Trimble GCS900 - Page 43

Using theControl Box and Lightbars 2
Event Sounds when... Pattern
Above Grade The bucket is more than the vertical tolerance
and less than four times the vertical tolerance
above grade.
Continuous:
50 msec on,
50 msec off
On-Grade The bucket is within the vertical tolerance of
grade.
Continuous:
On
Below Grade The bucket is more than the vertical tolerance
and less than four times the vertical tolerance
below grade.
Continuous:
100 msec on,
100 msec off
Approach Avoidance Zone The machine is within the warning distance of an
avoidance zone.
Once only:
200 msec on,
200 msec off,
400 msec on
Warning Message Appears A warning message appears. Once only:
200 msec on,
200 msec off,
200 msec on
Warning Message Disappears A warning message automatically disappears. Once only:
200 msec on
GNSS Accuracy The GNSS accuracy level changes. Once only:
200 msec on
UTS Tracking The UTS loses lock on the machine target. Once only:
200 msec on
Laser Alerts A laser strike is detected in the laser catcher
window.
Once only:
200 msec on
Key/Switch Beeps A key or a switch is pressed. Once only:
200 msec on
GCS900 Grade Control System for Excavators Operator's Manual 43