Status Display X1-/X2-Leds - Festo CTEU-CO Manual, Functions And Maintenance

2. Diagnosis

2.2.3 Status display X1-/X2-LEDs

1)
X1 or X2 Internal communication between the bus node and device 1 or 2
–
LED Procedure
ON
OFF
LED
illuminates
green
ON
OFF
LED flashes
green
ON
OFF
LED
illuminates red
ON
OFF
LED flashes
red
ON
OFF
LED is off
1)
Separate accessory with two interfaces for connecting another device is required.
Tab. 2/3: Status displays of the device-specific "X1" LED if device 1 is connected and
"X2" if device 2 is connected.
2-6
Status
– Normal operating status
– Device is connected cor-
rectly to the bus node.
– Load voltage applied.
– There is no error.
– Diagnostics is running
and/or diagnostic data
is being transferred.
– Undervoltage of the ad-
ditional power supply.
– Connection between bus
node and device ok
– Device is connected to
the bus node but com-
munication is disrupted.
– An incorrect device has
been connected after
commissioning.
– Incorrect device connec-
ted (device detected
that is not I-Port com-
patible)
– In addition with LED X1:
Error in the bus module
– Connection is being es-
tablished.
– No device is connected
to the bus node
Meaning/error elimination
–
•
Device diagnostics can be read via
fieldbus communication
(if activated via DIL switches on the
bus node)
•
Eliminate undervoltage
•
Check fieldbus: cables, plug
connectors, signal transmission
(error counter overrun)
•
Restart the bus node (by switching
the power off -> on)
•
Use an I-Port compatible device
(e. g. suitable valve terminal) from
Festo
•
If no device is connected, X1 and X2
flash red
–
Festo P.BE-CTEU-CO-OP+MAINT-EN en 1101NH
1)