Elsner KNX R Guida

KNX R

Rain Sensor

Installation and Adjustment

Product description...........................................................................................2

Technical specifications................................................................................................2

PCB layout ....................................................................................................................3

230 V AC version.................................................................................................................................. 3

24 V DC version.................................................................................................................................... 4

Installation and commissioning ........................................................................4

Location ........................................................................................................................5

Attaching the mount............................................................................................................................ 5

View of rear side and drill hole plan .................................................................................................. 7

Preparing the sensor ........................................................................................................................... 8

Mounting the sensor ........................................................................................................................... 8

Notes on installation............................................................................................................................ 9

Maintenance..................................................................................................................9

Transmission protocol..................................................................................... 10

Abbreviations..................................................................................................................................... 10

Listing of all communication objects..........................................................................10

Setting of parameters .....................................................................................12

General settings ..........................................................................................................12

Logic ...........................................................................................................................13

AND Logic 1 / 2 / 3 / 4 ........................................................................................................................ 14

Linkage inputs of AND logic ............................................................................................................. 17

OR Logic 1 / 2 / 3 / 4 ........................................................................................................................... 17

Linkage inputs of OR logic ................................................................................................................ 19

KNX R Rain Sensor • from software version 1.00, ETS programme version 1.1 • Status:

01.07.2009. Errors excepted. Subject to technical changes

Elsner Elektronik GmbH Steuerungs- und Automatisierungstechnik

Herdweg 7 • D-75391 Gechingen • Germany

Phone: +49 (0) 70 56/93 97-0 • Fax: +49 (0) 70 56/93 97-20

[email protected] • www.elsner-elektronik.de

Product description

The rain sensor registers precipitation and transfers the status to the KNX system. One

switching output as well as AND and OR logic gates are available.

The sensor system, the evaluation electronics and the electronics of the bus connection

are mounted in a compact housing.

Functions:

•Precipitation perception: The surface of the sensor is heated so that only drops

and flakes are recognised as precipitation but not fog or dew. If it stops raining or

snowing, the sensor dries quickly and the precipitation message ends

•1 switching output

•4 AND and 4 OR logic gates with each 4 inputs. Every switching incident as well

as 8 logic inputs (in the form of communication objects) may be used as inputs for

the logic gates. The output of each gate may optionally be configured as 1 bit or 2 x

8 bits

Configuration is made using the KNX software ETS. The programme file (format VD2)

can be downloaded from the Elsner Elektronik homepage on www.elsner-

elektronik.de in the “Service” menu.

Technical specifications

Housing: Plastic material

Colour: White / translucent

Mounting: On-wall

Protection category: IP 44

Dimensions: approx. 96 × 77 × 118 (W × H × D, mm)

Weight: 230 V AC version: approx. 240 g

24 V DC version: approx. 170 g

Ambient temperature: Operation -30…+50°C, Storage -30…+70°C

Operating voltage: Available for 230 V AC or for 24 V DC (20 V AC)

Current: 230 V AC version: max. 20 mA

24 V DC version: max. 100 mA

Residual ripple 10%

Data output: KNX +/- bus terminal plug

BCU type: Own micro controller

PEI type: 0

Group addresses: max. 254

Allocations: max. 255

Communication objects: 34

Heating rain sensor: approx. 1.2 W (230 V and 24 V)

The following standards have been considered for the evaluation of the product in

terms of electro magnetic compatibility:

Transient emissions:

•EN 60730-1:2000 Section EMV (23, 26, H23, H26) (threshold category: B)

•EN 50090-2-2:1996-11 + A1:2002-01 (threshold category: B)

•EN 61000-6-3:2001 (threshold category: B)

Interference resistance:

•EN 60730-1:2000 Section EMV (23, 26, H23, H26)

•EN 50090-2-2:1996-11 + A1:2002-01

•EN 61000-6-1:2004

The product has been tested for the above mentioned standards by an accredited EMV

laboratory.

