Displays and controls
© 2009 Hirschmann Automation and Control GmbH · Branch Office Ettlingen · eMail: [email protected] · www.hirschmann.com
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24 183 19 1012e (Generic) / 2009-02-26 / Rev. 01 / rk.
(12) “Tare”
key
The
“TARE”
key is used to display the net load on the
actual
load display.
The net load is the actual load less the lifting
gear and hook block. The
“TARE”
key must be pressed
before
the lift process starts.
After actuation, the current load display is reset to zero (tared). After lifting
the load, the actual load display shows the net load (working load). Once
the working radius changes (due to a change of angle or radius), the
display changes back to the actual load and the tare function is ended.
NOTE:
The actual load includes the load suspension device, the lifting
cable and all load limit stop equipment. The net load is the current load
without any load limit stop equipment. Display errors can be caused by
environmental factors, e.g. wind on the boom or load.
(13) “Alarm acknowledge” key
When this key is pressed, the acoustic alarm can be
suppressed after sounding for at least 5 secs.
After around 10 secs., the alarm sounds again if the reason
which triggered the alarm is still present.
The acoustic alarm sounds in the following cases:
System test, overload status, LMI system fault, and operating errors
detected by the system.