mm) (5 SpecialDays maximum).

The Special Days are used to override the normal weekday start andend times.

Note: The Special Days will occur every year if they are not changed.

Software Version

Setting the System Time and Date


Setup Information

This facility is to set the automatic clock change for winter/summer time.

From the System Times Setup menu, use the ‘�’ key to highlight theDaylight Saving ‘ ’ symbol, then press the ‘ ’ key.

The Daylight Saving setup menu is then displayed. Use the ‘ ’ or ‘ ’keys to scroll through the following options:

Mode - Off - Daylight saving switched off.Auto-US - American daylight saving time

settings.Auto-EU - European daylight saving time

settings.Manual - Times and offset can be manually set.

Time - The hour at which the change will take place.

Offset - The amount in hours the clock will change.

Use this option to print out all setup information. From the Print Menu,select the Setup Information option. The Printing in Operation screen isdisplayed and the data is sent to the printer.

Daylight Saving


Configuring the System via the Key Pad

Entering Characters in Edit Fields There are two types of character sets that are used in the m2 dependingon which edit field has been selected:

Full Character SetThis is used in most of the edit fields. When the edit field has beenselected, the characters within the set can be cycled through using the‘ ’ or ‘ ’ keys. If the ‘ ’ key is pressed first, it will start at ‘A’ and goforward through the character set. If the ‘ ’ key is pressed first, it willstart at ‘z’ and go backwards through the character set.

When a character has been selected, press either ‘ ’ to move to thenext space or ‘�’ to move to the next edit field.

Alphanumeric Character SetIf the ‘ ’ key is pressed first, it will start at ‘0’ and go forward through thecharacter set. If the ‘ ’ key is pressed first, it will start at ‘z’ and gobackwards through the character set.

By pressing the ‘ ’ or ‘ ’ keys, the field is incremented ordecremented. By pressing the ‘ ’ or ‘ ’ keys you can skip across theunit fields to make entering larger numbers easier.

If your language uses Diacritics (accented characters), the m2 providesthe facility to enter these both from the local keypad and remotely via PC.This facility is language sensitive such that only Diacritics which arerelevant to the language active on the unit are available. The method ofentry is to select a base character as normal and then add the requiredaccent, e.g. in French if an ‘é’ is required the procedure is to first select‘e’ as described above, then enter Diacritic mode and select the acuteaccent ´. To enter a Diacritic mode on a suitable character, hold down

the ‘ ’ like a shift key and press the ‘ ’ key once. This will add the firstavailable accent to your character, any more which are available canthen be selected by pressing the ‘ ’ and ‘ ’ keys together. When therequired accent is displayed, simply moving on to the next characterstores this and cancels the Diacritic mode. If you move the cursor ontoan already accented character, the unit will automatically enter Diacriticmode allowing you to change the accent. Diacritic mode may be

manually cancelled by pressing the ‘ ’ and ‘ ’ once more.

To configure the system via the key pad, select the Setup Menu optionfrom the Main Menu.

To change any of the configuration information via the keypad, you mustfirst enter the correct password. The default passcode is 291. However,this may have been changed to a passcode which is site specific.

Enter in the password using the ‘ ’ or ‘ ’ keys to cycle through thecharacter list and the ‘ ’ or ‘ ’ key to move the cursor left or rightrespectively. When the password is complete, press ‘�’.

The installation name is displayed on the Point Overview screen, theAlarm History screen, the Event History screen and on the variousprintouts.

To set the installation name, select the Installation Name option from theSetup Menu.

Numeric Only Fields

Diacritic Entry

Setup Menu

Entering the Passcode

Setting Installation Name


Setting the Point Details

Selecting a Point Number

Name

Setting the Point Type

Setting Temperature Units

Setting Date Format

Enter the installation name using the ‘ ’ or ‘ ’ keys to cycle throughthe character list and the ‘ ’ or ‘ ’ key to move the cursor left or rightrespectively. You can use the ‘ ‘ and ‘ ’ keys together to delete thecharacter before the cursor. When the installation name is complete,press ‘�’, then ' ' to return to the Setup Menu. Next time you displaythe Point Overview screen the installation name will appear at the top ofthe screen.

The m2's temperature unit of measurement can be set to eitherfahrenheit or centigrade. To select the temperature unit, press the '�'key to move the active field box around the 'temperature units' field, thenuse the ‘ ’ or ‘ ’ key to toggle between fahrenheit and centigrade.

The date format of the m2 unit can be set to either 'DD/MM' or 'MM/DD'.To select the date format required, press the '�' key to move the activefield box around the 'temperature units' field, then use the ‘ ’ or ‘ ’ keyto toggle between 'DD/MM' and 'MM/DD'.

To set up the details of an individual point, select the Point Setup optionfrom the Setup Menu. The Point Setup screen is displayed with thepoint number displayed in the top left hand field.

To select a different point number, use the ‘ ’ or ‘ ’ key. As eachnumber is selected, the settings for the selected point are displayed.

To set the name of an individual point, ensure that the cursor is on thecorrect point number and press ‘�’. The cursor will move to the Namefield. Enter the installation name using the ‘ ’or ‘ ’ keys to cyclethrough the character list and the ‘ ’ or ‘ ’ key to move the cursor leftor right respectively. A maximum of 18 characters can be entered intothis field.You can use the ‘ ‘ and ‘ ’ keys together to delete the character

before the cursor and ‘ ‘ to change case. When the installation nameis complete, press ‘�’. The edit box will move onto the next field.

