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6.6.2 DISPLAY MESSAGES
As previously explained, the electronic control unit is fitted with a 3 digits display showing messages which help
the operator understanding if everything is working properly, the operating state and the functioning of its
electrical components.
The operator, when led by an expert or following basic operations, can actually read on such display different
messages helping him locating possible electrical anomalies on the system. This is a great help for searching
and identifying possible faults, preventing useless and unsuitable interventions by the after-sales service.
Against possible displays of error messages, the operator is requested to contact the Technical After-Sales
Service.
6.6.3 NORMAL DISPLAY MENU
When switching on, after a sequence of messages on the display this must show:
When carrying out whichever movement by selecting the function it must appear:
When the overload condition is almost reached the display shows:
When the crane goes gets locked by the LLD (overload) the display shows:
In this case you have to carry out the manoeuvres allowing the overload reduction, i.e.: extension re-entry or
winch lowering.
The boom might be blocked on maximum lift position on some crane models, even without load.
To be able to descend with the lifting cylinder, it is necessary to select the extension insertion or the winch
descent and immediately afterwards the boom descent followed by the proportional button.
In case of pressure gauge (pressure transducer) signal absence
Moreover, the system can show the following error messages, which can be displayed when operating or trying
unsuccessfully to operate.
The messages and relevant meanings are the following:
“O”xx followed by the solenoid valve abbreviation.
It means open circuit detected on the solenoid valve in object.
Examples:
Open circuit alarm on solenoid valve EV3B.
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