Festo CPA VI Series Manual page 77

4. Commissioning
External Pressure
auxiliary pilot increase in
air complete
supply
Branched after the slow
safety start-up
valve
Branched in front slow
of the safety
start-up valve
Tab. 4/3: Effects of slow start-up pressurization
Carrying out the test
Festo P.BE-CPA-EN en 0207c
The table below shows the effects of slow start-up pressuriza-
tion when there are electric signals.
Pressure
increase in the
auxiliary pilot
air (12/14)
slow
fast
Proceed as follows:
1. Switch on the compressed air supply.
2. Check the functioning and operation of each individual
valve-cylinder combination by actuating the manual override
as shown in the following diagrams.
Please note
Incorrect actuation of the non-locking manual override can
lead to malfunctioning or damage to the manual override.
Use a blunt pencil for actuating the non-locking manual
•
override.
Actuate the manual override only with max. 30 N.
•
3. In the case of the CPA valve terminal with locking manual
override: After testing the valves, make sure that all man-
ual override actuations are in their basic positions.
4. Switch off the compressed air supply after checking the
valves.
Time point Movement of
when a valve the cylinder
switches
after pressure fast
increase with (1)
before pressure slow
increase with (1)
4-11