Ag Leader Versa Users Manual - Manual (Page 249)

235
A
PPLICATION
S
PREADER
- 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 this box enables closed loop spinner control.
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