Gaugemaster DCC18 next 18 decoder and coreless motor

[meatloaf]

Hi

 

Ive installed a DCC18 chip into an EFE j94.

 

Running is quite erratic atm, hopefully it gets better after a good run in. 

 

The decoder seems to be preprogrammed with interia settings and possibly setting that limit the speed of the loco as its got quite a low top speed on DCC compared to DC.

 

Are there any settings i should be changing to better suit a coreless motor? Back EMF for instance?

[meatloaf]

So to update, the loco runs fine on DC but with the above decoder installed its very jittery and stalls on every point. On DC it runs nicely over the same pointwork.

[7013]

I have two locos with Corless motors, One worked fine wthout any adjustments, I believe i switched the back EMF off on the other, but I cannot swear to it as it was a long time ago.

[Nigelcliffe]

I'd put a Zimo in anything.  They have well documented settings for coreless motors.  

 

Turning off the EMF control is a way to get around a decoder which lacks the ability to sense the motor's changes.  

 

 

 

 

- Nigel

 

[meatloaf]

Ive now swapped to a zimo chip and its miles better, still not perfect but much better

[Nigelcliffe]

8 minutes ago, meatloaf said:

Ive now swapped to a zimo chip and its miles better, still not perfect but much better

 

Have you adjusted it ?   Either read the Zimo manual,  or my way of doing it is written up here: 

 

http://www.2mm.org.uk/articles/Zimo-decoders.htm

 

 

[Izzy]

Try setting cv9 to 51, and cv56 to 133. These are the base settings Zimo recommend for coreless motors. Normally both are set at either 55 (default values) or 0 (for auto adjustment with the very latest firmware versions).

[meatloaf]

Havent adjusted it yet was just prinitng the appropriate pages from the manual.

 

Will try those setting tomorrow. Thanks folks