Overvoltage

What would cause an overvoltage warning on my D180 and not on the VP100?

I had my first engine start recently and when i turned on the 1U switch for my Alt, the D180 gave me the warning and showed 19.6? I have a Planepower 70 amp alt with a LR-3C regulator.

Thanks


Don

Disregard....

Found it.

Just double checked my wiring....ground was left off the F2 terminal on the Alt.

Such a dumb butt sometimes!