Skip to main content

This is a reprint of an email I sent to D. Zander at Z-Stuff. I figure I would post it on the forum too to get some advice.

I connected my first Ross turnout with DZ-1000 switch machines and ran into trouble so have some questions for you. Attached is the wiring scheme. The power supply is the right tap on an MTH Z-4000 transformer. I have only connected power (no non derail or other functions as yet). I am using SPDT momentary toggle switches in place of the DZ-1002 control switches.
My issues are:
1. two switch machines work and one does not (may be my fault - bad toggle switch may have blown the switch machine).
2. the two that work are acting funny - when in R position there is voltage (same level as power supply) on both the R and L terminals on the switch machine. When in L position there is no voltage on the two terminals. I didn't think there should be any voltage since both terminals are connected to ground through the SPDT's.

Questions:
- Is #2 normal or do I have a connection problem?
- is it ok to use the SPDT momentary switches or do I need the DZ-1002 controls? I do realize the LED lights won't display (I will be using your dwarf signals for this function). Incidentally the act of probing with the voltmeter I can make the lights turn on momentarily.
- Is there a way of testing the one switch machine that does not work? I get power to the AC terminal but nothing when probing R and L terminals.

Thanks
Joe

Attachments

Original Post

Replies sorted oldest to newest

No problem using SPDT center off momentary contact switches.  I had them all over.

 

There are diodes inside the Z1000 switch machine.  This may account for the readings you're getting.  There is also a tiny microswitch inside, which may have failed.  I don't see how a toggle switch could burn out a Z1000, since they internally disconnect after the switchg is thrown.  Zander uses an electric motor to throw the switch; it's an ingenious design inside.

 

To test a machine, apply hot to the center terminal of the motor, and touch ground to each of the outside terminals in turn.  Use about 12-14 volts.  If it doesn't work, throw the motor by hand using the little prong in the arc atop the motor, and then try again.

southernrr - thanks for info. I can use it.

RJR - your advice on testing the motor was almost word for word what I got from Dennis Zander! Excellent!

WRT Mr. Zander

As RR said SPDT toggle switches are fine.

Testing the motor is as RR said - the one is truly burned out.

For item 2 on my list as long as the motor switches I am ok. Deniss did not explain the voltage - just said it was ok.

While I am at it my compliments to Dennis Zander. He has never failed to answer my emails very fast.

 

I am buying some more SPDT momentary switches to replace the one I don't like plus a couple of SPDTs I discovered were not momentary. Once these are installed on the control panel I will replace the dead DZ-1000 with a spare I tested and see how things go.

I agree with you regarding Dennis Zander of Z-Stuff.  He stands behind his product and is always willing to discuss issues.

 

The 40+ switches on my layout were about half NJ INternational switch motors and half Z1000, all controlled by toggles.  The NJI machines need heavy wire as they draw a lot of current, the Z1000 can use fine wire as their draw is small.  I started adding signal lights at the toggles, and then decided it would be easier to use the Z controllers and replace key NJI motors with Z1000.  Submini toggles are fine for the Z1000, if you elect not to use the Z-stuff controllers.

RJR:

Because the toggle switches don't keep the switch LED lights on I am going to add dwarf signals at the turnouts using the DZ-1008 relay. I hooked up one the other night and the circuit works just fine.

I also found out something else. You are correct about there being diodes inside the DZ-1000 motors. I had diodes connected in series with all toggle switches when I was running Atlas O switch machines. For Atlas O the toggles are connected to the power line. The diodes cut the waveform in half (AC to DC) to help keep the coils in the switch machine from burning out. I never took them out for the connections to the DZ-1000. Denis said they need to go since there are diodes inside the motor and the extra ones could mess up operation.

Add Reply

Post

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
Link copied to your clipboard.
×
×