Englsih - 10
1�9 Guide wire
The guide cable, together with the part of the boundary
wire that comprises the return to the charging station,
is called the guide wire. The current in the guide wire
always goes from the guide cable to the left in the
connection between guide cable and boundary wire.
The strength of the guide signal varies like the
A-signal depending on the distance to the guide
wire. Inside the guide wire the signal is positive and
the strength subsequently diminishes the farther
from away the cable you get. Outside the guide wire
the signal is negative and the strength of the signal
diminishes more rapidly. The area inside the guide
wire is designated the guide area. Automower® 305
always tracks the left side of the guide cable in the
direction towards the charging station, i.e. the mower
follows the negative values on the guide signal.
The strength of the signal in the guide wire depends
on the loop’s length. The guide wire must therefore
not be longer than approx. 250 metres.
The longer the guide wire, the lower the strength of
the signal and the more difcult it is for Automower®
305 to track the guide cable. If the strength of the
signal is too low, the Automower® 305 can, at an outer
edge for example, stop following the guide cable.
The strength of the guide signal also varies along
the guide loop depending on the proximity to other
parts of the guide wire and is affected by islands,
headlands, passages and corners.
To reduce the risk of the mower losing contact with
the cable in corners, it is recommended that the
cable is not laid in 90 degree angles. It is better to lay
the cable in 2 x 135 degree angles.
1�10 Guide width
Guide width is a measure of how far from the guide
cable the mower is allowed to travel when it is following
it to and from the charging station. The area beside the
wire which the mower then uses is called the corridor.
There are three possible settings for guide width:
Table 3: Guide width
Guide width
The mower’s distance
from the guide cable
Narrow 0 cm
Medium 0 + 30-50 cm
Wide 0 + 30-100 cm
With a Wide guide width the Automower® 305 mows
at various distances to the guide cable at different
charging cycles. A garden that is open and free of
narrow passages should have a wide corridor to
minimise the risk of tracks forming.
With a Medium guide width the Automower® 305
mows at various distances to the guide wire at
different charging cycles, but not as far away from
the guide wire as is the case when Wide is selected.
The medium corridor setting should be selected for a
garden with obstacles close to the guide cable and/or
passages that do not allow for a wide corridor.
With a Narrow guide width, Automower® 305 runs
straight over the guide cable. Narrow is not normally
recommended, but in a garden with one or a number
of narrow passages, a narrow corridor may be the
only option. The narrow corridor setting increases
the risk of tracks forming along the guide wire. With
this setting the mower can traverse passages down
to 100 cm if the passage is bounded by trenches, or
120 cm if the passage is bounded by walls.
The Automower® 305 has a default setting of
Medium guide width. In general as wide a corridor as
possible should be used. Besides the fact that there
is less risk of tracks forming, it is then also easier for
1� FUNCTION
3012-949
3012-993
135º
135º
90º
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