Linked Module M1

BLOCKsignalling M1 Module

  • 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 module times out or until the train is detected by the infra-red sensor
  • 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

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 (ie stops the train) and signals on 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 connect to an led to show the sequence has been completed.

Connections

The module has screw terminals for all its external connections.

The train sensor connects to the A, GND, and C terminals (see later for the different types of sensor which can be connected).

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 it wil not function.

The relay output terminals are rated at up to 1A at 24V DC.

BLOCKsignalling M1 Module Connections

 

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.

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 (to simulate it being triggered).  After 5 seconds, Relay 1 should energise (you will hear it click, and its red led will light).

Five seconds later, Relay 2 should energise (you will hear it click, and its red led will light).  After a further five seconds, Relay 2 will de-energise.

 

The PROG 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, followed by Relay 1 turning off five seconds later.

Finally, five seconds after Relay 1 tunrs 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).

BLOCKsignalling M1 Module Test Program

 

To test the DONE and TRIG connections, switch off the power, and link the DONE and TRIG terminals together.

Switch on the power and then press the push button.  The module will repeat the sequence above, but this time, when the sequence is complete, it will restart as if you had pressed the push button to trigger the module again.

BLOCKsignalling M1 Module Test Program

 

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 are to 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 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 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 some time later.

In this case, we have not made a connection to the DONE terminal yet as we are only showing one module.

BLOCKsignalling M1 Module Fiddle Yard Wiringg

 

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 line 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.

BLOCKsignalling M1 Module Example Wiring

 

Program 3 - Points Operation

This program is intended to operate sets of points (using solenoid points motors) to route trains.

Once triggered, Relay 2 is energised and selects the route direction, then Relay 1 is energised for 1 second to operate the points.

When the train reaches the sensor, Relay 2 is de-energised and then Relay 1 is energised for 1 second to operate the points.

Wire the normal and reverse wires of the points to suite the direction you want the points to operate.

Always use with a CDU.

Delays are adjustable.

BLOCKsignalling M1 Module Points Wiring

 

More than one set of points can be connected. 

Wire the normal and reverse wires of the points to suite the direction you want the points to operate.

BLOCKsignalling M1 Module Solenoid Points  Motor

 

Program 4 - Wiring Tortoise or Cobalt Points Motors

This program is designed to operate stall type points motors.

Once triggered, both relays operate to reverse the polarity of the feed to the points motor.

When the train reaches the sensor, both relays are de-energised and the feed tothe points motors is restored to the previous polarity.

The wiring of the points will determine the direction the start in when the power is applied.

BLOCKsignalling M1 Tortoise Wiring DC

 

Below is an alternative wiring arrangement, if you are powering your points motors with an AC power supply.

BLOCKsignalling M1 Tortoise Wiring AC

 

Program 5 - Change Direction

This program is designed to change the direction of the traction current.

Before triggering, both relays are de-energised and the power passes straight through.

Once triggered, the traction current direction is reversed.

When the train reaches the sensor, the traction current is restored to the original direction.

Delays are adjustable.

BLOCKsignalling M1 Module DC Direction Change

 

Program 6 - Dapol Signal

This program is designed to operate a Dapol Signals.

Once triggered, Relay 2 is operated for 1 second to change the signal.

After a delay, Relay 1 is operated for 1 second to change the signal.

When the train reaches the sensor, Relay 1 is operated for 1 second to change the signal then after a delay Relay 2 is operated for 1 second to change the second signal.

After the second signal is operated, the DONE indication is indicated on the output terminal.

Delays are adjustable.

BLOCKsignalling M1 Module Test Program

 

Program 7 - Led or Bulb Signal (3-aspect)

This program is designed to operate a Led or Filament Bulb Signals.

When the power is switched on, with the signals wired as below, the green aspect will show.

Once the module is triggered, the signal will immediately switch to red, then yellow after a delay.

When the loco passes the sensor, the signal will return to green and the DONE output will be indicated.

Delays are adjustable.

BLOCKsignalling M1 Module with led signals

 

Programs 8 - Misc

The following program allows you to design you own uses for the module.

BLOCKsignalling M1 Module

 

Each of the delays before each relay is energised can be set to between 1 and 255 seconds.

If the end time for a relay being energised is set to earlier than its start time, the relay will not be energised.

BLOCKsignalling M1 Module Bespoke Program