Husqvarna Automower 305 - The Loop Systems Control Signals; The Loop Systems Status

Englsih - 8
1�6 The loop system’s control
signals
The loop system consists of a boundary wire and
a guide cable connected to the charging station.
Together they essentially comprise three different
signals:
• A-signal
• F-signal
• Guide-signal
To check the A-, F- and Guide-signals, see Loop
(5-1-3).
• A-signal
The signal that the charging station transmits
over the loop and which demarcates the
working area for the Automower® 305.
Coded information is transmitted via the
A-signal to the mower.
• When there is no A-signal, for example if
there is a break in the boundary wire or in
the power supply to the charging station,
the Automower® 305 stops and displays the
message “No loop signal”.
• F-signal
Remote signal from the charging station
which has a range of 2-3 metres. The signal
is generated by the large coil in the charging
station plate. The F-signal is used so that
the mower knows that it in the vicinity of the
charging station.
If there is no F-signal, the Automower®
cannot nd the charging station. The mower
will eventually stop and display the message
“Low battery voltage”.
• Guide-signal
The signal that the charging station transmits
through the guide cable. The guide-signals
lead the mower to the charging station,
but can also be used to direct the mower
to a remote area. Guide is marked as the
connection on the rear of the charging
station.
If there is no Guide-signal, the Automower®
is not able to follow the guide cable and
therefore not able to nd the charging station
either. The mower will eventually stop and
display the message “Low battery voltage”.
1�7 The loop system’s status
The loop system’s status is most easily checked
using the LED in the charging station. Check the loop
signal by inspecting the LED indicators.
• Continuous green light = All signals are OK.
• Blue ashing light = No signal in the
boundary wire (A-signal). Most likely a break
in the boundary wire.
• Yellow ashing light = No signal in the guide
wire. Most likely a break in the guide wire.
• Red ashing light = No F-signal. Most likely
interruption in the charging station’s antenna
plate
• Continuous blue light = Weak signal in the
boundary wire (A-signal). This may depend
on the boundary wire being over 250 m in
length or that the wire is damaged. If the
mower still works, this is not a problem.
• Continuous red light = fault in a circuit board
in the charging station.
1� FUNCTION
A
F
Guide
3020-003
3012-998