CHAPTER 4
30 ISOBUS Product Control Installation & Operation Manual
speed of 0.7 mph [1.1 km/h] must be maintained for more than 10 seconds or the zero speed shutoff feature will
shutdown product application.
NOTE: To utilize the zero speed shutoff feature, a fast close or PWM close valve must be used to control
product flow.
IMPLEMENT SWITCH
The optional implement proximity switch may be used to shut off application of anhydrous ammonia products if
the implement is raised out of the soil to prevent discharging ammonia into the atmosphere. Enable this feature to
allow the ISOBUS control node to automatically shut off the product when the implement is raised out of the soil.
NOTE: The implement switch feature is only available when the Applicator Type is set to ‘NH3 Applicator’
and should only be enabled if the optional remote implement switch kit (P/N 117-0171-298) has been
installed with the ISOBUS control system. Contact a local Raven dealer for more information.
The implement switch feature is enabled by default when the control type is set to the ‘NH3
Applicator’ option. If an implement switch has not been installed with the system, this option must be
disabled.
SECTION CONTROL
The section control feature allows the Raven ISOBUS product control node to automatically control sections in
reference to coverage maps. When enabled, section control will automatically turn off an active section as it enters
an area where product has been previously applied. As the section leaves the previously applied area, the section
control feature turns the section back on.
The VT display must be capable of automatic section control to enable the feature. Check the manufacturer
operation guides and materials for information on utilizing this feature.
• If the VT is capable of automatic section control and the section control feature is available in the Raven
ISOBUS product control screen, select the feature to place a check mark in the corresponding box to enable the
feature.
• If the VT display is capable of automatic section control, but the section control feature is not available in the
Raven ISOBUS product control screen, the feature must be enabled from a different VT display menu.
• If the VT display is not capable of automatic section control, the Raven ISOBUS product control node will not
automatically control sections regardless of the section control selection on the Raven ISOBUS product control
screen. It is recommended to deselect or disable this feature when operating the ISOBUS product control
system.
PWM SMART CONTROL
The PWM smart control feature may be enabled to allow the control system to estimate the required PWM duty
cycle for changes in vehicle speed or target rate, or when the hydraulic valve is toggled on. When this feature is
enabled, control response will be much more aggressive.
DUAL LOOP CONTROL
The dual loop control feature is designed for use with low application rates and requires a pressure transducer
with a liquid application system controlled with a PWM valve. The dual loop feature uses both the flow meter to
monitor liquid product flow and a pressure transducer to monitor liquid product pressure controlling a pump to
enhance the control response during operation at low application rates. The default setting for this feature is
disabled.
If the dual loop control feature is enabled, the valve cal and valve cal 2 values programmed during the initial
configuration will be replaced with the flow cal and Sgain values.
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