OPERATOR’S MANUAL
AUTO
Control channel calculates application rates based on ground speed and
signal feedback from the application rate sensor (closed loop control) under
normal operating conditions.
DRIVE FREQUENCY
Drive Frequency specifies the frequency for the proportional valve. The
recommended setting is defined by the specific valve manufacturer.
PWM OFFSET
PWM Offset identifies the minimum amount of PWM valve drive required to
start the granular mechanism.
PWM SATURATION
PWM Saturation identifies the amount of drive the granular valve system
requires to operate a PWM valve at full speed.
SYSTEM RESPONSE
Adjusts the control system response time to the hydraulic and mechanical
systems of the granular control channel on each particular spreader vehicle.
VALVE BOOST
Increases the amount of system response initially applied to the granular
control to reach final operating speed as quickly as possible.
AFILT
Filters the feedback signal to minimize the effect of electrical noise and
mechanical vibrations. The smaller the number, the greater degree of
filtering.
MATERIAL
Selection of the four materials that are configurable for the channel.
SENSOR CONSTANT
Sensor Constant establishes the number of pulses for one revolution of the
application rate sensor. If a standard DICKEY-john application rate sensor is
used, the value should be set to 360.0.
SPREADER CONSTANT
The Spreader Constant displayed value is viewable only and indicates the
current setting. This value automatically adjusts when a granular calibration
is performed.
60 / SYSTEM PROGRAMMING
Flex4 Pro
TM
Control System
6010541 Rev A
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