Occupancy sensor

[Tdubya90]

Can anyone explain to me why it says to terminate the ground wire on the common screw? Seems weird.

Was gonna post a picture but there doesn't seem to be a way.

It's for a 3 way occupancy sensor eaton os306u

 

[LarryFine]

Can anyone explain to me why it says to terminate the ground wire on the common screw?

Well, don't do that!

Was gonna post a picture but there doesn't seem to be a way.

Where is the pic now?

It's for a 3 way occupancy sensor eaton os306u

I see: "d. The sensor green wire will connect to the ground wire in the wallbox."

PDF: https://www.eaton.com/content/dam/e...nsors/os306u-and-vs306u-instruction-sheet.pdf

 

[LarryFine]

I found it: "b. Connect the bare ground wire in the wallbox to the common terminal (usually a black screw or a marking such as COM or COMMON near the terminal) on the 3-way switch."

It doesn't compute, but that's under one specific switching situation, I'll have to look more to make sure it isn't an error.