Monitoring Wire Fracture/Short Circuit - Festo CPX-AB Series Electronic Manual

4. Analogue input module CPX−4AE−T

4.4.4 Monitoring wire fracture/short circuit

4.4.5 Limit value monitoring by parametrizing
Parametrizing the limit
1)
value monitoring
No diagnosis"
Message if limit value is
not reached"
Message if limit value is
exceeded"
1)
See Tab. 4/11
2)
See Tab. 4/15
Tab. 4/17: Effect of limit value monitoring on the diagnostic messages
4−26
With appropriate parametrizing, a wire fracture (open loop)
and short−circuit monitoring can be activated (see Tab. 4/10).
With the channel−specific parameters Definition limit value"
(parameters 15 ... 22) you can define a limit value for each
channel. With the parameter Limit value monitoring" (para
meter 8), you can define whether a diagnostic message is to
be displayed when the limit value is exceeded or not reached.
Note
If you are using a different temperature sensor from the
Pt 100: Set the sensor used with the parametrizing.
Monitoring of the sensor temperature range functions
correctly as follows:
2)
Set limit value
is not reached
No message
Diagnostic message
fault no. 9
No message
2)
Set limit value
is exceeded
No message
No message
Diagnostic message
fault no. 10
Festo P.BE−CPX−AX−EN en 0503b
Sensor
temperature range
No message
Diagnostic message
If limit value is not
reached 9 reached 9
If limit value is
exceeded 10