TeeJet Legacy 6000 Manual - Manual (Page 35)

Chapter 2 - System overview 30
Table 2-10: PWM Settings
settings description
gain Speed at which channel reacts to an off-target condition. decrease to slow down the reaction;
increase to speed up reaction (settings too high can result in oscillation).
Frequency Frequency of the Pwm valve drive signal (frequency typically recommended by valve or
motor supplier).
minimum duty Cycle Minimum duty cycle to which the valve will respond, specified by the manufacturer.
maximum duty Cycle Maximum duty cycle to which the valve will respond, specified by the manufacturer.
Ramp time time taken for the control to ramp from minimum duty cycle to maximum. decrease if the
valve reacts too slowly when off target. increase if control reacts too quickly (overshooting
target rate).
dither Prevents valve from sticking (specified by the manufacturer).
master Switch Control valve response to all booms (oFF). hold - Control valve will hold in the same position.
Closed - Control valve will drive full closed and start backup at minimum duty cycle. Resume
- Control valve will close when booms are turned off but will resume at last used duty cycle
setting when booms are turned on again.
implement Status Control valve response when implement status is open (oFF).
hold - Control valve will hold in the same position. Closed - Control valve will drive full closed.
Resume - Control valve will close when booms are turned off, but will resume at last used
duty cycle setting when booms are turned on again.
Valve delay Control delay after turning booms oN from hold/Resume. when the control valve is set to
close, this feature is deactivated. when master oN, the valve will delay control for the set
value.
Figure 2-25: Injection Settings
Table 2-11: Injection Settings
settings description
Prime Volume Amount of liquid required to prime the pump. This is the volume necessary to fill
plumbing lines from the chemical tank to the injection point.