Zone one
Zone two
Perimeter
Switches > 5 feet
(1.5 m) from
perimeter
Width must be greater than 5.5
feet (1.7 m), measured from
perimeter wire to perimeter wire
3 feet
(0.9 m)
wide
Distance greater
than 4 feet (1.2 m)
Figure 1.8
Narrow passes should
be at least 5.5 feet
(1.7 m) between wires
Closer than 4 feet (1.2 m) to
perimeter wire, loop out
Trees large enough to allow
Robomower to bump into do
not require a perimeter wire
around it
Small tree, must
exclude with
perimeter wire
Tree too close to
perimeter, less than 4
feet (1.2m), loop out
with perimeter wire
Minimum distance
between obstacle
wire and perimeter
wire = 5 feet (1.5 m)
Greater than 5 feet
(1.5 m)
The Robomower can freely move across this section, but will still
recognize the perimeter island. By allowing this, multiple
obstacles in a given lawn will have little effect on free movement of
the Robomower or its’ efficiency.
Large trees, OK to be treated as an
obstacle and not excluded with the
perimeter wire. Be sure they are at
least 4 feet (1.2m) from the perimeter.
Figure 1.7
Chapter 1
Page 12
