Connections - tams elektronik 30 plus Series Manual

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6. Connections

Note the following comment in order to protect the
!
decoder from (maybe irreparable) damage!
Avoid all conducting
accessories connected to the decoder´s common return conductor for
all function outputs on the one hand and metal parts of the vehicle or
the rails on the other hand. Connections result for example from badly
isolated connecting wires (as well at the stripped ends of connecting
wires not in use) or insufficient fixing and isolating the decoder or the
accessory, for example. Risk of short circuit! In this case the overload
protection of the decoder is not able to protect the decoder from
damage.
Before connecting the motor, lighting or other accessories check if the
current is below the maximum permissible values and the total
current is below the safe load. Should the permissible current be
exceeded, this can result in damage to the decoder. Exceeding the
motor current or the permissible total current of decoders with
overload protection, will lead to switching off the decoder.
You should under no circumstances connect the decoder´s common
return conductor for all function outputs to vehicle ground. Risk of
short circuit!
Old analogue driving transformers (e.g. models in a blue housing from
Märklin**) are not suitable for use with digital decoders in analogue
operation! These transformers have been designed for the older
supply voltage of 220 V and, due to construction, generate very high
excess voltage impulses when changing the driving direction. When
using them with the modern supply voltage of 230 V too high excess
voltage impulses can occur, damaging electronic parts on the
decoder. For that reason only use driving transformers designed for a
net voltage of 230 V.
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Locomotive decoders of the series 30 plus
connections between the decoder and