Meltem M-WRG-KNX-GW Installation Instructions And User Manual

V E N T I L A T I O N & H E A T R E C O V E R Y
INSTALLATION INSTRUCTIONS AND
USER GUIDE
Part no. 744018EN, Week 51/2022 EN
Modbus-KNX gateway
M-WRG-KNX-GW
Fig. 1: Modbus-KNX gateway
1

Introduction

1.1 Notes on these instructions
These instructions contain important information that
should be followed when installing and using the
Modbus-KNX gateway.
► Read all the instructions carefully to avoid possible risks and
mistakes.
► These instructions are part of the product. Keep the instructions
in a safe place for future reference.
NOTICE
► When operating the ventilation unit, also follow the operating
instructions that were supplied with your unit.
1.2 Description
The Modbus-KNX gateway is used to control a ventilation unit of
the operation via Modbus type via KNX bus. It can only be used
in conjunction with an M-WRG-II P/E-M (-F, -FC) or M-WRG-S M
(-F, -FC) unit. The gateway is fitted inside the ventilation unit.
The gateway is commissioned using the Engineering Tool Soft-
ware (ETS) in combination with the associated application program.
All functions are parameterised and programmed via the ETS.
NOTICE
— One gateway is needed for each ventilation unit.
— A 24 V auxiliary voltage and a KNX connection are to be
provided by the customer.
1.3 Target group
These installation and operating instructions are aimed at two target
groups:
The activities described in chapter „4 Installation in the M-WRG-II
ventilation unit", chapter „5 Installation in the M-WRG ventilation
unit" and chapter „6 Wiring" must only be carried out by specialised
personnel with the following qualifications:
— Training in the installation and commissioning of electrical
devices
— Training in electrical hazards and the local safety requirements
— Knowledge of the relevant standards and directives
— Knowledge and observance of this document and all the safety
instructions
The other chapters of this document are intended for users of the
Modbus-KNX gateway. It assumes prior knowledge of the KNX bus
and the Modbus protocol.
1.4 EU declaration of conformity
The Modbus-KNX gateway described below
Type: M-WRG-KNX-GW
Part number: 5048
manufactured by
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4
82239 Alling
conforms to the regulations and standards listed in the EU Declara-
tion of Conformity.
1.5 Technical data
Product characteristics
Dimensions (W x H x D)
Weight
Housing material
Product database
Ambient conditions
Ambient temperature during operation
Ambient temperature for storage and
shipping
IP code
Electrical connection
Bus coupler
Auxiliary voltage for Modbus units
Auxiliary voltage current consumption
KNX operating voltage (bus voltage)
KNX power consumption
1.6 Environmentally-friendly disposal
The components of the Modbus-KNX gateway must not be
disposed of in the non-recyclable waste bin.
► In Germany, metal and plastic components should be disposed
of at the local recycling centre. The national regulations in other
EU states should also be followed.
► In Germany, electrical components should be disposed of in
accordance with the Electrical and Electronic Equipment Act
(ElektroG). In other EU states, the national implementation of the
Waste Electrical and Electronic Equipment Directive 2012/19/EU
(WEEE) should be followed.
► The regulations and statutory requirements in your own country
concerning disposal should also be followed.
1.7 Explanation of the symbols used
► This symbol indicates an action to be taken.
— This symbol indicates a list.
2

Safety

The Modbus-KNX gateway is approved only for use in dry interior
areas and must be protected against humidity and moisture to
prevent short-circuits.
2.1 Hazard classification
DANGER
The signal word designates a hazard with a high degree of risk
which, if it is not avoided, will result in death or severe injury.
WARNING
The signal word designates a hazard with a medium degree of
risk which, if it is not avoided, will result in death or severe injury.
CAUTION
The signal word designates a hazard with a low degree of risk
which, if it is not avoided, could result in minor or moderate injury.
50 mm x 50 mm x 20 mm
approx. 310 g
Makrolon 6265X V-0 (PC)
contained in the ETS
-20 °C to 55 °C
-20 °C to 85 °C
IP20
integrated
12 V DC
max. 100 mA
21 V DC to 32 V DC
approx. 240 mW at
24 V DC