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Reply to "DZ-2500 Power Supply"

Below is strictly about turn on and not derailment but may be of interest anyway.

I do not work with the DZ2500 but have done quite a bit with the DZ1000. The specs on this machine say 25 volts max. I blew up quite a few machines before I figured out the ACC post of a CW80 I was using spiked at 31 volts at turn on before settling down to 18 volts (it took a smart Navy tech and a big oscilloscope to figure this out). Dan actually tested two CW80's I had and both acted the same.

It would be a good idea to find out the max volt rating of the DZ2500 - should be in the paperwork that came with the machine. I would also ask John for a good solution to protect from voltage over-spiking. In my case I switched power to a handle on the transformer. The voltage is set to zero on turn on and raised to the proper voltage.

Side note - the DZ machines work fine at voltages as low as 12+ but I also have Atlas O switch machines plus their 200 relays. These require a higher voltage for proper functioning - about 18 volts.

Dennis sent me an email:
1. it is ok to power the DZ2500 with either AC or DC.  - 14-16V. 18V will over heat the machine
2. For DZ1000 - AC only - 14-16VAC - 18VAC will present long term problem

I am going to have to remove all the Atlas O switch machines. The 200 snap relays seem to work ok at 13VAC so I will keep them but these relays are no good if you want to connect non-derail to the DZ1000. They will keep 'buzzing' as the entire train consist goes over the isolated track and will over heat.

Last edited by Joe Fauty
OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
330-757-3020

www.ogaugerr.com
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