Festo CPX Electronic Manual page 76

3. Input modules
Error LED Sequence
(red)
ON
OFF
LED is out
ON
OFF
LED lights up
Tab. 3/15: Error LED of input modules
3-20
Status LEDs
There is a green status LED for each input. This LED indicates
the status of the signal at the relevant input. The LEDs indi-
cate the following:
Status LED Sequence
(green)
ON
OFF
LED lights up
ON
OFF
LED is out
Tab. 3/14: Status LED of input modules
Error LED
The red error LED indicates a module fault due to short circuit
or overload of the sensor supply depending on the para-
meterization.
Status
Faultless operation
Short circuit/overload
Short circuit/overload in sensor
supply (V ).
EL/SEN
Status
Logical 1 (signal present)
Logical 0 (no signal)
Error Error
number treatment
0 None
2 See section
3.5.1, Tab. 3/13
Festo P.BE-CPX-EA-EN en 0112NH