Festo PROFIBUD-DP, Elektronics Manual

Page: 56 / 154

1. Installation CPV−DI02 and CPV−CS02
1−42
Festo P.BE−CPV−DI02−EN en 0704NH
1. 9 R e ac ti o n of t h e C PI s y s te m t o f a u l t s in op e r a ti o n
W a r nin g
Undesired activation of actuators
An incorrect status of the valves and outputs can lead to
dangerous situations.
·
Make sure that valves and outputs are put into a safe
state when faults occur.
If there is a fault on the CP string during operation, e.g. due
to cable fracture, etc., this will be displayed on the CPV Direct
by the diagnostic LED of the string extension (
P
). The status
LED on the relevant module goes out. All modules working
without faults remain ready to operate.
Detailed instructions on diagnosing the CPV Direct using the
LEDs can be found in section 3.1.
1.9.1 Eliminating assignment faults
In order to eliminate assignment or connection faults of the
CPI system:
1. Switch off the power supply for the CPV Direct.
2. Restore the saved assignment by connecting the
appropriate CPI/CP modules with the CPV Direct.
3. Switch on the power supply for the CPV Direct again.