John Deere AUTOTRAC OMPFP11320 User Manual download pdf (Page 57)

GS3 2630 Advanced Settings

CF86321,000027C -19-16MAY11-1/1

Recommended Tuning Settings

Settings Factory Defaults

Min Value Max Value Excessive Wheel

Motion

Aggressive S-ing

Motion

Lazy S-ing Motion

Overall Steering

Sensitivity

70 50 200 100 100 100

Line Sensitivity

Heading

100 50 200 100-Decrease as

necessary

80-Decrease as

necessary (start

here)

100-Increase as

necessary (start

here)

Line Sensitivity

Tracking

100 50 200 100 100 100-Increase as

necessary

Heading Lead 100 50 130 90 90-Decrease as

necessary

Steering

Response Rate

100 50 200 80-Decrease as

necessary (start

here)

100 100-Increase as

necessary

Curve Sensitivity

70 50 200 100 100 100

Acquire

Sensitivity

100 50 200 100 100 100

Settings Wandering S-ing

Motion

Lazy Line

Acquisitions

Aggressive Line

Acquisitions

Lazy Curve Track

Performance

Aggressive Curve

Track Performance

Overall Steering

Sensitivity

100 100 100 100 100

Line Sensitivity

Heading

100-Decrease as

necessary

100 100-Decrease as

necessary

100-Increase as

necessary

100-Decrease as

necessary

Line Sensitivity

Tracking

100-Increase as

necessary

150-Increase as

necessary

100-Decrease as

necessary

100 100

Heading Lead 100-Increase as

necessary (start here)

90 90 90-Increase as

necessary

Steering Response

Rate

100-Increase as

necessary

100 100 100-Increase as

necessary

100

Curve Sensitivity

70 100 100 110-Increase as

necessary (start here)

90-Decrease as

necessary (start here)

Acquire Sensitivity

100 120-Increase as

necessary (start here)

80-Decrease as

necessary (start here)

100 100

Most Common Conditions

1. Excessive Wheel Motion—Adjust Steering Response

Rate rst before making any other adjustments. Turn

down this parameter until an acceptable amount of

wheel motion exists. Although it may be possible for

this parameter to be changed independently, you may

need to increase Line Sensitivity Heading and/or Line

Sensitivity Tracking (lateral) gains to compensate for

the wheel motion decrease. Keep in mind that forcing

this value too low may compromise AutoTrac accuracy

because this responsiveness determines how quickly

the system can compensate for off-track error. The

recommended Steering Wheel Speed setting should

be adjusted until there is slightly less wheel motion

than what is considered excessive by the operator.

2. Aggressive S-ing Motion—The two main

adjustments to address aggressive s-ing motion are

Line Sensitivity Heading and Heading Lead. Start

by increasing Heading Lead to enable the system to

look further ahead when making corrections. If this

is unsuccessful, the likely cause is overaggressive

Line Sensitivity Heading and this gain should then

be reduced. Forcing this gain low may require an

increase in the Line Sensitivity Tracking (Lateral) gain

to maintain the overall system performance at an

acceptable level.

3. Lazy S-ing Motion—This may be the most difcult

situation to address because the sluggish behavior

can be caused by eld conditions or machine setup.

In some cases, tuning the gains may not achieve

the performance desired. Start by increasing Line

Sensitivity Tracking and check performance. If the

system remains sluggish, increase Line Sensitivity

Heading until the system begins to respond more

aggressively. If ne tuning is needed, the Steering

Response Rate can be adjusted accordingly,

increasing this value will make the system more

aggressive.

45-3

090811

PN=57

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John Deere AUTOTRAC OMPFP11320 User Manual Page 57

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