Festo CPA-SC Series, Manual

Page: 100 / 140

4. Commissioning
4−16
Festo P.BE−CPASC−EN en 0808c
4.5 Troubleshooting
4.5.1 Impairment of function
When the compressed air supply is switched on or when the
individual valves are subsequently checked, you can learn
the following about the operating status of the pneumatic
system:
Operating status of the
pneumatic system Fault treatment when the compressed air supply
has been switched off
Air escapes from ...
common line or work line connections
·
Check the tubing fitting
The valve or the pneumatic system ...
does not react as expected
does not react
·
Check the tubing
·
Check the electric cables
·
Bring the locking manual override into the basic
position
·
After switching on again check the operating pressure
(if necessary for each pressure zone) Set operating
pressure in accordance with instructions in chapter 3.
·
With valve terminals which must be operated with
closed−loop regulated external pilot air:
after switching on again, check the pilot pressure
(if necessary, set as a factor of the operating pressure,
see chapter 3)
·
Servicing required
Tab.4/7: Function impairment of the pneumatic system