User manual

tams elektronik
LED-Control English
Connection to (analogue) d.c. voltage
When connecting the PCB to (analogue) d.c. voltage, you have to
observe the connections´ polarity. The LEDs shine in one direction of
travel only when connected to (analogue) d.c. voltage. If they have to
work in both directions of travel, mount an additional bridge rectifier
(e.g. item no. 83-19100-10, not included in delivery) according to the
connection diagram.
Connection to a decoder output
Connect the connecting point X4 on the PCB to the appropriate output
of the locomotive or function decoder. Connect the connecting point X3
to the return conductor of the output or the return conductor for all
outputs.
Alternatively you can connect the connecting point X3 to the vehicle´s
housing ground. Please note that in this case the LEDs flicker due to
principle when the decoder is controlled in Motorola format.
Info: Light emitting diodes (LEDs)
When operated in the forward direction the LEDs light. They are
available in several different versions (differing in colour, size, form,
luminosity, maximum current, voltage limits). The longer lead of wired
LEDs (not with LEDs for ZSB-2) is normally the anode (positive pole).
With SMD-LEDs the cathode normally is shown by a mark on the
housing.
When using LEDs you always have to limit the current conduction (e.g.
by mounting a series resistor), otherwise they will be damaged after a
short operating duration. The LED Control
Basic
has an integrated
constant current source limiting the current at the output to 20 mA.
Thus it is possible to connect LEDs directly (without series resistor).
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