To set the point type, repeatedly press ‘�’ to cycle through the fieldsuntil the Type field is highlighted. The input type code refers to the inputconnected to that point. This can be altered by using the ‘ ’ or ‘ ’keys to scroll through the list of available types, which are defined asfollows.

Off No input connectedRTD PT1000 temperature probe (-100 to +100°C) PT1000 Version Only

PT1 Low temp. thermistor probe (-80 to 0°C) Thermistor Version Only

PT2 Standard thermistor probe (-40 to +40°C) Thermistor Version Only

PT3 High temp. thermistor probe (0 to +100°C) Thermistor Version Only

EKS EKS111 probe (-35 to +85°) PT1000 Version Only

Low Not applicableEno Equipment (normally-open)Enc Equipment (normally-closed)Dno Defrost interlock (normally-open)Dnc Defrost interlock (normally-closed)420 4-20mA input*Cf1 Programmable curve No.1 - input is cross-referenced

to a table held in memory.Cf2 Programmable curve No.2 - input is cross-referenced

to a table held in memory.Cf3 Programmable curve No.3 - input is cross-referenced

to a table held in memory.


Setting the Units of Measurement

Defrost Interlock Point

Setting the Alarm Settings

Cf4 Programmable curve No.4 - input is cross-referencedto a table held in memory.

Ana Remote analogue input and m2+ units.EKC EKC 201/301/331 ControllersCTL Third Party Controllers

* The 4-20mA input is passive. It requires an external 12-24V isolatedpower supply. Default settings are 0 to 100% (0=4mA and 100=20mA).Zero and full scale can be modified via the second Point Setup screen.Values can be between -99 and 999. Applications of 4-20mA can be forpressure tranducers, temp, flow, humidity, level, etc.

To set the units of measurement, repeatedly press ‘�’ to cycle throughthe fields until the Units field is highlighted.

Enter the units required using the ‘ ’ or ‘ ’ keys to cycle through thecharacter list and the’ ' or ‘ ’ key to move the cursor left or rightrespectively.

Note: This is a text field only and does not effect the operation of thesystem. It will not be available if DNO, DNC, ENO or ENC is selected.You can use the ‘ ‘ and ‘ ’ keys together to delete the character

before the cursor and ‘ ‘ to change case. When the units have beenset, press ‘�’. The edit box will move onto the next field.

Select the point to be used for defrost as previously described. Use the‘ ’ or ‘ ’ keys to alter the point type code, if necessary, to “Dno”(defrost interlock, normally-open relay) or “Dnc” (defrost interlock,normally-closed relay).

Select the point to be interlocked to the defrost and repeatedly press ‘�’to cycle through the fields until the Def Int Pt field is highlighted. Use the‘ ’ or ‘ ’ keys to alter the point number to the defrost input.

For example, if probe 1 is a temperature probe and point 16 is a defrostinput contact, set 16 as the defrost interlock in probe 1’s settings.

Select the point as previously described.Repeatedly press ‘�’ to cyclethrough the fields until the High field is highlighted. Set this field to setthe value at or above which an alarm will occur by using the ‘ ’ or ‘ ’keys to cycle through the character list and the ‘ ’ or ‘ ’ key to movethe cursor left or right respectively. When the high temperature alarmpoint has been set, press ‘�’. The edit box will move onto the next field.Repeat the operation for the Low field, to set the value at or belowwhich an alarm will occur. Press ‘�’ to move the edit box onto the nextfield.Repeat the operation for the Delay field. Set the length of time (inminutes) that the fault must be present before an alarm is raised.

Select the point as previously described, then repeatedly press ‘�’ tocycle through the fields until the Action field is highlighted. The statusdisplay shows the alarm action number. Use the ‘ ’ or ‘ ’ keys to setthe required alarm actions. These alarm actions can then be set tocarry out the desired functions.

For example, point number 3 could be set to have alarm action 1 whichsets the siren and dials out to a modem. Whereas, point number 4could be set to alarm action 2 which sets the siren, dials out to a pageras well as the modem, etc.The alarm actions are as follows:

0 Turns the alarm off.

1 - 8 Sets alarm actions 1 to 8.

Setting the Alarm Action


Setting the Log Action

Setting the Graph Action

Log printouts are available for selected points on a timed or demandbasis via the print menu. When a log is printed only points with the logaction field appropriately set will be output. The available settings are:

Off Set this point to OFF if you do not want this point to beshown on any log printouts.

Timed The point will be automatically logged after a specifiedtime delay.

Manual The point will be logged on demand only.

On Set this option to ON if you require this point to beshown on the timed log printouts and also on log ondemand printouts.

Repeatedly press ‘�’ to cycle through the fields until the Log field ishighlighted. Use the ' ' or ' ' keys to set the required log action andpress ‘�’ to move the cursor onto the next field.

Graph printouts are available for selected points on a timed or demandbasis via the print menu. When a graph is printed only points with thegraph action field appropriately set will be output. The available settingsare:

Off Set this option to OFF if you do not want this pointgraph to be shown on any graph printouts.

Timed The graph for this point will be automatically printedafter a the time specified in the Log/Graph Setup screen.

Manual The graph for the point will be printed on demandonly.

On Set this option to ON if you require a graph for thispoint to be printed after the time specified in the Log/GraphSetup screen and also on ‘graph on demand’ printouts.

Repeatedly press ‘�‘ to cycle through the fields until the Graph field ishighlighted. Use the ' ' or ' ' keys to set the required graph action.

