•
Steering device closed-loop proportional gain
•
Spool control in the valve dead-band region
•
Program transition criteria for a steering device
•
Magnetic bridge enable/disable control for a steering device
An overview of all steering device parameters can be found in appendix
on
page 114.
Program Parameters
A number of user programs are available to each steering device. This enables programming flexible
functionality for each steering device such as:
•
Possibility to adapt the steering system to the working situation.
•
Personalized steering behavior (novice or expert level)
•
Customized/variable steering ratio/gain settings
•
Invert flow direction for e.g. backward steering
A number of programs are allocated to each steering device as shown in the table below. Each program
has a unique number which is used for requesting a new program from the MMI.
Number of programs per steering device
Steering device
Number of programs
Program number
Steering wheel sensor (SASA)
10
0-9
High priority steering device
5
20-24
Low priority steering device
5
25-29
High priority set-point controller
5
30-34
Example on program layout for high priority steering device
Set -point
to
Flow command
Ramp Limitation
Cushion stop
flow command
to
spool position
Program page
Program=20
Program=21
Program=22
Program=23
Program=24
Active program for high
priority steering device
Program selection
Program sub-sets
At power-up, the lowest program number for each device is applied i.e. program 0 for steering wheel
sensor, program 20 for high priority steering device etc.
The program for a steering device becomes active as soon as the steering device is activated i.e. meets
the set-up criteria for when the PVED-CL shall regard a steering device as ‘being used for steering’.
An overview of all program parameters can be found in appendix
on page 112.
Indexing Parameter
Each parameter has a unique index. Only one parameter can be accessed at a time. The system parameter
and steering device parameter indices are explicit and can be found in
Operation Manual
PVED-CL Controller for Electro-Hydraulic Steering, Version 1.38
Configuration and Adjustment
©
Danfoss | May 2016
11025583 | AQ00000216en-US0302 | 17