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Johngraham

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  1. Johngraham
    Yes, I’ve not had much success with the manual - can’t seem to find an answer that’s why I posted but thank you
  2. Johngraham
    Also I was wondering is there a 5 V output on the loksound version V4 decoders - I am using the type with the eight pin plug which I believed is based on the plux 22 zimo offer this output
  3. Johngraham started following Zimo function output to control fan motor and fan colour
  4. Johngraham
    Hello, just wondering if anybody had any ideas about class 40 roof radiator fan colour in the early 60s - thanking you in advance
  5. Johngraham
    Brilliant - (Zimo MS440 decoder) using the 5V output as your suggestion but with a normal full powered FO = much more flexibility in setting the speed of the motor. Starting and running perfect for my requirements, (it appears to be a 200 mA output after all - but that is unconfirmed) - I see the confusion in the manual - motor actually draws 50 mA in any case. I am using a 100 µF capacitor in parallel with the motor, the smoothing appears to give more flexibility with the speed control (CV192) - going to see how many models I can convert. Did not have much success with the MOSFET - (I really do like the idea) but will carry on experimenting Thank you once again Nigel really appreciate your help Graham
  6. Johngraham
    I will experiment over the next few days and report back. Cheers again Graham
  7. Johngraham
    Hi Nigel, thanks for that I have been through a few of the function settings/dimming but wasn’t sure if there was a setting specifically for motor control I’d missed - I did try a low value capacitor in parallel with the motor and it certainly seems to stop the hum. I can try a mosfet as I’m familiar with using them with ESU decoders (will that work?) also wasn’t sure about using the 5v output from the decoder as an option? I read up in the manual, but I couldn’t quite get my head around it and obviously do not want to damage the chip i’m using 6 of the full function outputs for the lighting so if I switch CV8 to 3 will I lose all the other full outputs? appreciate your help
  8. Johngraham
    Hi, I was wondering if anyone can advise a way to set up a functional output on a Zimo MS440 decoder to suitably control a fan motor driving a radiator fan on diesel loco i’m having difficulty getting the motor to run smoothly and start consistently at sufficiently low speed many thanks, Graham
  9. Johngraham started following pauliebanger
  10. Johngraham

    Hi Paul, I was wondering if you could help me - I would like to fit stay alive capacitors to the latest Bachmann Zimo 6 pin decoder (in Bachmann oo 03 of shunter)  

    36–568A but can’t find any information on this particular version

    it appears to have been updated and the solder pads do not correspond with what is on the Zimo website

    not sure if the extra pad at the bottom is for stay alive - would I need to put a resistor in series with a capacitor?

    any help on how to proceed would be greatly appreciated

    thanking you in advance Graham H

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    1. Show previous comments  1 more
    2. Johngraham

      Johngraham

      Hi Paul, thanks for the quick reply. CV250 is reading a value of 192.
       

      It’s actually coming up as a Zimo Elektronik (145) on my ECoS

    3. pauliebanger

      pauliebanger

      CV250=292 makes this a ZIMO MX622N. (Rebranded as Bachmann).

      That being so, in the orientation of your second photo, the top right pad is negative and bottom left, (OR alternatively the 4th down from the negative)  are both positive pads.

      For small capacitance say 220uF a 33 ohms resistor should be in the positive lead to guard against inrush current. 

      For larger capacitances, a diode and choke resistor will also be required.

       

      Paul 

    4. Johngraham

      Johngraham

      Thanks Paul, I was really stuck

      I didn’t want to guess, obviously regards damaging the decoder. You probably don’t remember but you’ve helped me in the past - a few years ago with the class 24 (still the best loco / sound and project in my opinion)

      thank you once again genuinely appreciated it

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