User guide

4. Faults and diagnostics
4−24
Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH
Fault group 5  system error B
CPX error group 105 (CPX−MMI: [System error B] )
No. Message Cause/description Error handling Type
1)
50 Supply pressure is too
low
2)
Pressure in both cylin
der chambers is
<1.5bar.
· Check the compressed
air supply.
· Wait until cylinder
chambers (poss. via
leakage) are suffi
ciently filled.
· Configure as a
warning.
Level: F2 (W)
Reset: F
Info: x
51 Load voltage of the con
troller outside of the tol
erance range (undervol
tage)
Load voltage < 20 V with
enabled controller or
overload on axis string.
· Check the valve load
supply (V
VAL
).
Level: F2
Reset: F
Info: x
52 Operating voltage of the
controller outside of the
tolerance range (under
voltage)
Operating voltage <18 V
or overload on the axis
string.
· Operating voltage
supply for the elec
tronics/sensors Check
(U
EL/SEN
)
Level: F2
Reset: F
Info: x
53 Load voltage overload
on the controller
Short circuit in the
cables of the axis string
(between controller and
valve or valve and sen
sor interface).
· Check the cables and
modules in the axis
string (e.g. for a cable
breakage), replace if
necessary.
Level: F2
Reset: F
Info: x
Overload on valve out
puts.
· Check and, if necessary,
corr ect the circuitry of
the outputs.
Defect in the valve. · Check the cables and
valves step by step
and exchange, if
necessary.
Defect in the CMAX con
troller.
· Check CMAX, ex
change if necessary.
1)
Level: fault level, see section 4.2.3; (can alternatively be parametrised as a warning or error)
Reset: behaviour upon reset, see section 4.2.4
Info:  = no info; x = additional info, see FCT or section 4.3.3
2)
Enable command, but no supply pressure.