Samson 3761, Mounting And Operating Instructions

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12
EB 8386 EN
Attachment to rotary actuators
N
N
B
I
I
A
N
Pin Starting position N Pin Starting position I
I
N
B
N
I
A
N
I
Pin Starting position N Pin Starting position I
Double-acting actuator with spring return mechanism
Linear cam disc (standard)
Orientation of cam disc when control valve is closed, additionally apply max. signal press. to actuator
Control valve opens counterclockwise
(increasing pressure to y1, decreasing pressure to y2)
Direct operating direction Reverse operating direction
Ref. variable Signal pressure Valve Cam Ref. variable Signal pressure Valve Cam
Increases Output
1
38 to y1
Output 2 38 to y2
Opens A Decreases Output
1
38 to y2
Output 2 38 to y1
Opens B
Control valve opens clockwise (increasing pressure to y2, decreasing pressure to y1)
Direct operating direction Reverse operating direction
Ref. variable Signal pressure Valve Cam Ref. variable Signal pressure Valve Cam
Increases Output 1 38 to y2
Output 2 38 to y1
Opens B Decreases Output 1 38 to y1
Output 2 38 to y2
Opens A
Fig. 6 · Aligning the cam disc for double-acting rotary actuators