User guide

4. Faults and diagnostics
4−21
Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH
Fault group 4  system error A
CPX error group 104 (CPX−MMI: [System error A] )
No. Message Cause/description Error handling Type
1)
40 Impermissible control
mode with force control
Force control set for
DSMI.
· DSMI cannot execute
force control com
mands.
Level: F1
Reset: R
Info: x
Impermissible control
mode set in the RCB1 or
CDIR
· Correct RCB1 or CDIR.
41 Positioning mode Rela
tive" not permissible in
tracking mode
Relative bit
(CDIR.ABS=1= set in
tracking mode
· Continuous setpoint
specification may
only occur absolutely
Level: F1
Reset: R
Info: 
42 Reserved control bits set Reserved and not used
bit set in the CCON,
CPOS or CDIR.
· Check and correct
CCON, CPOS and
CDIR.
Level: W
Reset: F
Info: x
43 No peripherals present
or axis string communi
cation interrupted
Neither a valve nor a
measuring system were
found during initializ
ation.
· Check installation.
Level: F2
Reset: N
Info: 
Communication with the
valve and the measuring
system faulty.
· Check cables and
components.
Communication faulty,
e.g. due to impermis
sible or damaged com
ponents on the axis
string.
· Check installation
and exchange compo
nents 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