Re: Multi unit controls

David Johnson (trainman@ozemail.com.au)
Mon, 14 Jul 1997 14:34:37 -0700

Locos use four wires to determine the eight notches. One wire is the
enable wire. The other three select which solenoids are turned on a
small triangular plate on the governer. Different combinations of the
three corners allow 8 different combinations.
For example: (these are not actual settings)

Notch 1
o
o o

Notch 2
.
o o

Notch 3
o
. o

Notch 4
o
o .

Notch 5
.
. o

Notch 6
.
o .

Notch 7
o
. .

Notch 8
.
. .

-- 
David Johnson - Rail Services Authority
trainman@ozemail.com.au
trainman@railpage.org.au
http://www.ozemail.com.au/~trainman