I can see digital logic in the use of the switches.

Run if this light is on but when this other lights - shut down....

I'd consider a machine motor off and a all off.

The idea is to have a scram button that is 'all off'. Then Gunner
walks up to troubleshoot and he turns off the motor switches and
enables power. The lights will show. The 'lights' might be relays
that drive lights or fans or pumps...

Martin

Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
"Our Republic and the Press will Rise or Fall Together": Joseph Pulitzer
TSRA: Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal.
NRA Second Amendment Task Force Originator & Charter Founder
IHMSA and NRA Metallic Silhouette maker & member. http://lufkinced.com/

On 7/15/2010 3:57 PM, Ignoramus12838 wrote:
My mill has a few switches, such as low lubricating oil level and
motor overheat switches, all NC.

I wanted to ask what is the standard way of wiring this stuff. Just
all in big series with E-stop switches? Or separately as separate
inputs so that I would know what the problem is?

i