HMW-IO-4-FM - Uncategorized Homematic IP - Free user manual and instructions

Product Type	RS485 4-Channel I/O Module (Flush-Mount)
Brand	Homematic IP
Model	HMW-IO-4-FM
Dimensions (H x W x D)	24 x 27 x 20 mm
Weight	30 g
Power Supply	24 V DC
Current Consumption	25 mA
Max Output Current per Channel	15 mA
Communication	RS485 Bus
Number of Channels	4
Configurable as Inputs/Outputs	Yes (via HomeMatic Center)
Input Type	Potential-free button inputs (multiple per channel)
Non-Volatile Memory	Yes (for configuration data)
Installation	Indoor, flush-mount in sub-distribution
Load Side Wiring	230 V, 1.5 mm² NYM cable (VDE conform)
Control Side Wiring	Safety extra-low voltage, 8 mm spacing from mains
Bus Termination	Required when using multiple modules
Maintenance	Maintenance-free; repairs only by trained professionals
Cleaning	Do not clean with liquids; wipe with dry cloth
Safety	Indoor use only; avoid humidity, dust, direct sunlight
Disposal	Electronic waste; do not dispose with household garbage
CE Marking	Yes

Frequently Asked Questions - HMW-IO-4-FM Homematic IP

What is the HMW-IO-4-FM and what can it be used for?

The HMW-IO-4-FM is a 4-channel I/O module for the HomeMatic RS485 bus system. It can be configured as either 4 inputs (for potential-free buttons) or as outputs via the HomeMatic Center. It is used to connect switches, buttons, or actuators in a home automation system.

How do I install the HMW-IO-4-FM?

Install the module in a sub-distribution box indoors. Connect the RS485 bus (A, B), 24 V power supply (+24V, GND), and the load/control wires according to VDE regulations. Ensure a minimum spacing of 8 mm between load and control wiring. Use a bus termination resistor if multiple modules are connected.

Can the channels be used as both inputs and outputs?

By default, all channels are configured as button inputs. They can be reconfigured as outputs using the HomeMatic Center software. Each channel can be assigned to an actuator channel on the bus.

How do I teach a button input to an actuator channel?

Press the programming button on the actuator module until the channel LED flashes slowly (approx. 3 seconds). Then press the button on the input module you want to assign. The LED turns off, confirming the assignment. Test by pressing the button.

How do I clear a button-to-actuator assignment?

Press the programming button on the actuator channel until the LED switches from slow to fast flashing (approx. 6 seconds). Release and then press the button on the input module you want to unassign. The LED turns off, and the assignment is deleted.

What is the maximum number of modules on a bus segment?

A single bus segment can support up to 127 modules. A bus termination is required at the end of the bus line.

What are the power requirements?

The module requires a 24 V DC power supply. It consumes 25 mA typically. The maximum output current per channel is 15 mA.

Is the module maintenance-free?

Yes, the HMW-IO-4-FM is maintenance-free. Do not attempt repairs yourself; contact a trained professional. Clean only with a dry cloth and avoid liquids.

Can I use this module outdoors?

No, the module is designed for indoor use only. It must be kept away from humidity, dust, direct sunlight, and other heat sources. Install in a dry location.

How do I dispose of the HMW-IO-4-FM?

Do not dispose of it with household waste. Follow local regulations for electronic waste (WEEE). Take it to a designated collection point for recycling.

USER MANUAL HMW-IO-4-FM Homematic IP

HomeMatic

Installation and Operating Manual

RS485 4 channel I/O module flush-mount HMW-IO-4-FM

Seite 18 - 30

Printed in Hong Kong

Documentation © 2007 eQ-3 Ltd., Hong Kong

All rights reserved. No parts of this manual may be reproduced or processed in any form using electronic, mechanical or chemical processes in part or in full without the prior explicit written permission of the publisher.

It is quite possible that this manual has printing errors or defects. The details provided in this manual are checked regularly and corrections are done in the next edition. We do not assume any liability for technical or printing errors.

All registered trade marks and copyrights are acknowledged.

Printed in Hong Kong

We reserve the right to make changes due to technical advancements without prior notice.

75243 / V 1.01

Inhaltsverzeichnis

1 Information concerning these instructions. 19
2 Hazard information 19
3 Function....20
4 General system information on HomeMatic. 22
5 General information on the bus system .... 23
5.1 General information on the installation .... 23
5.2 Topology of the bus system ..... 2 4
6 Installation 26
7 Assignment of button inputs and actuator channels 27
7.1 Teaching button inputs to actuator channels 27
7.2 Clearing the assignment of button inputs to actuator channels ..... 2 9
8 Maintenance and cleaning 30
9 Technical specifications .... 3 0

1 Information concerning these instructions

Read these instructions carefully before beginning operation with your HomeMatic components.

Keep the instructions handy for later consultation!

Please hand-over the operating manual as well when you hand-over the device to other persons for use.

Symbols used:

Attention! This indicates a hazard.

Note. This section contains additional important information!

2 Hazard information

This device is to be operated indoors only and keep away from the influences of

humidity, dust and sunshine or other radiating heat sources.

3 Function

• 4 connections, optionally as inputs or outputs (via the HomeMatic Center)
• Channels configured as inputs can be configured as desired and optional actuator channels can be assigned (from other modules as well).
• As many potential-free buttons as are necessary can be connected to one input.
  • Non-volatile memory for configuration data.

