Festo CTEU-DN, Description, Functions And Maintenance

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3. Preparing for commissioning
3-7
Festo P.BE-CTEU-DN-OP+MAINT-EN en 1206NH
LED display Status and significance
PS
illuminates green:
– Voltage supply (Power System, PS) is OK
– Operating voltage applied
(in the approved range)
– Load voltage present (in the approved range)
1)
X1/X2
illuminates green:
– Device is correctly connected to the bus node
– Internal communication between bus node and
device 1 or device 2 is error free
2)
– Operating and load voltage present (in the ap-
proved range)
1)
MNS flashes green:
– Fieldbus communication present (“online” operat-
ing status), but not configured
(in this case
OK because bus node not configured)
IO is off:
– Commissioning of the bus node and fieldbus
connection not complete or not successful
(
OK because
in this case the bus node is
not yet
configured, i.e. the configuration of the bus node
via the PLC has not yet been executed)
1)
Display depends on whether the connected device monitors the
load voltage and reports to the bus node
2)
Separate accessory with two interfaces for connection of an addi-
tional device required
Tab. 3/10: Status LEDs after switch on – bus node not con-
figured