Festo CPX DE Series Manual page 86

2. Digital CPX input modules
Fault LED Sequence
(red)
ON
OFF
LED is off
ON
OFF
LED lights
Tab. 2/35: Fault LED of the input modules
2−38
Status LEDs
There is a green status LED for each input. This LED indicates
the status of the signal at the relevant input. This means:
Status LED Sequence
(green)
ON
OFF
LED lights
ON
OFF
LED is off
Tab. 2/34: Status LED of the input modules
Fault LED
The red fault LED indicates a module fault due to short circuit
or overload of the sensor supply depending on the para
meterization.
Status
Faultless operation
Fault short circuit/overload
Short circuit/overload in sensor
supply (V )
EL/SEN
Status
Logical 1 (signal present)
Logical 0 (no signal)
Fault Fault
number treatment
0 None
2 See section
2.5.1, Tab. 2/33
Festo P.BE−CPX−EA−EN en 0804g