With the Graph field highlighted, press and hold down the ‘↵’ key untilthe second Point Setup screen is displayed or press the ' ' in the pointtype field.

The point number and name are the same as those described in firstPoint Setup screen and cannot be edited here.

Use this field to specify whether the input is connected directly to the m2master unit (Local), via a m2+, m2-BBM or third party controller (T-Party)or (Remote) via a EKC controller (Echelon). The input source can be setby pressing the ‘ ’ or ‘ ’ keys to the required option. By default thefirst 16 points are programmed to use the 16 local inputs. Thisconfiguration is not fixed and may be changed. Press the ‘↵’ key tomove onto the next field.

If ‘T-Party’ has been specified for the Input Source, then this field is usedto specify the remote address (refer to relavent controller manual or them2 Instructions RI.8B.M for the m2+ and m2-BBM units). If 'Echelon' hasbeen specified for the Input Source, then this field is not accessible as itis set from the EKC controller.

Input Source

Point Setup (Screen 2)

Remote Addr


Input Type

Input Number

Y Axis

Y Base

4 - 20mA Inputs

Use the ‘ ’ or ‘ ’ keys to cycle through the character list to therequired value and the ‘ ’ or ‘ ’ key to move the cursor left or rightrespectively. Press the ‘↵’ key to move onto the next field.

Use the ‘ ’and ‘ ’ keys to cycle through the valid options as follows:

· RESISTOR Resistor input.· CURRENT 4 - 20 mA input.· DIGITAL Normally open or normally closed

contacts (Contact).· PT1000 PT1000

This field is to specify the input number of the (Remote) third partycontroller, m2+ or m2-BBM unit.

Use the ‘ ’ or ‘ ’ keys to cycle through the character list to therequired value and the ‘ ’ or ‘ ’ key to move the cursor left or rightrespectively. Press the ‘↵’ key to move onto the next field.

This field refers to the overall size of the graph temperature range.Entering zero selects the auto-scale option. Alternatively, enter therequired range. The range goes from the lowest graph point (Y Basevalue) to the highest graph point. Use the ‘ ’, ‘ ’, ‘ ’ or '‘ ’ keys toenter the required value.

This field refers to the lowest value the graph will show. This valueshould be slightly lower than you expect the temperature to drop to. Ifauto scale in the Y axis is selected this value is not used. Use the ‘ ’,‘ ’, ‘ ’ or '‘ ’ keys to enter the required value.

These values are used exclusively in conjunction with a standard 4-20mA input which can represent pressure, humidity, level, flow rate, orany other variable which can produce a 4-20mA output.

The value for the upper and lower limits can therefore represent %(RH), PPM, bar or psi etc., depending on the medium being measured.A numerical value for 4mA (lower limit) and 20mA (higher limit) isentered, and the m2 automatically scales the input for a figureproportional to the measurement. Use the ‘ ’, ‘ ’, ‘ ’ and ‘ ’ keys toenter the required value.

Finally, press ‘ ’ to return to the Setup Menu.

To setup the pulsed input, from the Point Setup menu select ‘PLS’ inthe Point Type field. All the remaining fields in ‘Screen 1’ of the PointSetup are the same as normal.

In ‘Screen 2’ of the Point Setup there are a couple of extra fields added.These are as explained below:

This field is to set either the ‘Constant’ or ‘Peak’ value to be used asexplained previously.

This field is to set the amount of pulses that is to be recieved from thepower meter per kWh.

Pulsed Input Setup

Mode

Pls/kWh


If the Pulsed Input is being setup via Danfoss Central Station software,there is an extra field named ‘Export’ that can be used.This field is set if the points data is to be exported to AKM format foranalysis by Power Focus or similar software.

The m2 Pulsed Input requires a volt free contact or an open collectorand the pusle width must be a minimum of 80mS.

The Pulsed Input will operate with either PT1000 or Thermistor m2 inputboards.

The resolution of the pulse data depends on the sample rate of the m2 –the longer the sample rate, the greater the resolution, as well as theresolution of the power meter being used.

For example:If the power meter outputs five pulses for every Kilo Watt Hour (KWh)and with a current usage of 6KW.

With an m2 sample rate of 3 minutes:

1 or 2 pulses received per 3 minute interval ((5 pulses x 6 KWh) / 60minutes) x 3 minutes = 1.51 pulse x 0.2KW x 20 (for 1 hour) = 4KW2 pulses x 0.2KW x 20 (for 1 hour) = 8KW

Resolution is 4. Values could either be 0, 4, 8, 12 etc.With an m2 sample rate of 15 minutes:

7 or 8 pulses received per 15 minute interval ((5 pulses x 6 KWh) / 60minutes) x 15 minutes = 7.57 pulse x 0.2KW x 4 (for 1 hour) = 5.6KW8 pulses x 0.2KW x 4 (for 1 hour) = 6.4KW

Resolution is 0.8. Values could be 0, 0.8, 1.6, 2.4, 3.2, 4.0, 4.8, 5.6, 6.4etc.

With the Peak option, the sample rate is 1 minute (though the storagerate is whatever the m2 is set for) which gives a very poor graphresolution, this makes the Peak value very inaccurate unless the powermeter outputs many pulses per KWh.

This option allows the coordinated defrost setup of a network of EKCcontrollers. From the Setup Menu, select the Defrost Schedule option.

Use the ‘�’ to highlight the field to be modified. Use the ‘ ’ and ‘ ’keys to scroll through the character or options list and the ‘ ’ and ‘ ’keys to move the cursor left or right respectively.

