Festo CDVI-DN Series Electronic Manual page 82

3. Diagnosis
Bit Refers to
0 CP..− valve terminal
CP output module in
the extension
1 CP input module
in the extension
2 CP output module
in the extension
3 CP output module
in the extension
4 CP input module
in the extension
5 CP..− valve terminal
6 CDVI base block
CDVI extension block
7 CDVI base block
Tab. 3/6: Table with explanation of the diagnostic information (status byte)
3−12
The following table shows the composition of the diagnostic
information (status byte/diagnostic byte):
Comment in the
EDS file
CP Valve / Output Module
Missing
CP Input Module Missing
Electrical Overload at
CP Output Module
No Power Supply at CP
Output Module
No or Overloaded Sensor
Power Supply
Power Supply at CP
Valve Terminal below
20.4 V
Condition Counter re
ached Preselection
Valve Power Supply at
Main Unit below 21.6 V
Additional information can be found in the appendix B.1.8.
Explanation
Extension block or CP output
module not found
CP connection interrupted at input
module
Short circuit or overload on output
module (see chapter 1)
Load voltage failure at output
module
Failure of operating voltage at input
module or sensors, short
circuit/overload of sensor supply
(see chapter 3.4.2)
Load voltage in valve terminal on
CP string < 20.4 V
Condition monitoring: At least one
valve counter has exceeded the
limit value.
Load voltage of base block < 21.6 V
Festo P.BE−CDVI−DN−EN en 0404NH