Manual KeerPlus3 │ version 2 – 2019
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Requirements of the Reverse loop
Because the module does not switch the first section, the rule applies that the section S2 must at least
have the length of the longest detected train. Should the train not fit in (for example a train set or a train
with a steering position), a short circuit will occur as soon as the wagons that are still in the first section
enter the reverse polarized S2.
Summary: S2 must be the length of the longest detected train.
In addition to the middle section S2, we also refer to S1 and S3, the two outer sections. The advice is to
use approximately 1.5x a locomotive length. In theory, a length of 5 centimetres would be enough to
generate a good detection. However, practice shows that contact between the rails and the wheels is
sometimes not guaranteed. To make the Reverse loop sections work reliably and stably, we recommend
using a longer length for this.
Mounting
The KeerPlus3 has 4 mounting points. It is advisable to mount the printed circuit board at height due to
the heat development of the voltage regulator. Preferably with the components on top.
Mounting the module in the upside down or lateral position is also possible if you consider the cooling of
the cooling element.
For the assembly you can use the printed circuit board assembly kit which
you can find in the webshop.
