Topcon A2677 manual Proportional Valve Settings, Valve Options

X20 Sprayer Reference Manual

Proportional Valve Settings

Figure 8-6. Proportional Valve Settings

Spraying systems that use a proportional valve are controlling a hydraulic valve, which in turn drives a hydraulic motor which drives a pump. Spray regulation is controlled by changing the pump speed. The settings will need to be tuned for the Sprayer.

Valve Options

•Add Dither—Select this when using Proportional Valves

•High Minimum PWM Range—Deselecting the High Minimum PWM Range option (default) displays Min PWM range values between 5% and 40%.

Selecting the High Minimum PWM Range option displays the Min PWM range from 42.5% to 60%

•Enable Soft Start—should be left deselected

•Close Valve When Off—should be left deselected.

A2677 Rev 1.5 8-21