Topcon 1004089-01, Tuning Manual

Page: 50 / 58

5.2 Advanced steering tuning
36
5.2. Advanced steering tuning
Note
: These settings are not available on the Universal Terminal.
Contact Topcon technical support for assistance.
To access advanced steering tuning:
1. Select steering Options Menu / Advanced Steering
Tuning .
Note
: DGain and PGain settings are only available if the vehicle
type is a swather/windrower.
Steering tuning settings
Ptime
Sets the prediction time (look ahead) of the steering controller. The
prediction time sets how far along the guideline the vehicle will focus to
stay on the guideline. It is used when the vehicle’s cross track error is
within 25 cm and 5 deg heading. A small adjustment to this value makes a
big difference. The Ptime value is in seconds.
Ptime off
Sets the prediction time (look ahead) of the steering controller. The
prediction time sets how far ahead the vehicle will focus when it is not on
the guideline. It is used when the vehicle’s cross track error is more than 50
cm and 10 deg heading. A small adjustment to this value makes a big
difference.
DGain
Only available if the vehicle has been configured as a swather/windrower.
This setting provides the torque or effort used to adjust the steering.
The correct setting should ensure the system responds quickly to rapidly
changing steering demands while avoiding overshoot.
PGain
Only available if the vehicle has been configured as a swather/windrower.
This setting determines how quickly the steering will react to a required
change in direction.