Festo IFB05-03 Manual page 100

5. Diagnosis and error treatment
LEDs
green red
(long
out)
out
Fig. 5/4: LED display of operating status (part 2)
5−6
Operating status
modules not fitted correctly
more than 12 I/O modules fitted
This number of I/Os is not sup
ported by the protocol set
module type not permitted
Internal faults of the valve terminal
Short circuit/overload at an electric
output
<21.6 V
V
valves
<10 V
V
outputs
< 10 V
V
sensor
flashes green
Error treatment
Reduce the number of ...
I/O modules
Use only permitted module types
S Eliminate the short circuit
S or replace the fuse
S Check the loading of the power unit
flashes red lights up green lights up red
Festo P.BE−VIFB5−03−EN en 0503e