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Two DCC engines starting to creep suddenly when others continue to run normal

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  • Member since
    October 2020
  • 2 posts
Two DCC engines starting to creep suddenly when others continue to run normal
Posted by Great Northern Fan on Wednesday, April 28, 2021 4:31 PM

In the last week two of my new DCC w/sound engines barely creep through the layout where just a few days ago, the were speed demons. Other similar engines continue to speed along as normal.  Have cleaned wheels so that's not the issue. Is there something on my NCE controller that might affect this.  I have done factory reset to both engines with no improvement.  Any suggestions would be appreciated. Thanks in advance, Cliff

  • Member since
    May 2002
  • From: Massachusetts
  • 2,899 posts
Posted by Paul3 on Thursday, April 29, 2021 10:05 AM

You said you reset them, but check the value of CV5 and CV6 just in case.  Set CV5 to 255 (full throttle) and CV6 to 128 (50% throttle) and see what happens.

You can also check them with a regular DC analog throttle and see if they run normally on that. Just make sure CV29 is set to allow DC operation (as in set at 38 or 06).

  • Member since
    February 2002
  • From: Mpls/St.Paul
  • 13,892 posts
Posted by wjstix on Thursday, April 29, 2021 10:27 AM

Who's the manufacturer of the sound decoders? Each one is a bit different.

I would second the idea of doing a full reset and then trying it on DC. The factory default on a decoder normally is to allow DC operation. If it runs normally on DC, but not on DCC, then there is a setting or other issue with the decoder.

Some decoders have a brake that's turned on with a function button and stays on until you turn it off. However, doing a factory reset should eliminate that.

After doing the reset, does the engine run on ID 03 / 0003? If you're doing the reset but then changing the decoder ID before testing it, it could be that ID number is part of a consist which is blocking the engine from running normally.

 

Stix
  • Member since
    November 2013
  • 2,775 posts
Posted by snjroy on Thursday, April 29, 2021 10:27 AM

(This is definitely a candidate for the DCC and electronics thread)

Hi there. You might want to provide more information, including loco types/manufacturer and decoder information. 

I'm not a guru, but I would start by disabling the DC enable function. The default might be in dual mode, and if you are not running in DC, it can cause weird engine behaviors in DCC mode.

 

Simon

  • Member since
    December 2015
  • From: Shenandoah Valley
  • 9,094 posts
Posted by BigDaddy on Thursday, April 29, 2021 7:12 PM

snjroy
(This is definitely a candidate for the DCC and electronics thread)

Definitely.

If you did a factory reset using an NCE and the NCE's reset, it may not work.

 

Henry

COB Potomac & Northern

Shenandoah Valley

  • Member since
    September 2004
  • From: Dearborn Station
  • 24,281 posts
Posted by richhotrain on Thursday, April 29, 2021 7:30 PM

snjroy

You might want to provide more information, including loco types/manufacturer and decoder information. 

I agree. Who is the manufacturer? Type of loco? What brand of decoder?

Rich

Alton Junction

  • Member since
    January 2011
  • From: NS(ex PRR) Mon Line.
  • 1,395 posts
Posted by Jimmy_Braum on Friday, April 30, 2021 5:11 AM

Does it happen after the loco was selected? 

This happened on my club layout, and we discovered it was the controllers causing this. We sent them back to tonys train, and we got the most recent nce hand held

(My Model Railroad, My Rules) 

These are the opinions of an under 35 , from the east end of, and modeling, the same section of the Wheeling and Lake Erie railway.  As well as a freelanced road (Austinville and Dynamite City railroad).  

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