Causes Analysis of Common Crane Computer Trouble Reporting
01: The working range is too small or the angle of the boom is too large.
Cause: Amplitude exceeding the minimum or angle of the performance meter is higher than the maximum angle of the performance meter.
Solution: Downward amplitude to the range or angle allowed by the performance table
02: Too large working range or too small angle of boom
Reasons: The amplitude exceeds the maximum or the angle of the performance table is lower than the minimum angle of the performance table, because the downward amplitude of the main arm of the amplitude changer is too large.
Solution: Up to the range or angle allowed by the performance table
03: No working condition or no turning area allowed
Solution: Set a correct working condition; turn to the allowable working area.
04: The length of the boom is not within the allowable length range.
Reason: The main arm is too extended or not long enough; the length sensor is adjusted
Solution: The main arm is telescoped to the correct length; a coil spring is replaced with a driving wheel, and then the length sensor is adjusted in the way described above.
05: The voltage value of the measuring channel of the main arm length sensor is lower than the lower limit.
Reasons: The length sensor is bad; the electronic components of the measuring channel are bad.
Solution: Replace length sensor; Set PDB variable with correct simulation value in DGA6.i.3
06: Voltage value of measuring channel of rodless oil pressure sensor is lower than lower limit
Reasons: Bad oil pressure sensor without rod chamber does not support PDB variable of analog value; Bad electronic component of measuring channel
Solution: Replace the pressure sensor and set the PDB variable with correct simulation value in DGA6.i.3
In a word, there are various reasons for the possible faults of cranes, which need to be checked, tested and judged step by step from outside to inside, from machinery to electricity, from software to hardware.