Controlling DZ-2500C switch machines at a panel with a momentary push button and a red and green LED

The same problem is also with the controller that comes with the 2500, .Contact Roy at Royz Trains. He has made buffers for this problem and he also Carr's kits for this very problem. I've put them on 30 switches so far and they work great.

Thanks

Royz panel switch option looks too limiting. i need to place the leds and PB at specific locations that are closer than the $18 Royz switch provides.

So looking back at the 2016 post,how with the flickering opposing LEDS  could the poster say that IT WORKS??

i think what need is a current limiting circuit that only lets one led light if it has sufficient amps so if not it stays dark so only one led will light at a time.

unfortunately i am former structural engineer and have no idea how to design such as circuit.

This circuit appears to do it with the DZ-1008 relay.  This is from the Z-Stuff site.

Alan,

The circuit diagram you posted with the momentary toggle switch shows a connection on one side only.  The Yellow and Green wires from the switch machine are hidden by writing along side the led's.  Attached is a sketch that I used for DZ1000's and momentary toggle switch with led's.  Remember you are dealing with switch activation power of 12VAC.  You need a resistor for each led.  The green and yellow wires are considered the Red side of the AC power.  The black wire is considered the common.  I made a small test assembly on a 4" x 8" piece of thin plywood to test the operation prior to installation.  Hope this helps.  This diagram uses R Right and L left off the DZ-1000.

Bruce

I am using a DZ-2500 not a DZ-1000; so the wiring is different.

I did see the DZ applications but none apply to the DZ-2500C.

Is there a simple/cheap electrical circuit way to cut off power to the alternative LED until a higher voltage/amp is applied when the switch is thrown?

I have many these PB and LEDs  to attach to the panel.

That is where I ran into problems is when I put the 1008 relay on the 2500 machine. They chattered like crazy so I installed buffers which Roy Trains built for me. They took care of my chatter problem but not the problem with both leds being both lit. 

Without a schematic for the DZ-2500, it's going to be difficult to design a circuit for a generic pushbutton switch. The above schematic from Dennis is incomplete. Was there a conclusion from that original 2016 thread?

the 2016 conclusion was that it WORKED. the author used it on 30 switches on a panel.

it does control the switch machine but both leds are lit, one is always brighter than the other.

Well, I have a bunch of the DZ2500 switch machines on my new layout build, so I'll soon be looking into these issues.  I'm pretty confident that a simple solution to the LED problem is possible, but since I haven't actually wired one up and tinkered with it yet, I don't have a solution in-hand.  However, I am planning on having a panel with indicator lights, so I will be solving this puzzle at some point.

So using the anti derailing yellow and green lines for the LEDs, results in the appropriate one lighting the appropriate LED. But there is a bit of residual voltage on the other LED, dimly lighting it.

As GRJ suggested above, using a relay for the LEDs is a solution. Driven by either the yellow or green line. And you also could momentarily use those lines to trigger the change in the switch as shown by Bruce...or as shown by Dennis, pulse the white wire on the DZ-2500.

That’s a 17+ dollar fix. Maybe cheaper sensitive to trigger relays can be found on ebay.

gunrunnerjohn posted:

Well, I have a bunch of the DZ2500 switch machines on my new layout build, so I'll soon be looking into these issues.  I'm pretty confident that a simple solution to the LED problem is possible, but since I haven't actually wired one up and tinkered with it yet, I don't have a solution in-hand.  However, I am planning on having a panel with indicator lights, so I will be solving this puzzle at some point.

This topic kind of hit home.  I have about 16 switches using DZ-2500 machines.  When I asked Dennis Zanders about it, I was told it was normal and you relly can't do anything about it.  Well I see here that this may be addressed and a possible solution at hand.  I am anxious to see the findings.

FWIW, I just live with it.  It is kind of annoying when you explain the led's to guest visiting the layout.

I use the green and yellow for anti-derail.  Can't live without that feature.

Clearly, there is a solution, and I suspect it'll turn out to be somewhat simple.  I'll probably make a PCB when I figure it out.

Bryant Dunivan 111417 posted:

gunrunnerjohn posted:

Well, I have a bunch of the DZ2500 switch machines on my new layout build, so I'll soon be looking into these issues.  I'm pretty confident that a simple solution to the LED problem is possible, but since I haven't actually wired one up and tinkered with it yet, I don't have a solution in-hand.  However, I am planning on having a panel with indicator lights, so I will be solving this puzzle at some point.

This topic kind of hit home.  I have about 16 switches using DZ-2500 machines.  When I asked Dennis Zanders about it, I was told it was normal and you relly can't do anything about it.  Well I see here that this may be addressed and a possible solution at hand.  I am anxious to see the findings.

FWIW, I just live with it.  It is kind of annoying when you explain the led's to guest visiting the layout.

I use the green and yellow for anti-derail.  Can't live without that feature.

The yellow and green anti-derail lines can be used for the rail triggers and a momentary lever switch at the same time. The switch just mimics the anti-derail action of a wheel pulling the rail to common voltage. This would be my preferred home grown switch if not using the supplied DZ-2500 switch.

i use a three button controller to trigger the three-way turnout by grounding the anti-derail track stubs.