OPERATING CONTROLS AND INDICATORS TMS9000-2 OPERATOR MANUAL
3-54 Published 02-21-2019, Control # 611-05
The following limitations are available for the WRL:
NOTE: The Working Range Limiter feature is an operator
aide, it can assist the operator by alerting when
limits are approached or reached. The WRL should
not be relied upon in place of good operating
practice, they are there to assist, not direct
operation. All appropriate techniques such as other
personnel providing visual guidance to the crane
operator are to be employed. In addition, when the
lockout capability is utilized, crane functions are
expected to be used with the same caution as if the
lockout capability was not present. In particular, it
must be noted that the swing function has a
coasting or free-swing characteristic that will not be
affected by the slow-down and lockout of the swing
function. As such, swing speeds are to be no more
than 1 degree of swing per second.
Turning off the power to the control system disables any
WRL limitations.
WRL Limitations
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. 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, 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, then, the use of the
WRL involves steps to enable the limitation, define the
limitation, and then limitations can become active once
warnings are generated for the operator (based on the crane
position).
There is no icon for WRL when it is enabled, but alerts show
up on the left side alert bar when a limit is reached.
(Figure 3-50) shows the Main Screen.
When a limitation is active, the Main Screen shows an
indicator for the limitation (in addition to audible alarms).
There are similar symbols for the other limitations; (Table 3-
1) shows the active indicator symbols for the WRL
limitations.
When a limitation is active, audible alarms are generated.
(Table 3-2) indicates the behavior of the audible alarm for the
various limitations.
The operator should notice that all the audible alarm triggers
use the values of 10 and 5. This may be 10 or 5 degrees, or it
may be 10 or 5 ft distance. This is intentional so that the
operator can continue to watch the crane operation and not
have to look at the display (assuming the 10 and 5 values are
remembered). Whenever slow beeping is heard, this will be
a 10 threshold. Whenever fast beeping is heard, this will be a
5 threshold. Whenever there is a solid sound, this will signify
being at the limitation.
• Height Limitation active symbol: boom
height limit can be defined for a maximum
boom elevation.
• Boom Up/Down Limitation active symbol:
boom up/down limits can be defined for a
minimum and maximum boom angle.
• Radius Limitation active symbol: boom
radius limits can be defined for minimum
and maximum radius working zones.
• Swing Limitation active symbol: swing
angle limits for swing left and swing right
directions can be defined.
• Virtual Wall Limitation active symbol: up to
five virtual walls can be defined to be job
site objects or warning zones.
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