9 Electronic Cam
Negative square measure:
(-2*(600-400)/2)=-200
The below diagram is another flying shear application: liquid filling machine. The electronic cam
operation of the example is similar to the above case of flying shear. The only difference is that the
cutter is replaced by the injector. See the simple wiring diagram as below.
SERVO
SERVO
20PM
CAM
X axis
Y axis
Jog
Encoder output
SERVO
SERVO
CAM
Jog
SERVO
SERVO
CAM
Jog
Encoder output
SERVO
SERVO
CAM
Jog
123
SyncOut
Injector
4
Raw Material
Filling machine
PMSoft provides B-Spline function for cam curve setting. B-Spline can smooth the cam curve as well as
the positioning process. By selecting B-Spline as the cam curve, users can reduce the abrasion of the
mechanism and extend its life span. The B-Spline in PMSoft ensures the smoothness and continuity of
DVP-20PM Application Manual
9-63
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