ABB AV1 Operating Instructions Manual page 112

CAM CHARACTERIZATION
CAM SELECTION
C - 4
100
90
80
70
60
% OF PISTON
50
OR VALVE
TRAVEL
40
30
20
10
0
0 10
Figure C-4. Regulated Device Characteristics
2. Plot the exact control medium versus control signal character-
istic given or desired for the application. This is usually a linear
function (Fig. C-5).
NOTE: If angularity is introduced into the drive linkage, replot the
controlled medium versus piston travel curves. In all cases,
avoid overstroking the final control device.
100
90
80
70
60
% OF
50
SIGNAL
40
30
20
10
0
0 10
Figure C-5. Desired Control
20 30 40 50 60 70
% OF CONTROLLED MEDIUM
20 30 40 50 60 70
% OF CONTROLLED MEDIUM
80 90 100
T00795A
80 90 100
T00794A