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Installation manual

Modbus adapter

English

Installation manual

Modbus adapter

EKMBPP1

Содержание EKMBPP1

Страница 1: ...Installation manual Modbus adapter English Installation manual Modbus adapter EKMBPP1 ...

Страница 2: ...1 5 3 1 To install the Modbus adapter with the KRP1BC101 installation box 11 5 3 2 To install the Modbus adapter PCB with field supplied casing 13 5 4 Connecting the electrical wiring 13 5 4 1 Overview of electrical connections 14 5 4 2 To connect the power supply 15 5 4 3 To connect the P1P2 wiring 16 5 4 4 To connect the RS485 wiring 17 6 Configuration 18 6 1 Status LEDs 18 6 2 P1P2 communicatio...

Страница 3: ...agram 35 10 Appendix 36 10 1 Modbus addresses 36 1 About this document Target audience Authorised installers About the documentation The instructions delivered with the kit are intended to guide you through the installation of the EKMBPP1 adapter into a KRP1BC101 installation box and through the connection and configuration of the EKMBPP1 adapter Read this installation manual prior to use and keep...

Страница 4: ...ctions Format paper supplied in the kit Latest revisions of the supplied documentation may be available on the regional Daikin website or via your dealer The original instructions are written in English All other languages are translations of the original instructions 2 Specific installer safety instructions Always observe the following safety instructions and regulations General DANGER All wiring...

Страница 5: ...ROCUTION Do NOT connect or turn on power supply before you have mounted the adapter connected the electrical wiring and have closed the adapter DANGER RISK OF ELECTROCUTION When powered by the indoor unit or any other non SELV Safety Extra Low Voltage power supply all external wiring and electrically attached devices MUST be double insulated to prevent access by non qualified persons When this is ...

Страница 6: ...fire electrical shock or injury Do NOT allow the adapter to get wet or use it when bathing or doing similar activities with water This can cause electrical shock or fire Do NOT use the adapter near medical equipment or persons using cardiac pacemakers or defibrillators This can cause life threatening electromagnetic interference Do NOT use the adapter near auto control equipment such as automatic ...

Страница 7: ... speed operation mode airflow direction on off state Control over the lock state of individual remote controller buttons Control limiting limit possible user adjustments to specified ranges Control over settings specific to VAM and VKM units fan speed damper control on off state Unit monitoring group and individual readback of unit data Smart Grid control on Sky Air ranges 3 1 Components GND DB DA...

Страница 8: ...20 mA maximum 3 W Operating temperature 10 C 50 C Storage temperature 25 C 70 C Relative humidity maximum 95 at 40 C non condensing 3 3 Compatibility Make sure the indoor unit is compatible with the kit For an exhaustive list of compatible models and the corresponding required installation box see the compatibility matrix or data book of the indoor unit or the general catalogue ...

Страница 9: ...ual 9 EKMBPP1 Modbus adapter 4P720139 1B 2023 09 4 About the box 4 1 To unpack the adapter b a c e d a EKMBPP1 Modbus adapter PCB b Installation manual c PCB clamp 4 d Cable gland and locknut M20 1 5 e Wire harness for power supply 2 ...

Страница 10: ...us adapter is connected including any countermeasures remain applicable For systems NOT using R32 refrigerant this Modbus adapter can be the only and main remote controller connected For systems using R32 refrigerant the installation of additional remote controllers may be required 5 2 Preparing the installation site The EKMBPP1 is an option PCB The installation procedure and installation location...

Страница 11: ...ll the Modbus adapter PCB with field supplied casing 4 13 and the installation manual of that casing 5 3 1 To install the Modbus adapter with the KRP1BC101 installation box The steps below only describe the procedure for the KRP1BC101 installation box 1 Open the KRP1BC101 installation box 2 Replace the left black cable entry ring on the KRP1BC101 installation box with the cable gland and locknut M...

Страница 12: ... oriented on top of the box insert the power supply cable the RS485 cable and the P1P2 cable through the right cable gland from the outside of the box to the inside Inside the box the cables must split again into three separate cables so they can reach their respective terminals without any strain as shown on the following figure Connect the wiring to the PCB For more information also see 5 4 Conn...

Страница 13: ...lation box Make sure the box is mounted onto the indoor unit for earthing as described in the KRP1BC101 manual 5 3 2 To install the Modbus adapter PCB with field supplied casing In case of field supplied casing EKMBPP1 MUST be installed using A double insulated plastic box or A metal box which is earthed properly to be compliant to the applicable electrical safety norm DANGER RISK OF ELECTROCUTION...

