Hardi AutoHeight, Инструкция

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7 - Fault finding
53
Sensor Related Issues
Different cases of Sensor related issues are discussed below:
Sensor Swapping
Swapping Sensors is a useful procedure for determining whether a sensor error message (e.g. "
LO NC
") is due to the sensor
or the wiring to the sensor.
÷
NOTE! A sensor may have power and emit a ticking sound, but have broken communication wire(s), which would
cause this error. Performing Sensor Swapping would help determine the cause.
The procedure is as follows:
1. Exchange the affected sensor with one that is reporting correctly (e.g. "
LO
" and "
RO
").
2. Swap (input) their respective location serial numbers into the control panel (“Setting Up Sensors” on page 28).
3. If the problem still exists in the same location, the wiring from that branch may have a fault.
4. If the error appears in the new location, the sensor may not be functioning properly.
Problem(s) Possible Cause(s) Suggested Solution(s)
Height or roll sensor appears not to work (displays
"
NC
" or "
No Comm
").
"
NC
" or "
No Comm
" refers to no communication.
May be caused by a damaged or defective CAN-bus
cable.
Ensure all cables are connected correctly. The
connections should be tight and free of corrosion.
Ensure the correct serial numbers are entered for
each of the sensors (“Setting Up Sensors” on
page 28).
If the cables check out ok, the sensor may be
damaged. Try swapping sensors to see if the problem
follows the sensor.
Invalid height sensor measurement (displays "
NR
" or
"
NoRdg
").
"
NR
" and "
NoRdg
" refers to no reading. It is normal to see this message occasionally. If you
see this message all the time, the sensor may be
having difficulty obtaining a proper reading. Ensure
the sensor is not out of range. Check the sensor
alignment. The sensor should point almost
perpendicular to the ground and there should be no
obstructions between the sensor and the ground.
The protective foam shield may be contaminated. Inspect and clean the foam shield. If it is severely
worn or dirty, replace the foam shield.
The sensor may have moisture in it. This can be common for sprayers which fold the wing
tips up, thus pointing the sensors into the air. If rain or
moisture collects in the sensor, remove the
protective foam disc and allow the water to drain out.
If you leave the sensor running, it will dry out on its
own and start working again.
The sensor transducer may be damaged. Remove the foam shield and check if you can hear
the sensor ticking. If you cannot hear the ticking
sound or if it is very faint, the transducer may be
damaged and the sensor would need repairing.
Display stuck at "
Mot’n Dly
" or "
KP Stp 9
". The sensor may be reading off the boom. Try moving the sensor to a better location.
Target may be too weak. Move the sprayer to a better location with either dirt
or gravel on the ground. Ensure there is no grass or
other plants under the sprayer boom.
The sensor may be out range. Release the “AUTO (YES)” switch and manually adjust
the entire boom to approximately 90 cm above the
ground. Press and hold “AUTO (YES)” to continue with
the install or retune.