I posted a few weeks ago about the lack of speed from my PK E 7, at the time it top speed was around 67 MPH from the speed read out. Last week it real started having problems. I think it had something to do with accidentally in-gauging the shut down mode. Engine revved, lights where on and at 100 % power it would creep just a little. Then it started moving but top speed was down to 34 MPH?
Today I tried to resit to default by changing CV 49 to 129, CV 50 to 1, well I had verbal readout from the engine that the CV changed, and the address was sat at 3. Ran it again and top speed was still around 40 MPH max with no train attached.
All so sat the sound to be off when I hit F 8. Engine did not have any odd sounds like it needs to be oiled.
Saturday I will pull the shell and the weight that covers the motor and check out the motor, trucks and drive shafts.
Engine is acting like it is in switching mode like Digitrax uses. Far as I have read so far QSI does not have that function unless I have missed it.
I do have decoder pro to read the CV’s and run a Digitrax SEB for the DCC system.
You didn’t accidently flip the switch on the front of the DB150 to the N scale setting, did you? That cuts track voltage by about 3 volts from the HO setting. Do NOT use the O scale setting with HO locos as a tricky way to get more speed.
Randy I all ready checked to make sure I did not do that. Other engines are still running at correct speeds as well.
Tom, CV 56 just might be the ticket! In my booklet there is two section about resetting to default. One I looked at said CV 56 sets your Short Address. So dumb old me did not reset that CV. I all so missed where it said there would be a verbal responses that the decoder was reset.
Randy, on a side note, when I read the CV’s I did find my top end CV was sat at 240, not 255 which I think is the max value. So if I get the current mess straighten out, I might get her to run a little faster.
Yes, if CV5 is set for less than 255, that will drop your top speed. quite a bit. Check the manual, you cna either set it to the max or set it to the default which might be 0, which doesn;t mean it stops at the max speed step, it means there is no alteration of the speed that it reaches.
Yeah, QSI. Implementation of speed curves, momentum, etc is a completely different ball of wax than the Tsunami’s and NCEs I usually use. I got all twisted up, reset to factory specs, then spent some quality time with the manual. I can’t even say what it was I did, except that it involved more than 2 or 3 CVs. They do run sweet now, so worth the effort.
There’s no reason to go nuts with adjusting all these complex CVs,. QSI fully implements CV2, 5, and 6 for low, top, and mod speed settings. That’s all you should EVER have to adjust. No speed curves. This concept that the two locos have to be perfectly lockstep at every speed step or one will burn up, or they won’t pull is utter malarky.
With decent BEMF decoders I usually don’t even have to touch CV2 anymore, a good BEM<F decoder will creep on speed step 1 without any additional adjustments. And for those who sya you cna’t possibly MU two locos together if they both have BEMF are invited to stop by at the next club show I’m at and run mine, which will be on display and running several hours per day with no ill effects. That will be July3-8 at the RR Museum of PA. Those of my locos without sound have TCS automatic BEMF decoders in them and they do not buck and fight one another unless one actually loses power, which usually means it’s time for the track clenaign train to run and for me to clean my wheels.
I wouldn;t considr trying to set speed tables, or mess with complex sound settings other than somethign like the volume without JMRI. It’s too easy to mess up somewhere with 30 CVs (28 steps plus forward and reverse trim) trying to kee it all in order selecting each CV one at a time, JMRI makes it easy. Currently NONE of my locos has a speed table in effect, I can get desired running with just 2, 5, and 6. Sometimes a little momentum with CV 3 and 4. Simple, and it works. I may have to change that one one loco, since I’ve been informed I’m an idiot, and a Tsunami will provide the desired loading sounds if I only use a speed table, so Iguess I need to at least try it, if only to get away from the annoying loco moves before the engine revs sound effects.