Spreader Control: Pwm Control Valve - Ag Leader Integra Display Operator's Manual

Settings for a PWM Control Valve are described below.
Settings for a Servo Valve are described at
The Spinner Tab appears behind the channel tabs. The Spinner Tab is where Fan Speed settings are
shown. The Spinner Tab and Fan Speed settings are described at
.
page 297

Spreader Control: PWM Control Valve

Spreader Control
Channel 1 Channel 3
Channel 2 Spinner
Control Valve Configuration
PWM
PWM Frequency 100
PWM Gain 100
Zero Flow Offset
30
• 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.
296
"Spreader Control: Servo Control Valve" on page 297
• 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
Allowable
default setting is 100.
Shaft Speed
Error
Calibration
• PWM Gain
180 pls/rev
2 %
Determines how aggressively the control valve
Max Speed
responds when making rate adjustments. The higher the
60 rpm
value the more aggressive the system response is. The
default setting is 100.
• Zero Flow 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 conveyor to not properly shut off.
See the PWM valve manufacturer information for
recommended settings. The default setting is 30.
"Spreader Control: Spinner Tab" on
Firmware Version 6.0
.