RailPro > RailPro Specific Help & Discussion
Tcs keep alives
Pizzapizza:
Blue and yellow no rectifier , and like I stated they do work they just slow down and I’ve never seen it before when I used to run DCC
Alan:
With shell off can you put a voltmeter across the motor wires while the effect occurs? If there are diodes as part of the KA they would cause a 0.7V drop in voltage for each diode used. If that is the case you will see the voltage at the motor drop exactly 0.7V for each diode in the KA during the slowdown. Curious to see if the voltage drop is a multiple of 0.7 i.e. 0.7, 1.4, 2.1, 2.8, etc. If the voltage drop is not a multiple of 0.7 then the diode drop theory is garbage.
Pizzapizza:
OK according to Tim ring there is no current keeper on the market that will keep your locomotive going the same speed if it loses power temporarily they are currently working on one now
Alan:
--- Quote from: Pizzapizza on April 10, 2019, 11:13:38 AM --- OK according to Tim ring there is no current keeper on the market that will keep your locomotive going the same speed if it loses power temporarily they are currently working on one now
--- End quote ---
Oh yes there is. Bill's original bridge rectifier solution: https://rpug.pdc.ca/index.php/topic,327.0.html
Pizzapizza:
I use LM3s modules only they have that rectifier built into them I don’t understand why anybody would want to drop their voltage by 1 or 1 1/2 volts maybe I’m missing something here I don’t know. So you’re telling me if you’re running a railpro engine with your current keepers if you turn the power off you do not see a drop in your locomotives speed? and doesn’t not slow down? in the DCC world that does not happen.
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