B.6.1 Proceed As Follows If The Compressed Air Supply Is Unstable: - Festo CPX Series Manual

B. Basic controlling principles

B.6.1 Proceed as follows if the compressed air supply is unstable:

B−24
If your compressed air supply does not reliably fulfil the re
quirements (tolerance of +/− 1 bar in operation), although a
compressed air reservoir has been installed (see CMAX sys
tem description), the maximum values for acceleration and
deceleration ascertained during identification may, under
circumstances, not be reached.
This may result e.g. in overswing, if the supply pressure re
quired for deceleration is not available.
In order to avoid such overstressing, you can reduce the dy
namics of the system. In order to do this proceed as follows:
1. Ascertain the lowest static supply pressure available for
positioning in your compressed air network.
2. Lower the supply pressure statically to this level.
3. Now carry out the dynamic identification travel again.
4. When system identification is concluded, increase the
supply pressure again to the value set in the application
data.
Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH