Festo CPV -GE-DN2-8 Electronic Manual page 84

3. Diagnosis
LED Sequence
MNS
ON
OFF
ON
MNS
OFF
MNS
ON
OFF
MNS
ON
OFF
MNS
*)
Test algorhythm makes sure that no station numbers are assigned twice on the network. The test
is usually carried out automatically when connection is made to the network.
3-6
Error diagnosis with the LED MNS
Colour Operating status
off – Operating voltage for
electronics not applied
– Dup_MAC_ID test
not yet concluded
flashes – The CPV Direct is not
green assigned to a master
– Dup_MAC_ID test is
concluded, but CPV
Direct has no connection
to the field bus
flashes red – Connection time-out
or
– Fault in master
red – Communication fault
lights up
– Hardware fault cannot
be rectified
red-green – Specific communication
flashes fault
Error treatment
S Check the operating
voltage (pin 1)
S Wait for test to finish.
*)
is
If the LED remains off:
S Station number may be
assigned twice. If necess-
ary, correct station number
S Check the configuration
S The master is possibly not
in the RUN mode: Check
the master status
S Clarify reason for time out
and eliminate
S Check the master status
S Check the baud rate set-
ting and the connection to
the network
S Replace CPV Direct,
Servicing required
S Check the field bus
S Check the master status
Festo P.BE-CP-DN2-EN en 0107NH