Festo CTEU-CO, Manual, Functions And Maintenance

Page: 42 / 80

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