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RS8GM222 © Danfoss 10-2014

AK-CC 750 - 080Z0130 & 080Z0139

4 LLSV LT

AI Points (Base Module)
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Def Term A

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Dual Temp

Door Sw

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Valve A

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ASH

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Term

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AI Point (Expansion Module)

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Door Sw

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DO Point (Expansion Module)

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ASH

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4 LLSV LT C

Term DI

AI Points (Base Module)
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Dual Temp

Door Sw

DO Points (Base Module)
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Valve A

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ASH

4 LLSV LT I

Term DI

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AI Point (Expansion Module)

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DI Term A

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Dual Temp

Door Sw

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DO Point (Expansion Module)

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ASH

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Def D

4 LLSV MT

AI Points (Base Module)
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Door Sw

DO Points (Base Module)
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Valve A

Valve B

Valve C

Valve D

Fan

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ASH

4 LLSV DT C

Term

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AI Point (Expansion Module)

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Disc Air A

Def Term A

Dual Temp A Disc Air B

Def Term B

Dual Temp B Disc Air C

Def Term C

Dual Temp C Disc Air D

Def Term D

Dual Temp D Door Alarm

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DO Point (Expansion Module)

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Valve A

Valve B

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Valve D

Fan

Light

Def

ASH

4 LLSV DT I

Term

AI Points (Base Module)

AI Point (Expansion Module)

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Disc Air A

Def Term A

Dual Temp A Disc Air B

Def Term B

Dual Temp B Disc Air C

Def Term C

Dual Temp C Disc Air D

Def Term D

Dual Temp D Door Alarm

DO Points (Base Module)

DO Point (Expansion Module)

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Valve B

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Valve D

Fan

Light

Def A

ASH

Def B

Def C

Def D

Содержание 080Z0130

Страница 1: ...Controller for evaporator control AK CC 750 080Z0130 080Z0139 Manual ...

Страница 2: ...ic module 38 Wiring 39 4 Configuration and operation 41 Configuration 43 Connect PC 43 Authorization 44 Unlock the configuration of the controllers 45 System setup 46 Set plant type 47 Definition of thermostat 48 Definition of sections 49 Definition of defrost functions 50 Definition of common functions 51 Configuration of inputs and outputs 53 Set alarm priorities 55 Lock configuration 57 Check c...

Страница 3: ...nd alarm thermostat Defrost on demand based on evaporator capacity Appliance cleaning function Light control using door switch or network signal depending on day night operation Rail heat pulsing depending on day night operation or dew point Monitoring of door alarm and control of light refrigeration depending on location of door switch Log function for registration of historical parameter values ...

Страница 4: ...en systems requirements are changed Flexible concept Controller series with common construction One principle many regulation uses Modules are selected for the actual connection requirements The same modules are used from regulation to regulation Controller Top part Extension modules If the system grows and more functions have to be controlled the regulation can be extended With extra modules more...

Страница 5: ...er of general functions such as time table manual operation log function alarms and service configuration Network linking The controller can be linked up into a network together with other controllers in an ADAP KOOL refrigeration control system AK SC 255 355 or SM850 can be used as a system unit After initial setup operation can be performed from control system 080Z0130 is equiped with LON TP 78 ...

Страница 6: ...s If you wish to confirm that you have seen the alarm you can cross it off in the acknowledge field 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 Adaptive defrost AK CC 750 is equipped with an ...

Страница 7: ... with a specific software and by which input and output signals the relevant application will require If it is an application with few connections the controller module top part with belonging bottom part may be sufficient 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 possibl...

Страница 8: ...hen a regulation is planned set up it will generate a need for a number of connections distributed on the mentioned types This connection must then be made on either the controller module or an extension module The only thing to be observed is that the types must not be mixed an analog input signal must for instance not be connected to a digital input Programming of connections The controller must...

Страница 9: ... between PC and AK controller AK USB Accessories Transformer module 230 V 115 V to 24 V AK PS 075 18 VA 24 V d c Supply for controller AK PS 150 36 VA 24 V d c Accessories External display that can be connected to the controller module For showing say the refrigeration appliances EKA 163B Display EKA 164B Display with operation buttons Cable between display and controller Length 6 5 ft Length 19 5...

