tams elektronik LD-G-43, Руководство пользователя, Страница: 33 / 68

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t a ms elektronik LD-G-43
3.10. Connecting inductive loads
When connecting inductive loads (e.g. TELEX couplings, relays or other accessories with coils),
you should switch a free-wheeling diode (e.g. 1N400x) in parallel, in order to prevent damage
at the output. Check to connect the anode of the diode to the function output.
Connecting accessories via a relay
When you want to switch an accessory / accessories via the decoder, which connection would
lead to exceeding the maximum current at the output or of the decoder, you can switch the
accessories via a relay (e.g. 1xUm 1A 12V, item-number 84-61010) and connect them directly
to the vehicle´s current collector.
The current consumed by the relay depends on its type. The relay named in the example
needs approx. 100 mA.
To prevent damage to the output, you must connect a free-wheeling diode in parallel with the
relay.
Connection of an accessory via a relay
3.11. Connecting the switching inputs
The switching inputs switch to decoder ground and can therefore be connected to all
(external) circuits via which a ground connection can be made. It is possible, for example, to
connect reed contacts or Hall sensors which establish the ground connection as soon as they
enter the magnetic field of a permanent magnet.
Connection of reed contacts
You can use both normally open contacts and changeover switches (changeover contacts).
Connect reed contacts to the switching input and the ground connection of the decoder
(GND). Reed contacts are not polarized, so you can assign the two connections as you wish.
Note: The glass bulbs of reed contacts are sensitive to mechanical damage!
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