SS2A BLOCK SIGNALLING DC SIMPLE SHUTTLE MODULE WITH SPEED CONTROLLER.
DC Shuttle Train Controller with Adjustable Delay and Built-in Speed Controller.
Automatically operates a train backwards and forwards along a single line.
Waiting time at the ends can be varied with a simple screwdriver adjustment.
The module includes speed control, so a separate controller is not required.
An acceleration function is also included for trains departing for a more realistic operation.
An led on the PCB shows when the train is moving forwards, and flickers when it is reversing.
Fixed and random delays can be programmed easily for realistic operation.
Microprocessor controlled for accuracy.
Simple wiring and operation.
The SS2A is one of our new range of DC shuttles, designed to add variety and interest on a layout by operating a model train back and forth along a section of line.
The train stops when it crosses a track gap at the end of the line, cutting off power to the locomotive.
A diode is fixed across the gap and so allows the train to run in the opposite direction when the module changes the polarity to the track.
Two diodes are supplied to fix across the track breaks.
The delay time can be set between 1 second to 10 minutes using the simple adjustment on the module.
Easy programming allows the delays to be either fixed or random (between 25% and 100% of the set time on each run).
This model has a built-in DC throttle, so you can set the delay with one adjustment and the speed of the train with the other, whilst saving the cost of an additional DC throttle to control your shuttle trains.
An acceleration function is also included for trains departing for a more realistic operation.
Timing Adjustment
The timing is adjusted with a small screwdriver, which fits into a slot in the adjuster mounted on the PCB.
The adjustment is very fine for the first half of the rotation, setting the timing between 1 second and 90 seconds, then becomes more coarse up to the maximum setting of 10 minutes.
The time set is the interval between each change of the polarity of the feed to the track. It needs to be set to allow the train to reach the end of the line, and then wait for the required stopping time.
If the setting too low, the train will not reach the end of the line before changing direction.
The module reads the time setting when the power is applied, and each time the relays are switched.
Generally, it is easiest to set the approximate time using the diagram above, then switch off the power for 10 seconds or so. When the module is re-powered, it will read the setting and commence its operation.
Minor adjustments can be made whilst the unit is running, and they will be used at the next opportunity.
Power Supply
The module requires a 12V DC power supply, with a minimum recommended capacity 0.5A for N and Z scale and 1.0A for OO and HO scale.
One of the wall socket type 12V DC power supplies is ideal. DO NOT use your existing DC Throttle or Train Controller as this will damage the SS2A.
It is important to connect the power with the right polarity, otherwise the module will not operate.
No damage will be caused by incorrect polarity connection, or using a power supply of other than 12V, although the module may get warm and shutdown to protect itself.