Honda HRM300 Manual page 195

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INSTALLATION
2. The distance between the lawnmower and boundary wire when the lawnmower traces the boundary wire (=passage
width)
The lawnmower detects the magnetic field from the boundary wire, and moves between the boundary wire and the specified value
(See below) at random as it goes toward the mowing start point ("passage width (out)" setting/page 3-30) or returns to the docking
station ("passage return width" setting/page 3-55).
The field strength varies depending on the length of the boundary wire.
The field becomes weaker with a longer boundary wire, and stronger with a shorter boundary wire.
With the same passage width value, passage width will vary with boundary wire length.
Passage Width Out must always remain above or equal to Passage Return Width.
The below diagram shows the measuring results of the passage width in each area size at setup level (reference data).
The results are measured under the specific area and it will be affected by the area shape and wire length.
e.g. 300mBOUNDARY WIRE
40m
A
110m
A = PASSAGE WIDTH
Wire length (m) 500
10 55
09 50
08 45
07 40
06 35
05 35
04 25
03 25
02 25
01 25
0 0
B
About Forbidden range :
Station signal range
Passage width is inside of the
receivable range of the station
signal.
BOUNDARY WIRE
3-10
LARGE AREA
MOWING ZONE
PASSAGE
WIDTH:
NARROW
PASSAGE WIDTH ( cm)
300 200
65 -
60 80
55 75
50 60
45 55
40 50
35 45
30 40
25 35
25 25
0 0
B = Forbidden range
BOUNDARY WIRE
Setting level 10:
The lawnmower moves at random by the maximum
50
amount possible between the boundary wire and the
-
edge of the magnetic field. By avoiding moving
B
-
along the same
-
path, you can avoid creating wheel tracks in the
-
grass.
-
-
80
Setting level 1:
65
The lawnmower closely follows the boundary wire. This
is effective for narrow pathways.
50
40
Setting level 0:
0
The lawnmower runs on the boundary wire.
If the passage width is too wide
B = Forbidden range
(above 80cm), the lawnmower
cannot detect the station signal (=
The mower cannot return to the
docking station).
A: Station signal range depends on
the SENSITIVITY of the lawnmower
A
(page 3-9).
High: 95cm
Middle: 70cm
Low: 60cm
SMALL AREA
PASSAGE
WIDTH:
WIDE