Behaviour In Response To Channel Faults - Festo CPX-F8DE-P Manual

5. Diagnostics and error handling

5.3.2 Behaviour in response to channel faults

Status Channel
LED error LED
LED flashes
slowly
LED
flashes once
off
Festo P.BE-CPX-F8DE-P-E N en 1610a English
Module Error Error description
error no.
LED
1)
2 – Short circuit 24 V on input
– No cycle
– Incorrect connection
2 – FE or 0 V connected to T1,
1)
3 – No signal
– Antivalent signal not
– FE connected to T1, T3, T5
1)
29 – Fault in the
1)
55 Function mode-dependent
fault in process value
– Discrepancy
– No request for standby
– Unauthorized logical value
– Incorrect connection block
– FE connected to T1, T3, T5
– Loose contact on
signal
technology
T3, T5 or T7
present prior to enabling of
the safety function
or T7
parameterization
position on the application
installed
or T7
two-channel sensors
Remedy
Check sensors and
•
wiring
Adapt connection
•
technology or
function mode
Check sensors and
•
wiring
Check signal form at
•
module input
Check sensors and
•
wiring
Check normally
•
closed contact of the
sensor
Request antivalent
•
sensor signal
Set permitted mode
•
Assure correct
•
logical and
time-related
reporting values of
sensors
Check sensors and
•
wiring
5-11