Digital Terminal Loops By Means Of A Short Circuit Detection - roco Z21 multi LOOP Benutzerhandbuch

Z21 multi LOOP
®
It is essential, that the isolated track section is longer than the longest train on the layout with cars that
are equipped with power pick-ups or metal wheels. In case only cars with plastic wheels are used, the
maximum length of the loop section may be reduced to the length of the longest locomotive on the lay-
out. In case cars with metal wheels or wheels with a power pick-up are used, the length of the loop must
accommodate the whole train. Each metal wheel bridges the disconnecting points when passing. Bridging
both the disconnecting points at the entry point and the exit point at the same time will result in a short
circuit condition that even the reverse loop module is unable to handle.

Digital terminal loops by means of a short circuit detection

This mode requires the reverse loop section to be completely isolated from the main layout at the entry and
exit points. Hook up the module according to the wiring diagram. Please note that this operation results in
a higher burn off at the wheels and the tracks. If numerous terminal loops are used in a single power circuit,
all of the modules are able to detect a short circuit and reverse the poles at the same time. This means that
only one train is to drive into a terminal loop. The remaining terminal loops are not to be used at the same
time.
Caution: the short circuit detection is to be activated. The correct setting can be detected if the
"Sensor only" LED is not illuminated. Should this not be the case, press the button for 3 seconds
until the "Sensor only" LED goes out.
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