Specifications

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APPLICATION
SPREADER
- Decreasing this value will have the overall effect of speeding up servo valve response.
- Increasing this value will have the overall effect of slowing servo valve response.
• Allowable Error
Determines the percent of error that is allowed prior to the product control system making any flow rate
changes. 2% - 3% is the normal dead band setting range.
- Too low of a setting value can cause the product control system to continually hunt for the target
application rate.
- Too high of a setting will cause excessive product application error.
• Shaft Speed Calibration
Calibration number representing the pulses that equal one revolution of the rate control metering system.
• Max Speed
The Maximum Conveyor Speed setting determines the maximum RPM of the conveyor that controls
product distribution to the application point.
Spreader Control: Spinner Tab
To view Fan Speed Calibration settings, press the Spinner Tab. Operators with Spinner Spreaders that
use PWM valves will see additional active settings.
• Fan Speed Calibration
The number of pulses that are generated by the sensor
during one revolution of the spinner dish. The default
setting is 4.
• PWM Gain
Determines how aggressively the control valve
responds when making spinner speed adjustments. The
higher the value the more aggressive the system
response is. The default setting is 20.
• PWM Frequency
The frequency that the PWM control valve is pulsed at.
Settings can be found from the manufacturer of the
valve. Typical settings range from 100-125 Hz. The
default setting is 100.
• Zero RPM Offset
Represents the maximum duty cycle that is sent to the control valve without producing any hydraulic flow
from the PWM valve. Using too high of a Zero RPM Offset value can cause the spinner system to not
properly shut off. The default setting is 30.
Note: See the PWM valve manufacturer information for recommended settings.
• Automatic Control
Checking the Automatic Control check box allows you to control the spinner speed. The default setting is
unchecked.
CREATING PRODUCTS
Creating application products including dry fertilizer blends can be completed upon initial setup or
Spreader Control
Channel 1
Channel 2
Channel 3
Spinner
Fan Speed
Calibration
PWM
Gain
PWM
Frequency
Zero RPM
Offset
Automatic
Control
4 pls/rev
20
100 Hz
30