Reply to "Can ZW-L Terminal Outputs Be Combined?"

GregROGR Forum Member

@ADCX Rob posted:
But, can you power it with two channels of the ZW-L?

You can't even use one channel of a ZW-L to supply a Powermaster because it requires input from a sine-wave transformer. The instructions are very clear. Nonetheless, that didn't stop me from experimenting. A couple of strange things happen when you try this. First, a DC offset seems to get produced, causing horns to blow non-stop. Placing a non-polarized capacitor across the ZW-L terminals seems to fix this issue. Secondly, the fold-back protection of both the ZW-L and Powermaster when wired in series like this seem to interact in a bad way, causing an extreme increase in sensitivity which causes trains to grind to a halt with every momentary roller spark. I never found a way around that issue and gave up. It's just not meant to be used that way.

2/20/2110:16 PM

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