Страница 10: ...nductive 3 A U Min 24 V Max 230 V Low and high voltage must not be connected to the same output group Solid state outputs Can be used for loads that are cut in and out frequently e g rail heat fans and AKV valve Max 240 V a c Min 48 V a c Max 0 5 A Leak 1 mA Max 1 AKV Ambient temperature During transport 40 to 158 F During operation 4 to 131 F 0 to 95 RH non condensing No shock influences vibratio...

Страница 11: ...014 11 Dimensions The module dimension is 72 mm 2 83 in 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 mm n x 2 83 0 32 in ...

Страница 12: ...r LON communication Address setting When the controller is connected to a system unit the controller s address must be set between 1 and 200 Scan function When the controller is connected to the data communication cable the system unit must have knowledge of the new controller This is obtained by the scan function in the system unit The LED Status will flash fast when the system unit sends an acce...

Страница 13: ...10 6 AI 6 11 12 7 AI 7 13 14 8 AI 8 19 20 9 AI 9 21 22 10 AI 10 23 24 11 AI 11 25 26 12 DO 1 31 32 13 DO 2 33 34 14 DO 3 35 36 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 Terminal 15 12 V Terminal 16 5 V Terminal 27 12 V Terminal 28 5 V Terminal 17 18 29 30 Cable screen Solid state outputs on 12 15 Relay or AKV coil fx 230 V a c Relay outputs on 16 19 Analog inpu...

Страница 14: ...signals Supply voltage The supply voltage to the module comes from the previous mod ule in the row Supply voltage to a pressure transmitter can be taken from either the 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 ...

Страница 15: ...2050 AKS 32 P0 Pc Paux AKS 32R AKS 2050 1 xx bar AKS 32 1 zz bar U 0 5 V 0 10 V On Off Ext Main switch Day Night Door Defrost Active at Closed Open Point 5 6 7 8 Type AI5 AI6 AI7 AI8 Point 1 2 3 4 Type AI1 AI2 AI3 AI4 Terminal 9 12 V Terminal 10 5 V Terminal 15 5 V Terminal 16 12 V Terminal 11 12 13 14 Cable screen At the top the signal input is the left of the two terminals At the bottom the sign...

Страница 16: ...unction The module contains 8 inputs for on off voltage signals Signal AK XM 102A is for low voltage signals AK XM 102B is for high voltage signals Supply voltage The supply voltage to the module comes from the previous mod ule in the row Light emitting diodes They indicate Voltage supply to the module Communication with the controller is active red error Status of the individual inputs 1 to 8 whe...

Страница 17: ... 1 1 2 2 DI 2 3 4 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 Point Signal Active at DI Ext Main switch Day Night Door Defrost Closed voltage on Open voltage off Point 5 6 7 8 Type DI5 DI6 DI7 DI8 Point 1 2 3 4 Type DI1 DI2 DI3 DI4 AK XM 102A Max 24 V AK XM 102B Max 230 V ...

Страница 18: ...possible to over ride the relay s function Either to position OFF or ON In position Auto the controller carries out the control Light emitting diodes There are two rows with LED s They indicate the following Left row Voltage supply to the controller Communication active with the bottom PC board red error Status of outputs DO1 to DO8 Right row AK XM 204B only Override of relays ON override OFF no o...

Страница 19: ...t Terminal Active at 1 DO 1 25 27 2 DO 2 28 30 3 DO 3 31 33 4 DO 4 34 36 5 DO 5 37 39 6 DO 6 40 41 42 7 DO 7 43 44 45 8 DO 8 46 47 48 Signal Active at DO Fan Alarm Light Railheat Defrost Night blind Valve Compres sor On Off Point 1 2 3 4 5 6 7 8 Type DO1 DO2 DO3 DO4 DO5 DO6 DO7 DO8 ...

Страница 20: ...of relay Eight change over switches at the front make it possible to over ride the relay s function Either to position OFF or ON In position Auto the controller carries out the control Light emitting diodes There are two rows with LED s They mean Left row Voltage supply to the controller Communication active with the bottom PC board red error Status of outputs DO1 to DO8 Right row AK XM 205B only ...

