Dummy load for programming

U

UKSGR

Registered
24 Oct 2009
874
0
Bournemouth
Hi All

I have tried to program a LGB55021 that is in a dummy end car to reverse the lighting. Because there is no motor the controller is not picking it up. Does anyone know of a resistor value I can use whilst programming to overcome this?

Thanks

Paul
 
PhilP

PhilP

G Scale, 7/8th's, Electronics
5 Jun 2013
22,773
266
Tamworth, Staffs.
Almost anything you are likely to have will do the trick. - It will be 'powered' for such a short-time, it will not get hot.

Even a spare 18-24volt bulb should do.
 
ntpntpntp

ntpntpntp

Registered
24 Oct 2009
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8
56
UK
The programming track operates on a fraction of an amp, there's no significant current involved. Although most decoders will actually program without a load, the programmer can't read responses unless there is a load. A 50 or 100 ohm resistor across the track is usually sufficient.
 
Greg Elmassian

Greg Elmassian

Registered
8 Mar 2014
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San Diego
www.elmassian.com
And just for reference there are decoders that will not program without a real motor connected.

I have a small programming setup with a motor and a speaker (I have decoders that fit a standard socket)

 
U

UKSGR

Registered
24 Oct 2009
874
0
Bournemouth
Thanks all. I'll try these next time
 
PhilP

PhilP

G Scale, 7/8th's, Electronics
5 Jun 2013
22,773
266
Tamworth, Staffs.
Almost any model motor will do..

Voltage does not overly matter, as it only gets a pulse. - Though if you were to write the whole configuration file, a low-voltage motor might get slightly warm..