Danfoss AK-LM 330 Design Manual
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Danfoss AK-LM 330 Design Manual

Monitoring unit
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Design Guide
Monitoring unit
AK-LM 330
ADAP-KOOL® Refrigeration control systems

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  • Page 1 Design Guide Monitoring unit AK-LM 330 ADAP-KOOL® Refrigeration control systems...

  • Page 2: Table Of Contents

    Monitoring functions ................68 Planning table ..................33 Miscellaneous ..................71 Length ....................34 Alarm texts ....................75 Linking of modules .................34 Appendix - Recommended connection .........76 Determine the connection points ..........35 Connection diagram ..............36 Supply voltage .................37 Ordering .....................38 RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 3: Introduction

    1. Introduction Application AK-LM 330 is a complete monitoring unit with the option of regu- lation functions via relay switches. The monitoring unit is used to detect temperature, pressure, functions etc. in and around appliance cases and cold rooms for commercial and industrial cooling.

  • Page 4: Principles

    • In addition to the software the top part is provided with connections for data communication and address setting. A regulation with few connections can If there are many connections one or more Examples be performed with the controller module extension modules have to be mounted alone RS8FR302 © Danfoss 2015-08 AK-LM 330...
  • Page 5 “to see”. External display An external display can be fitted in order for readings of the tem- peratures to be displayed. Up to 4 display can be mounted. AK-LM 330 RS8FR302 © Danfoss 2015-08...
  • Page 6 If you want to know more about a current alarm you can click on it and obtain an information display on the screen. A corresponding display exists for all earlier alarms. Here you can upload information if you need further details about the alarm history. RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 7: Design Of A Controller

    If it is an application with many connections it will be necessary to use the controller module plus one or more extension modules. This section will give you a survey of possible connections plus assistance in selecting the modules required by your actual application. AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 8: Module Survey

    Controller with analog inputs and relay outputs. Top part The module with additional relay outputs is also available in a version where the top part is provided with change-over switches so that the relays can be overridden. RS8FR302 © Danfoss 2015-08 AK-LM 330...
  • Page 9 Real time clock for use in controllers that require a clock function, but are not wired with data communication. AK-OB 101A Real time clock with battery backup. To be mounted in an AK controller On the following pages there is data specific to each module. AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 10: Common Data For Modules

    The relays cannot be used for the direct connection of capacitive loads such as LEDs and on/off control of EC motors. All loads with a switch mode power supply must be connected with a suit- able contactor or similar. RS8FR302 © Danfoss 2015-08 AK-LM 330...
  • Page 11 The module dimension is 72 mm. Modules in the 100-series consist of one module Modules in the 200-series consist of two modules Controllers consist of three modules The length of an aggregate unit = n x 72 + 8 AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 12: Controller

    • Software status (slow flash = OK) • Communication with Service Tool • Communication on LON • Alarm when LED flashes - 3 LED’s that are not used • “Service Pin” switch has been activated RS8FR302 © Danfoss 2015-08 AK-LM 330...
  • Page 13 15 (DO 4) 37 - 38 16 (DO 5) 39 - 40- 41 17 (DO6) 42 - 43 - 44 18 (DO7) 45 - 46 - 47 19 (DO8) 48 - 49 - 50 AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 14: Extension Module Ak-Xm 101A

    5 V output or the 12 V output depending on transmitter type. Light-emitting diodes Only the two top LED’s are used. They indicate the following: • Voltage supply to the module • Communication with the controller is active (red = error) RS8FR302 © Danfoss 2015-08 AK-LM 330...
  • Page 15 Active at: Main switch 5 (AI 5) 17 - 18 Closed 6 (AI 6) 19 - 20 Day/ Night Open 7 (AI 7) 21 - 22 Door 8 (AI 8) 23 - 24 Defrost AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 16: Extension Module Ak-Xm 102A / Ak-Xm 102B

    • Communication with the controller is active (red = error) Off: DI < 2 V a.c. Off: DI < 24 V a.c. • Status of the individual inputs 1 to 8 (when lit = voltage) RS8FR302 © Danfoss 2015-08 AK-LM 330...
  • Page 17 3 (DI 3) 5 - 6 4 (DI 4) 7 - 8 5 (DI 5) 9 - 10 6 (DI 6) 11 - 12 7 (DI 7) 13 - 14 8 (DI 8) 15 - 16 AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 18: Extension Module Ak-Xm 204A / Ak-Xm 204B

    Behind the upper part there is a fuse for each output. AC-1: max. 4 A (ohmic) must not be connected to the same output group AC-15: max. 3 A (Inductive) AK-XM 204B Override of relay RS8FR302 © Danfoss 2015-08 AK-LM 330...
  • Page 19 34 - 35 -36 5 (DO 5) 37 - 38 - 39 6 (DO 6) 40 - 41 - 42 7 (DO 7) 43 - 44 - 45 8 (DO 8) 46 - 47 - 48 AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 20: Extension Module Ak-Xm 205A / Ak-Xm 205B

    AC-1: max. 4 A (ohmic) Behind the upper part there is a fuse for each output. must not be connected to AC-15: max. 3 A (Inductive) the same output group AK-XM 205B Override of relay RS8FR302 © Danfoss 2015-08 AK-LM 330...
  • Page 21 13 (DO 5) 37 - 36 - 39 Defrost Night 14 (DO6) 40 - 41 - 42 blinds Valves 15 (DO7) 43 - 44 - 45 Compres- sors 16 (DO8) 46 - 47 - 48 AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 22: Extension Module Ak-Xm 107A

    Extension module AK-XM 107A Function The module contains eight inputs for pulse counting. AK-LM 330 can detect signals from 4 pulse signals. As an alternative, the input can be used to register a signal for synchronising or an On/Off signal. (DI function).
  • Page 23 5 (CI 5) 9 - 10 - - - 6 (CI 6) 11 - 12 - - - 7 (CI 7) 13 - 14 - - - 8 (CI 8) 15 - 16 - - - AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 24: Extension Module Ak-Ob 101A

    The working life of the battery is several years – even if there are frequent power failures. An alarm is generated when the battery has to be replaced. After the alarm there are still several months of operating hours left in the battery. RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 25: Display Module Eka 163B / Eka 164B

    The extension module can be placed at a distance of up to 15 m from the controller module. Point No point has to be defined for a display module – you simply connect it. AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 26: Transformer Module Ak-Ps 075 / 150

    AK-PS 150 24 V d.c. 1.5 A 36 VA (adjustable) Connections Dimension Type High Width AK-PS 075 90 mm 36 mm AK-PS 150 90 mm 54 mm Supply to a controller AK-PS 075 AK-PS 150 RS8FR302 © Danfoss 2015-08 AK-LM 330...
  • Page 27 AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 28: Preface To Design

    Regulation can be started and stopped via the software. document. Literature no. RC8AC. Alarm function If the alarm is to be sent to a signal transmitter, a relay output will have to be used. RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 29: Connections

    ✔ No more than five pressure transmitters may be connected to one controller module. data can be downloaded, and others where coupling with relays can be performed. ✔ No more than five pressure transmitters may be connected to one extension module. AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 30: Design Of A Monitoring

    9. The modules are linked together 10. The connection sites are established 11. Draw a connection diagram or a key diagram 12. Size of supply voltage/transformer Sketch Make a sketch of the system in question. RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 31: Monitoring Unit

    Read out of the consumption during the last week Read out of the total consumption since the last reset Alarm relay Number Priority "high" or priority "low to high" Miscellaneous Alarm priorities Sensor correction Option for connection of separate display AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 32: Connections

    Data from this example is used on the next page. The result is that the following modules should be used: • AK-LM 330 Monitoring unit • AK-XM 102B extension module with digital high voltage inputs • AK-XM 107A extension module with pulse inputs •...

  • Page 33: Planning Table

    ___ pcs. á 5 VA = __ AK-XM 205A / B (8 analog inputs + 8 relay outp.) ___ pcs. á 5 VA = __ 1 pcs. á 8 VA = 8 Sum = Sum = max. 32 VA AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 34: Length

    DIN rail – no matter where in the row the module is found. Removal is likewise carried out with the two catches in the open position. RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 35: Determine The Connection Points

    Relay for thermostat Saux3 17 (DO6) 42 - 43 - 44 Relay for voltage for signal U2 18 (DO7) 45 - 46 - 47 Relay for pressostat Paux2 19 (DO8) 48 - 49 - 50 Alarm relay AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 36: Connection Diagram

    Connection diagram Drawings of the individual modules may be ordered from Danfoss. Format = dwg and dxf. You may then yourself write the module number in the circle and draw the individual connections. Example continued: RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 37: Supply Voltage

    Total ___ VA supply. The + and – 24V input must not be earthed. Example continued: Controller module 8 VA + 2 extension module in 100-series 4 VA ------ Transformer size (least) 12 VA AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 38: Ordering

    Real time clock for use in controllers that require a clock function, but are not wired with data communication. AK-OB 101A Real time clock with battery backup. To be mounted in an AK controller 080Z0252 RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 39: Mounting And Wiring

    We have decided to work on the basis of the example we went through previously, i.e. the following modules: • AK-LM 330 Monitoring unit • AK-XM 102B digital input module for 230 V signals • AK-XM 107A pulse counter module •...

  • Page 40: Mounting

    DIN rail – regard- less of where the module is on the row. Disassembly is thus done with the two snap catches in the open posi- tion. RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 41: Wiring

    3 (CI 3) 5 - 6 4 (CI 4) 7 - 8 5 (CI 5) 9 - 10 6 (CI 6) 11 - 12 7 (cI 7) 13 - 14 8 (cI 8) 15 - 16 AK-LM 330 RS8FR302 © Danfoss 2015-08...
  • Page 42 Network installation When the controller is set correct on the network the LED "sta- tus" will flash quickly for 10 minutes. Status on output 1-8 6. The controller is now ready to be configured. RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 43: Configuration And Operation

    We have decided to work on the basis of the example we went through previously, i.e. temperature monitoring, pressure monitoring, monitoring of 230 V signals, energy registration and repress alarms. The example is shown overleaf. AK-LM 330 RS8FR302 © Danfoss 2015-08...
  • Page 44 We have decided to describe the setup by means of an example comprising the connections shown below. The example is the same as the one given in the "Design" section, i.e. the controller is an AK-LM 330 + 2 extension modules. • Temperature reading with temperature shown on the display (Saux1) •...

  • Page 45: Configuration

    The red alarm bell at the bottom right tells you that there is an active alarm in the controller. In our case the alarm is due to the fact that the time in the controller has not yet been set. AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 46: Change Language

    5. Carry out a new login with the new user name and relevant access code. the new access code You will access the login display by pressing the padlock at the top left corner of the display. RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 47: Unlock The Configuration Of The Controllers

    On. Only when the main switch is set to Off, and regulation has therefore been stopped, is it possible to set the configuration lock. 4. Select Unlocked Select Unlocked and press OK. AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 48: System Setup

    When the controller is connected to a net- work, date and time will automatically be set by the system unit in the network. This also applies to change-over Daylight saving. RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 49: Set Plant Type

    Define whether a relay which is enabled for alarms with all priorities is to be used. If the 'Reset alarm' function is enabled, it will cancel any current alarm. It changes back to 'no' by itself. AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 50: Set Display Setup

    DI14 ALM DI15 ALM DI16 ALM In our example, the temperature display for Thermostat 1 is to be read on Display A. 5. Select view for other display 6. Select measuring unit i.e. °C RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 51: Configuration Of Inputs And Outputs

    We furthermore select for each output whether the function is to be Here pulse measurements active when the output is in pos. Closed or Open. can be connected in ac- cordance with DIN 43864. Press the +-button to go on to the next page AK-LM 330 RS8FR302 © Danfoss 2015-08...
  • Page 52 The min. and max. values of the pressure interval must be set). Voltage signals: Voltage input 1 - 5 Setting: • 0 - 5 • 1 - 5 • 0 - 10 • 2 - 10 RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 53: Set Alarm Priorities

    Press the +-button to go on to the next page 4. Set alarm priorities for "Various" In our example we select the settings shown here in the display Press the +-button to go on to the next page AK-LM 330 RS8FR302 © Danfoss 2015-08...
  • Page 54 Configuration - continued 5. Set alarm priorities for General alarms In our example we select the settings shown here in the display RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 55: Check Of Settings

    (In our example, both settings have been used in Thermostat 2. Here the settings are DI1 and DI2 respectively). Remember the settings at the bottom of the pages – the ones that can only be seen via the ”Scroll bar”. ” AK-LM 330 RS8FR302 © Danfoss 2015-08...
  • Page 56 Remember the settings at the bottom of the pages – the ones that can only be seen via the ”Scroll bar”. ” 9. Repeat settings for the other pressostats 10. Select voltage signals 11. Overview for voltage signals RS8FR302 © Danfoss 2015-08 AK-LM 330...
  • Page 57 • On time in % for the last 24 hours • Total On time in hours • Number of changes to On in the last 24 hours • Total number of changes to On AK-LM 330 RS8FR302 © Danfoss 2015-08...
  • Page 58 The measurement can be monitored in the five fields. These display the total consumption, the current load and the average load over the period of time. 22. Repeat the settings for the other utility meters. 23. The control of the settings has been completed. RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 59: Lock Configuration

    The controller will now make a comparison of selected func- tions and define inputs and outputs. The result can be seen in the next section where the setup is controlled. AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 60: Check Configuration

    Press the +-button to go on to the next page fore you can change module and point numbers. 5. Check configuration of Analog inputs The setup of the analog inputs appears as it is sup- posed to according to the wiring made. RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 61: Check Of Connections

