Page 4 of 4 FirstFirst 1234
Results 61 to 68 of 68

Thread: MRC Tech II controller mods: Adding panel meters

  1. #61
    Join Date
    Oct 2008
    Location
    Everywhere yet Nowhere
    Posts
    2,048
    Thanks
    2,213
    Thanked 1,963 Times in 753 Posts
    Mentioned
    25 Post(s)
    Tagged
    0 Thread(s)

    Default

    @Metrolink Where is the yellow wire (coming from the momentum switch going to the board) connected on the board?

    YWH-2.jpg

  2. #62
    Join Date
    May 2016
    Posts
    1,606
    Thanks
    780
    Thanked 2,461 Times in 713 Posts
    Mentioned
    68 Post(s)
    Tagged
    0 Thread(s)

    Default

    @DrifterNL -- One thought -- can @Metrolink just move the direction switch to be the last thing in the circuit (after momentum etc...)? This would let him connect the sensor after momentum but before direction switch / polarity issues. it is just a switch so should be easy enough to bypass it where it is and then reconnect it later in the circuit.

    Never supposed to throw direction switch without turning down power so should not be a problem if it was incorporated later in the circuit (anyway changing polarity at full throttle would be just as much of or more of an issue than changing polarity as momentum ramps up or down or something).

    I don't have momentum in my 55's so I can just connect prior to the direction switch -- guess I will need to open them up.
    Last edited by Mac; 3rd Sep 2016 at 07:52 PM.

  3. #63
    Join Date
    Oct 2008
    Location
    Everywhere yet Nowhere
    Posts
    2,048
    Thanks
    2,213
    Thanked 1,963 Times in 753 Posts
    Mentioned
    25 Post(s)
    Tagged
    0 Thread(s)

    Default

    @Metrolink
    Another question:
    Are the diodes connected and oriented (white stripe) on the board like the picture below?

    FBR-2.jpg

  4. #64
    Join Date
    Jun 2016
    Location
    Los Angeles, CA
    Posts
    1,756
    Blog Entries
    3
    Thanks
    2,183
    Thanked 1,411 Times in 648 Posts
    Mentioned
    69 Post(s)
    Tagged
    1 Thread(s)

    Default

    Quote Originally Posted by DrifterNL View Post
    Where is the yellow wire (coming from the momentum switch going to the board) connected on the board?
    Yes! The yellow wire from the momentum switch connects where your yellow arrow is pointed.

    Quote Originally Posted by DrifterNL View Post
    Are the diodes connected and oriented (white stripe) on the board like the picture below?
    Yes, correct again! As your drawing indicates. Dang, you're good!

    I see how the PCB is attached now. I don't have the tool to detach it easily. I'll try to get it off tomorrow, and post a photo of the top side of the circuit board for you.

    Southern Pacific | Santa Fe | SPSF | BNSF | Metrolink | CalTrain | Chicago Metra | TGV Lyria

    railways by Kato Unitrack + Unitram | electric light-rail by Tomix | construction by Kato Diotown & Tomytec Co., Ltd. | vehicles by Busch GmbH & Co. KG
    ambient sound design by Fantasonics | digital command control by Dynamis Ultima | layout automation by RailController

  5. #65
    Join Date
    Oct 2008
    Location
    Everywhere yet Nowhere
    Posts
    2,048
    Thanks
    2,213
    Thanked 1,963 Times in 753 Posts
    Mentioned
    25 Post(s)
    Tagged
    0 Thread(s)

    Default

    @Metrolink

    OK, from the info I found (and if I'm correct) it looks like you can connect the panel meter as shown in the picture below with one exception:

    3000GSopenVAconnection-2.jpg

    3 pole connector:
    Red wire -> connect as indicated.
    Black wire -> connect as indicated.
    Blue (or yellow) wire -> de-solder the green wire coming from the direction switch going to the PCB on the PCB side and solder the green wire to the blue (or yellow) wire and insulate.

    2 pole connector:
    Red wire -> Don't connect as indicated* but connect to the + of a 9V battery.
    Black wire -> connect to the - of the 9V battery.
    * I'm doing this because I don't trust that 50VDC you measured.

    Connect everything up and test:
    Magic blue smoke -> indicates that something went horribly wrong.

  6. The Following User Says Thank You to DrifterNL For This Useful Post:


  7. #66
    Join Date
    Jun 2016
    Location
    Los Angeles, CA
    Posts
    1,756
    Blog Entries
    3
    Thanks
    2,183
    Thanked 1,411 Times in 648 Posts
    Mentioned
    69 Post(s)
    Tagged
    1 Thread(s)

    Default

    Awesome! Thanks a lot man! I swear, I don't know why my meter read such high voltages? I checked the scale settings like four times. At the 15VDC scale, it immediately pegged the meter. The next scale up is 150VDC, and that's the readings I got.

    Southern Pacific | Santa Fe | SPSF | BNSF | Metrolink | CalTrain | Chicago Metra | TGV Lyria

    railways by Kato Unitrack + Unitram | electric light-rail by Tomix | construction by Kato Diotown & Tomytec Co., Ltd. | vehicles by Busch GmbH & Co. KG
    ambient sound design by Fantasonics | digital command control by Dynamis Ultima | layout automation by RailController

  8. #67
    Join Date
    May 2016
    Posts
    1,606
    Thanks
    780
    Thanked 2,461 Times in 713 Posts
    Mentioned
    68 Post(s)
    Tagged
    0 Thread(s)

    Default

    Hope this project is going well -- my semester started so have not had time to work on the layout or anything. I did come across an interesting MRC controller that has built in meters. Search on "mrc tech3 9500" (I see lots of Tech II and Tech 4s but had not seen any Tech 3s). Posting this as more of a curiosity since both you and I have committed and purchased multiple count of another transformer / controller.

  9. #68
    Join Date
    Jun 2016
    Location
    Los Angeles, CA
    Posts
    1,756
    Blog Entries
    3
    Thanks
    2,183
    Thanked 1,411 Times in 648 Posts
    Mentioned
    69 Post(s)
    Tagged
    1 Thread(s)

    Default

    Yes, I've seen those, thanks! I think that may be the one that puts out too much power for N-scale.

    Southern Pacific | Santa Fe | SPSF | BNSF | Metrolink | CalTrain | Chicago Metra | TGV Lyria

    railways by Kato Unitrack + Unitram | electric light-rail by Tomix | construction by Kato Diotown & Tomytec Co., Ltd. | vehicles by Busch GmbH & Co. KG
    ambient sound design by Fantasonics | digital command control by Dynamis Ultima | layout automation by RailController

Similar Threads

  1. Control Panel and DCC Panel
    By fortkentdad in forum DCC
    Replies: 3
    Last Post: 11th Jan 2015, 10:43 AM
  2. MRC Tech 6
    By citynut in forum DC Controllers
    Replies: 2
    Last Post: 27th Feb 2013, 02:40 PM
  3. Amp Meters and Volt Meters
    By choens in forum DCC
    Replies: 5
    Last Post: 7th Feb 2013, 02:09 PM
  4. Hi-Tech Details Announcement: Parking Meters
    By DrifterNL in forum Product & Service Announcements
    Replies: 5
    Last Post: 4th Jan 2013, 07:41 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •