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3• SETTING UP THE PERIPHERAL WIRE: ISLANDS
ALWAYS LIMIT THE CREATION OF
ISLANDS.
3•1 WHEN TO CREATE AN ISLAND?
- When the part to isolate is found near a flowerbed or a boundary
and there is no physical barrier (e.g. a flowerbed in the middle
of the garden).
Boundary
Cross-section view
- When tree roots flush with the surface.
3•2 ALTERNATIVE SOLUTION TO
CREATING AN ISLAND?
Create a physical boundary (edge, pickets) in such a way that the
ETM105 sonar detects them (minimum 50 cm high).
Ø 10 cm minimum
Certain boundaries do not need protection (trees ...).
FOR SWIMMING POOLS, LAKES, PONDS, ETC.
(CRITICAL AREAS)
You must set up a boundary wire AND protect the water feature by
a physical boundary. When the station power is cut, the machine
continues 1 meter (1 second) before stopping and therefore you
must set up a physical boundary near a critical area.
Stay at least 2 m from any water points. Ideally a physical barrier
should be erected. If the water point is on a downward slope, you
must provide physical obstacles.
ETESIA decline all responsibility if the robot falls into the water.
3•3 DISTANCES REGARDING THE
PERIPHERAL WIRE
Case 1: distance less than 5 metres from wire to wire.
Case 2: distance from 5 metres from wire to wire.
EXPLANATION:
- In case 1, during the return to the station, the machine will go
around the island considering the force fields connected to the
island as the terrain boundary.
10
Lawn
50 cm minimum
Cross-section view
Case 1
- In case 2, during return to the station, the machine will follow its
exterior peripheral wire without taking the island into account.
In this case the two wires connecting the island at the edge of the
mowing area must be twisted to cancel out the signal.
Case 2
10 cm
10 cm
1. Put the wire in the ground with the MPFE wire installing
machine (pictures 18 and 19).
2. Install the wire all around the island
THE WIRES).
3. Manually install the cable with the first wire to go back towards
the edge of the perimeter.
4. Install the wire on the perimeter with the MPFE machine over
a run of several metres.
5. Twist the 2 wires connecting the island and the edge of the
perimeter with a screwdriver or use cable ties and then fill in
the trench to bury the cable.
As a general rule the distances shown in the diagram below
between different islands and pseudo-islands, the perimeter wire
and the base unit must be complied with.
Island: more than 15 m
from the base unit
Island: more than 5 m
away from a pseudo-island
Island: more than
5 m away from the
perimeter wire in
any direction
1.5 or 2.5 mm² wire
Twisted wires or nylon
cable ties
1.5 or 2.5 mm² wire
(NEVER CROSS OVER
Pseudo-island: less
than 5 m away from
the perimeter wire
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