Summary Of Diagnostic Possibilities - Festo CPV Series Manual

3. Diagnosis

3.1 Summary of diagnostic possibilities

Module/
network
status LED
Signal status
display
Valve test
Diagnosis via
field bus
CP-DN8 9806NH
The CPV valve terminal offers the following possibilities
of diagnosis and error treatment:
– Diagnosis via the built-in LEDs
- valve terminal status
- valve status display
– Valve test
– Diagnosis via the field bus.
The combination LED for module/network status is a
two-colour LED. This lights up or flashes green, red or
green and red (orange) simultaneously depending on
the operating status of the valve terminal. It indicates
the module status and network status.
There is a yellow LED for each valve solenoid coil. This
shows whether or not the relevant valve solenoid coil is
energized.
An integrated test routine enables the valves to be
automatically switched in cycles.
You can evaluate the Device Failure Table via the user
program.
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