OPERATING PROCEDURES GRT655/655L OPERATOR MANUAL
4-62 Published 3-23-2020, Control # 654-04
WRL Limitations Overview
For each of the limitations, the limitation must first be
ENABLED within the WRL feature of the crane control
system software. This is done with particular screens and
buttons on the Operating Display Module. Once the limitation
is enabled, then it can be DEFINED (in terms of specific
angles, locations, etc.). This is also done with the screen and
buttons on the Operating Display Module, as well as usually
operating the boom to define particular locations.
With the limitation enabled and defined, the control system
can then provide the needed feedback and warnings. When
the crane is in such a position to cause warning, then the
WRL limitation is considered to be ACTIVE.
In summary, to turn on a limit within the WRL, the following
steps must be performed:
1. Enable the Limitation
2. Define the Limitation
When any limitation is enabled (but none are active), the
Main Screen shows an indicator. Figure 4-38 shows the
Main Screen with the Working Range Limiter (WRL)
Indicator, which has a green-colored background. If no
limitations are enabled, then this same symbol is shown, but
without the green-colored background (thus appearing
similar to other non-highlighted symbols on the screen).
FIGURE 4-38
WRL Limitation is Enabled indicator on Main Screen (green background for symbol)
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