Wolf WRS-K Installation And Operating Instructions Manual
Modbus interface
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- Configuration manual (20 pages) ,
- Installation and operating instructions manual (16 pages) ,
- Installation and operating instructions manual (64 pages)
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Summary of Contents for Wolf WRS-K
- Page 1 Installation and operating instructions Modbus interface for WRS-K (Translation of the original) 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 modifications...
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Page 2: Table Of Contents
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 .................. -
Page 3: Documentation Information
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. 1.4 Applicability of These operating instructions are valid for the Modbus interface for WRS-K. these instructions 3062947_201707... -
Page 4: Standards And Directives
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... -
Page 5: Installation
3. Installation 3.1 View Connection block to the KLM-M or KLM-L control unit Terminal block for the Modbus network 3.2 Installation The Modbus interface is usually supplied fully assembled with the control unit. If it is retrofitted, 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. -
Page 6: Connection
(optional) 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. -
Page 7: Connection To A Modbus Network
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 With read access, actual and set values can be checked, subject to operating mode, via a Modbus network. - Page 8 Register Operating mode, heat pump Register Available WRS-K software version 3.0.000 or higher 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.
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Page 9: Special Operating Modes
4. Connection to a Modbus network 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. Description Type Index... -
Page 10: Alarms
4. Connection to a Modbus network 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. Description Type Index Fault, inverter, supply air fan... -
Page 11: Write Access
KVS control unit switched off (standby) Coil BMS outside temperature implausible Coil Available WRS-K software version 3.0.000 or higher Available up to WRS-K software version 2.1.031 Included in WRS-K software version 5.3.000 or higher Explanation Value Explanation Alarm disabled Alarm enabled Note: Several alarms can be enabled at the same time. -
Page 12: Operating Data Write Access
4. Connection to a Modbus network 4.2.1 Operating data write access The following data is available for write access: Description Unit Factor Type Index Set temperature from BMS °C Register Set speed, supply air fan from BMS Register Set speed, extract air fan from BMS Register Set value, fresh air proportion Register... -
Page 13: Operating Mode Selection
4. Connection to a Modbus network 4.2.2 Operating mode selection If a Modbus interface is installed, the system can be operated in 3 different operating modes: Manual mode 7-day program BMS mode Manual mode The system runs with the set values specified for manual mode via the BMK programming module. -
Page 14: Manual Mode / 7-Day Program
Adjustment of set speed / pressure / flow rate: The set values for speed or pressure can be adjusted via the remote control in 3 stages (see WRS-K installation and operating instructions). Here, the set value is altered according to the values specified in the standard settings for supply air and extract air. -
Page 15: Bms Mode
4. Connection to a Modbus network 4.2.4 BMS mode In BMS mode, all set values are specified via the Modbus interface. The system is also switched on and off via the Modbus interface. The following variables are effective: Set temperature from BMS Set speed, supply air fan from BMS Set speed, extract air fan from BMS Set value, fresh air proportion from BMS... -
Page 16: Specification
5. Specification 5. Specification Operating conditions -10-60 °C, 20-80 % r.H. not condensing Storage conditions -20-70 °C, 20-80 % r.H. not condensing Protocol Modbus Slave RTU, 8 databits, 2 stopbits, no parity Maximum baud rate 38400 Power supply Via KLM control unit Cable AWG 20/22 screened Maximum cable length 1000 m... -
Page 17: Notes
6. Notes 3062947_201707... - Page 18 6. Notes 3062947_201707...
- Page 19 6. Notes 3062947_201707...
- Page 20 WOLF GmbH Postfach 1380 · D-84048 Mainburg · Tel. +49-(0)8751/74-0 · Fax +49-(0)8751/741600 Internet: www.wolf.eu 3062947_201707 Subject to technical modifications...
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