Schlegel S_789-602 4-channel Radio Receiver With 4 Changeover Contacts 4-channel-radio receiver S_789-602 Manuel D’Utilisation

Mounting - and Installation Instructions 789-601 / 789-602 incl. Versions /xxx- xxx

WAGO Kontakttechnik GmbH & Co. KG, D-32423 Minden, Hansastraße 27  •www.wago.com

The following topics should be observed:

- the valid laws, norms and regulations
- the applicable local codes in respect to wiring practices
- the state of the technology at time of installation
- the operating manual from sensors and receiver
- the general rules of the technique
- the fact, that instructions manuals could only inform about 
general regulations and these have to correspond with plant or 
local regulations.

3.1 Restrictions for the Operation of Radio Transmitters or 
Receivers
The use of the devices does not need to be registered and is 
free in the European Union, Switzerland, Cyprus, the Czech 
Republic, Poland and in Slovenia.

The use in other countries requires explicit clarification! 

! Danger for Life existing in case of open 
unit by electrical power !
Electrical connection, mounting and dismounting is 
only allowed by qualified electrical personal.

Switch Off mains/power connectors before mounting or 
dismounting of the Radio Receiver.
Observe assignment of the connectors.
Wrong wiring may destroy the device or lead to short circuits.
Failure to observe these precautions could result in severe 
bodily injury or loss of life.

5. Commissioning
Before commissioning the receiver should be proofed for 
mechanical- or transport-damages. In case of probable 
damages the commissioning of the unit is not allowed.
Read the instruction manual carefully and observe the technical 
advices and applying legal regulations.

5.1 Handling Advices / ESD (Electrostatic Discharge)

The modules are equipped with electronic 
components that may be destroyed by electrostatic 
discharge. When handling the modules, ensure 

that the environment (persons, workplace and packing) is well 
grounded. Avoid touching of conductive components.

5.2. General Advices for Installation 
Avoid installing the module, the antenna and the antenna line 
close to sources of transient interferences, such as fluorescent
tubes with defective starter, frequency converters and power 
cables. As a result, communication failures may occur leading 
to faulty output behavior.

5.3 Advices for Antenna Installation
Use only appropriate antenna (WAGO 758-910 incl.  2.5 m 
RG174-cable and SMA-connector; see accessories).
Antenna must be mounted on metal footer with min. dimensions 
of 25 cm x 25 cm.
Antenna including cable must have min 30 cm distance to 
interference sources and antenna should have free space to 
walls of min. 35 cm.
The cable must not be bended because the cable may be 
damaged (RG174 bending radius > 15 mm).

5.4 Preconditions for Commissioning
Before commissioning the supply voltage must be applied and 
the external antenna must be connected.

Switches (Transmitters) should be „learned“before mounting, 
because of reduced transmission range (appr. 5 m) in Learn-
Mode.

SMA-Antenna-
jack

LED-indication
Supply voltage

Status indication of
outputs 1...4

Learn (LRN)-Button

Clear (CLR)-Button

Terminals for
int. voltage supply

Output Terminals
of relay contacts 789-601

LED-Indicator
Learn-Mode

Features
•Radio Receiver for Battery and Wireless Sensors
•Status indication via LED 
•868 MHz Frequency band
•Transmitter / Receiver assignment via Learn-Mode
•4 potentialfree contacts
•Invertable Outputs; Switch or Toggle beviour selectable
•Supply voltage 24V DC
•External Antenna for optimized Transmission Range (always 
required)
•CAGE-CLAMP

®

terminals

1. General Description
The Radio Receivers in the modular installation housing is 
designed for switching of 4 individual loads (e.g. lamps) via 
radio sensors and push-buttons which are based on Enocean
Radio Technology. Transmission is on a european-wide 
harmonized  transmission band of 868 MHz. The system is 
specially dedicated for flexible, pluggable building or industrial 
automation because the expenditure for new or reconfiguring of 
installations is minimized.

Compatibility: The Radio Receiver is compatible to wireless 
sensors of different manufacturers. The sensors must be based 
on EnOcean PTM or STM transmitters (see chapter 8.3).

Transmitter - Receiver - Assignment: One receiver could be 
operated from up to 40 transmitters, each channel from up to 10 
transmitters. The assignment between sensor and output has to 
be teached once during commissioning, the assignments are 
stored mains-failure protected in the NV-Ram of the Receiver. 
Mixed operation of PTM and STM Modules is possible. One 
sensor could be assigned to multiple outputs (1:n); multiple 
transmitters could be assigned to one output channel (n:1). 

Output Contacts: Loads are operated via 4 relays with 
normally-open or change over contacts. The max. permissible 
load per contact is either 8A (789-602) or 16A (789-601).