Danfoss AKC 25H1 Скачать руководство пользователя страница 24 | Manualshive

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Function description

RC.1J.Z4.02

©

Danfoss

09/1999

AKC 25H1

List of literature

Technical brochure AKC 25H1, AKC 25H3 and AKC 25H5 ........................................ RC.1J.4

Catalogue. Pressure transmitters type AKS 32 ............................................................ RK.00.H

Catalogue. Temperature sensors ................................................................................ RK.00.H

Function description AKC 25H1 (this document) ......................................................... RC.1J.Z

Function description AKC 25H5 ................................................................................... RC.1J.5

Installation guide for Data communication cable ......................................................... RC.0X.A

Mounting instructions AKC 25H1 (bypacked unit) ....................................................... RI.1J.T

Mounting instructions AKC 25H5 (bypacked unit) ....................................................... RI.1J.Z

Mounting instructions AKC 22H (bypacked unit) ......................................................... RI.1J.U

Menu operation via AKA 21, AKC 25H1 (software-based) .......................................... RC.1J.X

Menu operation via AKA 21, AKC 25H5 (software-based) .......................................... RC.1J.2

Menu operation via AKM, AKC 25H1 (software-based) .............................................. RC.1J.V

Menu operation via AKM, AKC 25H5 (software-based) .............................................. RC.1J.3

Table for entry of menu settings AKC 25H1 (bypacked unit) ....................................... RI.1J.V

Table for entry of menu settings AKC 25H1 (bypacked unit) ....................................... RI.1J.3

Table for entry of menu settings AKC 25H5 (bypacked unit) ....................................... RI.1J.0

Table for entry of menu settings AKC 25H5 (bypacked unit) ....................................... RI.1J.1

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.
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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Содержание AKC 25H1

Страница 1: ...RC 1J Z3 02 RC 1J Z4 02 09 1999 Compressor Pack Controller AKC 25H1 ADAP KOOL Function description ...

Страница 2: ...inition 9 Signal from the condenser s safety controls 10 Hourmeter 10 Forced control of condenser capacity 10 Overriding 11 Monitoring 12 Monitoring of maximum discharge gas temperature 12 Monitoring of maximum discharge pressure 12 Monitoring of minimum suction pressure 13 Monitoring of suction gas superheat 13 Monitoring of the different parts of the compressor s safety circuit 14 Monitoring of ...

Страница 3: ...steps and condenser steps as required There are nine digital imputs for monitoring the various automatic controls The inputs can be defined to monitor compressors condensers or other ON OFF signals at your option If failure of a compressor is registered the controller will control the capacity with the remaining compressors When the compressors stop signals may be transmitted to the electronic exp...

Страница 4: ... 21 operation Setting of the different functions is performed via a menu system The menu system is built up on several levels where you change around between the different menus by means of arrow keys The complete list of menus is contained in the document Menu operation via AKA 21 Cf list of literature PC operation Operation takes place from a PC where Microsoft Windows and System Software type A...

Страница 5: ...l P0 SP C ___ External displacement of reference The reference for the regulation can be displaced by means of two functions 1 An external voltage signal transmitted to the EXT REF terminal The voltage must be 0 10 V With this signal the reference can be displaced by up to 50 K in positive or negative direction 10 V gives max displacement The reference change is damped with a time constant of appr...

Страница 6: ...same compressor number it will be the relay with the lowest number that stops and starts the compressor The subsequent relays will control the individual unloaders Output Configuration DO Relay No DO Type 1 1 compressor DO Dev No Example A system consists of two compressors One with three steps and one with two steps The definition here is performed as follows Output Configuration DO Relay No 1 DO...

Страница 7: ... capacities of the same size are cut in or out but it is not a requirement Regulation can also be carried out on compressors with several steps At the different starts the compressor with the lowest amount of run time will be started first At the different stops the compressor with the highest amount of run time will be stopped first For compressors with several steps there will be no changes of t...

Страница 8: ...ating functions The input is however used for the night setback signal when the regulation has to change between two different suction pressures A short circuited input raises the suction pressure If data are to be logged from the input it cannot at the same time be used as signal input for the change between the two suction pressures The service function is used for displaying the temperature val...

Страница 9: ... transmitter Pc Condenser Capacity Ctrl Settings Condenser Ctrl Pc SP C ___ Neutral zone and regulating band The neutral zone is set The zone and zone bands are set The time delay for the zone and zone bands is set The time delay for the zone and zone bands is set Condenser Capacity Ctrl Settings Condenser Ctrl NZ K ___ Zone K ___ Zone s ___ Zone s ___ Zone K ___ Zone s ___ Zone s ___ Condenserdef...

Страница 10: ...ondenser step are defined Input Configuration Alarm input No 1 9 DI Type 2 2 condenser DI Dev No ___ A time delay must be defined for the period from the alarm is registered until it is transmitted Input Configuration Alarm input No 1 9 DI Del m ___ Hourmeter The run time of the different outputs is registered by a counter This registration can be displayed and reset if required Output Configurati...

