Working area definition
© 2009 Hirschmann Automation and Control GmbH · Branch Office Ettlingen · eMail: [email protected] · www.hirschmann.com
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24 183 19 1012e (Generic) / 2009-02-26 / Rev. 01 / rk.
4.4.5 Virtual wall monitoring
Programmable function to monitor the
working area by up to 5 "virtual" walls
Calling up the function
Overview menu with symbols appears, with any previously programmed
limits.
The working area definition system helps the operator to define the crane’s working area. This is done by creating vertical wall(s) that can
represent obstacles (i.e. buildings, towers, poles, etc.) in the crane’s working range. The wall(s) are set by defining points with the boom tip
along the outer limits of the operator’s 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:
•
The two points should be the same distance form the obstacle
•
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 and when the
boom approaches them. This is done both visual and audible. Similarly, the “virtual wall” symbol in the main screen blinks.
edit radius limit
edit height limit
edit boom angle limit
Go to next key level
edit slew angle limit
edit virtual wall(s)
(the previous stored walls will be displayed, if any)
Go to previous key level
back to limits main menu
>