OPERATING PROCEDURES GRT8120 OPERATOR MANUAL
4-84 Published 3-22-2021, Control # 702-02
6
WRL Virtual Walls
Enable Indicator
Indicates that one or more virtual walls are defined.
WRL Virtual Walls
Warning Indicator
Indicates the boom tip is within 6 m (20 ft) of a virtual wall that has
been set.
The warning buzzer slowly beeps when the boom tip is within 6 m
(20 ft) of a virtual wall and changes to a fast beep when the boom tip
is within 1.5 m (5 ft) of a virtual wall.
WRL Virtual Walls Stop
Indicator
Indicates the boom tip is at a virtual wall that has been set. The
warning buzzer is on (constant).
For cranes that are equipped with the WRL Lock Out Function, the
telescope out, boom down, and swing left or swing right crane
functions are locked out.
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