TILLIG BAHN 08415 Mode D'emploi page 2

Operating Instructions Switching Relay
Safety noteS
The relay must only be connected to power supply
sources which are identified as accessory transfor-
mers in the TILLIG catalogue. The maximum opera-
ting voltage is 16 V, and the maximum load capacity
of the relay contacts is 1 A. Higher currents will lead
to the contacts sticking and must thus be excluded
by suitable measures (e.g. fuse module, article no.
08418). All warranty entitlements will be rendered
null and void, if examination of the defective relay
reveals failure to observe these operating condi-
tions, or if the security seal on the housing is da-
maged.
brief deScription of the relay
This relay module replaces the previous mechanical relay
and delay timer, article numbers 08410 and 08420, with
a modern electronic solution, whereby the original pro-
perties are maintained practically unchanged. The special
feature of the new solution is the fact that relay and timer
functions are integrated into a single module and can be
defined by the user for a particular application by means
of a jumper (small wire bridge). Unlike its predecessors,
the new module requires a separate power supply, which
can be taken from any accessory transformer (12 ...16
V). The module possesses two floating two-way contacts
with a maximum current capacity of 1 A each. The control
inputs "E" and "A" are configured to be shortcircuitproof,
ensuring that almost any control signal in the range from
-16 V to approx. +0,5 V results in switching, for examp-
le: Key actuation to ground or AC voltage, track contacts
installed on the track ground side, reed contacts, opto-
couplers, etc. They can also be connected for interdepen-
dent switching between several relay modules. A setting
potentiometer on the module is used to set the switching
delay (range from approx. 9 s to approx. 5 min). An LED
signals the switching state "Relay OFF" (deenergised po-
sition). When the supply voltage is applied, the module
always assumes this preferred state automatically (LED
on). It also has data buffering to compensate for short-
term current fluctuations without changing the switching
state. If several relay inputs are interconnected, a changed
switch-on behaviour may occur.
overview of functions:
1. Bi-stable relay (jumper left); inputs "E" (LED off) and
"A" (LED on) switched by a pulse. Indicated in the
examples as "Time-Off".
2. Switching amplifier (jumper right), potentiometer at
"0" or turned fully to left, input "E" (LED off) switches
(pulse or steady current).
3. Timer switch (jumper right), delay adjustable at the
potentiometer, input "E" (LED off) switches (delay
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Item no. 08415
time starts when signal is removed), forced off-swit-
ching is possible via input "A" (LED on).
application exampleS for the relay
( illuStrationS laSt page )
1. light signals with train control
Isolators create a dead track section, which is connected
to the neighbouring track via relay contacts. If the relay
is on (button "E" pressed), then the section is isolated
from the power supply and the signal shows "red". A train
entering the section is stopped. A train approaching from
the other direction would be allowed to pass the section
unhindered thanks to the diode. When the "A" button
is pressed, the relay is de-energised, the signal shows
"green" and the stopped train moves off.
2. light signals with automatic,
timer-dependent train control
The configuration of example 1 is modified such that the
switching of the relay becomes automatic. The "E" but-
ton is replaced with a track contact which sets the signal
to "red" and isolates the track section. The "A" button is
not required, since the time delay function is activated by
way of the jumper. The relay is de-energised automati-
cally after the predefined time has elapsed. This con-
figuration could be used, for example, for a short stop
at an intermediate station. For trains from the opposing
direction, the track section can always be passed un-
hindered (relay de-energised, diode not required). The
timer is only started when the contact is tripped.
3. light signals with
train control and automatic reset
This configuration describes a preliminary stage of auto-
matic block control. A train entering the isolated section
is stopped at the "red" signal. The signal only changes
to "green" for the train to move off when the "E" but-
ton is pressed. When the contact is tripped, the relay
is automatically reset and the signal shows "red" once
more. A train from the opposing direction passes unhin-
dered thanks to the diode. A tripping of contact K1 has no
effect.
engliSh
4. automatic block control
This configuration describes a preliminary stage of auto-
matic block control. A train entering the isolated section
is stopped at the "red" signal. The signal only changes
to "green" for the train to move off when the "E" button
is pressed. When the contact is tripped, the relay is
automatically reset and the signal shows "red" once more.
