Friendly Robotics robomower RL350 Service Manual page 49

6.3.3 Enable DK
Enable DK is a feature that is helpful when operating the mower in an area where magnetic
interference is suspected in a certain lawn or when the Robomow is operated indoors, i.e. at an
exhibition.
Indoors exhibitions are typically on concrete floors that contain a great deal of metals. This large
amount of metal will skew the magnetic field causing the mower to run in curved lines rather than
straight lines. Turning the 'Enable DK' feature off will allow the mower to navigate solely on
wheel rotation measurement, thereby not using the magnetic field of the earth. This will allow for
straight lines in a show environment. The default of this feature is always on.
Enable DK is divided into 2 modes: edge and scan and it is possible to disable the DK either in
edge or scan. Disabling the DK in the 2 modes enables to operate the mower without compass at
all (or when the compass is faulty).
6.3.4 Max leg distance
Enable to set the max distance between the perimeter wires in every zone.
There is a monitoring system that detects the wire sensors readings during operation. If the
readings are not changed for some time (it depends on the distance between the wires), it means
that the mower is probably stuck in place.
For example:
in lawn 10 by 30, the mower will not drive more than 10 meters with the same readings, but in lawn 40 by 90 it may
drive for 60 meters with no changes in the wire sensors readings.
If during scanning it is found that the max leg distance set by the user is shorter than what does
the mower calculate, then the S.W will update it.
6.3.5 Thermistors
Enable Thermistors is set to 'on' by default at the manufacturer. This option is used when
replacing a Main Board in old configuration Robomow, which has no Thermistors – in such case
there are two options:
1. Add Thermistors to the Robomow, as the new Main Board supports this option.
2. Set the 'Thermistors' option to 'off' if the Robomow does not have Thermistors.
6.3.6 Mowing
The mowing feature provides the ability to disable the operation of the mowing motors. All other
aspects of the mower will perform normally, however the blades will not rotate. This feature is
useful when testing the set up of the perimeter wire prior to having the wire fully pegged to the
ground, preventing the risk of cutting it. Additionally, it is a feature that can be used when using
the mower in exhibitions, for safety reasons.
6.3.7 Drv. Overcurrent
Option to set the drive over current (load) threshold in which the mower will change the drive
direction.
6.3.8 Mow Overcurrent
Option to set the mow over current (load) threshold in which the mower will change direction to
move from the area with high grass.
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