Festo CPA VI Series Manual page 84

4. Commissioning
1 LED and manual
override for pilot
solenoid 14
2 LED and manual
override for pilot
solenoid 12
Fig. 4/5: Assignment of the LED for the manual override on CPA valve terminals with
IC connection
LED Switching position of the
valve
Yellow out Basic position
*)
Yellow alight – Switch position
or
– Basic position
*) With double-solenoid valves (Ident code J) the LED lights up only when the signal is present.
Tab. 4/8: Meaning of the LED display
4-18
The status of the LED for the manual override on CPA valve
terminals with IC connection is shown in the following dia-
gram:
1
The LED indicates the switching status of the valve solenoid
coils. This is explained in the following table.
Meaning
Logical 0 (no signal)
Logical 1 (signal present)
Logical 1 but:
– operating voltage of outputs below per-
mitted tolerance range (20.4...26.4 V DC)
– compressed air supply not OK
or
– pilot exhaust blocked
or
– servicing required
2
Festo P.BE-CPA-EN en 0207c