A train from the opposing direction passes unhindered
thanks to the diode. A tripping of contact K1 has no effect.
5. manual reversal control
In this configuration, a train can only move as far as the
isolators. Thanks to the diodes, the train is able to leave
the isolated track section when the relay is switched. This
functionality is also maintained when the running direction
is reversed at the controller.
Caution! If this configuration is incorporated into an
existing layout, there is a risk of short circuits at the
intersection as a result of the polarity reversal bet-
ween running voltage and ground at the relay!
It is imperative to ensure track isolation to both sides.
6. automatic reversal control
In this example, the manual operation described above
is automated. The integration of two track contacts per-
mits automatic polarity reversal. The train then commu-
tes between the contacts. The diodes are not required.
In this case, however, the direction must be specified at
the controller, as this determines whether the left and right
contacts are connected at input "E" or at input "A". The
contacts are always on the ground side, on the left when
viewed in the running direction. A negative feature of this
configuration is that the train reverses without a pause at
the two end points.
7. automatic reversal control
with pause at the end points
It is first necessary to consider a preliminary configu-
ration stage. The reversing functionality is preserved.
The second relay is used as a timer. When the button
at input "E" is pressed, the module disconnects the
running voltage from the track for the defined period of
time. If a contact K3 is inserted between K1 and K2 and
connected to input "E" of the timer relay, this produces
a configuration for a stop at an intermediate station. The
use of a third relay, which only extends the number of
available contacts at the pole-switching relay, assumes
special importance: When the contacts are tripped, the
pole-switching relay and the additional relay are swit-
ched. At the same time, the timer which stops the train is
started. After the set delay, the train moves off in the op-
posite direction. The additional relay prevents the timer
from being restarted. The opposite contact is now
active. Here, too further contacts can be used for inter-
mediate stops. All further contacts are connected directly
Please note: This TILLIG product is subject to the sta-
tutory warranty entitlement of 24 months from the date
of purchase. This warranty claim expires if the product
is interfered with, modified or converted after the point
of time of the customer acquiring ownership. Where ve-
hicles have an integrated interface, claims for warranty
can only be asserted if the vehicle concerned is returned
in an as-delivered state (without built-in digital decoder,
with plugged-in interference suppression kit).
at input "E" of the timer. The use of the other relay inputs,
i.e. whether switching on or off, is dependent on the run-
ning direction set at the controller. Whenever the power
supply is to be disconnected, it is important that the train
be standing between contacts K1 and K2, as this enables
the automatic operation to be resumed with no further in-
tervention when the layout is next switched on.d with no
further intervention when the layout is next switched on.
8. intermediate stop
It is possible to provide for intermediate stops between
the contacts K1 and K2. The corresponding contact
(e.g. K3 for the running direction from K2 to K1) is to be
arranged on the left when viewed in the running direction.
A switching relay is required for each intermediate stop.
This relay interrupts the connection to the timer relay
after a metal wheel has touched the contact. The connec-
tion between the intermediate-stop contact and the timer
relay is only restored with a change of running direction
immediately before the intermediate-stop contact is to be
triggered again (e.g. by K2, if K3 is to be reactivated).
The depicted wiring provides for an intermediate stop in
each direction. It is possible to leave out individual stops
(e.g. K4 and relay 4) or equally to add further intermedi-
ate stops to the circuit. It must be ensured that all wires
connecting to the input of the timer relay are provided with
diodes (observe the depicted polarity) in order to exclude
coupling back to the running-direction relay.
9. automatic reversing loop control
This configuration permits trains to pass a reversing loop
automatically. As the polarity of the track connection is
reversed for the new running direction, the link to the
remaining layout is only possible through a metallically
separated controller transformer or by way of a switchab-
le, double-isolated track section. The polarity reversal for
the relay. Switching is effected by contacts K1 and K2,
whereby K1 sets the points straight and switches the re-
lay into the "on" position. K2 sets the points to "branch"
and switches the relay into the "off" position. To ensure
reliable switching, K1 and K2 must always be installed on
the ground side of the track. When the system is switched
on, it must be ensured that the points are in the "branch"
position when the relay is de-energised.
368940 / 24.06.2020