NORAC UC4.5-BC Operator Manual - Manual (Page 39)

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If the wings only mode is selected; when the Headland Assist is triggered only the wings will
raise to the Headland Assist height. When triggered again, the entire boom will return to
automatic mode.
10.2 Remote Switches
When remote switches are enabled, the UC4.5 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 line is located on pin 1 of connector P16 (wire is hidden under spiral wrap) and
the remote manual input line is located between pin 11 on connector P16 and pin 11 on
connector P12 on cables 44650-50 and 44650-51. Please refer to the UC4.5 Installation Manual
for detailed schematics of these cables.
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 UC4.5 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.
10.3 High Oil Temperature Alarm
The High Oil Temperature Alarm will sound if the Norac 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
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.
10.4 Sensor Reading Alarm
Pressing and holding 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.
10.5 Minimum Height Mode
Minimum height mode is normally used only for systems with five sensors (severe terrain kit).
Since the five sensor system has two wing sensors that average the height, it is possible to have
a boom tip close to the ground while still maintaining an acceptable average height. The
minimum height defines the lowest height in which a single sensor on the wings is allowed to
go.