OPERATING PROCEDURES GRT655/655L OPERATOR MANUAL
4-78 Published 3-23-2020, Control # 654-04
Table 4-9 Screen Symbols
In addition to the symbols that can be highlighted by the
arrow functions, the following are shown on the screen:
Symbol Description
Lock Out symbol and Alarm/Warning symbol - These symbols will not appear if the WRL is configured
for only the Lock Out Function or only the Alarm/Warning Function. Standard cranes are configured
for only the Alarm/Warning Function. Cranes configured for both functions, Lock Out and
Alarm/Warning, give the operator the ability to toggle between these two symbols, which indicate the
selection for the Lock Out Function (top symbol) or the Alarm/Warning Function (bottom symbol). The
selection for this configuration is toggled with an OK button (2, Figure 4-40).
Enable symbol - this symbol is used to enable or disable the swing limitation. Note that swing left and
swing right limitations will both be enabled or disabled. The selection for this option is changed with an
OK button. The symbols shown on the top (green background) indicate that the limitation is enabled.
The symbols shown on the bottom (not green background) indicate that the limitation is disabled.
Accept Crane Position symbol (2X) - If the limitation is enabled, these symbols allow the acceptance
of the current crane position to be the limitation value; which one is indicated by the position of the
symbol on the screen - the top one is for swing left and the bottom one is for swing right.
If an Accept Crane Position symbol is highlighted (as shown here with orange background), and the
crane position is accepted with an OK button, then the value shown in the related Limitation Value is
updated to be the current crane position (which is shown on the screen near the crane symbol). Note
that the swing angle cannot be typed in (as is possible with the Height Limitation). Also, if the limitation
value is beyond allowable limits, a fault will be generated, and a fault symbol will appear on the
display.
This is the swing right indicator.
This is the swing left indicator.
Symbol Description
Swing Left Limitation Value - this value is the currently specified swing angle limitation value for
swinging left.
Swing Right Limitation Value - this value is the currently specified swing angle limitation value for
swinging right.
Current Crane Position - this value shown on the screen is the current swing angle value. It is the
same value shown in the RCL screen.
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