Dieci Pegasus - Alarms; Pressure Transducer Alarm

Getting to know and using tha machine
Integrated devices
C/82
Model E.T. PEGASUS
- CAUTION: - Read the SAFETY REGULATIONS (in this manual) carefully for the safety of all personnel and the machine.
PRESSURE TRANSDUCER ALARM
The pressure transducers employed provide a variable current output in working conditions.
The system checks that the signal detected is within the working range.
Two alarms are normally generated:
• When the value is below the minimum value
• When the value is above the maximum value
In the case of the lifting cylinder, only the minimum value alarm is present because when lifting a large load, the pressure can
reach the transducer limit.
The system is protected anyway because the limiting device overload is triggered.
Possible causes may include:
• The connection cable has broken
• The connection cable has short-circuited
• The pressure transducer has broken
• Board malfunction
What to do:
• If the alarm appears when the boom is moved, check the cable. A section subject to movement will almost certainly stop or
short circuit.
• Try to unscrew the connector and ensure the contacts have not oxidised. Water can get into the connector if it has not
been fastened correctly.
• Measure the power supply on the connector and check the continuity of the connections. Check the screen braiding, so-
metimes a small fray can short circuit a signal.
• Replace the transducer if necessary.
• Much less frequently, there may be a board fault. In any case, before replacing the board, check the input channel is fun-
ctioning properly by inverting the transducers.
ALARMS
E2prom alarms
These alarms indicate that the system has detected that one or more data stored in the E2PROM parameter area is/are corrupt.
Possible causes:
• The system has not been programmed yet
• Ignition with at battery
• A new accessory has been enabled but not yet programmed.
What to do:
• If the alarm was triggered after opening a new accessory, just calibrate the weight and save.
• Try to switch the system off and then switch it on again. This alarm is sometimes triggered after ignition with a at battery.
• As a last resort, if there are no malfunctions, recalibrate the machine or load the original calibration le.