Seed Hawk Raven 2011 - Manual (Page 62)

Chapter 3
52 Seed Hawk™ Viper Pro™ Installation & Operation Manual
Valve Type
The following valves are commonly used:
Application Type
The following table lists a brief description of each application type:
Valve Type Description
Standard
Select this type when using a standard valve. This is a butterfly-type
valve used in liquid applications or servo motor for granular
applications. The valve stays at the current setting when the control
signal is removed. This selection is also used when the product is being
controlled by a CAN Motor Control.
Fast Same as the Standard valve, but can change setting at a higher rate.
Fast Close Same as the Standard valve, but can change setting at a higher rate.
PWM
This valve uses pulse width modulation to control the speed of a
hydraulic motor. Typically used to drive a liquid pump.
PWM Close
PWM valve that closes completely when the master switch is in the 'off'
position. Typically used to control a hydraulic motor on a hydraulic drive
air cart or to a spreader apron.
Application Type Description
Liquid Liquid Applicator
Gran 1 Single-belt bed granular system
Gran 2 Split-belt bed granular system
Gran 3 Split-belt bed granular system with dual encoders
Gran 4 Air Cart System
Spinner Spinner control on granular system