I just received a Bachmann gp 40 dcc ready But it won't run, the headlight and reverse lights come on but it don't move.
I know that my power and track is hooked up right because my other locomotive run just fine.
So I disassembled it to look for wires touching and such but I see no issues there. But I took the motor out and it has a bunch of capacitors wired to the case of the motor and to both + and - terminals on the motor...looks like they make a complete circuit to both sides. Need to know what that it all about and if it is needed or not.
Thanks.
If it's 'DCC Ready' there should be a dummy plug in the 8-pin decoder socket. If the dummy plug is missing power can't get from the wheels to the motor, and the loco doesn't run. If it's missing you can get a replacement from several sources, or install an 8-pin decoder.
Len
The Dummy plug is in it.
Okay. With power applied, what happens if you try moving the brass flywheel one way or the other? Does it start moving, or still just sit there?
Len
It just sit there. I took the motor out and de-soldered the caps and touched the leads to a 12v supply and the motor spun just fine. I tried to touch the leads to the track and it acted like it wanted to spin but it doesn't. Do the motor have to be wired to the board for it to work on the track?
Moose,
I believe in another post you stated you are running DCC, if so it takes more power to get it moving sometimes more than half throttle. Does the motor hum when the lights are on.
Second question is why waste time and money purchasing analog engines, just buy DCC on board and save time, money and headaches.
This is DDC ready it just don't have a chip in it. just the dummy plug is installed. I will try to set the cv for motor voltage
you can't set cvs in a locomotive without a decoder.....
Oh yeah your right...duh!!!
And yes, the motor has to be connected to the board with the dummy plug on it. That's why the dummy plug is there, to connect the power pick up from the wheels to the motor when no decoder is installed.
Len
While I had the motor out I tried to just touch the motor leads to the track rails and it wouldn't spin is that normal?
The motor is still a DC motor and it should run from a DC power source like a power pack. Is it possible you don't have the track properly wired up? Do you have the ability to connect the motor leads to the terminals of a DC power pack and test it with power from the pack instead of the rails?
*And was this loco brand new or second hand?
You still need a decoder, DCC is pseudo AC in a way, DC motors wont function correctly and you risk damaging it.
Quote from: jbrock27 on January 08, 2015, 09:46:00 PM
The motor is still a DC motor and it should run from a DC power source like a power pack. Is it possible you don't have the track properly wired up? Do you have the ability to connect the motor leads to the terminals of a DC power pack and test it with power from the pack instead of the rails?
*And was this loco brand new or second hand?
I unplugged the power pack from the pcp panel and ran a couple of leads from it to the motor leads and it spun like crazy.
So would I have a bad board on the locomotive not letting voltage thru? The Nce power cab is ok it runs my other loco just fine.
NCE Power Cab can control only locomotives with DCC decoder installed. A DCC Ready locomotive does not have a decoder installed.
Yes I did finally figured that out. I hookup my E-Z command controller and button 10 is for analog and the Locomotive ran just fine. So I'll Have to get a decoder to run it with my NCE system. That I didn't know....Live and Learn.
Glad I could help you figure out there was nothing wrong with your 12V DC motor Moose ;)
Brick, please see the results of Moose's test of just the motor using DC. I was not telling him he would not need a decoder in order to have his loco function on DCC. After he removed the motor from everything, he was having trouble getting the motor to just run by itself and was concerned they may be something wrong with it. Since the motor is a DC motor, it itself can be tested using a DC power supply. I know you have heard/read/seen people who take non DCC (analog) locos like Spectrums, Bachmann Pluses, Athearn Blue Boxes, Walthers Trainline, Proto 2 and 1Ks and have converted them to DCC running, w/o having to replace the motor. Why? Bc the motor still operates from DC.
I would like someone to confirm for me if my understanding of the motor is all wet or not. Thank you very much.
I'm a little unsure what you are asking me. I never said he should replace the motor. He said he touched the motor leads to the rails, which wouldn't have fed pure DC.
Quote from: Irbricksceo on January 09, 2015, 09:03:59 AM
I'm a little unsure what you are asking me. I never said he should replace the motor. He said he touched the motor leads to the rails, which wouldn't have fed pure DC.
I am not asking anything of you
Brick. I had typed the above in response to your post here:
Quote from: Irbricksceo on January 08, 2015, 10:31:30 PM
You still need a decoder, DCC is pseudo AC in a way, DC motors wont function correctly and you risk damaging it.
I also never said, that you said, that he should replace the motor.