Festo VMPA...-FB-EPL Series, Electronic Manual

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3. Overview and connecting technology I/O modules
3−24
Festo P.BE−CPX−EA−EN en 0705f
3.3.1 Fitting the sub−bases
Note
Handle all modules and components of the CPX terminal
with great care. Note especially the following:
·
Screws must be fitted accurately (otherwise threads will
be damaged).
Screws must be fastened at first only by hand. Screws
must be placed so that the self−cutting threads can be
used.
·
The specified torques must be observed.
·
Screw connections must be fitted free of offset and
mechanical tension.
·
Check the seals for damage (IP 65/IP 67).
·
Connecting surfaces must be clean (to ensure sealing
effect, avoid leakage and contact faults).
The screw connection between the sub−base and the mani
fold sub−base is designed to withstand at least 10 fitting/
removal cycles under observance of the instructions.
Observe also the installation instructions supplied with
modules and components ordered at a later stage.
CPX terminals are supplied from the factory completely fitted.
It may be necessary to fit or remove the sub−bases for the
following reasons:
for replacing the connections
to simplify fitting the sensor plugs or cables.
It may be necessary to fit or remove the electronic modules
for the following reasons:
for changing the function of the I/O module (e.g. CPX−8DE
instead of CPX−4DE)
for replacing defective electronic modules.