Страница 21: ...type S Pt 1000 ohm 0 C S2 S3 S4 S5 Saux Pt 1000 P AKS 32R AKS 2050 AKS 32 P0 Pc Paux AKS 32R AKS 2050 1 xx bar AKS 32 1 zz bar U 0 5 V 0 10 V On Off Ext Main switch Day Night Door Defrost Active at Closed Open DO Fan Alarm Light Antisweat Defrost Night blind Valve Compr Active at on Off Terminal 9 12 V Terminal 10 5 V Terminal 21 12 V Terminal 22 5 V Terminal 11 12 23 24 Cable screen Point 9 10 11...

Страница 22: ...es for day night change over Fixed defrost times Saving of alarm log in case of power failure Saving of temperature log in case of power failure Connection The module is provided with plug connection Placing The module is placed on the PC board inside the top part Point No point for a clock module to be defined just connect it Working life of the battery The working life of the battery is several ...

Страница 23: ...ccur Connection The extension module is connected to the controller module via a cable with plug connections You have to use one cable per module The cable is supplied in various lengths Both types of display with or without control buttons can be connected to either display output A B C and D When the controller starts up the display will show the output that is connected 1 output A 2 output B et...

Страница 24: ...y for controller Supply voltage 230 V a c or 115 V a c from 100 V a c to 240 V a c Placing On DIN rail Effect Type Output tension Output current Power AK PS 075 24 V d c 0 75 A 18 VA AK PS 150 24 V d c adjustable 1 5 A 36 VA Dimension Type High Width AK PS 075 90 mm 36 mm AK PS 150 90 mm 54 mm Supply to a controller Connections ...

Страница 25: ... 20 21 22 23 Type ASH Light Def Fan Relay output Anti Sweat Heater Light Defrost Fan If the AK CC 750 must be connected to an existing Case Power Module it must be done as follows Connect the Case Power module via the 8 pin Molex connector AK CC 750 are using the following points ...

Страница 26: ... s top part can be with change over switches switches that can override the indi vidual relays into either OFF or ON position Data communication The controller module has terminals for LON data communication The requirements to the installation are described in a separate document Literature number RC8AC Preface to design Be aware of the following when the number of extension modules is being plan...

Страница 27: ... supply When programming the pressure trans mitter s pressure range must be set ON OFF voltage inputs DI This signal must be connected to two terminals The signal must have two levels either 0 V or voltage on the input There are two different extension modules for this signal type low voltage signals e g 24 V high voltage signals e g 115 V When programming the function must be set Active when the ...

Страница 28: ...or appliance functions Make a sketch of the system in question Follow these 12 steps AK CC 750 Application Control of cold room or freezing room x Control of refrigeration or freezing appliances x Regulation of evaporators 1 4 Thermostat function Common thermostat function for all sections x Thermostat function for each section x On off thermostat with AKV or solenoid valve x Modulating thermostat...

Страница 29: ...he function requires signals from S3 and S4 as well as from condensing pressure Pc The expansion valve must furthermore be type AKV The function cannot be used in combination with pulsation of fans If you want to know more about the functions go to chapter 5 A bit more about the functions Common thermostat The thermostat temperature can be either a weighting of the S3 and S4 sensors in section A A...

Страница 30: ...Ref is used if the thermostat reference is to be displaced with a signal from another control On Off inputs Contact function on an analog input or voltage signal on an extension module External start stop of regulation Pulse pressure used for the appliance cleaning function Switch for changeover between two temperature referenc Inject ON Signal from a compressor control Pulse pressure for start of...

Страница 31: ...temperature references Inject ON Start of defrost pulse pressure Door contact Night setback Open close Night blind pulse pressure On off outputs AKV valves 3 Solenoid valves when TEV valves is used Fans 1 Defrost electric or hot gas valves 3 Drain valve suction line valve Antisweat heat 1 Light Night blind Drip tray heat Compressor Alarm Sum of connections for the regulation 15 8 Sum max 80 Number...

Страница 32: ...as started the controller will all the time check whether there is connection to the connected modules This status can be followed by the light emitting diode When the two catches for the DIN rail mounting are in open posi tion the module can be pushed into place on the 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...

Страница 33: ...5 are used for the programming Columns 2 and 4 are used for the connection diagram Example continued Signal Module Point Terminal Signal type Active at Air temperature S3A 1 1 AI 1 1 2 Pt 1000 Air temperature S3B 2 AI 2 3 4 Pt 1000 Air temperature S3C 3 AI 3 5 6 Pt 1000 Air temperature S4A 4 AI 4 7 8 Pt 1000 Air temperature S4B 5 AI 5 9 10 Pt 1000 Air temperature S4C 6 AI 6 11 12 Pt 1000 Defrost s...