A B + - 1 2 3 4

Wires used:

A Bus A
B Bus B
+ Bus power supply +
- Bus power supply -
1 Channel	1
2 Channel	2
3 Channel	3
4 Channel	4

4 General system information on HomeMatic

This device is a component of the HomeMatic Home Control System.

All devices are delivered in a standard configuration. The functionality of the device can also be configured with a programming device and software.

Further resulting functionality and the additional functions provided in the HomeMatic system combined with other components are described in the separate Configuration Instructions and in the HomeMatic System Manual.

All current technical documents and updates are provided under www.HomeMatic.com.

5 General information on Bus system

5.1 General information on the installation

Basically, the connections of the HMW components can be divided into two groups. In the load side and in the control side (24 V power supply, button inputs, RS485 Bus).

Load side

Since normally a 230 V consumer is on the load side, using VDE-conforming installation wires, such as e.g. NYM wiring, etc. is required. The wire cross-section conform with the standard VDE regulations and is 1.5 mm2 for installations in the nominal load range of actuators.

Control side

On the control side however, only non-hazardous safety extra-low voltages are used. Since there is electrical isolation between the load and control sides in the module, no mains power capable wires have to be used. Using interior telecommunications wiring or comparable control wiring is recommended. Make sure however, that the wires of the load

and the control side are separated conforming with VDE regulations within the sub-distribution. Keep a minimum spacing of 8 mm between the two types of wiring.

When connecting the RS485 bus, the A terminals, the B terminals, the 24 V power supply and the ground terminal of the modules of a sub-distribution (max. 127 segments) are to be connected with one another. A connection diagram with bus system is provided in the system manual. When using several modules, a bus termination is required.

Information on the connections is provided in the respective operating instructions.

5.2 Topology of the bus system

The HMW components should always be mounted in groups of sub-divisions to provide a better overview. The number of sub-divisions that is appropriate depends on the type and size of the project and is to be defined accordingly.

Installing at least one sub-division on each level is recommended. Larger buildings may require plan-

ning several sub-divisions per level (e.g. separate for every floor). All load and control wiring should also be run in a star format to the respective sub-divisions. The power supply is done through a DIN rail power supply HMW-Sys-PS7-DR or another 24 V power supply dimensioned according to the number and total current consumption of all existing modules in the respective sub-division. If central programming and control is to be done through the HomeMatic Centre, the HMW bus lines for the individual sub-divisions and the lines coming from the control PC or a Centre should be run together in a room according to available space in order to achieve a separation of the individual bus segments and to simplify troubleshooting if necessary. Normally, this is the room in which the HomeMatic system Centre is installed.

6 Installation

Installation with four input channels

1 2 3 4 A B +24V GND RS 485

The channels can be reconfigured as outputs when using the HomeMatic Center.

1 2 3 4 RS 485 A ○ B ○ +24V GND

7 Assignment of button inputs and actuator channels

All channels of the device are configured as button inputs in delivery status. You can teach the inputs for any actuator channels on the bus.

7.1 Teaching button inputs to actuator channels

Please read this section completely before starting with any configuring!

The button inputs are not assigned to any actuator channels in factory status (not the actuator channels of the device on which they are located either)

Assignment of button inputs to actuator channels

• Press the programming button of the actuator (channel) to be assigned on the module until the channel LED flashes slowly (after approx.
  3 seconds). The module is now in teach mode.
• Now, actuate a button on the button input (on the same module or any other module on the

bus) that you want to assign to the actuator (channel).

• The actuator (channel) is now assigned with this switch input and the channel LED goes dark on the actuator.
• Test the assignment by pressing the respective button. The actuator (channel) should react according to the configuration of the button input.
• If you want to assign another button input to the actuator (channel), repeat this procedure.

Depending on the actuator, button inputs are taught differently:

Actuator Button behavior
Switch actuator, Dimming actuator	Taught buttons behave like toggle switches
Blind actuator	Depending on whether teach mode on the actuator was triggered with the ▲- or ▼- button, the button to be taught is taught as "Open" or "Close", not as a toggle button.

If a button that was taught for an actuator is taught for the same actuator again, the old

assignment is overwritten.

7.2 Clearing the assignment of button inputs to actuator channels

Clearing the assignment of a button input and actuator (channel)

- Press the programming button of the actuator (channel) that you want to clear the assignment for until the respective channel LED switches from slow flashing to quickly flashing (after approx. 6 seconds).

- Release the button. The module is now in delete mode.

- Now, press a button on the button input of a module for which you want to clear the assignment. The channel LED on the actuator goes dark and the assignment is deleted, the actuator (channel) is no longer actuated on this switch input.

- Test the setting by actuating a button on the deleted button input, the actuator (channel) should not react.

All teach procedures can be aborted by briefly actuating the programming button.

8 Maintenance and cleaning

This product is maintenance-free. Repairs are only to be done by trained professionals.

9 Technical specifications

Communication: RS485-Bus

Voltage supply: 24 V / DC

Current consumption: 25 mA

Max. output current: 15 mA

Housing dimensions: 24 x 27 x 20 mm

(H x W x D) (with-out connecting lines)

Weight: 30 g

Length of the connecting lines: 125 mm

Instructions for disposal:

Do not dispose off the device as part of household garbage! Electronic devices are to be disposed of in accordance with the guidelines concerning electrical and electronic devices via the local collecting point for old electronic devices.

The CE sign is a free trade sign addressed exclusively to the authorities and does not use any warranty of any properties.

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