Karst
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Thanks for this advice I'll upgrade my PSU.
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Before reading your post I'd actually come to a similar conclusion that it was a power supply issue. I was originally powering two YD8116s together with the three YD8008 from the 12 volt power supply. I moved one of YD8116s (which was controlling relays) to another supply and everything worked as it should do with no missed turnout switching. I was even able to reduce the pulse times down to the defaults of 30ms.
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Regards
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Graham