Страница 34: ...foss Format dwg and dxf You may then yourself write the module number in the circle and draw the individual connections Example continued AKV A S3A 3 x EKA 163B S3B 1 1 1 2 2 3 3 4 4 5 6 7 8 12 13 14 15 16 17 18 19 S3C S4A S5A S5B S2B S4B S4C AKV B AKV C Fans Def A Def B Def C Rail heat 9 S5C S2C 10 S2A Start stop 11 P0 Case cleaning 2 ...

Страница 35: ...class II The 24 V must not be shared by other controllers or units The analog inputs and outputs are not galvanically separated from the supply The and 24V input must not be earthed Transformer size The power consumption grows with the number of modules used Module Type Number á Effect Controller 1 x 8 8 VA Extension module 200 series _ x 5 __ VA Extension module 100 series _ x 2 __ VA Total ___ V...

Страница 36: ...e between PC and AK controller AK USB 080Z0264 Accessories Transformer module 230 V 115 V to 24 V AK PS 075 18 VA Supply for controller 080Z0053 x AK PS 150 36 VA 080Z0054 Accessories External display that can be connected to the controller module For showing say the appliance temperature EKA 163B Display 084B8574 xxx EKA 164B Display with operation buttons 084B8575 Cable between display and contr...

Страница 37: ...wiring This section describes how the controller Is fitted Is connected We have decided to work on the basis of the example we went through previously i e the following modules AK CC 750 controller module TP 78 version AK XM 101A analog output module 3 pcs EKA 163B display ...

Страница 38: ...e of the AK assembly 2 Assemble the extension module and the basic module The basic module must not be connected to voltage In our example one extension module is to be fitted to the basic module The sequence is thus All the subsequent settings that affect the two extension modules are determined by this sequence When the two snap catches for the DIN rail mounting are in the open position the modu...

Страница 39: ... 5 9 10 Pt 1000 Air temperature S4C 6 AI 6 11 12 Pt 1000 Defrost sensor S5A 7 AI 7 13 14 Pt 1000 Defrost sensor S5B 8 AI 8 19 20 Pt 1000 Defrost sensor S5C 9 AI 9 21 22 Pt 1000 Gas temperature S2A 10 AI 10 23 24 Pt 1000 Evaporator pressure P0 11 AI 11 25 26 AKS32R 12 AKV A 12 DO 1 31 32 AKV B 13 DO 2 33 34 AKV C 14 DO 3 35 36 Fans 15 DO 4 37 38 ON Defrost A 16 DO 5 39 40 41 ON Defrost B 17 DO6 42 ...

Страница 40: ...activate the Service Pin When the controller is set correct on the network the LED sta tus will flash quickly for 10 minutes 6 The controller is now ready to be configured The connections for the example can be seen here Case cleanng The screen on the pressure transmitter cables must only be connected at the end of the controller Warning Keep signal cables separate from cables with high voltage Po...

Страница 41: ...4 41 4 Configuration and operation This section describes how the controller Is configured Is operated We have decided to work on the basis of the example we went through previously i e a frost appliance with 3 evaporators The example is shown overleaf ...

Страница 42: ... sections Refrigeration 3 AKV valves Superheat measured with P0 and 3 S2 sensors S3 is alarm sensor S4 is thermostat sensor Night setback on 5 F Defrost The defrost is stopped individually based on temperature S5 Refrigeration starts when both defrosts have been accomplished Fans Operates during defrost Cleaning Pulse pressure for start and later stop of cleaning Other External start stop used Mai...

Страница 43: ...an overview of it will always appear In this case the overview is empty This is because the controller has not yet been set up 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 For connecting and operating the AK service tool software please see the manual fo...

Страница 44: ...for the specific system and a corresponding access code for this person The controller will utilize the same language that is selected in the service tool but only if the controller contains this language If the language is not contained in the controller the settings and readings will be shown in English When the controller is supplied it has been set with standard authoriza tion for different us...