Страница 14: ...anual of the indoor unit Only use harmonised wire providing double insulation suitable for the applicable voltage 1 m wiring harness included as accessory Wire size 0 32 1 25 mm Maximum length 10 m Voltage see 3 2 Basic parameters 48 a a When not powering the kit from the unit make sure the external power supply adheres to the power supply specification Indoor unit P1P2 Connector X7M screw termina...

Страница 15: ...r unit PCB For Sky Air units connect to X35A on the indoor unit PCB For VRV units connect to either X18A or X35A on the indoor unit PCB See the indoor unit installer reference guide to determine the correct terminal For VAM units connect to either X11A X18A or X35A on the VAM PCB 1 Connect the wiring harness EKMBPP1 accessory to screw terminal X1A on the EKMBPP1 2 Connect the other end of the wiri...

Страница 16: ... the user interface is connected to P1P2 For more information see the installation manual of the indoor unit The 2 wires from the cable are NOT polarised When connecting them to the terminals their polarity does NOT matter 1 Connect indoor unit terminals P1 and P2 to the EKMBPP1 terminals P1 and P2 on the X7M connector P1 P2 1 P1 P2 2 P1 P2 P1 P2 X7M P2 NC P1 2 Ensure strain relief by routing the ...

Страница 17: ... of the unit for more information Only 1 Modbus master is allowed 5 4 4 To connect the RS485 wiring The RS485 D Bus MUST be installed using a twisted pair cable as shown in the following figure to connect terminals DA and DB Terminal DA MUST be connected to all other DA terminals on every EKMBPP1 kit Terminal DB MUST be connected to all other DB terminals on every EKMBPP1 kit The common terminal g...

Страница 18: ...ngs 423 6 Configuration 6 1 Status LEDs The EKMBPP1 has 5 LEDs that display information about the current status See 3 1 Components 4 7 for the location of the LEDs on the PCB LED Description LED1 Status LED 1 A LED2 Status LED 2 B LED3 Indicates receiving P1P2 communication a LED4 Indicates receiving Modbus RS485 communication a HAP Indicates normal CPU operation b a LED blinks for 20 40 ms every...

Страница 19: ...23 09 LED 1 and LED 2 behaviour LED2 LED1 LED2 LED1 LED2 LED1 LED2 LED1 LED2 LED1 LED2 LED1 a b c d e f LED 1 Green LED LED 2 Red LED LED ON LED ON LED OFF a Power up sequence b No error c P1P2 search mode d Unit error e U5 error AC unit is missing f RS485 communicaton timeout ...

Страница 20: ...ote controller The adapter then switches to Main mode if no initial command is received for 90 seconds after power ON In Main mode the adapter performs auto addressing and attempts to assign addresses to indoor units If there is no response the adapter will try to auto address again If there is still no response the adapter will switch back to Sub mode Upon switching back to Sub mode the adapter l...

Страница 21: ...lse 1 True Integer 0 65535 No value scaling required Temperature 0 65535 To allow for greater precision temperatures values are returned multiplied by 100 Negative temperature values are returned as signed integers Any value 32767 is to be converted into a negative value by subtracting 65536 from it a a For example a readback value of 2050 is a positive temperature 32767 2050 100 20 50 C However a...

Страница 22: ...EDs indicate an RS485 communication timeout For more information about LED behaviour see 6 1 Status LEDs 418 DIP switch setting Timeout configuration ON 1 2 3 4 5 6 7 8 9 10 No Modbus master timeout ON 1 2 3 4 5 6 7 8 9 10 No Modbus master timeout ON 1 2 3 4 5 6 7 8 9 10 Modbus master timeout in case no holding register write command occurs for 120 seconds All units switch on with the current sett...

Страница 23: ...on of the slide switches on the PCB Terminating resistor setting Resistance Ω OFF ON SS1 SS2 SS3 0 OFF ON SS1 SS2 SS3 100 OFF ON SS1 SS2 SS3 120 6 4 Control functions 6 4 1 Unit control Holding registers allow the EKMBPP1 to control the functions of Sky Air and VRV air conditioning units that are available from the standard remote controller For more information about the types of registers and po...

