tams elektronik LD-G-43, Руководство пользователя, Страница: 24 / 68

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LD-G-43 t a ms elektronik
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After soldering, check (preferably with a magnifying glass) whether connections or tracks
have been bridged with solder by mistake. This can lead to malfunction or destruction of
components or, in the worst case, the complete circuit. You can re-liquefy excess solder
with the clean hot soldering tip. The solder then flows from the board onto the soldering
tip.
3.3. Avoiding irreparable damage to the decoder!
Caution:
To avoid (in the worst case) irreparable damage to the decoder , observe the following
instructions:
1. No conductive connections to metal parts or rails!
Avoid all conductive connections between the decoder or consumers connected to the return
conductor for all functions on the one hand, and metal parts of the vehicle or the rails on the
other hand. Connections are caused e.g. by insufficiently insulated connecting cables (even
at the stripped ends of unused connecting cables!) or insufficient fastening and insulation of
the decoder or consumers. Danger of short circuit! In this case the overload protection of
the decoder is ineffective!
2. No connection of the return conductor to vehicle ground!
You should under no circumstances connect the decoder´s common return conductor for all
function outputs to vehicle ground. Risk of short circuit!
3. Exclude overload!
Before connecting the motor, lights and additional accessories, check that the current is
below the maximum permissible values and that the total current is not exceeded. If the
permissible current is exceeded, the decoder may be damaged during commissioning.
4. No use of old analogue driving transformers!
Old analogue driving transformers (e.g. models with blue housing from Märklin**) are not
suitable for the use of digital decoders in analogue mode! These transformers are designed
for the formerly common mains voltage of 220 V and generate very high overvoltage
impulses when switching the driving direction. When used with today's usual mains voltage
of 230 V, such high overvoltage pulses can occur that damage to the components on the
decoder is caused.
24 | Connections