10
Power Station LV101
digital operations the direction of travel is dependent on the
locomotive and not track polarity, the locomotive will not change
its direction of travel when the polarity within the reverse loop is
changed.
a1
a2
b1
b2
~
~
= /
Power Supply
for Relays
Twin-coil Relay
Isolated Track Contacts
Figure 6: Wiring of Reverse Loops
Traveling the reverse loop counter-clockwise is done in a similar
manner, now contacts a1 and a2 ensure that proper polarity is set.
Notes:
The distance between track contacts a2 and b2 must be longer
than the longest train that travels the reverse loop.
If the reverse loop is only traversed in one direction, then either
contacts a1 and a2 or contacts b1 and b2 are not needed.
The track contacts used in this example can actually be auxiliary
contacts set by the switch machine for the switch.
If you wish to traverse the reverse loop with a locomotive without
a decoder (analog locomotive), proceed as follows:
•
drive the entire train into the reverse loop (the train must be
between contacts a2 and b2)
•
stop the train and change direction with your handheld (LH100).
•
now manually change the polarity in the reverse loop (for
example by using push buttons connected in parallel with
track contacts a2 and b2)
•
continue driving the train through the reverse loop.
You must use this sequence with analog locomotives (non-