Hardi ISOBUS VT, Operator'S Manual

Page: 93 / 104

11 - Fault finding
11.15
Emergency operation
In an emergency situation
If an error occurs in the system then choose Computer CAN status. This
test will show if there is communication between the units. The menu
will be as shown.
˜
ATTENTION! See also “Menu 4.7 Emergency” on page 8.3.
Operation when a sensor fails
When one of the sensors for RPM, flow or pressure fails, the system will work in a limp home mode with reduced, though
acceptable, performance. One of the alarm ID’s between 140 to 147 will be triggered in the controller display. See also “Fault
codes” on page 11.5.
•
In the auto mode, the system will not work with 2 failing sensors, hence the operator should repair the failing sensor
as soon as possible.
•
The pressure regulation can use both wheel speed sensor on trailer and GPS speed via ISOBUS.
÷
NOTE! SafeTrack only works with wheel speed sensor.
Pressure regulation angle sensor works both as a feed back to the computer and as the end stop switch. If angle sensor fails,
the operator can continue turning regulation valve past the completely closed position.
Failure in the sensors below will cause an inaccurate calculation of the volume rate when spraying. In order to be able to end
a spray job when a sensor fails, do the following:
RPM Flow Pressure Speed Valve angle Mode for regulation Extra actions for operator
Use Use Use Use Use Full performance None
Defect Use Use Use Use Reduced performance None
Ignore Defect Use Use Use Reduced performance Setup new size when changing nozzle, see “Menu
3.4.3 Nozzle size flow at 45 psi” on page 7.10.
Defect Defect Use Use Use Reduced performance Setup new size when changing nozzle, see “Menu
3.4.3 Nozzle size flow at 45 psi” on page 7.10.
Ignore Use Defect Use Use Reduced performance Setup new size when changing nozzle, see “Menu
3.4.3 Nozzle size flow at 45 psi” on page 7.10.
Defect Use Defect Use Use Reduced performance Setup new size when changing nozzle, see “Menu
3.4.3 Nozzle size flow at 45 psi” on page 7.10
Use Use Use Defect Use Spray at constant speed Keep sprayer at constant driving speed.
Type in simulated sprayer speed, “Menu 3.4.2
Simulated speed value” on page 7.9
.
Ignore Defect Defect Ignore Use Manual only Adjust pressure after mechanical pressure gauge.
Ignore Ignore Ignore Ignore Defect Manual only. Regulation valve can
pass end stop. I.e. when continuing
after it was closed, it opens again. Adjust pressure after mechanical pressure gauge.
Check for passing end stop of valve.
Compensate for sections change.