Connecting The Switching Inputs - tams elektronik FD-R Extended Series Manual

English FD-R Extended

6.11. Connecting the switching inputs

The switching inputs switch respective to the decoder ground and thus
can be connected to all (external) circuits allowing to make contact to
earth. It is possible to connect reed contacts or Hall sensors, for
example, which make contact to earth when getting into the magnetic
field of a permanent magnet.
Beside the two connecting points IN1 and IN2 you can use the
connecting point IN3 (X15) as a (3 rd ) switching input. It is a
precondition that IN3 has been defined as a switching input in
CV##167 and 168 (and not as a servo output).
Connect the reed contacts to the switching inputs (X13, X14 or X15)
and the earth connection. Reed contacts are not polarized, you can
assign the two contacts voluntarily.
When connecting Hall sensors check for the correct polarity. Connect
the earth connection of the Hall sensor to X9, the connection for the
voltage supply to X12 and the output to one of the switching inputs
(X13, X14 or X15).
When exchanging the earth connection for the connection of the
!
!
voltage supply, the Hall sensor can be damaged!
Fig. 6:
Connection of reed contacts
and Hall sensors to the switching inputs
Page 28