Страница 11: ...ust be supplied via the AKC ON relay switches This relay is operated during normal operation The AKC ON relay cuts out when all compressor steps are stopped E g when the function switch Main Sw on AKC 25H1 has been put in position 0 the Main Switch input is broken or during normal regulation when one of the monitoring functions has cut out the regulation Or the ON signal can be transmitted via the...

Страница 12: ...ure has dropped to the 10 K below the limit value Safety functions Limits with 1 Priority Sd Max C ___ Monitoring of maximum discharge pressure The function cuts in all condenser steps and gradually cuts out compressor steps if the condensing pressure exceeds the permitted value The cut out limit can be defined in the range between 30 and 70 C The condensing pressure is measured with the pressure ...

Страница 13: ... functions Monitoring of max discharge temperature max discharge pressure and min suction pressure After a cut out regulation cannot commence again until the time delay has expired The time delay starts when the temperature has again dropped to 10 K and 3 K respectively below the limit value Or when the pressure has risen above the P0min value The time delay can be defined in the range between 0 a...

Страница 14: ...n Signal from the safety controls All alarm modules are double i e one module can monitor two safety circuits Each circuit is connected to a DI input on AKC 25H1 Only inputs DI1 to DI8 can be used as inputs from an alarm module DI9 is only for monitoring of other automatic controls Monitoring of other automatic controls The controller is provided with nine digital inputs Some of the inputs are use...

Страница 15: ...witch for the Main Switch input must be connected If it is not used the input must be shortcircuited There are two menu groups that only can be set when the MAIN SWITCH input is interrupted The two groups are the following InputConfiguration and OutputConfiguration The combination of internal and external switch is as follows Regulation is only carried out when both switches are in pos ON internal...

Страница 16: ...rning Incorrect selction of refrigerant can cause damage to the compressor Main function Rfg type 1 23 Rfg type ___ Rfg Fac a1 ___ Rfg Fac a2 ___ Rfg Fac a3 ___ A subsequent change of refrigerant can only be performed in this way Select new type The controller reports an error Interrupt supply voltage to the controller Wait five seconds Reconnect supply voltage Regulation can be started again Othe...

Страница 17: ... alarm message Standby mode to indicate that regulation has stopped and that all outputs are in pos OFF 2 Manual control is put in pos ON Service Mode Manual control output Man ctrl ON Service function is activated The individual outputs can now be controlled by force DO1 Relay ON OFF setting of relay outputs DO1 DO9 If a compressor with unloaders has been connected one of the outputs will control...

Страница 18: ...number of starts the past 24 hours Condenser regulation Pc C Actual discharge pressure in C Pc Ref C Discharge pressure reference in C Cond Cap Actual cut in condenser capacity Req Cap Condenser capacity reference Controller data Code no Controller s code number and software version System address Controller s system address set from a PC Address Controller address set on the controller s switches...

Страница 19: ... 0 0 Suppressed information This information stops at the controller It is not transmitted anywhere List of alarm activities m r a l A e c n a t r o p m i m r a l A s u t a t s 1 H 5 2 C K A y a l e r m r a l a 1 H 5 2 C K A D E L m r a l a 1 2 A K A D E L 4 4 2 3 4 2 A K A y a l e r 2 O D 1 m r a l A F F O S E H S A L F S E H S A L F n i m 2 F F O m r a l a o N N O F F O F F O N O 2 m r a l A N O...

Страница 20: ...mp too high 1 2 0 The discharge gas temperature is too high The compressor has stopped Wait for a temperature drop Suction gas SH too high 1 2 0 The superheat is too high Check the injection function Suction gas SH too low 1 2 0 The superheat is too low Check the injection function Px Error 1 Pressure transmitter interrupted shortcircuited or not mounted In case of an error the controller will sto...

Страница 21: ...ump Current fault Faulty supply voltage Check the earth leakage circuit breaker Flow pump fault Fault in the refrigerant circulation Check the refrigerant pump High condensate level Drip tray level too high Check the drip tray Liquid flow switch Error report from the liquid flow switch Check the flow switch Low liquid level Low refrigerant level Check the amount of refrigerant Phase fault Faulty s...

Страница 22: ...er is given an address so that the unit is defined in the system Setting of the address is performed directly in each controller via a number of switches cf instructions Network systems A defined PC or AKA 243 244 with printer will here be the receiver of alarms for the connected units Each controller is given an address so that the unit is defined in the system Setting of the address is performed...

Страница 23: ...t is possible to show auxiliary texts in the display for a few functions This is done by pushing the key Help when the required function is shown in the display A brief text will now appear which describes the setting For example Function is shown Push Help Auxiliary line 1 appears Push Auxiliary line 2 appears etc Finish by pushing and you will return to the function In the menu is shown which fu...

Страница 24: ... software based RC 1J 2 Menu operation via AKM AKC 25H1 software based RC 1J V Menu operation via AKM AKC 25H5 software based RC 1J 3 Table for entry of menu settings AKC 25H1 bypacked unit RI 1J V Table for entry of menu settings AKC 25H1 bypacked unit RI 1J 3 Table for entry of menu settings AKC 25H5 bypacked unit RI 1J 0 Table for entry of menu settings AKC 25H5 bypacked unit RI 1J 1 Danfosscan...

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