Trains.com

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

DT 402

1776 views
10 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    February 2008
  • From: Quebec Canada
  • 15 posts
DT 402
Posted by Dansome on Tuesday, October 27, 2015 4:59 PM

I am having a weird problem with my DT 402 throttle recently. While running an engine plugged into a UP5 panel the speed indicater on the throttle will click and the speed will drop to zero and the train will stop dead. I can turn up the throttle knob again and it will respond but in about 30 seconds the same thing will happen again. Does anyone have ant ideas as to what is going on with the DT 402?

Dan
  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Tuesday, October 27, 2015 5:04 PM

 You have the same loco selected on another throttle - maybe the second knob od the DT402, and it is set to 0 speed. What system do you have? Zephyr? It may be selected on the console throttle. Read the section in the manual about dispatching locos when you are done with them, and you won;t have this problem.

                     --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    February 2008
  • From: Quebec Canada
  • 15 posts
Posted by Dansome on Tuesday, October 27, 2015 5:08 PM

I'm using the 402 with a Zethyr. I'll give your suggestion a try.

Dan
  • Member since
    February 2008
  • From: Quebec Canada
  • 15 posts
Posted by Dansome on Tuesday, October 27, 2015 5:46 PM

Gave it a try and still have the same problem.even with just having the loco nomber selected but no speed input it "clicks" about every 30 seconds. I'm at a loss.

Dan
  • Member since
    July 2008
  • 1,206 posts
Posted by mfm37 on Tuesday, October 27, 2015 6:22 PM

You have the same address selected on the Zephyr. DT throttles will "slot follow" each other because they use encoders for speed control. DT throttles will not "slot follow" Zephyr and UT throttles.

Select the address on your Zephyr. Answer yes if the "Steal?' prompt comes up. Then dispatch it properly from the Zephyr. Now it should behave properly on your  DT402.

Martin Myers

  • Member since
    July 2006
  • From: Pittsburgh, PA
  • 1,796 posts
Posted by JoeinPA on Tuesday, October 27, 2015 6:24 PM

I had a similar problem with a DT400r. It turned out that one of the buttons was partially stuck in the pressed position. Once I carefully checked the throttle and found the culprit it was easy to unstick the button and the clicking stopped and the trotttle was working again.

Joe 

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Tuesday, October 27, 2015 10:35 PM

To displatch properly from the Zephyr - stop the loco, make sure the speed control is against the stop at 0 speed. Set the brake lever to the Brake position (middle). Make sure all functions are turned off. Press the Loco button, then press the Exit button.

Now select the loco on your DT402 and it should be fine.

                         --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    January 2011
  • 893 posts
Posted by PennCentral99 on Tuesday, October 27, 2015 11:49 PM

It won't hurt to purge the Zephyr, closing OpSw39 will purge the command station and restore to factory settings.

Inspired by Addiction

See more on my YouTube Channel

  • Member since
    August 2003
  • From: Collinwood, Ohio, USA
  • 16,367 posts
Posted by gmpullman on Wednesday, October 28, 2015 12:38 AM

Another good cause for using JMRI Decoder Pro — Monitor Slots:

http://jmri.org/help/en/package/jmri/jmrix/loconet/slotmon/SlotMonFrame.shtml

You can see which addresses are assigned to which throttles, instantly clear an address from the slot or completely clear all slots (this will wipe out any basic consists you have setup, though)

Decoder Pro is a powerful and handy tool for any DCC users...

Ed

  • Member since
    February 2007
  • From: Christiana, TN
  • 2,134 posts
Posted by CSX Robert on Wednesday, October 28, 2015 6:06 AM

You also need to make sure the loco is not selected on one of the jump throttles as well as the main Zephyr throttle.

  • Member since
    February 2008
  • From: Quebec Canada
  • 15 posts
Posted by Dansome on Wednesday, October 28, 2015 3:05 PM

rrinker

To displatch properly from the Zephyr - stop the loco, make sure the speed control is against the stop at 0 speed. Set the brake lever to the Brake position (middle). Make sure all functions are turned off. Press the Loco button, then press the Exit button.

Now select the loco on your DT402 and it should be fine.

                         --Randy

 Tryed Randy's suggestion and it worked. Thanks all.

 

Dan

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Users Online

There are no community member online

Search the Community

ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
Model Railroader Newsletter See all
Sign up for our FREE e-newsletter and get model railroad news in your inbox!