System Overview

The GS2 Rate Controller system controls product application on pull-type sprayers, self-propelled sprayers, NH3 applicators, liquid fertilizer systems, and planters. It is designed to work seamlessly with Swath Control Pro in order to turn implement sections on and off according to coverage, boundary, and GPS location.

NOTE: See GS2 Basics operator’s manual for further details on Swath Control Pro.

The system is comprised of the following hardware components:

• GreenStar 2100 or 2600 Display. (For compatibility with GreenStar 1800 display, see the GreenStar 1800 Operators manual.)
• GS2 Rate Controller Flexbox.
• Foot Switch.
• Wiring Harnesses.
• Switch Box Controller PF90514 (optional).
• GreenStar cab harness.
• Starfire iTC GPS receiver (optional).
• Implement Height Switch (required for NH3 systems, planters, and liquid fertilizers, but not sprayers).

The GRC controls flow and individual implement section valves or planter clutches based upon display settings, vehicle speed, foot switch status, signals from a flowmeter, and the status of switches on the optional Switch Box Controller.

The Switch Box Controller (SBC) monitors the status of ten section switches plus a master switch and broadcasts the switch messages to the GRC(s). The master switch is hard-wired to the GRC(s). This allows the operator to manually enable or disable sections rather than rely solely upon the display for these settings. The master switch permits the operator to shut off all sections on all GRCs in the system. The master switch on the switch box serves the same purpose as the foot switch and only one of the two is required for system operation.

In order for the system to control individual sections under normal operating conditions, the following conditions must be met:

• Master switch must be on.
• Section switch must be on (if Switch Box is present).
• Operator must have turned on the respective section on the display.
• Swath Control must have commanded the section to be on (if applicable) or Swath Control Pro is deactivated.
• Vehicle speed (based on GPS) must be greater than 1 km/h (0.62 mph) (0.3 km/h (0.2 mph) for planters).
• The implement is lowered into the ground, activating the implement switch (not required for sprayers).

IMPORTANT: When setting up a GreenStar Rate Controller in a system containing multiple Rate Controllers, ensure the setup being performed is applied to the intended Rate Controller. Verify the serial number on the Rate Controller matches the Rate Controller serial number selected on the GS2 Display.

NOTE: Turning the master switch on/off affects all rate controllers in the system.