SAS2BR DC SHUTTLE WITH ACCELERATION.
Operates DC Model Trains Automatically with Station Stop and Acceleration.
Runs a DC equipped loco back and forth along a single section of track.
Optional station stop function brings the train to rest at a station.
Realistic acceleration and deceleration.
Quick and easy to connect and set-up.
For a long while simple shuttles have been available to model rail enthusiasts to operate DC locos back and forth along a single section of track.
We had wanted to add further realism by controlling acceleration and deceleration, allowing the option of station stops and so on.
For the modeller looking for a quicker solution, we have designed the SAS2-BR.
This module is a self-contained DC throttle, designed to operate a single loco along a section of track.
Upon reaching the end of the track, the loco will decelerate to a standstill, wait for a period, then accelerate in reverse.
It will run to the other end of the track and then decelerate to a standstill, wait again, and then accelerate off forwards.
This action would be appropriate to single line with one train and two terminus stations.
There is also the option to add one or more intermediate stations.
In this case, as the train enters the vicinity of the station, it automatically slows to a standstill, waits a set time at the station and then sets off again.
There can be any number of such stations on the single line.
Many programming options are catered for; to control the waiting times, speed, and randomness of stopping times.
Power Supply
The module is designed for a supply voltage of 12V DC.
The module will not be damaged by reverse polarity, being connected to AC rather than DC, or input voltage up to 35V DC or 25V AC.
Normal traction current is below 0.2A for N gauge and 0.3A for OO and HO gauges for the speeds shuttle trains are normally operated at.
The module can provide up to 0.5A of traction current, and a power supply with a minimum output of 0.5A is recommended for Z and N gauges, 1A for OO and HO.
The output is protected against short-circuits.
Speed Setting & Waiting Time Adjustment
The locomotive top speed is set by the SPEED adjustment on the module.
Generally the midway position shown in the image below will be a suiatble starting point.
The waiting time at the station(s) and ends is normally set by programming.
These waiting times can only be adjusted by the TIME adjustment on the module, if the individual settings are programmed to a value of 1 (see below).
Emergency Stop
If you want to stop the train, either in an emergency, or perhaps to re-rail or change a loco, press the button on the PCB.
Track power will be removed and the train will immediately come to a standstill.
The led on the PCB will flash 0.5seconds on/ 0.5seconds off.
To re-power the train, press and hold the PCB button for 1 second and then release.
Programming Procedure
The module is programmable, and many of the settings can be adjusted to suit.
Programming is performed holding down the Push Button when switching on the power.
When programming, there are two values to be entered.
The red led on the PCB flashes at 1 second intervals.
When the required number of flashes is seen (see later for the list of possible choices) the button is released to store the first value.
At this point the led comes on for five seconds to confirm the first value is stored.
The led then starts flashing again, and this time the button needs to be pressed to store the second value.
Now the two values to be stored have been entered, the led flashes 10 times rapidly, and the module starts operating.
Each value entered can range between 1 and 255. If more flashes are seen, or the programming is aborted by switching off, then the programming must be repeated.
SEE PDF FILE FOR MORE INFORMATION.