Diagnosis Of The Field Bus - Festo CP-FB5-E Manual

3. Diagnosis
3.3

Diagnosis of the field bus

Diagnostic bit Meaning
KCP – CP system not yet ready (during starting phase)
– configuration fault;
String LEDs flash / have flashed;
SAVE key has been pressed: new saved configuration larger or smaller than
the current address assignment in the field bus master
V – Failure of operating voltage (pin 2) at CP connection;
val
at least 10 V are required in the CP node
– Lower limit of voltage tolerance ( < 20,4 V)
V
tol
for supplying the CP valves (pin 2) exceeded
V – Common message:
sen
short circuit in sensor voltage supply
V – Common message:
off
failure of operating voltage at output modules
SC/O – Common message:
short circuit / overload at output modules
ACP – Common message:
connection to CP module(s) interrupted (valve terminal, input/output module)
Fig. 3/2: Summary of diagnostic bits
Festo P.BE-CP-FB5-E-EN en 0112a
The following faults are recognized by the CP system:
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