Set the values as follows:

Number Set this to the point number required for the defrostschedule.

Name Enter the name required for this defrost schedule (this isthe point name).

Mode Select either ‘Master’ or ‘Follows’ depending on whetherthe controller being setup is a ‘Main’ or ‘Secondary’controller. If ‘Master’ has been set, then the next fieldbecomes active in which the controllers address needs tobe entered.

Coordinate This field only becomes active if ‘Master’ is selected in theprevious field. Select either ‘Yes’ or ‘No’ depending on ifthe ‘Secondary’ controllers information is to be used forend of defrost control.

Export

Pulsed Input Installation Notes

Resolution

Defrost Synchronisation


Defrosts per This field only becomes active if ‘Master’ is selected in theDay previous field. Enter the amount of defrosts per day

required, then whether the times are to be set ‘Manually’or ‘Auotmatically’.

Manual - all defrost times entered manually.

Auto - select the number of defrosts per day, enterthe first defrost time, then the remainingtimes will be calculated for a 24 hourperiod.

Day Night Select either ‘Yes’ or ‘No’ depending on whether the Day/Control Night Control on the controller is to be activated of not.

This option allows you to change the three different levels of passcodes– Main, Local and User, also the Inhibit Protection can be activated.The Main and Local Passcode provides access to all the setup screens.The User Passcode only provides access to the Time/Date setup.

From the Setup Menu, select the Password Setup option.

Use the ‘�’ to highlight the passcode to be modified. Type in thepasscode using the ‘ ’ or ‘ ’ keys to cycle through the character listand the ‘ ’ or ‘ ’ key to move the cursor left or right respectively. N.B.Local passcode is numeric only.You can use the ‘ ‘ and ‘ ’ keys together to delete the character

before the cursor and ‘ ‘ to change case. When the passcode has

been set, press ‘�’ then ‘ ’ to return to the Setup Menu.

To set the Inhibit Protection, use the ‘�’ key to highlight the 'InhibitProtected' field, then using the ‘ ’ or ‘ ’ keys to select either 'Yes' or'No'.

To set the Point Offset Passcode Disable, use the ‘�’ key to highlight the‘Pt Offset Disable’ field in the Passcode Setup menu, then using the ‘ ’or ‘ ’ keys select either ‘Yes’ or ‘No’.

To set the print frequencies, select the Log/Chart Frequency option fromthe Setup Menu.

Use the ‘�’ to highlight the field to be modified. Type in the timerequired using the ‘ ’and ‘ ’ keys to cycle through the character listand the ‘ ’ or ‘ ’ key to move the cursor left or right respectively.

Set the values as follows:

Log Print Interval Set this value to determine the interval betweenlog prints (hours : minutes).

Start Print at Enter the time in the day in which you require theprinting of the automatic log readings to start. (Onlypoints that have been set as Timed or ON will beprinted).

Graph Print IntervalSet this value to determine the intervalbetween graph prints.

Start Print at Enter the time in the day that you require theautomatic graph to be printed. (Only points thathave been set as Timed or ON will be printed.)

Sampling Rate Set this field to the frequency of samplingrequired for the graphs.

Setting the Log/Chart Frequency

Password Setup

Point Offset Passcode Protection


The sample frequency affects the amount of data that will be stored inthe units memory.

TDays = Total number of days stored in memory

Freq = Graph sample frequency

Pt = Highest point number used

Total = Total memory available - 2Mb = 2097152- 4Mb = 4194304- 6Mb = 6291456- 8Mb = 8388608

TDays = Freq x (Total - 464000)1440 x (6+(2 x Pt))

Freq = 1440 x TDays x ((2 x Pt)+6)Total - 464000

Example table for days using 40 points.Freq Days1 472 945 23510 47115 706

Example table for frequency using 40 points.Days Freq (in minutes)100 2200 4300 6500 11700 15

These calculations can alter if a large amount of alarms are stored.

Use this option to define the action to take place when an alarm occurs.From the Setup Menu, select the Alarm Action Setup option.Use the ‘ ’ or ‘ ’ keys to cycle through the devices and complete thefields for each device as described below.

RELAY 1 MODEM 2RELAY 2 MODEM 3SIREN MODEM 4LAMP MODEM 5FLASH PRINTMODEM 1

Type in up to 8 characters as an appropriate name for the output device.Use ‘ ’ or ‘ ’ keys to cycle through the character list and the ‘ ‘ or ‘ ‘key to move the cursor left or right respectively.You can use the ‘ ‘ and ‘ ‘ keys together to delete the character

before the cursor and ‘ ‘ to change case. Press ‘�’ to move onto thenext field.

Use this field to specify when the device is to be used. Set the trigger asfollows for each of the Alarm Actions:

0 Always OFF (Never trigger)

1 Always ON (day and night) (Always trigger)

D ON during the day (Trigger during the day only)

N ON during the night (Trigger during the nightonly)

Output Name

Action n

Alarm Action Setup


For example, on the Alarm Action Setup screen illustrated, AlarmActions 1, 2 and 7 will always trigger Relay 1.Note: The alarm action number is set for each point in turn so that pre-determined actions occur when that point is in alarm.

Use this field to specify the delay time in seconds before the device isactivated by an alarm. For example, if the site is manned, a delay of say10 minutes could be entered giving the staff time to respond to thealarm before the dial-out operation occurs. Use ‘ ’ or ‘ ’ keys to cyclethrough the character list and the ‘ ‘ or ‘ ‘ key to move the cursor leftor right respectively.

