Autor Thema: IZNF, "I have a problem"  (Gelesen 5182 mal)

Offline Per Olsen

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Re:IZNF, "I have a problem"
« Antwort #15 am: 17. Februar 2013, 22:34:54 »
Hello.

Thank you.

No, I do have very clean wheels (LUX cleaning-wagon for rail, and cleaning-device in the track for cleaning wheels, in addition I have cleaned everything by hand).  So I have no problems with varying results, the results are always the same, but they are not the results I want/expect.

Thanks anyway !

Best regards,
Per.

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Offline Stefan Lersch

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Re:IZNF, "I have a problem"
« Antwort #16 am: 18. Februar 2013, 10:15:53 »
Hello Per,

I think Markus should have a look on this for I don't have any ideas anymore. But this could take a while because currently he is very busy.
Viele Grüße,
Stefan
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Offline Hwnel

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Re:IZNF, "I have a problem"
« Antwort #17 am: 19. Februar 2013, 02:15:30 »
Hello Per,

Just a thought, did you check the amount of power you are receiving at the station you calibrated from and the other stations?
Are they the same?  Do you have enough feeders to both red and brown in all stations?

It may be worth a shot.

Aloha,

Elliott
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Offline Markus Herzog

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Re:IZNF, "I have a problem"
« Antwort #18 am: 19. Februar 2013, 23:44:41 »
Hi guys,

beside the ideas of Stefan, Elliot and Adrian I don´t have much additional ideas at the moment.

Maybe Elliots idea might be a solution.

Another question from: How long is the distance from the real mid-position with the train first axle to the last feedback contact beginning before? Is there a significant difference between the good and the bad working tracks?

Regards
Markus
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Offline Per Olsen

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Re:IZNF, "I have a problem"
« Antwort #19 am: 21. Februar 2013, 21:57:08 »
Hello Markus, Elliot, Stefan and others  ;D

Conserning power: The entire layout is powered by 2x240VA trafos, devided into 6 circuits with seperate (identical) boosters.  All outputs are identical in power.  From each booster I use minimum 2,5mm(square) wires to all connecting-points for the tracks.  From each connecting-point there are short wires with 0,6mm (dia) to the C-tracks.  There are maximum 1m between each C-track that is fed with power.  Both "red" and "brown" are fed to each point.

Markus, about the distances:
The "good" track is total 316,8cm IZNF.  Devided into a total of 6 sections (wa originally designed for non-IZNF use..).  The "bad" track is total 278,5cm IZNF.  Devided into a total of 5 sections, with the second section with no feedback.
The distance from the start of feedback (if I understand you correctly) in the "bad" track is 79cm.  In the "good" track it is 59cm.

I did try to include more feedback-tracks (to get the longer total distance) but the result is the same.

Best regards,
Per.

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Offline Stefan Lersch

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Re:IZNF, "I have a problem"
« Antwort #20 am: 26. März 2013, 17:57:33 »
Hello Per,

Yesterday I had this problem, too. That was a new iZNF consisting only of two feedback contacts. Only one loco drove too far all other were fine. I started once again the speed measurement of this loco and found out that the maximum speed of this loco was 160 km/h after the first meassurement and now 250! No wonder the train went too far! Because the iZNF only exists of two contacts and the last one is very long WDP had no chance to interact. At all other iZNFs there are more contacts. Every time the loco reaches a new contact WDP recalculates the remaining way and reduces the speed much faster so the loco stops there more or less correctly. After the second speed measurement the loco stops fine at every iZNF!

Maybe you have the same problem.
Viele Grüße,
Stefan
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Offline Per Olsen

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Re:IZNF, "I have a problem"
« Antwort #21 am: 28. März 2013, 08:02:23 »
Hello again.

Thanks for info.

Please read my last mail (again).  I did write, quote:
"The "good" track is total 316,8cm IZNF.  Devided into a total of 6 sections (was originally designed for non-IZNF use..).  The "bad" track is total 278,5cm IZNF.  Devided into a total of 5 sections, with the second section with no feedback."
unquote.

I have re-calibrated every loco several times, this is not the problem.

I have more-or-less given this up, and unwillingly accepted that this does not work as I expected/wanted.  If it works with everybody else, it must be a problem here, but I cannot find it.  So I am mostly using the non-IZNF way (as before) or IZNF with "Stop at signal", which works quite well.

Happy Easter (I am on holidays at my mother-in-laws place with my wife and 2 dogs).

Best regards,
Per.



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Offline luc diels

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Re:IZNF, "I have a problem"
« Antwort #22 am: 28. März 2013, 21:28:14 »
Per,

I had the same problem when calibrating all my locs. At the end I found out that one of the isolators of the calibration track was one rail further then I had used in WDP, so one distance was too long, the other too short. So WDP was mislead for the calibration of the brakecorrection. So I could calibrate all the trains on the calibration track correctly but at other tracks the trains stopped too far. When I installed the isolation correctly the problem was gone.
So please check if your track isolations are correct.

Hope this can help

Luc
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