Festo CPX-AB Series Electronic Manual page 154

4. Analogue input module CPX−4AE−T
Error LED Module
1)
channel x fault LED
LED is out LED is out
LED lights up
LED lights up
LED flashes
LED lights up
LED lights up LED flashes
LED flashes
LED is out
1)
One LED per channel
Tab. 4/21: Error LEDs of the temperature module CPX−4AE−T
4−32
Error LEDs
The red error LEDs indicate channel or module faults depend
ing on the parametrizing.
Installation
Faultless operation
Fault short circuit channel x
or
Fault wire fracture channel x
Limit value not reached
Set limit value not reached or
sensor temperature range not
reached
or
Limit value exceeded
Set limit value exceeded or
sensor temperature range
exceeded
Parametrizing faults
Servicing required
Fault Fault treatment
number
None
2 Eliminate short
circuit or check
connected sensors
3 Check and, if
necessary, replace
the cable and
connected sensors.
9 See section 4.5.1,
Tab. 4/19
10
29 See section 4.5.1,
Tab. 4/20
255 Replace module
Festo P.BE−CPX−AX−EN en 0503b