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3. Diagnosis
3.2
Diagnosis with LEDs
The LEDs on the cover of the CPV valve terminal indicate the
operating status of the CPV valve terminal.
1 Module/network
1
status LED (red/
green)
aB Yellow LED row
for pilot solenoid
12
aD Yellow LED row
for pilot solenoid
14
aB
aD
Fig. 3/1: LEDs of the CPV valve terminal with DeviceNet
direct connection
LED test
3-4
When the communication part has been switched on, the
following LED test is carried out:
–
The module/network status LED lights up green for 250 ms
–
The module/network status LED lights up red for 250 ms
Festo P.BE-CP-DN-EN en 0009a