Setting up Compax3 C3F_T40
142 192-121102 N04 June 2008
Direction dependent gain
For differential cylinders, the direction dependence can be compensated via object
gain positive and negative direction.
In the optimization window ⇒ optimization field ⇒ object tree under path
linearization.
Positive direction
Object 2401.4: Direction dependent gain
Object 2401.7: Direction dependent gain (pressure control)
Negative direction
Object 2401.5: Direction dependent gain
Object 2401.8: Direction dependent gain (pressure control)
Attention:
If several valves are used for a drive, the direction dependent gain must be set
individually for each valve.
Optimization of position controller
In this chapter you can read about:
Filter................................................................................................................................. 142
Set control parameters .................................................................................................... 143
Feedforwards (advanced)................................................................................................ 144
Filter
In this chapter you can read about:
Set position (only analog feedback)................................................................................ 142
Set filter for speed- and acceleration actual value.......................................................... 142
Close control loop ............................................................................................................ 143
Depending on the feedback type, the actual signals for position, speed and
acceleration are disturbed with different intensity. A strong noise on the signals
influences the achievable quality of control negatively.
Attention:
Too high filter constants distort the signals and have a negative effect on the
control quality!
Set position (only analog feedback)
In the optimization tree under analog input.
Typical setting value: 7000µs.
Set filter for speed- and acceleration actual value.
In the optimization tree under filter main axis.
Typical setting values for the individual path measurement system:
Type Speed[µs] Acceleration
Analog 7000
EnDat 500
RS422
SSI 1000 ... 7000
Start-Stop 7000