Hardi AutoHeight, Instruction Book

Page: 43 / 62

5 - Operation
43
Remote Switches
When remote switches are enabled, the AutoHeight can be put into automatic or manual mode using a remote switch
connected to the remote auto and manual input lines. This feature can still be used in conjunction with the remote auto
line as the trigger in headland mode. The remote auto and manual input lines are located on pin 1 and pin 6 of connector
P16B on cables 44650-35 and 44650-39. Please refer to the AutoHeight Installation Manual for detailed schematics of these
cables.
Crop filter toggle
Enabling this feature will tend to reject electrical and sonic noise and keep the sensor locked on to stronger targets. The
Crop Filter option is normally defaulted to on for most sprayer types. To access this feature:
1. Press and hold "AUTO (YES)" from the run screen.
2. While holding the "AUTO (YES)" switch, toggle the "+/-" switch to turn the feature on or off. "CropF n" means the crop
filter is OFF, "CropF y" means the crop filter is set to ON.
There are two main reasons why you might want this feature enabled.
• If a main lift sensor is having difficulty reading properly in crop mode.
• If the wings seem excessively jumpy in crop mode.
There are two main reasons why you might want this feature disabled.
• The sensor may track the canopy in thin crop better.
• Disabling this feature may also produce less "No Data" messages flashing in place of the sensor height readings.
High Oil Temperature Alarm
The High Oil Temperature Alarm will sound if the AutoHeight valve block reaches a temperature of 95° C. This alarm will only
sound once and will not repeat. The alarm is re-enabled each time the automatic mode is entered. If the alarm sounds, the
screen will also show “VT Max” for 2 seconds to inform the operator that the valve block temperature is at a maximum.
This alarm is for informational purposes only, to indicate when there is a major oil heating issue with the machine. This alarm
does not reflect the warranty of any components. Actual maximum oil temperature is determined by the fluid used in the
system and should be recommended by the sprayer manufacturer.
Sensor Reading Alarm
Pressing and holding "SENSOR DISPLAY" will enable / disable the sensor reading alarm. If enabled, the alarm will sound if an
ultrasonic sensor has lost a reading. The alarm is defaulted to off.
To activate automatic mode
Apply +12 VDC to the remote auto line. The voltage must always be applied after the display
has been powered up. The AutoHeight will not go into automatic mode if voltage is applied
to the remote auto input line before the system is powered up.
To activate manual mode
Apply +12 VDC to the remote manual line. The remote manual function always has priority
over the automatic function.