C&S #22 DC Loco on EX Command Button #10

[palallin]

The EZ Command manual says this about running a DC loco on Button #10:
"NOTE: WHEN OPERATING A DC LOCOMOTIVE ON ADDRESS "10," BE SURE TO MONITOR IT CLOSELY. SOME
DC MOTORS ARE SUBJECT TO OVERHEATING AND DAMAGE WHEN OPERATING FOR LONG PERIODS OF
TIME ON DCC SYSTEMS."

I have tried for the first time to run my C&S 2-6-0 #22 (from a very early On30 set) using 10, and it will run, fairly smoothly, BUT the motor (I guess_) makes a high-pitched buzz/hum sound that sounds almost like a whistle.

Is this sound telling me that I should not run this DC loco using the EZ Command?

Thanks for any info!

[dutchbuilder]

No that is normal.
What you hear is the frequency of the dcc data stream.
That's why some motors go belly up.


Ton

[Hunt]

palallin,

What you are hearing is the motor vibration resulting from using a modified AC waveform to run a motor designed to be run using DC. It does shorten the time before failure of the motor.

Research "DCC zero bit stretching"   

[palallin]

Thanks, folks.

I think I will find a DC pack to piggyback onto the EZ Command per the instructions before running the Mogul much.

[Hunt]

. . .
I think I will find a DC pack to piggyback onto the EZ Command per the instructions before running the Mogul much.

No help,  damage issue remains!

The DC power pack just gives you a separate unit to control the DC locomotive and opens up address 10 as a digital address.   The DC locomotive is still being powered by a modified AC waveform from the DCC E-Z Command Control Center not the DC voltage from the DC power pack.

[palallin]

Oh.  Thank you for that clarification;  I apparently misunderstood the manual on that point!

I guess I need to wire a regular DC pack into the power leads using a center-off switch to alternate between the DCC and the DC.  Shucks.  I thought this would be simpler.