Festo CPX-2AA-U-I, Electronic Manual

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4. Analogue input module CPX−4AE−T
4−29
Festo P.BE−CPX−AX−EN en 0503b
4.5.1 Error messages of the analogue input modules
An analogue input module can register the following faults:
F au l t num b e r D esc r i p ti o n F au l t t r eatment
2 Shor t ci r cuit /ov e rlo a d
1)
Short circuit in sensor supply (V
EL/SEN
).
(see parameter Diagnostic message in
the event of wire fracture or short
circuit")
·
Eliminate short circuit or check con
nected sensors
The sensor power supply will be
switched on again
aut o matica lly
when the short circuit is eliminated.
3 W i r e fr actu r e
1)
·
Check and, if necessary, replace the
cable and connected sensors
9 L imit v a l ue n o t r eac h e d
1)
Set limit value not reached or sensor
temperature range not reached
(see parameter Limit value monitoring
channel x" or Definition limit value
channel x")
·
Check parametrizing of sensor type
and connection design
·
Check input signal present
·
Check parametrized limit value
·
If necessary, deactivate monitoring
10 L imit v a l ue e x cee d e d
1)
Set limit value exceeded or sensor
temperature range exceeded
(see parameter Limit value monitoring
channel x" or Definition limit value
channel x")
·
Check parametrizing of sensor type
and connection design
·
Check input signal present
·
Check parametrized limit value
·
If necessary, deactivate monitoring
1)
The module will register the appropriate fault depending on the parametrizing. The analogue
input signals will, however, be processed further.
Tab.4/19: Error messages of the input modules part 1