PCB layout

230 V AC version

Fig. 1

1 Cable connection to the rain

sensor in the housing cover

2 Opening for the cable for the

voltage supply

3 Tension clamp for voltage

supply (230 V AC), suitable for

massive conductors of up to

1.5 mm² or conductors with

fine wires

4 Opening for bus cable

5 KNX clamp +/-

6 Programming pushbutton for

the teach-in of the device

7 Programming LED

24 V DC version

Fig. 2

1 Slot for cable connection to the

rain sensor in the housing cover

2 Tension clamp for voltage

supply (24 V DC/20 V AC), suitable

for massive conductors of up to

1.5 mm² or conductors with fine

wires

3 Opening for the cable for the

voltage supply

4 Opening for bus cable

5 KNX clamp +/-

6 Programming pushbutton for

the teach-in of the device

7 Programming LED

Installation and commissioning

Attention! Mains voltage!

The legal national regulations must be complied with.

Installation, inspection, commissioning and troubleshooting of the rain sensor must

only be carried out by a competent electrician. Disconnect all lines to be assembled, and

take safety precautions against accidental switch-on.

The rain sensor is exclusively intended for appropriate use. With each inappropriate

change or non-observance of the instructions for use, any warranty or guarantee claim

will be void.

After unpacking the device, check immediately for any mechanical damages. In case of

transport damage, this must immediately notified to the supplier.

If damaged, the rain sensor must not

be put into operation.

If an operation without risk may supposedly not be guaranteed, the device must be put

out of operation and be secured against accidental operation.

The rain sensor must only be operated as stationary system, i.e. only in a fitted state

and after completion of all installation and start-up works, and only in the environment

intended for this purpose.

Elsner Elektronik does not assume any liability for changes in standards after

publication of this instruction manual.

Location

Select an assembly location at the building where precipitation may be collected by the

sensor unobstructedly. Do not assemble any construction components above the

sensor from where water may drop on to the rain sensor after it has stopped raining or

snowing.

Fig. 3: The rain sensor must be mounted onto a

vertical wall (or pole).

Fig.4: The rain sensor must be mounted

horizontally in the lateral direction.

Attaching the mount

The rain sensor comes with a combination wall/pole mount. The mount comes adhered

by adhesive strips to the rear side of the housing.

Fasten the mount vertically onto the wall or pole.

Fig. 5: When wall mounting: flat side on wall,

crescent-shaped collar upward.

Fig. 6: When pole mounting: curved side on pole,

collar downward.

Fig. 7: An additional, optional accessory

available from Elsner Elektronik is an articulated

arm for flexible wall, pole or beam mounting of

the sensor.

Examples for the application of the hinge arm mounting:

Ex.1 (Fig. 8): With the hinge arm mounting, the

sensor projects from beneath the roof. Sun, wind

and precipitation can be measured unhindered by

the sensors.

Ex. 2 (Fig. 9a+b): Pole-mounting with mounting

brackets.

View of rear side and drill hole plan

Fig.10a: Dimensions of rear side of housing with bracket. Subject to change for technical

enhancement

Fig. 10b: Drill hole plan

Preparing the sensor

Fig. 11

The rain sensor cover snaps in on the left and right along the bottom edge (see Fig.).

Remove the cover. Proceed carefully, so as not to pull off the wire connecting the PCB in

the bottom part with the rain sensor in the cover (soldered cable connection in case of

230 V AC version, cable with plug in case of 24 V DC version).

Push the power supply and bus connection cable through the rubber seal on the bottom

of the sensor and connect voltage LN and bus +/- to the provided clamps.

Mounting the sensor

Close the housing by putting the cover back over the bottom part. The cover must snap

in on the left and right with a definite “click”.

Fig. 12: Make sure the cover and bottom part are

properly snapped together! This picture is

looking at the closed sensor from underneath.

Fig. 13: Push the housing from above into the

fastened mount. The bumps on the mount must

snap into the rails in the housing.

To remove it, the sensor can be simply pulled upwards out of the mount, against the

resistance of the fastening.

Notes on installation

Do not open the device if water (rain) might ingress: even some drops might damage

the electronic system.

Observe the correct connections. Incorrect connections may destroy the sensor or

connected electronic devices.

Maintenance

The sensor must regularly be checked for dirt twice a year and cleaned if necessary. In

case of severe dirt, the rain sensor may not work properly anymore.

As a precaution, the device should always be separated

from power supply for maintenance works (e.g. deactivate

or remove fuse).

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