    In our case we have no value. This may be due to the following: • The sensor has not been connected. • The sensor is short-circuited/interrupted • The point or module number has not been set up correctly. • The configuration is not locked. AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 62: Installation In Network

    The wiring has not been carried out correctly. The termination has not been carried out correctly. The data communication requirements are described in the document: ”Data communication connections to ADAP-KOOL® Refrigeration Con- trols” RC8AC. RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 63: First Start Of Control

    Please note that active plant alarms are automatically cancelled when the main switch is in pos. OFF. If active alarms appear when the control is started the reason for these should be found and remedied. AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 64: Start The Control

    The controller will now start controlling when the external switch also are activated to “ON”. If the alarm relay is enabled, the alarm relay can be reset using this function. Remember to investigate where the alarm comes from. RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 65: Setup Logs

    Here it is determined which parameters have to be included in the setup of data. Select a function here, then a parameter, and finish with OK. Press the +-button to go on to the next page AK-LM 330 RS8FR302 © Danfoss 2015-08...
  • Page 66 A LOG CAN ONLY BE DISPLAYED IF: 6. Start the log collection • THE CLOCK HAS BEEN SET AND Move to the first of the three displays and start the log collec- • THE CONFIGURATION IS LOCKED tion RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 67: Regulating Functions

    5. Regulating functions This section describes how the different functions work AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 68: Monitoring Functions

    • Delay time for 'high alarm' • Delay time 2 for 'high alarm' • Alarm text for 'high alarm' • Low alarm limit • Delay time for 'low alarm' • Alarm text for 'low alarm' RS8FR302 © Danfoss 2015-08 AK-LM 330...
  • Page 69 • Setting the cut-in value for relay + delay time for cut-in • High alarm limit • Delay time for 'high alarm' • Alarm text for 'high alarm' • Low alarm limit • Delay time for 'low alarm' • Alarm text for 'low alarm' AK-LM 330 RS8FR302 © Danfoss 2015-08...
  • Page 70 The main meter measures all of the consumption for the installa- tion. Some main meters are fitted with tariff and synchronisation switches. The AK-LM 330 can receive the synchronisation signal. The synchronisation switch changes at regular intervals (typically every 15 mins) and indicates that a new measurement period has started.

  • Page 71: Miscellaneous

    The controller has a limited memory but as a rule of thumb, the 10 parameters can be saved, which are registered every 10 minutes for 2 days. Via AK-ST 500 one can subsequently read the historical values in the form of graph presentations. AK-LM 330 RS8FR302 © Danfoss 2015-08...
  • Page 72 State a password c) Select user level Get off to a good start d) Select units – either US (e.g. °F and PSI) or Danfoss SI (°C and The following procedure will start regulation as quickly as pos- Bar)
  • Page 73 Status on alarm DI 13 Status on alarm DI 14 Status on alarm DI 15 Status on alarm DI 16 X = When the controller is not set up, the display will only read the marked settings AK-LM 330 RS8FR302 © Danfoss 2015-08...
  • Page 74 Electronic controls are no substitute for normal, good engineering practice. Danfoss wil not be responsible for any goods, or plant compo- nents, damaged as a result of the above defects. It is the install- er's responsibility to check the installation thoroughly, and to fit the necessary safety devices.

  • Page 75: Alarm Texts

    The output in question has been put in manual control mode via the AK-ST 500 service tool software MAN DO……… The output in question has been put in manual control mode via the AK-ST 500 service tool software AK-LM 330 RS8FR302 © Danfoss 2015-08...

  • Page 76: Appendix - Recommended Connection

    Saux1 Saux2 Saux3 Saux4 Saux5 Saux6 Saux7 Saux8 Saux9 Saux10 Saux1 Saux2 Saux3 Saux4 Saux5 Saux6 Saux7 Saux8 Saux9 Saux10 up to and including the following number of function can be operated via AKM-software: RS8FR302 © Danfoss 2015-08 AK-LM 330...

  • Page 77: Ak-Lm

    Al.Mute Hi AL Synch Al.Mute Hi AL Synch Al.Mute Hi AL ---*) Hi AL Synch Al.Mute ---*) *) This setting contains so many parameters that the AKM description file can not contain the contents. AK-LM 330 RS8FR302 © Danfoss 2015-08...
  • Page 78 RS8FR302 © Danfoss 2015-08 AK-LM 330...
  • Page 79 AK-LM 330 RS8FR302 © Danfoss 2015-08...
  • Page 80 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 products already on order provided that such alternations can be made without subsequential changes being necessary in specifications already agreed.

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