Great Plains DICKEY-john Auto Section Control - Manual (Page 33)

OPERATOR’S MANUAL
Auto Section Control System
11001-1561B-201207
FIELD PREPARATION / 31
IMPORTANT FUNCTIONALITY NOTES
The below situations can effect how Run In/Run Out functionality operates
in the field. Take into account the following when determining what values
to enter on the System Setup screen.
• A Run In/Run Out value of “0” turns on and off sections as soon as the
planter rows reach an area equal to 50% of the programmed row
spacing entered on the IntelliAg PDC setup of Row I/O. Example: If the
row spacing is set at 30” a Run In value of “0” will initiate shutoff of the
planter row 15” before reaching the first inner row of the headland. A
Run In value of “15” will initiate shutoff of the planter row at the first
inner row of the headland.
• To ensure the correct Run In/Run Out settings are entered, dig and
locate seed within the furrow and then measure distance from last
seed planted in row to desired shutoff point at headland. Mechanical
delays associated with the planter (chains, drives, hydraulics) can
have a direct impact on the row unit stopped versus the last seed
placed in the furrow.
• A side-to-side overlap adjustment percentage from 50% to 100% can
be changed during operation to increase or decrease the amount of
overlap. The steeper the angle, the greater the overlap percentage
should be to minimize gap.
• Population rate can also affect Run In/Run Out accuracy. This should
be accounted for when determining Run In/Run out values due to
meter speed ramp down time, i.e., higher population requires higher
meter RPM so it can take a fraction of a second longer for seed
placement to stop compared to a lower population and meter speed.
• Do not adjust the GPS lag value to compensate for shutting off and
turning on row units.
• When using a WAAS only signal, that has +/-12” accuracy, GPS
position drift may affect shutoff points. This drift can effect how the
Auto Section Control terminal identifies planter position as it relates to
turning rows on and off outside.
• Rows can unexpectedly turn on or off due to drift while driving or the
inaccuracy of the WAAS signal on pass-to-pass and headlands can
shift in and out over time due to the inaccuracy of the WAAS signal.