Festo CPX-CTEL-4-M12-5POL, Description

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2 System overview, CTEL system
14 Festo – P.BE-CPX-CTEL-EN – 1601b – English
LED Significance Behaviour
Off CPX system-internal communication OK
Lights up red Several causes are possible:
– CPX system starts momentarily, display then turns off
– General fault
X1 … X4 Off No connection to a device
Lights up green Device connected, communication OK
Flashes green Several causes are possible:
– Connection established to the device, diagnostics running
– I/O length of the recognised device is too large
Lights up red Device error. Several causes are possible:
– Connection to the device interrupted
– Error in the I-Port communication
Flashes red Compatibility error. Several causes are possible:
– An incompatible device is connected to the corresponding
I-Port.
– The corresponding port is deactivated, but a connected
device is recognised.
All four LEDs flashing
red
Configuration error. Several causes are possible:
– Invalid configuration (e.g. through exceeding of the available
address space)
– Device has been replaced by another device type
Tab. 2.3
Monitoring of the load voltage U
VAL
(PL) takes place in the devices and is passed on to the
CTEL master module.
Since all connected devices use this LED, the display of an error has priority over the dis­
play “OK” (LED illuminated green).
The I-Port at which the error has occurred can be determined through the FMT/MMI using
the diagnostic messages.
Information on eliminating the displayed errors:
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5.2.2 Diagnostic/error messages by CPX error numbers.