Programming
© Festo Didactic GmbH & Co. • MPS 49
In the following please find some important informations regarding pneumatic
actuators and their triggering. This informations are basically.
Instructor: In the following exercises, pneumatic working elements are used.
Therefore, a short introduction in these technological features are necessary.
Double-acting cylinders with the ability to work at forward- and backward
movement are pneumatic working elements, which are often used. These cylinders
are mostly triggered by 5/2-way valves. Explain the following three graphics.
• 5 = number of connections (1, 3, 4, 2 and 5)
• 2 = 2 switching positions (2 rectangles)
The connections have the following functions:
1(P) = air connection (supply)
2(B) = output B for backward stroke
3(S) = connection exhaust air of forward stroke
4(A) = output A for forward stroke
5(S) = connection exhaust air of backward stroke
In the following drawing you can find letters in brackets behind the standardized
designation of the connections (1, 3, 4, 2 and 5). These letters are former
designations, one can still find them on old elements.
3(R)
5(S)
1(P)
14
y1
4(A) 2(B)
y2
14
Activation of single/double solenoid valve:
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