OPERATOR’S MANUAL
PULSE FEEDBACK
Enable Pulse Feedback by selecting YES for closed-loop control. Disable
Pulse Feedback by selecting NO for open-loop control.
SPINNER CONSTANT
Establishes the number of pulses for one revolution of the spinner. Spinner
Constant appears only when Pulse Feedback is YES.
PWM OFFSET
Identifies the minimum amount of PWM valve drive required to start the
liquid mechanism.
PWM SATURATION
Identifies the amount of drive the liquid 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 liquid control channel on each particular spreader vehicle.
VALVE BOOST
Increases the amount of system response initially applied to the liquid
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.
GROUND SPEED RELATED (GSRS)
Regulates the spinner speed related to ground speed and running closed
loop. Enable by selecting Yes. Controlling the spinner according to ground
speed allows the material to disperse at zero velocity. Displays only if Pulse
Feedback is YES.
GSRS SLOPE
When GSRS is enabled, GSRS Slope indicates the spinner revolutions per
mph/kmh on the Operate screen. Displays only if Ground Speed Related is
YES.
MAXIMUM GSRS
When GSRS is enabled, Max GSRS determines the scaling of the spinner
bar graph on the Operate screen. A full bar graph indicates that the
maximum GSRS speed has been exceeded in mph/kph. No alarm is
associated with this constant. Displays only if Ground Speed Related is
YES.
70 / SYSTEM PROGRAMMING
Flex4 Pro
TM
Control System
6010541 Rev A
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