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Post by uncaduncad on May 3, 2022 19:09:37 GMT -5
Since it's my first loco, I have only created a short oval track using Rokuhan Z with a modest 245 degree loop. I am using a Digitrax DCS52 Zephyr with UP6Z voltage reducer. Track tops out at less than 7V DC. I'm aware that this is a DCC controller but for testing it's supposedly safe to select LOCO 000 for DC models. Question: With track power on at all and no throttle/brake on; as soon as I put the A or B unit on the track they emit a strange kinda high pitch noise. This may be completely normal. I'm just used to N scale noises. The loco runs just fine but with the track topping out under 7V it's not breaking any records although I like my trains slow anyway.  Thanks for any replies. |
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Post by BAZman on May 3, 2022 22:16:20 GMT -5
That’s because the motors still see the A.C. Voltage of the lopsided track voltage, changing 8-10 KHz (thousands times a second). You also need a Tru RMS reading volt meter to know the correct voltage. You read 7 volts not so much from the diode reduction, but the ‘Analog’ waveform of DCC. It is sending full voltage every other time and much less on the the other time. Average: ~half voltage.
Running in ‘Analog’ mode depends on the motor type. Permanent Magnet motors can survive but still not right. The Corless motors are a no-no.
Please put a decoder in. Especially if you want to run more locomotives, at the same time.
NOTE: even with the Voltage Reducer, there still is a lot of Current (Amps) and can some interesting wheels, trucks that no longer are usable. *Aleays watch or listen for your trains running !!! And, the Zephyrs Circuit beaker May not activate and, even if it does activate, it shouts off and turns back on repeatedly (forever so you will have that wheel/axle meltdown.
Other that’s that, DCC can do a lot of great things.
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Post by rgs455 on May 3, 2022 22:24:35 GMT -5
This is normal if you put s DC engine in track fed with any DCC system.. DCC signals are basically a modulated AC signal..
my my old LENZ DCC could run DC trains with the same effect.. it may not harm your old HO stuff.. but it's slow steady killer for the precision motors in Z engines.
Stop it buy a DC powerpack suited for Z, or install decoders. BR Boris
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Post by uncaduncad on May 4, 2022 13:29:50 GMT -5
Thank you, both! Decoders on order and I am going to hook up my N Scale DC controller this afternoon through the UP6Z and run like that until the decoders are here and installed.
Thanks again!
David Hoskins
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