2. Fitting and pneumatic installation
2−11
Festo P.BE−CPX−CMA X−SYS−EN en 0908NH
Note
If the positioning range of the drive is longer than the
effective stroke of the displacement encoder:
· Limit the positioning range using shock absorbers or
stops, so that the position measuring system covers the
complete possible positioning range. In thi
s way you can
protect the displacement encoder from damage.
External potentiometer position measuring system
If analogue displacement encoders are used (e.g. type
MLO−POT−...), the following applies:
In combination with the CMAX, an electric reserve of ţ 0.3%
of the nomina
l length is required at both end positions (does
not apply for the integrated system in the case of DSMI).
Example:
Nominal length of the displacement encoder:
1000 mm
Electric effective length: Approx. 1006 mm
} Permissible effective path: 0 ... 1000 mm
If the slide of the displacement encoder leaves the
permissible e
ffective path, the CMAX will generate a
corresponding error message. To avoid these error messages,
limit the positioning range so that the slide of the displace
ment encoder
is always within the permissible effective path.
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