Manual No. 016-0159-925 Rev. F
43
Data Menu
VLV STATUS (when not programmed in PWM mode)
Displays the current status of the control valve (i.e. increasing, decreasing or idle) and gives further detail on
the control status (Full on, in second breakpoint or in first breakpoint).
Page 3
Standby (Pressure) Enable (PWM Valves Only)
Note:
To enable the standby pressure setting, the product control system must have a PWM valve
controlling a liquid application system and a pressure transducer connected to the control node. If
these requirements are not met, the console will automatically disable the standby pressure
enable feature.
When enabled, the standby pressure setting will replace the preset PWM setting in the Product
submenu. Review the Preset PWM Offset (PWM Valves Only) section on page 40.
The standby enable setting allows the operator to enable the standby pressure feature and enter a minimum
pressure value. Refer to the
Standby Pressure (PWM Valves Only)
section on page 40 for information on the
standby pressure value.
Low Pressure Limit
Enter a non-zero value to set a minimum pressure for the control system when applying liquid products. If the
application or boom pressure falls to the set minimum value, the control valve will be controlled to maintain the
low pressure limit value. The low pressure value is entered in PSI [kPa or BAR].
Dual Loop Control (PWM Valves Only)
The dual loop control feature is designed for use with low application rates and requires a pressure transducer
with a liquid application system controlled with a PWM valve. The dual loop feature uses both the flow meter
and pressure transducer to enhance the control response during operation at low application rates. The default
setting for this feature is disabled.
Note:
If the dual loop control feature is enabled, the valve cal and valve cal 2 values will be replaced with
flow cal and system gain settings. Refer to the Dual Loop Control Mode Settings section on
page 57 details on setting and adjusting the flow cal and system gain values when using this
control mode.
Auto Calibration (PWM Valves Only)
The auto calibration feature may be used to automatically calibrate the high and low offset values for a PWM
control valve in either a liquid or granular control system. The SCS console will display ‘Not Calibrated’ if the
auto calibration process has not been performed for the selected control channel.
Note:
The auto calibration feature requires a PWM type control valve and a product node capable of
performing the auto calibration feature. The SCS console will display ‘Not Applicable’ If the valve
type or product node on the selected control channel is not capable of performing the auto
calibration process.
It is typically only necessary to run the auto calibration for each product node once. However, if
significant modifications are made to the hydraulic system, or if the PWM control valve is replaced,
