Great Plains DICKEY-john IntelliAg Planter-Drill Control L3 - Manual (Page 96)

OPERATOR’S MANUAL
IntelliAg PDC User 2 & 3
11001-1501-200811
88 / SYSTEM CONFIGURATION
DRIVE TYPE
PWM (Pulse Width Modulation)
A valve, usually hydraulic, which varies the oil flow to a hydraulic motor
proportioned to electric current supplied. This type of valve consists of a
flow cartridge and coil assembly.
Servo
A hydraulic valve that is opened and closed by an electric motor gearbox.
NOTE: DICKEY-john Servo valves
operate at 40 Hz; DICKEY-john
Proportional Valves operate at
100 Hz.
DRIVE FREQUENCY
Drive Frequency specifies the frequency for the proportional valve that is
being used. The recommended setting for this option should be specified
from the specific valve manufacturer.
INPUT FILTER
The Input Filter provides a setting for the amount of filtering applied to the
feedback frequency feedback of the Control Channel.
IMPORTANT: It is NOT recommended that the Input Filter be altered.
Any adjustments could result in the channel not
operating properly. If adjustments are made a valve
calibration must be performed.
SENSOR CONSTANT
Sensor Constant establishes the number of pulses for one revolution of the
metering unit. If a DICKEY-john application rate sensor is used, the value
should be set to 360.0.
MASTER SWITCH OFF
Disabled-Shuts down the control channel when booms are turned off.
Channel will start operating again when master switch is turned on.
Locked-Locks the valve into the last operating position when booms are
turned off. This maintains system pressure while turning so a quick spray
pattern may resume after turning is complete. Also used for tank agitation.
Active-Channel continues to operate after the master switch is turned off.
RAMP UP/DOWN
Sets the response time of the RPM control. The higher the value, the
quicker the response; the lower the value, the slower the response time.
Default value is set a 4.8%.
Use caution when selecting a ramp up/down value. A rate set too
high may cause equipment damage.