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• Background "electrical noise" could be relatively high so that the signal-to-noise-ratio may decease and
therewith the operating range. Also other devices, with similar operating frequency, operated in the
neighbourhood of the receiver may reduce the sensitivity.
• Operating the receiver adjacent to badly shielded electronic components (eg PC's) that can produce
electromagnetic distortion, may severely reduce the range of operation and could result in intermittent operation.
Caution: To avoid influence of "electrical noise" from the load connected to the receiver (e.g. DC-Motor) install
the receiver within a distance of 1 m.
4 Description of Operation
Prior to powering on the receiver, configure first the function that the receiver should execute based on the sender
commands.
Delaytime for Key-function (Jumper 1)
If jumper 1 is set, the corresponding relay will stay closed with a delay time of 100ms as long as the transmitter key
remains active.
Installing the receiver in an RF-disturbed area could result in a chattering (relay contact bounce) during operation if
the operating button is pressed for a longer period. To minimize this effect, all instructions received from a
transmitter could be extended to 500ms by removing jumper 1. The receiver then will operate with delayed-action
correctly under RF disturbance.
Key- or Toggle-function (Jumper 2)
If jumper 2 is inserted, the relays will stay closed as long as the transmitter key remains active (Key-function).
Delay-time set by jumper 1.
If jumper 2 is removed, it is possible to switch on/off the relays. Each signal command puts the relay into the
opposite state. The delay-time set with jumper 1 is considered to be a „dead time" between the switching
processes. While the timer is running, no new command is executed.
5 Connection
All connections must comply with local regulations and standards, including VDE0100,
VDE0700, VDE0550/0551, VDE0711 and VDE0860. Only solid core cable is to be used for
connection, since stress relief is not provided on the product terminal connection block. As per
DIN 0700 / IEC 335 / EN 60335, no protective earth cable terminal is provided.
According to regulations, this product must only be installed by a qualified electrician. If in doubt seek professional
help before attempting to install. Incorrect Installation can damage the product and connected devices and increase
the risk of electric shock, damaged contacts or fire hazard.
Attention. Extreme danger !
When opening the product, live components may be touched. Isolate SHR-7 L3 from the mains
power supply before opening. Ensure that all connected devices and components are also
disconnected from the mains-power supply.
6 Installation
•
Using the external fixing lugs, the case of SHR-7 L3 can be wall mounted. Do not remove the electronic board.
•
Open the cable entries using a suitable piercing tool. To avoid damage to electronics, only entries on the screw-
terminal side should be used.
•
To open the enclosure cover, carefully insert a screwdriver into the slot on side frames.
•
Connect the power cables for 230V~/50Hz into the correct screw-terminals.
•
Max. cross-section of wires to be used is limited to 1.5 mm²
•
The connection wires are to be stripped to a maximum of 4 mm. (To avoid accidental contact)
•
Connect the wires to devices into screw-terminals for changeover contacts NO/CC/NC as per fig 1.
•
All wiring should be installed neatly and rectilinearly. Powered wiring must not be mounted over the electronic
board. Care must be taken that wiring is not squeezed or damaged.
Ensure that the antenna is mounted as far as possible away from power wiring and is not in
contact with any powered part particularly in the terminal connection area.
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