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Wiring Deltang Rx65b into Atlas F3 That Has 2 motors???
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 Posted: Thu May 25th, 2017 08:24 pm
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Bob D
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I'm getting ready to convert my Atlas O F-3 from 3-rail TMCC to 2-rail BPRC.  My brain is telling me to wire the 2 can motors in series:



What do you think, series or parallel?  I'm not sure what type can motors Atlas uses, but they can't draw any more current than the 2 that are in my Williams E7 and that's being run using the BlueRail 2amp board!!!

BobD



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 Posted: Thu May 25th, 2017 08:44 pm
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Helmut
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Wire the motors in parallel - they are 12V-types. The RX65 board is able to handle that current as it is rated 3A, with daughter board (A1 variant ) it handles 6A.



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 Posted: Thu May 25th, 2017 09:11 pm
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Bob D
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Thanks Helmut. I'm going to take the shell off the engine later to see if I can identify the motors.

So this is how to look at it:

Series is 1/2 voltage to each motor and 1 motor's current requirement. Parallel is same voltage to both motors and twice a motor's required current.

more later



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 Posted: Fri May 26th, 2017 01:06 am
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Bob D
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I took the shell off and the 2 motors are fairly small. I don't know but I bet they don't pull more than .75amps total. I didn't see any numbers, etc on either motor.

There's plenty of room for the 9.6v 2000Mah NiMh battery and the Rx65b. I want to mount the charging jack to the side of the fuel tank, there's a number of places on the bottom of the chassis to mount the on/off switch.



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 Posted: Sat May 27th, 2017 02:28 pm
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Bob D
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Thought I'd redo the schematic:


If I get time this weekend I'll start gutting the TMCC/ERR electronics and the center pickup rollers from the F3:




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 Posted: Sun May 28th, 2017 05:43 pm
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Bob D
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The F3 currently has 5 LEDs in the nose:
headlight
2 number boards
2 marker lamps

Headlight connection is no problem, but I can't figure out where to connect the 2 LEDs for the number boards. I'll probably leave the markers unlit (clear).

Any suggestions on which pads to use for the number boards? They would have to be turned on/off together.



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 Posted: Sun May 28th, 2017 08:07 pm
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Toeffelholm
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Hi Bob,
with your Rx65 you can illuminate your loco like a Christmas tree if you want.

I you want prevent programming, you can have a look a the instruction table, to see what pad is preprogrammed to which channel.

http://www.deltang.co.uk/rx65b-22-v611.htm

P5 for example is toggled on/off by ch5 (bind button).
What transmitter do you use?

Juergen




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 Posted: Sun May 28th, 2017 08:30 pm
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Bob D
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Thanks Juergen!

I'm using a Tx3 from RCS Australia.


So I guess I could use F2 or F4 to control the number boards and the markers if I wanted to turn them on/off.

Need to look at those instructions for the Rx again :2t:



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 Posted: Sun May 28th, 2017 08:42 pm
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Bob D
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Here's what I found on the RCTrains UK website, maybe use pads 3 and 4 IF F2 is Channel 2 and F4 is Channel 4:

Default settings for the pads on the RCT-Rx65b
  • Pad 1 - Front Light - Auto action, gives 3.5v when on, 0v when off - Can be connected to an LED with a suitable resistor
  • Pad 2 - Rear Light - Auto action, gives 3.5v when on, 0v when off - Can be connected to an LED with a suitable resistor
  • Pad 3On/Off  (Channel 2), Momentary action, 0v when channel is Low, 
  • Pad 4On/Off (Channel 4), Momentary action, 0v when channel is Low, 
  • Pad 5On/Off (Channel 5), Latching action, toggles from high to low when bind button is pressed - can be used to trigger soundcard effects such as the horn or whistle
  • Pad 6 On/Off (Channel 3), Momentary action, 3.5v when channel is Low
  • Pad 7On/Off (Channel 3), Momentary action, 3.5v when channel is High
  • Pad 8 - Servo (Channel 1), Standard servo output - can be used by soundcards to sense speed setting
  • Pad 9 - On/Off (Channel 3), Momentary action, 0v when channel is High - can be used to trigger soundcard effects using direction switch (Direction 1)
  • Pad 10 On/Off (Channel 3), Momentary action, 0v when channel is Low - can be used to trigger soundcard effects using direction switch (Direction 2)
  • Pad 11On/Off (Channel 3), Latching action, toggle when channel is High - can be used to turn on interior lighting etc using direction switch (Direction 1)
  • Pad 12  - On/Off (Channel 3), Latching action, toggle when channel is Low - can be used to turn on interior lighting etcs using direction switch (Direction 2)
  • Pad 13 - F1 output 'A', Front Light (auto), 0v when on disconnected when off - used to operate front light with LED (also mirrors the receiver LED when binding or when the receiver is searching for the transmitter)
  • Pad 14 - F2 output 'B', Rear Light (auto), 0v when on disconnected when off  - used to operate rear light with LED
  • Pad 15 - F3 output 'C', On/Off Momentary action (Channel 5), 0v (on) when channel is Low - often used for sounding the horn or the whistle on a soundcard when the bind button is pressed



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 Posted: Mon May 29th, 2017 05:04 am
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Toeffelholm
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No sorry Bob, that won't  work on pad 3 and 4 with your transmitter without programming.

The basic programming of Pad3 and 4 ist for momentary action.
That means that the state of the pad - voltage 3.5V or 0V - is only as long as the channel ist high or low. Your F2 and F4 are push buttons.  So if you push one of the buttons the dedicated LED would be off. But if you let go the button the LED is on again. 

With push buttons you need the "latching" option. That means you push the button, the dedicated pad changes its state and keeps there. You push the button again and the state changes back. So it is with pad 5 and ch 5.

Eventually you can use the pot on ch3 to control pad 6 and 7 for your lights, if you don't need it for direction choice. 

Basically, To use the full potential  of these sophisticated Rx's, you need to "learn" programming it. Then you can use any pad to your free choice.

Juergen 



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