Wolf WRS-K Manuel utilisateur

WOLF GMBH / POSTFACH 1380 / D-84048 MAINBURG / TEL. +49(0) 87 51 74- 0 / FAX +49(0)87 51 74- 16 00 / www.WOLF.eu

Part no.:3062947_201707 Subject to technical modications

Installation and operating instructions

Modbus interface for WRS-K

(Translation of the original)

2 3062947_201707

Contents

1. Documentation information.................................................3

1.1 Other applicable documents .......................................................... 3

1.2 Safekeeping of these documents .................................................. 3

1.3 Symbols and warnings used.......................................................... 3

1.4 Applicability of these instructions................................................. 3

2. Standards and directives.....................................................4

2.1 Installation / commissioning .......................................................... 4

2.2 Warnings ..........................................................................................4

2.3 Service / repair................................................................................. 4

2.4 Disposal ...........................................................................................4

3. Installation.............................................................................5

3.1 View ..................................................................................................5

3.2 Installation .......................................................................................5

3.3 Connection....................................................................................... 6

3.4 Interface conguration ...................................................................6

3.5 Portal connection (optional)........................................................... 6

4. Connection to a Modbus network.......................................7

4.1 Read access..................................................................................... 7

4.1.1 Operating data read access ................................................... 7

4.1.2 Special operating modes........................................................ 9

4.1.3 Alarms ..................................................................................10

4.2 Write access .................................................................................. 11

4.2.1 Operating data write access................................................. 12

4.2.2 Operating mode selection .................................................... 13

4.2.3 Manual mode / 7-day program ............................................. 14

4.2.4 BMS mode ...........................................................................15

5. Specication .......................................................................16

6. Notes....................................................................................17

3062947_201707 3

Danger through 'live' electrical components!

Please note: Switch OFF the ON/OFF switch before removing the casing.

Never touch electrical components or contacts when the ON/OFF switch is in

the ON position! This results in a risk of electrocution that may lead to injury

or death.

"Safety instructions" are instructions with which you must comply exactly, to

prevent risks and injuries to individuals and material losses.

The following symbols are used in conjunction with these important

instructions concerning personal safety, as well as operational reliability.

1.3 Symbols and

warnings used

"Please note" indicates technical instructions that you must observe to

prevent material losses and equipment malfunctions.

Please note

1. Documentation information

1.1 Other applicable

documents

WRS-K installation and operating instructions.

The instructions for all accessory modules and further accessories may also

apply.

1.2 Safekeeping of these

documents

The system operator or user should ensure the safekeeping of all instruction

manuals.

→ Pass on these operating instructions as well as all other applicable

manuals.

Warning structure You will recognise warnings in this manual by a pictogram with a line above

and below respectively. These warnings are structured according to the

following principle:

Signal word

Type and source of the risk.

Explanation of the risk.

→ Action to prevent the risk.

These operating instructions are valid for the Modbus interface for WRS-K.

1.4 Applicability of

these instructions

4 3062947_201707

2. Standards and directives

The components of the Wolf WRS-K control system comply with the

following regulations:

EC Directives

- 2006/95/EC Low Voltage Directive

- 2004/108/EC EMC Directive

EN Standards

- EN 55014-1 Emission

- EN 55014-2 Immunity

- EN 55022 Radio disturbance characteristics

- EN 55024 Immunity characteristics

- EN 60730-1 Automatic electrical controls for household and similar use

- EN 60730-2-9 Particular requirements for temperature sensing controls

- EN 61000-6-1 Immunity for residential, commercial and light-industrial

environments

- EN 61000-6-2 EMC Immunity for industrial environments

- EN 61000-6-3 EMC Emission standard for residential, commercial and

light-industrial environments

- EN 61000-6-4 Emission standard for industrial environments

- EN 61010-1 Safety requirements for electrical equipment for

measurement, control and laboratory use

Only operate the system in perfect technical condition. Immediately remove /

remedy any faults and damage that may impact on safety.

