Festo IFB11-03, Electronic Manual

Page: 128 / 214

5. Diagnosis and error treatment
5−6
Festo P.BE−VIFB11−03−EN en 0503g
LEDs Sequence Operating status Error treatment
ERROR−LED
ON
OFF
No internal terminal error, no
mounting error None
ON
OFF
Station number set not
permitted, station address
entered twice or maximum
value exceeded
Too many transmission errors
(error counter overrun)
Correct the station address
Check cables/plug connector,
switch valve terminal back on
OFF
ON
Lights up once after switching
on (LED test)
Timeout ended, no valid tele
gram received within timeout
time, bus error, communication
error or communication loss
Possible error during valve test
None
Check connection to PLC
Restart valve test
ON
OFF
Modules not fitted correctly:
More than 12 I/O stages fitted
Max. permissible number of in
puts exceeded
Max. permissible number of
outputs exceeded
Reduce number of
I/O stages
I stages
O stages
ON
OFF
Hardware error Servicing required
OFF
flashes red
flashes green
lights up green lights up red
Fig.5/4: Part 2 LED error messages