User manual

tams elektronik
!
English WBA-1 | WBA-2 | WBA-3
8. Check list for troubleshooting
Parts are getting too hot and/or start to smoke.
Disconnect the system from the mains immediately!
Possible cause: one or more components are soldered incorrectly.
à In case you have mounted the module from a kit, perform a
visual check (à section 6.) and if necessary, remedy the faults.
Otherwise send in the module for repair.
The LEDs connected to the module do not light.
Possible cause: The connection to the power supply is interrupted.
à Check the connections.
Possible cause: One or several LEDs are connected in the wrong
direction. à Change the direction!
Possible cause: One or several LEDs are defective. à Check the
LEDs.
Possible cause: If connected to direct voltage the connections "GND"
and "Uin" or "12V" are incorrectly connected. à Check the
connections.
Possible cause: There are more than 2 LEDs connected to one output in
parrallel or the number of LEDs connected in series to one output is too
high. Decrease the number of the connected LEDs.
The LEDs only light in one direction of motion.
Possible cause: There is no rectifier mounted in series although
connected to direct voltage. à Mount a rectifier.
Only WBA-1 and WBA-3: One or several LEDs seem to light
permantly.
Possible cause: The capacitors are not correctly soldered in.
à Check the connections of the capacitors.
Page 18