Festo CPX Electronic Manual page 113

5. Diagnosis and error treatment
Faults of fault class 2
No. Handheld display
0 [No error]
1 [General
diagnosis]
2 [Short circuit]
3 [Wire
fracture/idling
current I/O]
4 [Short circuit in
actuator supply]
5 [Undervoltage in
power supply]
6...8 Reserved
9 [Lower limit
exceeded]
10 [Upper limit
exceeded]
11 [Short circuit
valve]
12 Reserved
13 [Wire fracture
(open load)]
14 Reserved
15 [Module/channel
failure]
Festo P.BE−CPX−SYS−EN en 0503b
Operating status
No fault
General diagnosis
(module−specific fault)
Short circuit/overload in sensor
supply or output
Break in wire/idling current
input/output
Failure in load voltage supply
due to short circuit/overload
(on output side)
Undervoltage in the power
supply (on the input side)
Less than rated range
Rated range exceeded
Short circuit at the valve
Wire break at valve (open load)
Module/channel has failed
Fault treatment
See manual for the module
Eliminate short circuit/ overload
(see manual for the module)
Check and, if necessary,
replace the cable and connected
sensors/ actuators
Check connected actuators as
well as their connections
Eliminate undervoltage at system
supply or additional supply (pin
assignment see Tab. 3/4)
Check signal area and
parameterised limit
Check signal area and
parameterised limit
Check valve and pneumatic
interface
Check valve
Check module
5−7