Daikin EKMBPP1 Bedienungsanleitung

Installation manual

Modbus adapter English

Installation manual

Modbus adapter

EKMBPP1

Table of contents

Installation manual

EKMBPP1

Modbus adapter

4P720139-1B – 2023.09

Table of contents

1 About this document 3

2 Specific installer safety instructions 4

3 About the kit 7

3.1 Components....................................................................................... 7

3.2 Basic parameters ............................................................................... 8

3.3 Compatibility ...................................................................................... 8

4 About the box 9

4.1 To unpack the adapter ....................................................................... 9

5 Installation 10

5.1 Precautions when installing the kit..................................................... 10

5.2 Preparing the installation site............................................................. 10

5.3 To install the Modbus adapter............................................................ 11

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 communication ......................................................................... 20

6.3 Modbus protocol ................................................................................ 20

6.3.1 Modbus address range ........................................................... 20

6.3.2 Modbus registers .................................................................... 21

6.3.3 Modbus master timeout .......................................................... 22

6.3.4 Terminating resistor settings................................................... 23

6.4 Control functions ................................................................................ 23

6.4.1 Unit control.............................................................................. 23

6.4.2 Control update mode .............................................................. 24

1 About this document

Installation manual

EKMBPP1

Modbus adapter

4P720139-1B – 2023.09

6.4.3 Control limiting ........................................................................ 26

6.4.4 VAM-specific control ............................................................... 27

6.4.5 Smart Grid control................................................................... 27

6.5 Readback data................................................................................... 28

6.5.1 Remote controller readback.................................................... 28

6.5.2 Group readback ...................................................................... 28

6.5.3 Unit readback.......................................................................... 29

6.5.4 Error codes ............................................................................. 30

6.6 Smart Grid.......................................................................................... 31

6.7 Software update................................................................................. 33

7 Hand-over to the user 33

8 Disposal 34

9 Technical data 35

9.1 Wiring diagram................................................................................... 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 it for future

reference. Also read the installation manual of the indoor unit before

installing the EKMBPP1 adapter.

Damage caused by non-observance of these instructions are not under

the responsibility of Daikin.

2 Specific installer safety instructions

Installation manual

EKMBPP1

Modbus adapter

4P720139-1B – 2023.09

Documentation set

This document is part of a documentation set. The complete set

consists of:

▪General safety precautions:

▪ Safety instructions that you must read before installing

▪ Format: paper (in the box of the indoor unit)

▪Installation manual:

▪ Installation instructions

▪ 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 MUST be performed by an authorised electrician and

MUST comply with the applicable national wiring regulation.

Possible consequence: property damage and electrocution.

2 Specific installer safety instructions

Installation manual

EKMBPP1

Modbus adapter

4P720139-1B – 2023.09

Installation (see "5 Installation" [4 10])

DANGER: RISK OF ELECTROCUTION

▪ Turn off the indoor unit power supply before mounting the

PCB.

▪ Do NOT handle the PCB with wet hands.

▪ Do NOT let the PCB get wet.

▪ Do NOT disassemble, modify or repair the PCB.

▪ Turn OFF the indoor unit power supply if the PCB is

damaged.

▪Possible consequence: electrocution.

DANGER: RISK OF ELECTROCUTION

Connect the earth wires correctly. Possible consequence:

electrocution.

DANGER: RISK OF ELECTROCUTION

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 not

possible, the EKMBPP1 MUST be powered by a SELV power

supply.

DANGER: RISK OF ELECTROCUTION

Do NOT turn on the indoor unit power supply before you have

mounted the PCB inside the unit (with or without installation

box or mounting plate), connected the electrical wiring and

closed the indoor unit or indoor unit switch box. Possible

consequence: electrocution.

2 Specific installer safety instructions

Installation manual

EKMBPP1

Modbus adapter

4P720139-1B – 2023.09

WARNING

When applying this Modbus adapter (EKMBPP1), the

installation requirements described in the indoor and outdoor

unit installation manuals of the system to which this Modbus

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.

Hand-over to the user (see "7 Hand-over to the user" [4 33])

DANGER

▪ Do NOT disassemble, modify, or repair the adapter. This

can cause 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 doors or fire alarm equipment. This can cause

accidents due to erroneous equipment behaviour.

▪ In case of abnormal odour or sound, overheating, or smoke

coming out of the adapter, immediately disconnect the

indoor unit from its power supply. Otherwise, this can lead

to fire or malfunction. If this happens, consult your dealer.

▪ In case you drop or damage the adapter, disconnect the

indoor unit from its power supply. Otherwise, this can lead

to fire or malfunction. If this happens, consult your dealer.

3 About the kit

Installation manual

EKMBPP1

Modbus adapter

4P720139-1B – 2023.09

3 About the kit

The EKMBPP1 kit is a Modbus interface to monitor and control the VRV

and Sky Air ranges of air conditioners, as well as the VAM and VKM

ventilation units. The interface is compatible with units that have a P1P2

remote controller connection, allowing control of up to 16 units in a

single group. Functionality includes:

▪ Group control of unit settings (setpoint, fan 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+

X2M

X7M

LED1~4

HAP

SS2 SS3

SS1

DS1

X1A

X1A Power supply connector

X2M RS485 connector (Modbus)

X7M P1P2 connector

LED*, HAP Status LEDs (see "6 Configuration" [4 18] for more information about LED

behaviour)

DS1 DIP switch

SS* Slide switches

3 About the kit

Installation manual

EKMBPP1

Modbus adapter

4P720139-1B – 2023.09

aMounting holes

3.2 Basic parameters

Parameter Value

Power supply Regulated voltage: 15~24VDC, 120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.

4 About the box

Installation manual

EKMBPP1

Modbus adapter

4P720139-1B – 2023.09

4 About the box

4.1 To unpack the adapter

aEKMBPP1 Modbus adapter PCB

bInstallation manual

cPCB clamp (4×)

dCable gland and locknut (M20×1.5)

eWire harness for power supply (2×)

5 Installation

Installation manual

EKMBPP1

Modbus adapter

4P720139-1B – 2023.09

5 Installation

5.1 Precautions when installing the kit

DANGER: RISK OF ELECTROCUTION

▪ Turn off the indoor unit's power supply before installing the

kit.

▪ Do NOT handle the kit with wet hands.

▪ Do NOT let the kit get wet.

▪ Do NOT disassemble, modify or repair the kit.

▪ Turn OFF the indoor unit's power supply if the kit is

damaged.

▪Possible consequence: electrocution.

WARNING

When applying this Modbus adapter (EKMBPP1), the

installation requirements described in the indoor and outdoor

unit installation manuals of the system to which this Modbus

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 of the PCB vary depending on the unit(s). See the

installer reference guide of the indoor unit for more information.

The KRP1BC101 installation box described in this manual has to be

installed onto the indoor unit. In case of a field supplied casing, see the

installation manual of that casing for more information on the installation

location. See "5.3 To install the Modbus adapter" [4 11] for installation

instructions.

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