Страница 45: ... lock can be Unlocked Configuration lock The controller can only be fully configured when the configuration lock is set to Un locked The settings are only applied when it is set to Locked again At this point the controller checks the functions set and compares them with the input and output settings Important settings can then no longer be changed unless the configuration is unlocked again If you ...

Страница 46: ...he language that alarm text should be displayed in here Alarm text can be in a different language to the operating language Clock When the time is set the PC s time can be transferred to the controller 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 General All system settings ...

Страница 47: ...d restart After the restart a large number of settings will have been made These include the con nection points Continue with the settings and check the values If you change some of the settings the new values will come into force Number of evaporators Select the number of evaporators that you want the controller to regulate Valve type Select the relevant type of valve here Either AKV valve or sol...

Страница 48: ...s in the A section 1 valve per evaporator individual ON OFF thermostat Here one valve per evaporator is used The temperature is controlled individual by ON OFF in each evaporator section 1 valve per evaporator individual modulating thermostat Here one valve per evaporator is used The temperature is controlled individually in each evaporator section accord ing to a modulating principle External ref...

Страница 49: ...163B EKA 164B to indicate the appliance temperature for section A Settings are non weighted S3 S4 or product temperature sensor Display unit Select whether you want temperatures and pressure dis played in SI units C or US units F Display S4 discharge Sensor selection for the temperature shown on the display At 100 only S4 is used At a lower value S3 is also used At 0 only S3 is displayed Display O...

Страница 50: ...period between two defrosts in the schedule Fan run during defrost Specify whether the fans should be on during defrost Defrost term method Define whether defrost is to be concluded with Time Temperature individual in each section Temperature common for all sections DI signal individual for each section DI signal common for all sections Defrost term sensor Select the sensor that you want to give t...

Страница 51: ...be ON for during day operation Enter as a percentage of the rail heat pulse period ASH at night Set how long the rail heat should be ON for during night operation Enter as a percentage of the rail heat pulse period Dew point max limit At a dew point above this value rail heat is 100 Dew point min limit At a dew point below this value rail heat is controlled with the next setting Min ON ASH Min ON ...

Страница 52: ... is triggered Light control Select whether the light should be controlled by a door switch a day night signal or by a signal via data communication Light at Main SW Off Choose whether the light is to be switched off when the main switch is set to off or if the light is to follow the standard light control Control of Blinds control Set whether the blinds are to be controlled by a relay Open close b...

Страница 53: ...Mod ule Point Active at AKV A DO1 1 12 AKV B DO2 1 13 AKV C DO3 1 14 Fan DO4 1 15 ON Defrost A DO5 1 16 ON Defrost B DO6 1 17 ON Defrost C DO7 1 18 ON Anti sweat heaters DO8 1 19 ON We set up the controller s digital outputs by keying in which module and point on this module each one of these has been connected to We furthermore select for each output whether the load is to be active when the outp...

Страница 54: ...AKS 32 1 12 Bar AKS 32R 1 12 Bar AKS 32 1 20 Bar AKS 32R 1 20 Bar AKS 32 1 34 Bar AKS 32R 1 34 Bar AKS 32 1 50 Bar AKS 32R 1 50 Bar AKS 2050 1 59 Bar AKS 2050 1 99 bar AKS 2050 1 159 bar Voltage signals for reference displacement Ext Ref Signal Setting 0 5 V 1 5 V 0 10 V 2 10 V Sensor Input Module Point Type Air temperature S3 A AI1 1 1 Pt 1000 Air temperature S3 B AI2 1 2 Pt 1000 Air temperature ...

Страница 55: ...relevant alarms that are current They will be shown with text in the three pictures All alarms that can occur can be set for a given order of priority High is the most important one Log only has lowest priority Disconnected gives no action The interdependence between setting and action can be seen in the table Setting Log Alarm relay selection Net work AKM dest Non High Low High High X X X X 1 Med...

Страница 56: ...56 RS8GM222 Danfoss 10 2014 AK CC 750 080Z0130 080Z0139 5 Set Alarm priorities for Various alarms Configuration continued In our example we select the settings shown here in the display ...

Страница 57: ...e 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 Configuration continued Press in the field against Configuration lock Select Locked The setup of the controller has now been locked If you subsequently want to make any changes in the controller s setup remember first to unlock the configuration ...

