BLOCKsignalling M1 Manuale utente
UNIVERSAL MODULE FOR SEQUENTIAL OPERATIONS M1
Pre-programmed multi-functional module with two separate relay outputs
Capable for driving points motors, operating signals, switching and reversing
loco direction, etc
Action is triggered by push-button, switch, reed-relay, or another module of
the same type
Action is carried out until the train is detected by the infra-red sensor or the
module times out
When the action is completed, the module provides an output signal which
can be connected to other modules of the same type
Programs can be easily adjusted to give great flexibility in operation
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Introduction
The BLOCKsignalling module M1 has been designed to carry out a pre-programmed
function when it is triggered, such as powering a section of track to move a train
forward. It then it waits until a train reaches the infra-red sensor. At this point, the
module completes the action (eg stops the train) and signals on one of its outputs
that the task has been completed (the "DONE" terminal).
The DONE output would normally be connected to the trigger ("TRIG" input) of
another module of the same type, which would then carry out its operation.
By linking several modules in series, successive actions can be carried out one after
another.
If the modules are connected in a loop, the operation will continue indefinitely. It the
loop is not complete, the action can be started by an input (such as pressing a
button) and will continue until the last module has completed its task. The final
output could be connected to an led to show the sequence has been completed.
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Connections
The module has screw terminals for all its external connections.
The train sensor connects to the A, GND, and C terminals.
The DONE and TRIG terminals are for connection to adjacent modules. The TRIG
input is activated when connected to GND, by a switch, push button or other
module. Note the push-button on the module connects the TRIG terminal to GND
and so can be used to trigger the module. This terminal must not be grounded at the
time the module is powered, otherwise it will enter programming mode (see later).
The power input is designed for 12V DC. Reverse polarity will not damage the
module, although the module will not function.
The current drawn is 50mA when one relay is energised, 100mA when both relays
are energised, and 10mA when no relays are energised.
The relay output terminals are each rated at up to 1A at 24V DC.
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Connecting the Infra-Red Sensor
An Infra-Red source and Infra-Red detector are moulded into a single 5mm x 6.5mm
package that can be located below the track bed to reflect light off rolling stock.
Identify the Sensor 1 leads from the diagrams (there is a small chamfer on the edge
of the casing) and connect to the terminals marked A and C on the module. Leads E
and K both connect to terminal GND.
The wires can be extended using small chocolate block and extra lengths of cable if
required (not supplied).
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Programming
Many of the settings used by the module can be changed (re-programmed) by the
user.
The main memory location is memory 2 (m2) which is used to select which program
the module runs (Program 1, Program 2, etc).
The remaining memory locations (m3,m4,m5, etc) can be set with different values to
alter the operation of the module.
The uses of each memory location are given at the end of this document.
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BLOCKsignalling www.blocksignalling.co.uk
Program 1 - Test Program
This is the default program when the module is first supplied and is designed to test
the correct operation of the module. The timings cannot be adjusted.
Connect up the sensor (see later) and a 12V DC power supply. The led and push
button are optional.
Switch on the power. The PROG led should faintly flicker indicating it is in
standby. If not, check the power supply and polarity, and verify the infra-red sensor
connections are correct.
Press the push button on the module, or the connected push button (to simulate it
being triggered). After 5 seconds, Relay 1 should energise (you will hear it click, and
its led will light).
Five seconds later, Relay 2 should energise (you will hear it click, and its led will
light). After a further five seconds, Relay 2 will de-energise.
BLOCK
signalling
12V DC
POWER
SUPPLY
VIN
GND
+-
A
GND
C
INFRA-RED
SENSOR
PUSH
BUTTON
“TRIGGER”
1k RESISTOR
“DONE”
LED
RELAY2 ENERGISED LED
RELAY1 ENERGISED LED
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BLOCKsignalling www.blocksignalling.co.uk
The led flashing shows the module is searching for a train and the module will now
wait for an object in front of the sensor.
Place you hand close to the sensor and after 5 seconds Relay 2 will turn on for five
seconds then off after a further 5 seconds, followed by Relay 1 turning off five
seconds later.
Finally, five seconds after Relay 1 turns off, a final bright flash of the led for a second
shows that the task is done (this is the point at which the DONE signal is issued on
the DONE output terminal).
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BLOCKsignalling www.blocksignalling.co.uk
Program 2 - Fiddle Yard
A fiddle yard has a queue of trains. When the one at the front of the queue departs
each of the trains behind move up one position in the queue.
In the drawing below, we are just showing one train, which is stationary at location A
(due to the module not powering the isolated section of track). This train has arrived
from the right and stopped once it was unable to pick-up power from the track.
If the operator presses the push button (connected to the TRIG terminal), the module
will start to follow a built-in program. In this case, one of the relays on the module
will energise, and this will allow power to flow to the isolated rail and the loco will
move towards the left, entering the powered section of track (B).
When the loco reaches the sensor at C the train is detected and the relay on the
module de-energises making the isolated section dead again, preventing any other
locos entering the section.
The loco carries on until it reaches the isolated section at D. It will stop and wait
here until this section is powered from elsewhere.
At the point the train is detected at C, the module sends out a signal out on its
"DONE" terminal, so the sensor should be close to the isolated track at D. If this is
not possible, a delay can be programmed so that the DONE signal is not sent until
sometime later.
In this case, we have not made a connection to the DONE terminal yet as we are
only showing one module.
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BLOCKsignalling www.blocksignalling.co.uk
Now if we connect a second module upstream, when the first module completes its
task of moving the loco up to the infra-red sensor, the second module will be
triggered and will move its loco up also.
Obviously this can be extended to any number of modules, and if the track forms a
complete loop the modules can also be connected in a loop and will move the locos
around the loop one at a time.
In the diagram below, we have left out the power supply connections to the M1
modules for clarity. We have also left out the push button, because you can press
the push button on the first module and it has the same effect.
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BLOCKsignalling www.blocksignalling.co.uk
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