User manual

tams elektronik
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FCS modules English
D1, D2 LED, white (not supplied)
D3, D4 LED, red (not supplied)
D5 if required, e.g. diode 1N4148
X1 connection to "+" of the accumulator batteries
X2 connection to "-" of the accumulator batteries
X3 connection to the cathode side of the LEDs (-)
X4 connection to the anode side of the LEDs (+)
8. Check list for troubleshooting
Parts are getting very hot and/or start to smoke.
Disconnect the system from the mains immediately!
Possible cause: The connections to the power supply are connected
the wrong round. à Check the connection. In this case the module
is probably damaged irreparably.
The LEDs do not light / flash.
Possible cause: The LEDs are connected the wrong round. à Check
the connections.
Possible cause: The power supply is interrupted. à Check the
connections.
FCS-L: After applying the supply voltage the LEDs flash quickly and
then go out.
Possible cause: The supply voltage is higher than 1,8 V. à Reduce
the input voltage, for instance by mounting a diode in the lead-in
wire from the power supply to the module.
FCS-L: The red or the white LEDs light brighter than the others.
Possible cause: The burning voltage of the red and the white LEDs
differs considerably. à Connect a series resistor (value from 1 to
20 W) to the LEDs that light brighter.
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