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5.5 Buzzer stopping
The buzzer of HC4900 console will alarm at the following situation:
Actual load exceeds the max. rated load moment
The hook is approaching height limitation (A2B fault)
Exceed the operating range of the crane
LMI system defective
Operation fault
Press F5 to stop the buzzer alarming
temporarily。
Main interface
.
The audible alarm is only temporarily silenced. The fault that caused the
alarm to go off still exists and should be corrected immediately. The alarm
will sound again if fault is not corrected or if a new fault is detected.
CAUTION
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