For RelaysUse this field to specify the time in seconds that the relay will beactivated.

Note:- Entering “999” will activate the relay until the ‘clear on’ conditionoccurs.

For ModemsUse this field to specify the time in seconds between an unsuccessfulcall and the next attempt.

Use this field to specify the clear alarm operation as follows:

NoACK Clears the alarm condition when no new or noacknowledged alarms are present.

Mute Clear the alarm when the Mute key ispressed.

Time Clear the alarm when the time specifiedunder Duration has expired.

MuteR When in alarm, if the 'Mute' key is pressed then therelay will open. If after the 'Duration Time' the alarmis still present, then the relay will close again. If the'Mute' key is not pressed, then the relay will openafter the 'Duration Time' for 10 seconds. This willcontinue until the input triggering the alarm hasbeen reset.

ClrR Same as above except for pressing the 'Mute' keywill not open the relay.

Note: It is not recommended that ‘999’ is specified with ‘Time’as thesystem would have to be switched off to clear the alarm.


Use this option to set the modem dialout settings. From the SetupMenu, select Modem Dialout Options.

When connected to a modem, the m2 is able to make telephone calls toup to five pre-programmed numbers whenever an alarm is detected.Alternatively, individual alarms detected for a particular point can berouted to a particular telephone number. It can also call a radio pagerto alert a duty engineer. Three types of pager can be supported - Toneonly, Numeric and Alphanumeric. The message that is sent can also bedefined.

Note: Support for the TAP pager protocol is available in UK, France,Switzerland and Scandinavia.

Modem Dialout Options

Duration

Clear On

Delay


Use the ‘ ’ or ‘ ’ keys to cycle through the dialout numbers andcomplete the fields for each device as described below:

Use this field to specify the type of device which is connected to thespecified telephone number. The options are as follows:

NO DIAL Inhibits the output.

GSM SMS Indicates that a RS232/GSM modem device is connected.Sends text messages to a GSM mobile phone andreceives messages. For information on this feature refer todocument Functional Description RC.8A.M.

DOWNLOAD Indicates that a computer is connected (directly orremotely). Sends the alarm message using WoodleyXmodem Alarm protocol. If the line is busy, thetelephone number will be dialled up to four times (8 bit,No Parity, 1 Stop Bit).

AKM Same as above, except that dialout attempts will continue;after every 10 attempts will reset the alarm relay.Note: Modem must be wired in conjunction with the alarmrelay (refer to appendix A).

BEEPER Indicates that a beeper type pager is connected. Thesystem dials the appropriate telephone number andthen disconnects. As there is no security associatedwith this option, the telephone number is always dialledtwice unless the busy tone is received.

MESSAGE7 Indicates that a 7 bit modem is connected with a printerattached. (7 bit, Even Parity, 1 Stop Bit) (normally usedin France).

MESSAGE8 Indicates that an 8 bit modem is connected with a printerattached. (8 bit, No Parity, 1 Stop Bit) (normally used inUK).

PAGER7S Indicates that a TAP 7 bit protocol pager is connectedwhich can display a message. The message sent isdefined on the Pager Info line (7 bit, Even Parity, 1 StopBit).

PAGER7M Identical to PAGER7S but sends message up to 4 times.

PAGER8S Indicates that a TAP 8 bit protocol pager isconnected which can display a message. The messagesent is defined on the Pager Info line (8 bit, No Parity, 1Stop Bit).

PAGER8M Identical to PAGER8S but sends message multipletimes.

Enter the appropriate telephone numbers for each of the devices used.If a comma ‘,’ is inserted before the number, a delay of between 2 and 4seconds will be inserted between the modem picking up the line anddialling. If a ‘w’ is inserted before the number, the modem will wait forthe secondary tone before dialling.

For a message to be sent to a pager, two items of information must besupplied in addition to the Tap Pager server telephone number.1. The pager I/D, this is normally marked on the pager.

2. The text message to be sent to the pager.

Dialout

Call Type

Number


Text codes can be added that add other information into the message.These codes are as follows:

\S Sends the Store Name.\A Sends the Last Alarm Message\C Sends a count of alarms and muted alarms

in the format 2/4.\R Sends the Carriage Return (CR) character.\L Sends the Line Feed (LF) character.\\ Sends the \ character.// Sends the / character.\N Sends output name.

An typical text string will take the form:

123456\RAlarm at \S = \A\RThis page info string would cause pager '123456' to receive a messagein the form"Alarm at Danfoss Superstore = 24 Fresh Fish 6.4 Hi>6.0"The pager info field is limited to a maximum of 30 characters


Probe curves can be used to define the relationship between inputResistance or Current values and engineering units (e.g. Temperature,Pressure etc.). For example, probe curves could be used for a gasdetection sensor.

This option allows you to define such a relationship for 4 separate curvetypes using information about Resistance/Current to Output Valuetransfer characteristic of a given probe, supplied by probemanufacturers. From the Set-up Menu, select the Define Probe Curvesoption. The Curve Table Set-up screen is displayed. There are 4 curvetables available - Cf1, Cf2, Cf3 and Cf4. Use the ‘ ’ or ‘ ’ keys to cyclethrough the curves until the correct type is displayed.

The table can have up to 12 break points to define the Curve Tablerelationship. Each of these break points will have a corresponding Inputand Output value which must be entered by the user. The Output valuewill be the reading which should be displayed on the Point Detail /Overview Screen for a given Resistance/Current value. The Input Valuewill be an Internally Scaled version of that Resistance/Current Inputvalue.

