Operator's Manual
DS 350 / 1319
© PAT Rev. 7 06/18/01 // MO
191319_7.DOC
22
5.1.1.B
Work Area Definition
The
work area definition system
helps the operator to define the cranes working area. This is done by
creating vertical wall(s) that can represent obstacles (i.e. buildings, towers, poles, etc.) in the cranes
working range. The wall(s) are set by defining points with the boom tip along the outer limits of the
operators work area, see setup procedure below. Because these walls are defined by the operator
and are not actual real walls, we refer to them as
virtual
walls.
When setting the walls, always
keep a safe working distance to any obstacles. Never work outside a safe working area as
outlined by common practice, standards, and manuals.
A
virtual wall
is set by defining two points. To prevent inaccuracies when defining the two points for
the virtual wall, use the following to rules:
1. The two points should be the same distance form the obstacle.
2. Set the two points at the maximum distance apart, which can be safely reached by the boom tip.
The operator can setup up to 5 virtual walls, the first wall is defined by a straight line between two set
points. The second through fifth walls are created by one new point and the previously selected point.
After the walls have been set, the system alerts the operator when the boom approaches them. This
is done both visual and audible. The console will warn the operator by an audible, beeping alarm
which increases in frequency as the boom approaches the wall. At the same times, the control light
Alarm Stop
(refer to no. 6, Chapter 3.3 of the operators manual) will come on and the button
LIM
(refer to no. 8, Chapter 3.3 of the operators manual) will be lit. Similarly, the
virtual wall
symbol in
the main screen blinks. If the boom crosses the wall the audible alarm becomes continuous. See the
Pre-Warning System Section for information on how the pre-warning system is defined.
THERE ARE NO CUTOUTS ASSOCIATED WITH THE WORK AREA DEFINITION FEATURE.
Set / delete work area:
On entering the work area definition
function, the crane working area is
displayed. A blinking X indicates that
a point may be set to define a wall.
Move the boom tip to one end of the
virtual wall you want to set.
Sets a point in the working
area to start a wall
Exits the screen