Страница 58: ...t does not exist The selected point number on the selected mod ule had been set up for something different The error is corrected by setting up the output correctly Remember that the setup must be unlocked be fore you can change module and point numbers The settings are shown on a RED background If a setting has turned red you must control the setup again This may be due to the following The input...

Страница 59: ...utputs have been connected as expected This controls requires that the setup is locked By means of the manual control of each output it can be checked whether the output has been correctly connected Activate the various functions e g the main switch Check that the controller registers the activation i e whether the ON OFF value is changed in the last column Check the other digital inputs in the sa...

Страница 60: ...starts we check that all the settings are as they should be The overview display will now show one line for each of the general functions Behind each icon there is a number of displays with the different settings It is all these settings that have to be checked Remember the settings at the bottom of the pages the ones that can only be seen via the Scroll bar Remember the settings at the bottom of ...

Страница 61: ... display Press the blue overview button at the bottom left of the display and then press the defrost symbol 10 Settings for defrost 11 Go to defrost schedule Press the schedule button to continue to the defrost schedule Check of settings continued Remember the settings at the bottom of the pages the ones that can only be seen via the Scroll bar Remember the settings at the bottom of the pages the ...

Страница 62: ...ts Use the copying functions if there are several days with identical defrosts The end result with two defrosts per 24 hours can be seen here above 14 Go to common functions Press the blue overview button at the bottom left of the display and then on common functions 15 The settings for the common functions Go through the individual functions 16 The controller setup has been completed Check of set...

Страница 63: ...point at 3 The arrow of the two other address switches must point at 0 2 Push the Service Pin Press down the service pin and keep it down until the Service Pin LED lights up 3 Wait for answer from the system unit Depending on the size of the network it may be up to one minute before the controller receives an answer as to whether it has been installed in the network When it has been installed the ...

Страница 64: ... cross to remove cancelled alarms from the alarm list 5 Check active alarm again In our case we have a series of alarms We will tidy them up so that we only have those that are relevant In our case an active alarm remains because the control has stopped This alarm must be active when control has not started We are now ready for the startup of control Please note that active plant alarms are automa...

Страница 65: ...he bottom of the display 2 Start control First start of control continued Press in the field against Main switch Select ON Press OK The controller will now start the controlling when the external function switch is also activated to ON If you wish to start an extra defrost cycle it can be done via this display and also from the defrost screen ...

Страница 66: ...Press the button to go on to the next page The top line gives access to definition of new logs and to changes of already established logs The next line enables you to see a selection of the defined logs Here is the start display for new logs Start by defining which type of log has to be defined Here it is determined which parameters have to be included in the setup of data Select a function here t...

Страница 67: ...on Move to the first of the three displays and start the log collec tion Here is the survey of all the parameters that are collected in the log If a parameter has to be removed from the log collection you must select the parameter and then press Remove If a parameter has to be added it is done in accordance with the earlier display A LOG CAN ONLY BE DISPLAYED IF THE CLOCK HAS BEEN SET AND THE CONF...

Страница 68: ...68 RS8GM222 Danfoss 10 2014 AK CC 750 080Z0130 080Z0139 ...

Страница 69: ...AK CC 750 080Z0130 080Z0139 RS8GM222 Danfoss 10 2014 69 5 Regulating functions This section describes how the different functions work ...

Страница 70: ...y refrigeration A specific function for registration of the need for defrost will adapt the number of defrosts so that no energy is wasted on un necessary defrosts and subsequent cooling down cycles Among the different functions can briefly be mentioned Control of up to four evaporator sections Electronic injection with AKV valve ON OFF or modulating temperature control Weighted thermostat and ala...

Страница 71: ...ON OFF One common valve for all evaporators common ON OFF ther mostat A line up of refrigeration appliances which are to be regulated to the same temperature is a typical example The temperature is controlled according to the ON OFF principle in accordance with the thermostat settings in section A The thermostat can control the temperature via a signal from the S3 S4 sensors in section A or min ma...

Страница 72: ...minimum possible stable superheating This ensures that the cooling process takes place as quickly as possible In the case of stable loads the thermostat will reduce the open ing time for the AKV valve so the through flow of refrigerant is restricted to precisely the amount that is required to maintain the temperature at the required reference area control The reference temperature will be the set ...

