Chapter 8-6
Robomow City 120
Problem Encountered
Probable Cause/Event
Corrective/User Action
Perimeter Switch / Perimeter Switch
‘Cut wire’
indicator flashing on
Perimeter Switch or on Base
Station
- Wire disconnected from switch
- Confirm wire is plugged in and wire leads are firmly
attached
- Perimeter wire cut
- Walk along perimeter, including islands and
obstacles excluded with the perimeter wire and
look for obvious cuts or breaks in the wire. Repair
with Robomow wire splice connectors.
- Poor connections
- Check and repair all loose/poor or corroded
connections
‘Poor connection’
indicator
flashing on Perimeter Switch
or
the Base Station beeps intermit-
tently for poor wire splicing or
too long
- Twisted cables, or a screw terminal,
insulated with insulation tape is not a
satisfactory splice. Soil moisture causes
the conductors to oxidize and after a while
result in broken circuit.
- Use the connectors supplied in the box. It
is waterproof and gives a reliable electrical
connection.
- Perimeter wire is too long for one zone
- A maximum perimeter wire length of 500 m is
recommended. Areas requiring longer lengths
should be broken into separate zones.
Perimeter Switch will not
activate when turned on.
- Power Supply is not connected
- Confirm power supply is plugged into the main
power receptacle, re-connect the plug to the
Perimeter Switch and confirm the ON is blinking.
- Batteries are completely discharged.
- Install fresh alkaline C-cell batteries
- Perimeter Switch not installed vertically
and exposed to water/rain.
- Water/moisture protection of the Perimeter Switch
can only be insured when mounted vertically.
Replace Perimeter Switch.