DZ-2500 Potential Problem

Z-Stuff For TrainsOGR Forum Member DIGITAL SUBSCRIBERFORUM SPONSOR

Hi All DZ-2500 Customers,

We have found that the non-derailing wiring for the DZ-2500 can lead to potential problems. It seems that a derailment on the area of the DZ-2500 connected for non-derailing can cause the DZ-2500 to permanently malfunction. When the switch machine is thrown, it immediately snaps back to the original position. This can be fixed by returning it to Z-Stuff to have the microprocessor replaced - very annoying. We have found that be adding diodes in-line with the GREEN and YELLOW wires, the failure is prevented. Just place a 1N4001 (or equiv.) between the isolated rail and the GRN wire and the same for the YEL wire. The end of the diode with the white stripe should be at the isolated rail end.

Sorry for the needed addition, but better safe than sorry.

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7/25/1711:39 AM

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CAPPilotOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Dennis,

Thank you for the update. Great customer service as always.

I'm in the process of wiring my new layout, so for me the timing was perfect.

7/25/1711:51 AM

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superwarp1OGR Forum Member

Good know, thanks.

7/25/172:05 PM

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AlanRailOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Amazon 100 pack 1N4001 1 Am 50V

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7/25/175:18 PM

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AlanRailOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Dennis

your diagram is confusing; why do you need the DZ-1008A for non-derailing feature.

dont you just connect the yellow and green wires to the isolated rails?

7/27/1711:35 PM

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elementdude195OGR Forum Member

Good to know I'll be picking up a pack of those diodes. What do I do if some my switches already present this issue where it just snaps back and they sit in a box now? I was just following the diagrams on the website when I had them first setup.

Thanks

7/28/1712:06 AM

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CAPPilotOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

AlanRail posted:
dont you just connect the yellow and green wires to the isolated rails?

That is correct. Dennis used a stock diagram that included the relay. Just ignore that hookup if you don't need the relay.

7/28/175:48 AM

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DZ-2500 Potential Problem

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100Pcs 1N4001 DO-41 50V 1A General Purpose Rectifier Diode Reverse Voltage 50V Forward Current 1A

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100Pcs 1N4001 DO-41 50V 1A General Purpose Rectifier Diode Reverse Voltage 50V Forward Current 1A

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