TERSUS AG960, Руководство пользователя

Страница: 116 / 168

115 / 167
1200~1500 (or the speed in normal operation), and turn the guide wheel to the middle
position.

Drag the vernier corresponding to the left take-off voltage to 3.0V and left turn of
the guide wheel should be observed (If right turn of guide wheel is observed
when the left take-off voltage is dragged, it means the left and right drive
terminals of hydraulic valve are inversely connected and has to be exchanged and
re-connected)

Drag the vernier corresponding to the right take-off voltage to 3.0V and right turn
of the guide wheel should be observed

Drag the vernier corresponding to the left take-off voltage to 2.9V and left turn of
the guide wheel at a reduced speed should be observed

Drag the vernier corresponding to the right take-off voltage to 2.9V and right turn
of the guide wheel at a reduced speed should be observed

Drag the vernier corresponding to the left take-off voltage to 2.8V and left turn of
the guide wheel at a further reduced speed should be observed

Drag the vernier corresponding to the right take-off voltage to 2.8V and right turn
of the guide wheel at a further reduced speed should be observed
 ……

Repeat the above steps to continuously reduce the value of left & right take-off
voltages and it can be observed that the speed of left or right turn reduces
gradually. When the average speed of the entire process of turning is reduced to
around 1°/s and slow change of angle data can be observed at the same time, the
voltage value can be regarded as the value of corresponding left/right take-off
voltage.
5.5.4.2 Calibration of Steering Sensitivity
The steering sensitivity refers that when the angle of guide wheel changes from a to b
as instructed, the higher the steering sensitivity is, the higher and greater the speed
that the guide wheel turns, but at the same time the guide wheel may failure to stop at
b and even pass b; while the lower the steering sensitivity is, the lower and gentler the
speed that the guide wheel turns, but at the same time the guide wheel may stop when
b is not reached. Therefore, the steering sensitivity must be calibrated so as to make
sure the guide wheel of tractor turns in a rapid, stable and correct way. Based on the
experiences in installation and commissioning, the typical value for the steering
sensitivity is usually 0.15 (i.e. the default value of steering sensitivity that is seen
when open the sub-screen “Steering sensitivity calibration”) and the normal range for
commissioning is usually 0.1~0.4.