DCC motor noise

DCC motor noise

Postby ConducTTor » Sun Apr 11, 2010 3:20 am

Hey gang, after installing an ESU decoder I now have a locomotive with very loud motor noise when previously there was none (pre decoder). It sounds like a non chipped motor on dcc track. Any idea what the deal is and a possible solution?
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Re: DCC motor noise

Postby jmass » Sun Apr 11, 2010 10:28 am

besides the noise,is the loco running properly. if not i would recheck the wireing. if thats not the problem make sure nothing is rubbing inside. outside of that maybe a bad chip.
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Re: DCC motor noise

Postby CSD » Sun Apr 11, 2010 11:13 am

You may want to take a look at this: http://www.dccwiki.com/High-Frequency_Decoders

Some sites have suggested that changes to CV 9 can help with this.
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Re: DCC motor noise

Postby ConducTTor » Sun Apr 11, 2010 1:24 pm

@ jmass The noise is definately electrical buzzing as opposed to mechanical and the loco runs perfectly fine and all functions work as expected. Also, it's constant with no change in frequency with different motor speeds. It's definately decoder related.

@ CSD I found that page and read it but it's not very helpful in my opinion. I'll play around with the CVs and see if something helps.
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Re: DCC motor noise

Postby CSD » Sun Apr 11, 2010 2:51 pm

What is the model of ESU decoder you are using?
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Re: DCC motor noise

Postby ConducTTor » Sun Apr 11, 2010 3:12 pm

It's a LokSound Micro 52858.
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Re: DCC motor noise

Postby CSD » Sun Apr 11, 2010 4:34 pm

Hum. The only things I can recommend are adjusting CV9 and insuring that the decoder connections are isolated and not shorting on the frame or circuit board. Calling ESU may help.
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Re: DCC motor noise

Postby ConducTTor » Sun Apr 11, 2010 11:04 pm

Dang it, the Lenz Compact I have is very limited and will only program CV 1-8. So, this will have to be dealt with when I get some other controller/programmer :(
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Re: DCC motor noise

Postby CSD » Mon Apr 12, 2010 10:29 am

Perhaps a visit to your local hobby shop with loco and track in hand.
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Re: DCC motor noise

Postby ConducTTor » Mon Apr 12, 2010 10:52 am

Uh huh....
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