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82 | © Danfoss | August 2018
AQ00000211
ENGINEERING TOMORROW
Important
A spool auto-calibration must be executed for effectuating the change in the Valve Calibration Data sector.
In this case the below parameters shall be configured (shown with default values).
P3091 set to -420 for OSPE/EHi or -700 for EHPS, P3093 set to 420 for OSPE/EHi or 700 for EHPS and P3095 set to
25.
9.5.4.1
Fine-tuning of parameters for spool calibration
The following parameters can be tuned when the calibrated dead-band values give, either in Auto-guidance or Fast-steering
mode, a sluggish steering behavior, aggressive steering behavior or simply if the total calibration time is too time-
consuming.
•
Sluggish steering behavior after successful dead-band calibration
The operator should try with a smaller time frame (P3806 and P3808 should be decreased) and the measured
wheel angle distance should be increased (P3804).
•
Aggressive steering behavior after successful dead-band calibration
The operator should try with a larger time frame (P3806 and P3808 should be increased) and the measured wheel
angle distance should be decreased (P3804).
•
Total spool calibration time is to long
The operator should try with a lower vector combination (P3810 and P3811 should be decreased) and the time
frame (delta between P3806 and P3808) and measure wheel angle distance (P3804) should be decreased
percentage-wise, equally.
Important
If WAS interface is selected as NONE then Spool auto-calibration cannot be performed.
Figure 39
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