2.2 Warnings

2.1 Installation /

commissioning

- In accordance with EN 50110-1, installation and commissioning may only

be performed by qualied electricians

- Observe all regulations stipulated by your local power supply utility and all

VDE or local regulations

- DIN VDE 0100 Regulations regarding the installation of high voltage

systems up to 1000 V

- DIN VDE 0105-100 Operation of electrical installations.

2.3 Service / repair - Regularly check the perfect function of all electrical equipment.

- Only qualied personnel may remove faults or repair damage.

- Only replace faulty components or equipment with original Wolf spare

parts.

We accept no liability for any damage or loss resulting from technical

modications to Wolf control units.

Please note

2.4 Disposal Observe the following information regarding the disposal of faulty system

components or the system at the end of its service life: Dispose of all

components in accordance with applicable regulations, i.e. separate material

groups correctly. The aim should be the maximum possible recycling of

basic materials with the least environmental impact. Never throw electrical or

electronic scrap into the household waste, but recycle it appropriately.

Generally, dispose of materials in the most environmentally responsible

manner according to environmental, recycling and disposal standards.

3062947_201707 5

The Modbus interface is usually supplied fully assembled with the control

unit. If it is retrotted, please observe the following points:

The Modbus interface is inserted into the (serial card / BMS card) slot

on the KLM-M control unit (part no. 2744747) or KLM-L control unit

(part no. 2744746). To do this, proceed as follows:

1. Isolate the KLM-M or KLM-L air handling and ventilation module from the

power supply.

2. Remove the cover of the (serial card / BMS card) slot using a screwdriver.

3.2 Installation

3. Installation

3.1 View

Connection block to the KLM-M or KLM-L control unit

Terminal block for the Modbus network

3. Remove the inner part of the cover with wire cutters.

4. Insert the Modbus interface into the free slot such that a plug-in

connection is made between the connection block of the Modbus

interface and the pins of the air handling and ventilation module

(connection block clicks into place).

5. Ret the slot cover.

6. Reconnect the power supply.

6 3062947_201707

3. Installation

3.4 Interface

conguration

S-04

Other...

BMS-Protocol

>MODBUS Slave Standard

Transfer rate

>19200 (SOLO RS485)

BMS-Address: 001

VALUE SAVE Esc CANCEL

If the Modbus interface was supplied fully assembled with the

control unit, it is also already congured. No further settings are

required.

If the interface is retrotted, it can be congured as follows:

1. Navigate to the main menu with the Esc key on the BMK programming

module.

2. Select menu item Heating contractor with Enter.

3. Enter password "1234" and conrm with Enter.

4. Select menu item Other...

with Enter.

5. Navigate to menu item BMS-Protocol with the up/down arrows.

6. Use Enter to highlight the BMS-Protocol and the up/down arrows to select

protocol type Modbus Slave Standard.

The transfer rate is then automatically set to 19200 and the BMS address

to 001.

7. Conrm these entries with Enter.

8. Use Esc to complete the entry and exit the menu item.

The precise procedure for operating the BMK programming

module can be found in the WRS-K installation and operating

instructions.

Note

Connection to the Modbus network is made via the pluggable terminal block:

1: GND

2: RX+/TX+

3: RX-/TX-

3.3 Connection

1 2 3

3.5 Portal connection

(optional)

A transfer rate of 9600 and 8N1 (no parity, 1 stopbit) is required for

communication with "Wolf Link pro".

The data described under "Data point list, BMS connection" are of no further

relevance in this case. The "Wolf Link pro" recognises the control unit and

automatically connects all available data points which can be viewed and/or

adjusted via the Wolf portal http://www.wolf-smartset.de.

Note

3062947_201707 7

4. Connection to a Modbus network

Via the Modbus interface, it is possible to gain read and write access to the

air handling control unit.

4.1 Read access

The following data is available for read access:4.1.1 Operating data read access

Description Unit Factor Type Index

Central fault - - Coil 1

External system enable - - Coil 2

Hygrostat humidity - - Coil 3

Humidier enable - - Coil 4

System status - - Coil 5

Operating status 1) - - Coil 117

Pump, hot water - - Coil 60

Pump, cold water - - Coil 18

Heat source demand - - Coil 61

Enable or pump HR - - Coil 62

Outside/supply air damper - - Coil 63

Exhaust/extract air damper - - Coil 64

Enable gas valve - - Coil 65

Enable or pump, adiabatic cooling - - Coil 87

Enable convector heater (WO) - - Coil 89

Thermostat, convector heater (WO) - - Coil 90

Water supply line drain valve,

adiabatic cooling, open

- - Coil 91

Pan drain valve,

adiabatic cooling, open

- - Coil 92

Inlet valve,

adiabatic cooling, open

- - Coil 94

Supply air temperature °C 0.1 Register 1

Outside temperature °C 0.1 Register 2

Room temperature °C 0.1 Register 3

Extract air temperature °C 0.1 Register 4

Air quality (mixed gas) V 0.1 Register 5

Set room transducer °C 0.1 Register 6

Indoor air humidity %r.h. 0.1 Register 7

Relative humidity, extract air %r.h. 0.1 Register 8

Relative humidity, supply air %r.h. 0.1 Register 9

Current set value, supply air

temperature

°C 0.1 Register 10

Current set temperature °C 0.1 Register 11

Current set value, fresh air proportion % 1 Register 12

Current set speed, supply air fan % 0.1 Register 13

Current set speed, extract air fan % 0.1 Register 14

Current set value, relative humidity %r.h. 0.1 Register 23

Current set value, absolute humidity g/kg 0.1 Register 24

Icing-up sensor °C 0.1 Register 27

Actuating signal, heating % 0.1 Register 28

Actuating signal, cooling % 0.1 Register 29

Actuating signal, HR % 0.1 Register 30

Actuating signal, humidier % 0.1 Register 31

Extract air temperature after

humidier for adiabatic cooling

°C 0.1 Register 32

Actuation signal reheating 1) % 0.1 Register 33

With read access, actual and set values can be checked, subject to

operating mode, via a Modbus network.

The values can be selected with function code 1 (read coils) or function code

3 (read holding register).

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Values with a factor = 0.1 have a decimal place. Multiply the transferred

value by the factor 0.1.

Example: Transferred value for supply air temperature = 243 -> actual value

= 24.3 °C.

For values with a factor = 1, the transferred value equals the actual value

(no decimal place).

Example: Transferred value for fresh air proportion = 45 -> actual value =

45 %.

For values with a factor = 10, the transferred value needs to be multiplied by

10.

Example: Transferred value for supply air ow rate = 125 -> actual value =

1250 m³/h

Description Unit Factor Type Index

Air quality (CO2) ppm 0.1 Register 209

Supply air pressure Pa 1 Register 210

Extract air pressure Pa 1 Register 211

Flow rate, supply air m³/h 10 Register 212

Flow rate, extract air m³/h 10 Register 213

Operating mode - - Register 214

Current set value, fan stage - - Register 215

Current set pressure, supply air Pa 1 Register 216

Current set pressure, extract air Pa 1 Register 217

Current set ow rate, supply air m³/h 10 Register 218

Current set ow rate, extract air m³/h 10 Register 219

Cooling source demand, stage 1/2 - - Register 220

Electric heater bank stage - - Register 232

Direct evaporator stage - - Register 233

Operating mode, heat pump 1) - - Register 255

1) Available WRS-K software version 3.0.000 or higher

Description Value Explanation

Current set value, fan stage 0 Fans OFF

Fans ON (single stage and variable fans)

Fans stage 1 on (multi stage fans)

