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Power to the Servo


RedgateModels

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First problem I had with wiring up the MSE servo unit to drive the signal was that of power supply. My Accessory power bus on Summat Colliery is driven by a laptop psu and whacks out 18v DC, great for supplying CDU units but likely to fry the controller box that needs 12v DC.

 

Now, the MERG pulsed accessory decoder boards I use also have an option of an on-board 12v regulated supply to drive small steady state devices. These parts are optional in the build, but thankfully I saw fit to fit them "just in case". 5 minutes probing with a multimeter told me that I had 12v across the small capacitor next to the voltage regulator so two wires were soldered to either end of said cap and threaded through to the controller box

 

DSC00413.JPG.b64bd883c2543d6d4b641a2c62e3fa92.JPG

 

The controller box was screwed to the underside of the baseboard and wires were run from it to a switch on the Peco point solenoid (controlled by the MERG decoder) and power applied

 

DSC00414.JPG.ae3135974dd38f80c81510f776a64d09.JPG

 

Dynamis connected up and hey presto, fire the catch point and the servo does it's thing 😁 - now to fix the servo and connect it to the signal

Edited by RedgateModels

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Aha! I've exactly the same kit sitting here awaiting fitment (well, sans decoder anyway) - would have been this weekend but time ain't going to permit even thinking about it.

 

Look forward to reading of how you get on.

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  • RMweb Gold
Aha! I've exactly the same kit sitting here awaiting fitment (well, sans decoder anyway) - would have been this weekend but time ain't going to permit even thinking about it.

 

Look forward to reading of how you get on.

 

as you should be able to see I got it working ... all I can say is take your time, read the instuctions and take it steady .....

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