Below are explanations of each fields displayed for defining the curvetables:

Con 1 as This field is for selecting either 'RESISTOR' or'CURRENT' depending on the type of probe beingused.

To use = This field displays the Internally Scaled version ofa Resistance/Current connected across the unit'sInput 1 and COM terminals. This value will be inthe range of 0 to 9999. This readout is used todetermine what to put in the Input field whensetting up the Curve Table.

Converted = This field displays the result of applying theselected Curve table function to the 'To use ='value being displayed. Thus when no Break Input& Output values have been entered, this will givean out of range reading (SC/OC). As a CurveTable is built up, however, it will start to show theOutput value corresponding to whatever theResistance/Current connected across Input 1.

Defining the Probe Curves

Pager Info


Curve This field is used to select 1 of the 4 curve tables(Cf1 - Cf4).

Break This field is used to select the break point beingset up on the curve (1 - 12).

Input This field is for the Internally Scaled input value tobe used at the break point selected. The 'To use ='value can be copied into this field by pressing ' 'and ' ' together. This field has a range of between0 and 9999.

Output This field is for the Output value at the Break Point/Input value selected. This has a range of between-999.9 and 999.9.

The table should be completed so that the Input readings increase invalue. Any reading below the first value or above the last value willreturn out of range Output Values (OC/SC).In order to set up a Table you will require either a Resistance box (forresistance probes) or a Current Source (for Current Probes) plus themanufacturer's data defining the Input/Output relationship of the probe.The method is described for a Resistance probe, but it is the same forthe Current case except that it is necessary to put the Input 1 link in the4-20mA position before starting.

1. Select (up to) 12 Output (Resistance) values from themanufacturer's data sheet which correspond to Input (e.g.Temperature) values in the range you wish to measure. Formaximum accuracy these points should be distributed evenlyacross the required range.

2. Connect the Resistance Box across the Input No. 1 and Cterminals of the unit and set it to the lowest of your selectedOutput values. When you do this you should see a value appearin the 'To use =' field. This is the Internally Scaled version of theresistance you have connected. Set the Break field to 1 and thengo to the Input field.

3. Next either manually enter the value displayed in the 'To use ='field, or press the ‘ ‘ and ‘ ‘ keys together to copy it to the Inputfield.

4. Move to the Output field and enter the Output (e.g. Temperature)value from your probe data corresponding to the Resistancevalue you set.

5. Move the Edit Box to the Break field again and increase its valueby 1, which will clear the Input and Output fields.

6. Set your next chosen Resistance value from the probe data and,when the 'To use =' value has stabilised, repeat from step 3until all your points have been entered.

Once all points have been entered, you can vary the resistanceconnected to Input 1 and observe the effect in the Converted field. For agiven resistance, this value should now be the same as that shown inthe manufacturer's probe data.

For 4-20 mA inputs the 'Input type' must be set to 'CURRENT', then theInput/Output fields will change to 4mA/20mA. The curve table can nowbe set up. For example, if a pressure sensor was being used whichproduced 4mA at 0.1 bar and 20mA at 30 bar, then simply add 0.1 to the4mA field and 30 to the 20 mA filed. Ensure the point set-up and jumperlink on the input terminal is set to 4-20mA.

Setting up a Curve Table

4-20mA Set-up


Language Selection

Answer

Baud Rate

Dial

Modem Configuration

When you have finished or to abandon the operation, press ‘ ’ toreturn to the Setup Menu.

When connected to a modem, use this option to configure the modemsettings. From the Setup Menu, select the Modem Configuration option.

Use the ‘ ’ or ‘ ’ keys to cycle through the valid baud rates to therequired value and press ‘�’ to move onto the next field.

Enter the dial code you require. Use the ‘ ’and ‘ ’ keys to cyclethrough the character list and the ‘‘and ‘‘ keys to move the cursor left orright respectively.

Enter the answer code you require. Use ‘ ’ or ‘ ’ keys to cyclethrough the character list and the ‘ ‘ or ‘ ‘ key to move the cursor leftor right respectively.

Note: Refer to your modem handbook for details of the valid modemcommands and answer codes.

When you have finished or to abandon the operation, press ‘ ’ onceto return to the Setup Menu and again to return to the Main Menu.

The m2 supports several languages, as listed below:

English Swedish HungarianFrench Norwegian PolishGerman Danish CzechDutch Icelandic FinnishItalian Spanish

Selecting Change Language from the Setup Menu will present you withthe appropriate list of languages for your unit. Selection of the requiredlanguage will refresh the screen to display the Main Menu in the newlanguage and will automatically adjust the range of Diacritics (accentedcharacters) available in Edit Fields.


A EKC 201/301/331 controller is logged onto a m2 system from thecontroller only.

Shown in the table below is the operation for logging a EKC controlleronto a m2 system.

The symbols for pushing of buttons have the following meanings:

Push the upper button Push the lower button

Push both buttons simultaneously

When a EKC controller is logged on to a m2 system, whatever thecontrollers address is parameter (o03) will automatically be assigned asthe point number on the m2. This will include overwriting any previoussettings set to that point number.Ensure before logging a EKC controller onto a m2 system, that theaddress set is available in the m2. If not available then change theaddress on the controller.

Logging EKC Controllers Onto m2System


m2 Comms with EKC 201/301Controllers


EKC 201/301 Controller Point Detail Screen To view the Controller Point Detail Screen is the same procedure as astandard Point Detail Screen. The Controller Point Detail Screen isdisplayed as shown.

