Festo CPX-AB Series Electronic Manual page 80

2. Analogue input module CPX−2AE−U−I
Error LED Sequence
(red)
ON
OFF
LED is out
ON
OFF
LED lights up
ON
OFF
1 flash
LED flashes
ON
OFF
2 flashes
1)
The number of flash pulses indicates the input channel concerned.
1 flash = channel 0 (or both channels)
2 flashes = channel 1
Tab. 2/22: Error LED of analogue input modules
2−36
Error LED
The red error LED indicates a module fault depending on the
parametrizing (short circuit or overload of the sensor supply,
wire fracture or parametrizing fault).
Status
Faultless operation
Fault short circuit/overload
Short circuit/overload in sensor
supply (V
EL/SEN
or
Module defective
Wire fracture at current input
< 2.0 mA
I
IN
1) or
Lower limit exceeded
Input signal is less than the
parametrized limit
or
Upper limit exceeded Upper limit exceeded
Input signal is greater than the
parametrized limit
or
1)
Fault in parametrizing
Parameter data format
Parameter filter measured value
Parameter lower limit
Parameter upper limit
).
Fault Fault
number treatment
None
2 See section
2.5.1, Tab. 2/21
15 Check and, if
necessary,
replace compo
nent
3 See section
2.5.1, Tab. 2/21
9
10 10
21
23
24
25
Festo P.BE−CPX−AX−EN en 0503b