Festo CPX-4AE-4AA-H, Operating Instructions Manual

Page: 47 / 52

Festo — CPX-4AE-4AA-H — 2021-06b
Diagnostics
47
Error
number Error description Error elimination
121 Critical limit according to NAMUR NE43
exceeded
–
Only for signal range 4 … 20 mA
–
Input: I
IN
³
21.00 mA
–
Parameter description è Tab. 18
Description of the “Data format, mon-
itoring according to NAMUR NE43”
module parameter.
–
Check signal range.
–
Re-parameterise with valid parameters.
122 Critical limit according to NAMUR NE43
undershot
–
Only for signal range 4 … 20 mA
–
Input: I
IN
£
3.6 mA
–
Parameter description è Tab. 18
Description of the “Data format, mon-
itoring according to NAMUR NE43”
module parameter.
–
Check signal range.
–
Re-parameterise with valid parameters.
1) The module displays the error depending on the parameterisation. The digital input values are processed again.
2) The diagnostics are output with the first recorded input value and kept until valid input values have been recorded for at least 200
ms.
Tab. 44: Error messages of the analogue module
8.3 LED display
1
2 3
4
Fig. 18: LED display of analogue module
1
Module error display (red LED)
2
Channel error display (red LED)
3
Channel status display of output
4
Channel status display of input
The display of errors can be suppressed during parameterisation è Further information, è Tab. 19
Description of “Monitoring of channel 0 … 3".