There are five informations area that are displayed. These areas displaythe following information:

this area will display icons indicating the status ofthe controller, the icons being of the following:

- cooling

- defrost

- fans

this indicates the main temperature.

this indicates the secondarytemperature.

this indicates whether the point has

been setup for 'Local' or 'Remote'alarms.

- Local

- Remote

This area also displays 'inhibit', 'defrost'and 'pulldown' icons, if the point hasbeen setup for 'Local'.



- a point in defrost.

- a point in defrost pulldown.

Indicates the upper alarm limit setting. When the

of the symbol is scrolling, it indicates that theupper alarm limit has been exceeded.

Indicates the setpoint setting.

Indicates the lower alarm limit setting. When the

part of the symbol is scrolling, it indicates thatthe lower alarm limit has been exceeded.


To configure a controller point, the controller must first be logged on,after which select the Point Setup option from the Setup menu andselect the point number of the EKC controller. The controller Point Setupscreen is as displayed.

The controller point setup screen differs from the standard point setupscreen as follows:Type This field is automatically set when(Setting the Point Type) the controller is logged on and

therefore must not be adjusted.

Defr PDown In ‘Local Alarms’ mode this field is(Defrost Pulldown) used to specify the defrost lockout in

minutes, by using the ‘ ’and ‘ ’keys. In ‘Remote Alarms’ mode thisfield is not used.

Alarms (Setting the Use this field to specify the source ofAlarms Source) the alarms. The two settings are:

LOCAL This will set the m2 to generate alarms as a result ofreadings returned by the controller, and administer thelocking out of these alarms during defrost. In this mode thedefrost icon will be displayed in the bottom right of thePoint Detail screen in addition to the left hand window.This will change to the defrost pulldown icon duringpulldown.

REMOTE This will set the m2 to report alarms as a result of alarmstates detected by the controller, and allows the controllerto manage defrost lockout.

The point setup screen will differ depending on whether the point hasbeen set to 'Local' or 'Remote'. The differences are as follows:LocalThe 'Local' screen the same as a standard point setup screen.

RemoteThe 'Remote' screen has the following fields:

Alm Act (Setting the Use the ‘ ’and ‘ ’ keys to set theAlarm Action) required alarm action zone for the

controllers alarms.War Act (Setting the Use the ‘ ’and ‘ ’ keys to set theWarning Action) required alarm action zone for the

controllers warnings.

With the 'Type' field highlighted, press the ' '�key to display the secondPoint Setup screen. To return to the first screen, press the ' ' key.

The controller point setup screen 2 for the EKC 201/301 only allows the'Y Axis' and 'Y Base fields to be modified, the remote addressing andtemperature fields are set from the EKC unit only.

The EKC 201/301 controller alarms are shown in the alarm history listdisplaying the alarm codes across both the 'St' and 'Reason' columnsand are as follows:

High Temp High temperature alarmLow Temp Low temperature alarmOpen Door Open door alarmEKC Faulty Faulty EKC unit alarmAir Sen. OC Air probe open circuitAir Sen. SC Air probe closed circuitDef Sen. OC Defrost probe open circuit

Configuring the EKC201/301Controller via the Key Pad

Controller Point Setup

Controller Point Setup (Screen 2)

Alarm History


Def Sen. SC Defrost probe closed circuitComms Fail EKC communication failure alarm? Controller currently disconnected

For a '3 Sensor' EKC 201 controller, a different list of alarm codes areshown in the alarm history and are as follows:

Sdef Bad Defrost probe errorSout High Sout high temperature alarmSout Low Sout low temperature alarmSin High Sin high temperature alarmSin Low Sin low temperature alarmSout Bad Sout probe errorSin Bad Sin probe errorEKC Faulty Faulty EKC unit alarmMax. StandbyMaximum standby time after slave defrost (o16)Comms Fail EKC communication failure alarm? Controller currently disconnected


m2 Comms with EKC 331 CapacityController


EKC 331 Controller Point Detail Screen To view the Controller Point Detail Screen is the same procedure as astandard Point Detail Screen. The Controller Point Detail Screen isdisplayed as shown.

There are five information areas that are displayed. These areas displaythe following information:

this area will display icons indicating the status ofthe controller, the icons being of the following:

- fans on

- compressors on

this indicates the compressor orcondenser pressure.

this indicates whether the point has

been setup for 'Local' or 'Remote'alarms.

- Local

- Remote

This area also displays 'inhibit' and'inhibit pulldown' icons, if the point hasbeen setup for 'Local'.



Indicates the upper alarm limit setting. Whenthe of the symbol is scrolling, it indicatesthat the upper alarm limit has been exceeded.

Indicates the setpoint setting.

Indicates the lower alarm limit setting. Whenthe part of the symbol is scrolling, itindicates that the lower alarm limit has beenexceeded.


To configure a controller point, the controller must first be logged on,after which select the Point Setup option from the Setup menu and selectthe point number of the EKC controller. The controller Point Setupscreen is as displayed.

The controller point setup screen differs from the standard point setupscreen as follows:Type This field is automatically set when(Setting the Point Type) the controller is logged on and

therefore must not be adjusted.

Defr PDown This field is not used.(Defrost Pulldown)

Alarms (Setting the Use this field to specify the source ofAlarms Source) the alarms. The two settings are:

LOCAL This will set the m2 to generate alarms as a result ofreadings returned by the controller, and administer thelocking out of these alarms during defrost. In this mode thedefrost icon will be displayed in the bottom right of thePoint Detail screen in addition to the left hand window.This will change to the defrost pulldown icon duringpulldown.