Страница 73: ...e is controlled on the basis of the air temperature sen sors S3 S4 or both Definition of the thermostat temperature takes place using one setting which is based on the S4 value With a setting of 100 only the S4 measurement will be used With a setting of 0 only S3 will be used With a value between 0 and 100 both measure ments will be used If AKV valves are used at least one sensor must always be us...

Страница 74: ...ation is to take place When a Night blind is used the distribution of air in the appliance will change radically A change of the thermostat s weighted S3 S4 ratio will therefore be required As a rule the S4 share is set at a lower value during the night than during the day The thermostat reference can be displaced via an external voltage signal which is particularly useful for process cooling The ...

Страница 75: ...ime delays are set for alarms For too low temperature For too high temperature during normal regulation For too high temperature during cooling down after activation of internal or external start stop during a defrost after a power failure after appliance cleaning The time delay will apply until the actual air temperature has dropped below the upper alarm limit Example IN Thermostat cut in value O...

Страница 76: ...n the appliance control One where the effect must be max i e 100 One where the effect must be min At a dew point which is equal to or lower than the value the effect will be the value indicated in ASH min ON In the area between the two dew point values the controller will manage the power to be supplied to the rail heat The current dew point and duty cycle for ASH can be read off as status values ...

Страница 77: ...ossible cleaning can be started with a defrost sequence When appliance cleaning is activated a cleaning alarm is trans mitted to the normal alarm recipient A later processing of these alarms will document that the appliance has been cleaned as often as planned The function saves information on when the last appliance cleaning was carried out and how long it lasted Appliance shutdown This function ...

Страница 78: ...in One pressure transmitter can supply signals to several controllers if they regulate refrigeration points on the same suction line But if a valve is mounted in an evaporator s suction line say a KVP KVQ or PM the pressure transmitter must be placed before the valve The signal can now only be used by the relevant controller Refrigerant Before regulation can be commenced the refrigerant must be de...

Страница 79: ...oller regulates valves in the liquid line hot gas valves a suction line valve and a drain valve Defrost start Defrost can be started in several ways Once started it will continue until a defrost stop signal is received Manual defrost Manual defrost can be enabled via a setting in the controller or via the bottom button on the display After activation the setting moves back to position OFF when the...

Страница 80: ...and S5 2 The defrost is stopped when both temperatures have at tained the set value If the defrost time exceeds the set max defrost time the defrost stops This will happen even if the defrost stop temperature has not been reached max defrost time will function as safeguard When the defrost is stopped on time the alarm message Max def period exceeded will appear for the section in question If the a...

Страница 81: ...is set The time delay for fan start will not commence until the time delay for liquid injection if applicable has run out Only when all the S5 sensors register a lower temperature than the set will the fans be started If all S5 sensors do not register a lower temperature than the set by the delay time has elapsed the fans will start At the same time alarm is given that Maximum delay time for fan i...

Страница 82: ...P10 R13B1 or user defined This function can only cancel planned defrosts which start from a defrost schedule either an internal schedule or an external schedule in the system unit Other defrost start signals will always result in defrost This function will only cancel defrost if all evaporator sections so permit Function selection This function can be set to operate in one of the following ways 0 ...

Страница 83: ...ice formation on the evapora tor but it may also be due to reduced air flow as a consequence of severe over stacking of goods or dropout of fans After this alarm the function will not cancel defrosts This alarm is removed at the start of the next defrost at which point cancellation of defrosts will be permitted again Sensor error The controller cannot carry out a tuning calculation for use in the ...

Страница 84: ...pressure based on the appliance with the heaviest load Forced refrigeration The controller will undertake refrigeration when this signal is received Refrigeration will continue until the signal is removed Sensor correction The input signal from all connected sensors can be corrected Anti sweat heaters The anti sweat heater control can be overridden Display signal The air temperatures measured at t...

Страница 85: ...ons which appear at the end of the manual After configuration of this function the controller will shut down and restart 4 Once the controller has restarted open parameter 093 and the configuration lock is opened value 0 5 If AKV valves are used you must also select refrigerant via parameter o30 6 Open parameter r12 and start regulation 7 When there is a network set the address for the address swi...

Страница 86: ...Regulating status The controller goes through some regulating situations You can see the actual situation here When operating with AK ST the text is written on the screen for the section When operating from AKM the operating status is a numerical value The values are as follows 0 Refrigeration stopped from Main Switch 1 Start up phase for the injection function 2 Adaptive regulation of the superhe...