Страница 24: ...gs only values 1 3 and 5 Low Medium and High are applicable e When the indoor unit fan speed is set to Auto the register will read 5 High f If the indoor unit enters an Operation mode that is not defined the register value will not be updated g If the value is out of range it will be ignored h In case of ventilation units i If the indoor unit enters an Airflow direction that is not defined the reg...

Страница 25: ... Modbus holding register only occurs when a change is made Update mode 3 OnChange is used when repeated writes to the Modbus holding register occur but unit setting updates will ONLY be sent to the unit if the value written to the register changes If an undefined value is written to the Control update mode register the Modbus adapter will not execute any control over the corresponding item INFORMA...

Страница 26: ...et to 0 no control limiting is applied The inhibit values for fan speed mode and airflow direction are calculated by adding together the individual inhibit values for each setting to be inhibited Example You want to limit the possible operation modes someone can select with the remote controller or a central controller to Heating and Cooling The inhibit values of the Auto Fan and Dry modes are add...

Страница 27: ...ddition to the standard unit control functions see 6 4 1 Unit control 423 the EKMBPP1 can be used to control functions specific to VAM and VKM units The following holding registers are available Holding register Address Name Range Description H0030 40031 Ventilation Mode 0 2 a 0 Auto 1 Cross flow Heat recovery 2 Bypass H0031 40032 Ventilation Rate 1 2 b 1 Low 2 High a If the value is out of range ...

Страница 28: ...ister value is fixed at 0 INFORMATION The remote controller temperature sensor value I0050 is only available if there is only 1 indoor unit on the P1P2 network In addition the remote controller if present has to be configured as Sub When there are multiple indoor units or when the remote controller if present is configured as Main the register is fixed at 0 6 5 2 Group readback Group data register...

Страница 29: ...nd Cooling operation mode the register will read 2 Cooling b Indicates an indoor unit in pressure equalisation Hot start Pre heat or an outdoor unit in Defrost operation 6 5 3 Unit readback Unit data is available for each of the indoor units connected to the P1P2 network The first two digits of the unit input register indicate the indoor unit number 0 15 1 1 16 The unit number 1 is multiplied by 1...

Страница 30: ...4 31625 I0130 30131 I1630 31631 I0131 30132 I1631 31632 I0132 30133 I1632 31633 6 5 4 Error codes The error codes generated by the EKMBPP1 are encoded using a standard table to allow standard Daikin error codes to be generated from the readback value Code value Meaning 0 Waiting for data 255 No error 14384 80 Group error timeout on no units found 14388 84 Unit missing reported if unit data previou...

Страница 31: ...rt Grid intervention The unit operates normally respecting any local and scheduled configuration Forced off blocked operation There is a Smart Grid request to switch the unit OFF All units connected to the adapter are switched OFF Recommended on There is a Smart Grid request to consume power if possible All units connected to the adapter are switched ON Room buffering space heating cooling will be...

Страница 32: ...ed regardless of any set remote controller limits Setpoint restrictions can also be set from another centralised controller or a remote controller These restrictions will overrule the Smart Grid setpoint change and thus deactivate the Smart Grid request INFORMATION After a power failure of the adapter check the setpoint on the remote controller to make sure the unit is operating as expected If the...

Страница 33: ...er to get wet or use it when bathing or doing similar activities with water This can cause electrical shock or fire Do NOT use the adapter near medical equipment or persons using cardiac pacemakers or defibrillators This can cause life threatening electromagnetic interference Do NOT use the adapter near auto control equipment such as automatic doors or fire alarm equipment This can cause accidents...

Страница 34: ...y to dismantle the system yourself dismantling the system MUST be done by an authorised installer and MUST comply with applicable legislation Units MUST be treated at a specialised treatment facility for reuse recycling and recovery By ensuring this product is disposed of correctly you will help to prevent potential negative consequences for the environment and human health For more information co...

Страница 35: ...2 3 4 X5A 1 2 3 4 5 6 7 8 X2M 1 DA 2 DB 3 GND SS2 SS3 SS1 DS1 5 2 P2 2 0V P2 P1 1 2 3 4 5 6 7 8 910 ON OFF Field supply X11A X18A or X35A OFF ON INDOOR Earth wiring 1 Several wiring possibilities Option Not mounted in switch box Wiring depending on model PCB INDOOR Indoor unit HAP LED Light emitting diode service monitor is green SS Slide switch X A X M CN TN Connector X2A Connector for SW Updater...

Страница 36: ... 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 ...

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