2 Fans stage 2 ON

3 Fans stage 3 ON

Operating mode 0 Manual mode

1 7-day program

2 BMS mode

System status 0 Standby

1 Ready for operation

Operating status 0 System not in use

1 System in use

Operating mode, heat pump 0 Not enabled

1 Enable heating

2 Enable cooling

Codes

4. Connection to a Modbus network

3062947_201707 9

Description Type Index

Holiday program Coil 6

Filter check Coil 7

Preheat program Coil 8

Night ventilation Coil 9

Backup mode Coil 10

Extension of utilisation time Coil 11

Peak ventilation Coil 12

Natural cooling Coil 13

Hygrostat function Coil 14

Air quality control Coil 15

External demand Coil 16

Run-on Coil 17

HR Ice guard Coil 92

HR Ice guard Coil 101

Speed reduction Coil 102

Setback mode 1) Coil 112

Winter start HR 1) Coil 113

Quick heating 2) Coil 129

1) Available WRS-K software version 3.0.000 or higher

2) Included in WRS-K software version 5.3.000 or higher

4.1.2 Special operating modes Any special operating modes which are enabled will be transferred as

described below. Function descriptions of the special operating modes can

be found in the WRS-K installation and operating instructions.

Explanation Value Explanation

0 Special operating mode not enabled

1 Special operating mode enabled

Several special operating modes can be enabled at the same time.Note:

4. Connection to a Modbus network

10 3062947_201707

Description Type Index

Fault, inverter, supply air fan Coil 19

Motor temperature too high, supply air fan Coil 20

Isolator switch, supply air fan Coil 21

Air ow monitor, supply air Coil 22

Fault, inverter, extract air fan Coil 23

Motor temperature too high, extract air fan Coil 24

Isolator switch, extract air fan Coil 25

Air ow monitor, extract air Coil 26

Outdoor air lter contaminated Coil 27

Supply air lter contaminated Coil 28

Extract air lter contaminated Coil 29

Pump fault, DHW bank Coil 30

Frost stat has responded Coil 31

Frost protection temperature, supply air not reached Coil 32

Temperature limiter, electric heater bank Coil 33

High limit safety cut-out, electric heater bank Coil 34

Fault, pump, cold water bank Coil 35

Central fault, external refrigeration unit Coil 36

Alarm, re alarm system Coil 37

Supply air temperature sensor faulty or not connected Coil 38

Supply air humidity sensor faulty or not connected Coil 39

Room temperature sensor faulty or not connected Coil 40

Indoor air humidity sensor faulty or not connected Coil 41

Extract air temperature sensor faulty or not connected Coil 42

Extract air humidity sensor faulty or not connected Coil 43

Outside temperature sensor faulty or not connected Coil 44

Outside humidity sensor faulty or not connected Coil 45

Icing-up sensor HR faulty or not connected Coil 46

Fire damper responded Coil 47

Fault, EC motor, supply air fan Coil 48

Fault, EC motor, extract air fan Coil 49

Databus fault, extension modules Coil 50

Remote control not connected or databus fault Coil 51

Service required Coil 52

Icing-up temperature HR below set value 2) Coil 53

Fault, heat recovery Coil 54

Service message, humidier Coil 55

Fault, humidier Coil 56

External fault Coil 57

Smoke detector responded Coil 58

Set value transducer not or incorrectly connected Coil 59

Fire damper 1 responded Coil 66

Fire damper 2 responded Coil 67

Fire damper 3 responded Coil 68

Fire damper 4 responded Coil 69

Fire damper 5 responded Coil 70

Fire damper 6 responded Coil 71

Fire damper 7 responded Coil 72

Fire damper 8 responded Coil 73

Fire damper 9 responded Coil 74

Fire damper 10 responded Coil 75

Fire damper 11 responded Coil 76

4.1.3 Alarms Any enabled alarms will be transferred as described below. Descriptions of

the causes and possible solutions can be found in the WRS-K installation

and operating instructions.

4. Connection to a Modbus network

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