Страница 87: ...AK CC 750 080Z0130 080Z0139 RS8GM222 Danfoss 10 2014 87 ...

Страница 88: ...ressure faulty Various alarms Standby mode Medium Control stopped MainSwitch OFF The control has been stopped via the setting Main switch ON or via the external Main switch input Refrigerant changed Low Refrigerant changed The refrigerant setting has been changed Case cleaning High Case cleaning initiated A case cleaning has been initiated Door open pre alarm Low Door open pre alarm The door has b...

Страница 89: ...en activated Medium Alarm route failure Alarms can not be transmitted to alarm receiver check communication High Alarm router full The internal alarm buffer has an overrun this might occur if the controller can not send the alarms to the alarm receiver Check communication between controller and AKA gateway Medium Device is restarting The controller is restarting after flash updating of the softwar...

Страница 90: ... A Disc Air B Evap Out B Def Term B Disc Air C Evap Out C DO Points Base Module 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 EEV A EEV B EEV C EEV D Fan Light Def ASH 5 Uncon nected DOs OK 4 EEV LT NoTerm AI Points Base Module 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 Disc Air A Evap Out A Disc Air B Evap Out B Disc Air C Evap Out C Disc Air D Evap Out D DO Points Base Module 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1...

Страница 91: ...10 1 11 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 Def Term C PE Pressure Door Sw Disc Air D Evap Out D Def Term D DO Point Expansion Module 2 9 2 10 2 11 2 12 2 13 2 14 2 15 2 16 Def B Def C Def D 1 9 1 10 1 11 Dual Temp PE Pressure Door Sw AI Point Expansion Module 1 9 1 10 1 11 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 DI Term C PE Pressure Door Sw Disc Air D Evap Out D DI Term D Dual Temp DO Point Expansion Module...

Страница 92: ... A Disc B Dt B Disc C Dt C Disc D Dt D DO Points Base Module 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 Valve A Valve B Valve C Valve D Fan Light DEF ASH 13 4 EEV Ind Term AI Points Base Module 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 Disc A Dt A Disc B Dt B Disc C Dt C Disc D Dt D DO Points Base Module 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 Valve A Valve B Valve C Valve D Fan Light Def A ASH 14 4 EEV AD C T...

Страница 93: ... EpO B EpO C EpO D DO Point Expansion Module 2 9 2 10 2 11 2 12 2 13 2 14 2 15 2 16 Def B Def C Def D AI Point Expansion Module 1 9 1 10 1 11 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 Rt A PE dr Sw Rt B Rt C Rt D EpO A EpO B EpO C EpO D DO Point Expansion Module 2 9 2 10 2 11 2 12 2 13 2 14 2 15 2 16 AI Point Expansion Module 1 9 1 10 1 11 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 Rt A PE dr Sw Rt B Rt C Rt D EpO A E...

Страница 94: ...ight Def ASH 21 4 LLSV LT I Term DI AI Points Base Module 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 Disc Air A DI Term A Disc Air B DI Term B Disc Air C DI Term C Disc Air D DI Term D DO Points Base Module 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 Valve A Valve B Valve C Valve D Fan Light Def A ASH 22 4 LLSV MT AI Points Base Module 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 Disc Air A Disc Air B Disc Air C Disc Air D D...

Страница 95: ...4 2 5 2 6 2 7 2 8 Dual Temp Door Sw DO Point Expansion Module 2 9 2 10 2 11 2 12 2 13 2 14 2 15 2 16 Def B Def C Def D 1 9 1 10 1 11 Door Sw AI Point Expansion Module 1 9 1 10 1 11 2 1 2 2 2 3 2 5 2 6 2 7 2 8 Dual Temp C Disc Air D Def Term D Dual Temp D Door Alarm DO Point Expansion Module 2 9 2 10 2 11 2 12 2 13 2 14 2 15 2 16 AI Point Expansion Module 1 9 1 10 1 11 2 1 2 2 2 3 2 5 2 6 2 7 2 8 D...

Страница 96: ...ss 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 All trademarks in this material are property of the respecitve companies Danfoss and Danfoss logotype are trademarks of Danfoss A S All rights reserved ...

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