Husqvarna 420 Operator's Manual page 58

Find charging station
The robotic lawnmower can be set to search for the
charging station in one or more of the following three
ways: Guide, Boundary Wire and Charging Station. The
factory settings are that these three search options are
automatically combined to find the charging station as
quickly as possible but also with a minimum risk of tracks
forming.
In very complex yards e.g. with many areas joined by
narrow passages, the amount of time required to find the
charging station is decreased by carrying out a number of
the manual setting outlined below.
The robotic lawnmower always starts the search for the
charging station using an irregular search method.
When the robotic lawnmower still cannot find the charging
station after a specific period of irregular searching, it also
starts to search for the guide wires and after a further
period also the boundary wire to follow one of them into
the charging station instead. This time is specified in
minutes and is known as delay time.
Example:
4 minute delay for Guide 1 and Guide 2 and 11 minutes
for the boundary wire. The robotic lawnmower then
searches irregularly for 4 minutes and then also
searches for the guide wires for 7 minutes. If it has
not found a guide wire after this period, the robotic
lawnmower now also searches for the boundary loop.
It is possible of course to specify the same delay time
for both the guide wires and boundary wire, for instance
5 minutes. The robotic lawnmower then searches
irregularly for 5 minutes and when it does not find the
charging station, it continues to search either by following
the guide wires or the boundary wire, depending on which
one it reaches first.
In general a long delay time decreases the risk of tracks
forming (the robotic lawnmower will find the charging
station more often through irregular searches) but gives
longer search times. A short delay time gives the opposite
effect, i.e. short search times with increased risk of tracks
forming along the guide wires and/or boundary wires.
It is also possible to test that the robotic lawnmower
can follow the guide wires and the boundary wire to the
charging station and dock with it without a problem.
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MENU FUNCTIONS
=Delay =Fördröjningstid
=Sökning
=Search
Begränsningsslinga Boundary wire
Guide 2
Guide 2
Guide 1 Guide 1
Random
Slumpmässigt
4 min 4 min 11 min 11 min
3012-1441
3012-1089
2016-03-14 16:59:25