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Overlap Control refers to the ability of the AFS Pro 600 / Pro 700 to automatically shut off seed drive motors based on the position of a planter section relative to an already-applied area of the field. Overlap Control is based on the as-applied map created by the Pro 600 / Pro 700. (This feature also applies to Patriot Sprayers and Titan Floaters equipped with the AFS Pro 600 / Pro 700 rate/boom control system!)

To enable Overlap Control, set the Overlap Control window to "On" in the Toolbox > Overlap Setup screen. Then set the desired Percent Overlap. The default value is 99%. This means that 99% of a section (hydraulically controlled or air-clutch controlled) must be overlapping a previously applied area before the section will turn off. A high percentage results in more overlap and very little skip; a lower percentage results in more skip and less overlap. The allowable range is 1% - 99%.

Overlap Control also requires that the Section Control Method, Start Early Distance, Stop Late Distance, Bar Distance, and Product Delay be set correctly. (see below)

Boundary Control refers to the ability of the AFS Pro 600 / Pro 700 to automatically shut off seed drive motors based on the position of a planter section relative to an inner or outer boundary in a field. Boundary Control is based on boundaries, and is not related to the as-applied map. To use Boundary Control, you must have existing inner and/or outer boundaries for the current Field. Boundaries can be recorded in the Pro 600 / Pro 700, or can be exported from a compatible desktop software application.

To enable Boundary Control, set the Boundary Control window to "Yes" in the Toolbox > Overlap Setup screen. Then set the desired Percent Out Of Bounds. The default value is 1%. This means that when 1% of a section is outside an outer boundary (or inside an inner boundary) the section will shut off. A low value will result in very little application outside the boundary. A higher value will result in more application outside the boundary, but will also make the system less susceptible to the effects of GPS drift. The allowable range is 1% to 99%.

Boundary Control operates independently of Overlap Control, and is not affected by Start Early Distance or Stop Late Distance.

Section Control Method is not needed or available in v26 AFS Pro 600 / Pro 700 software.

In v25.* software, Section Control Method allows the operator to select between Basic and Advanced algorithms for automatic section control. Use the "Advanced" Section Control Method for all overlap control, unless directed otherwise by a Case IH service representative.

Bar Distance (Toolbox > Config) is the distance FROM the GPS reference point on the vehicle TO the seed drop point on the planter. It should be measured horizontally, on the ground, at the tractor centerline, with the planter in planting position.

The GPS reference point will vary depending on the vehicle model and the GPS receiver offsets entered in the Toolbox > GPS Setup screen. Refer to your AFS Pro 600 / Pro 700 Operator's Manual for Precision Farming and Framework Software for more information.

Product Delay (Work Condition > Controller Setup) is the amount of time that elapses between the operator starting the product drives and the product actually hitting the ground. Refer to the Quick Reference Cards available on the downloads page for information on how to determine Product Delay.

Start Early Distance (previously called Lead Distance) is the distance used to start the planter when exiting an overlap area. This distance can be adjusted to ensure that the planter turns on at the appropriate time to prevent overlaps or skips when leaving a previously-planted area (such as a headland). If your planter is starting BEFORE leaving overlap, decrease the Start Early Distance by the distance between the start and the overlap. If your planter is starting AFTER leaving the overlap area, increase the Start Early Distance by the distance between the start and the overlap.

Stop Late Distance (previously called Lag Distance) is the distance used to stop the planter when entering an overlap area. This distance can be adjusted to ensure that the planter turns off at the appropriate time to prevent overlaps or skips when entering a previously-planted area (such as a headland). If your planter is stopping BEFORE entering the overlap area, increase the Stop Late Distance by the distance between the stop and the overlap. If your planter is stopping AFTER entering the overlap area, decrease the Stop Late Distance by the distance between the overlap and the stopping point.

The allowable range for Start Early and Stop Late Distance is 0ft to 25ft.

Start Early Distance and Stop Late Distance work in conjunction with Bar Distance (the distance from the GPS receiver reference point to the seed tube) and Product Delay (the elapsed time between the "plant" command from the display, and when seed actually hits the ground). Both Bar Distance and Product Delay must be set correctly to ensure that the Start Early and Stop Late Distance values work properly. Start Early and Stop Late distances should only be adjusted to fine-tune performance after configuring Bar Distance and Product Delay.

Your local Case IH dealer or the AFS Customer Support Center can assist you with configuring your planter.