REMOTE This will set the m2 to report alarms as a result of alarmstates detected by the controller, and allow the controller tomanage defrost lockout.

The point setup screen will differ depending on whether the point hasbeen set to 'Local' or 'Remote'. The differences are as follows:

LocalThe 'Local' screen the same as a standard point setup screen.

RemoteThe 'Remote' screen has the following fields:Alm Act (Setting the Use the ‘ ’and ‘ ’ keys to set the requiredAlarm Action) alarm action zone for the controllers alarms.

War Act (Setting the Use the ‘ ’and ‘ ’ keys to set the requiredWarning Action) alarm action zone for the controllers

warnings.

With the 'Type' field highlighted, press the ' '�key to display the secondPoint Setup screen. To return to the first screen, press the ' ' key.

The controller point setup screen 2 for the EKC 331 only allows the 'YAxis' and 'Y Base' fields to be modified, the remote addressing andtemperature fields are set from the EKC unit only.

The EKC 331 controller alarms are shown in the alarm history listdisplaying the alarm codes across both the 'St' and 'Reason' columnsand are as follows:

High Press. High pressureLow Press. Low pressureErr Press. Pressure errorEKC Faulty Faulty EKC unit alarmComms Fail EKC communication failure alarm? Controller currently disconnected

Configuring the EKC331Controller via the Key PadController Point Setup

Controller Point Setup (Screen 2)

Alarm History


Configuring The m2-BBm or m2+Via The Key Pad

The controller's parameters can also be modified using a PC connectedto the m2 running Danfoss Central Station software. Refer to manualRS.8C.G for more information.

To configure a point to either a m2-BBM or m2+, select the Point Setupoption from the Setup menu and then select a point number to be used.

The standard point setup screen is then displayed with the standardfields as previously described. Use all the fields as previously describedexcept for the following:

Set this field to either 'RTD' (for temperature monitoring) or '420' (for 4-20mA inputs).

With the 'Type' field highlighted, press the ' ' key to display the secondpoint setup screen.

Set this field to 'T-PARTY'.

Set this field to the same address that has been set on the m2-BBM orm2+.

Set this field to the type of input being used by the m2-BBM or m2+ unit.Use the ‘ ’and ‘ ’ keys to cycle through the valid options as follows:

· RESISTOR Resistor input.· CURRENT 4 - 20 mA input.· DIGITAL Normally open or normally closed

contacts (Contact).· PT1000 PT1000

Set this field to the input number being used on the m2-BBM or m2+ unitfor monitoring.

Type

Input Source

Remote Addr

Input Type

Input Number

Remote Controller Parameters


Maintenance

Cleaning To keep the m2 free from dust, periodically wipe the outside surfacewith a soft dry cloth. DO NOT use any abrasive cleaners, wax orsolvents. Stubborn marks may be removed by using a soft clothdampened with a mild detergent.

This m2 unit should be serviced only by a qualified service personneland should ensure that replacement parts match the original safetycharacteristics.

CAUTION: This unit is fitted with rechargeable batteries, use onlymanufacturers replacements.

Service

Full Character Set Alphanumeric Character Set

A a )ecaps(

B b !

C c "

D d #

E e $

F f %

G g &

H h '

I i (

J j )

K k *

L l +

M m ,

N n -

O o .

P p /

Q q 0

R r 1

S s 2

T t 3

U u 4

V v 5

W w 6

X x 7

Y y 8

Z z 9

[ { ;

\ | <

] } =

^ ~ >

` º

0 V

1 W

2 X

3 Y

4 X

5 a

6 b

7 c

8 d

9 e

A f

B g

C h

D i

E j

F k

G l

H m

I n

J o

K p

L q

M r

N s

O t

P u

Q v

R w

S x

T y

U z


Appendix A

'AKM' Call Type

Background The Danfoss AKM has been updated to allow it to receive alarms fromm2 units. However the m2 alarm dialout procedure differs from theDanfoss Gateway in that it is not as tolerant of faulty telecommunicationequipment. The m2 would make repeated calls to try to transmit thealarm message up to a maximum of 8. This conformed to the currenttelecommunication regulations when the procedure as defined.AKM will continue to try to transmit the alarm indefinitely. It can alsocontrol the power to the modem using one of it relays. It does this afterten failed attempts to dial-out and every 6 hours.The 'AKM' call type has been created to mimmic the same dialout as theAKM.

The m2 has two relays that are normally used for alarm indication. TheRelay 2 (REP ALARM) can be used to control the modem power. TheRelay is rated at 24V 1A max, so the low voltage power after the mainstransformer must be switched. Mains voltage MUST NOT be connectedto this relay.

Modem to m2 Wiring

Dial Out Settings

Alarm Action Setup

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Modem Dial Out Setup

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Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to productsalready on order provided that such alternations can be made without subsequential changes being necessary in specifications already agreed.All trademarks in this material are property of the respecitve companies. Danfoss and Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

List of Literature

Manual RS.8A.NProvides full instructions on how to operate the m2 unit.

Manual RS.8C.GProvides full instructions on how to operate the m2 unitvia a PC using Danfoss Central Station software.

Instructions RI.8B.MProvides full instructions on how mount the m2 unit andconnection to EKC controllers and third party units.

Installation RI.8B.NProvides full instructions on EKC-LONWORKS®

data comms with the m2.

Functional RC.8A.MProvides full instructions of the m2's GSM-SMS commsfunctions.

Documents

M2 B2 Manual