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2rail-detection-en
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| + | ======GCA99 2-Rail current detection ====== | ||
| + | [[english|{{ rocrail-logo-35.png}}]] | ||
| + | [[english|Content]] -> [[hardware-en|Hardware]] -> [[hardware-en#interfaces|GCA]] | ||
| + | * [[mgv-overview-en|The GCA Family]] | **GCA99** | ||
| + | \\ | ||
| + | |||
| + | ===== The problem ===== | ||
| + | If you are using a 2-Rail system with current detection you must make sure that all surrounding tracks have the same voltage level as the detection section.\\ | ||
| + | This will trigger an event as soon as the first current drawing wheel set touches the isolated detection track.\\ | ||
| + | In all other cases the event will come only after the whole locomotive is on the isolated track. This could be too late under certain conditions.\\ | ||
| + | |||
| + | |||
| + | ===== The solution ===== | ||
| + | Use a dummy detection unit for all surrounding tracks:\\ | ||
| + | {{mgv:hardware:2rail-dummy-detect.jpg}}\\ | ||
| + | \\ | ||
| + | Example of how to wire the tracks:\\ | ||
| + | {{mgv:hardware:2rail-dummy-wiring.png}}\\ | ||
| + | The sensor event will only occur after the locomotive is completely on the sensor track if the dummy is left out.\\ | ||
| + | |||
| + | ===== The Printed circuit ===== | ||
| + | |||
| + | The previous picture , shows a rough solution to make this printed circuit. | ||
| + | |||
| + | Here are some files to make the real PCB. | ||
| + | |||
| + | {{mgv:hardware:mgv99.pdf}} the PCB | ||
| + | |||
| + | {{mgv:hardware:mgv99sch.pdf}} The schematic | ||
2rail-detection-en.txt ยท Last modified: 2018/11/12 08:56 (external edit)
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