REXROTH VT-VRPD-2 Start-Up And Operation page 27

RE 30126-01-B/08.07 | Manual Hydraulics | Bosch Rexroth AG 27/76
Application: Valve control for the 4WRE6 / 4WRE10 3
Curve correction A curve correction can be applied to the Command. We can use either a parameter
called „Gamma" (Type 1) or linearization table (Type 2). Fig. 12 shows the window if 2
is selected from the pull down menu „Type".
Fig. 11 „Command Adjustment" window with Cureve correction Type 2
The Curve correction entry field Type 1 („Gamma") is used to correct a non linear
Curve correction – Type 1
curve of the valve. The values for "Gamma" lie between 0 and 100, whereby a setting
of 100 does not affect the variable and 0 represents the maximum adjustment.
In the following example („Plot Gamma"), 3 curves are shown. The blue curve "LO1"
represents a Gamma entered value of 100, the brown curve „OUT2" is set to the
Gamma entered value 90, and the red curve "OUT1" has a Gamma value of 50.