Festo CPX-CMAX - Page 81

6 Diagnostics and error handling
Festo – P.BE-CPX-CMAX-SYS-EN – en 2017-09b – English 81
Group 5 − System error B
CPX error group 105 (CPX-MMI: [System error B] )
No. Reset typeError levelMessage
53 Load voltage overload on the controller F2 F
Cause Short circuit in the cables of the axis string (between controller and valve or valve
and sensor interface).
Measure  Check cables and modules on the axis string (e.g. wire break); replace
defective cables.
Cause Overload on valve outputs.
Measure  Check and correct the circuitry for the outputs.
Cause Defect in the valve.
Measure  Check cables and valve systematically; replace defective components.
Cause Defect in CMAX.
Measure  Check CMAX and exchange if defective.
54 Operating voltage overload on the controller F2 F
Cause Short circuit in the cables of the axis string (between controller and valve or valve
and sensor interface).
Measure  Check cables and modules on the axis string (e.g. wire break); replace
defective cables.
Cause Defect in the CMAX controller
Measure  Check CMAX; replace if defective.
Cause Defect in the valve
Measure  Check cables and valve systematically; replace defective components.
Cause Defect in displacement encoder or sensor interface
Measure  Check cables and displacement encoder or sensor interface systematically.
Replace defective components.
56 Supply pressure too low for homing F1 R
Cause Insufficient working pressure was detected during homing.
Measure  Check and correct operating pressure.
 Check parameterisation of the operating pressure.
57 Time-out diagnostic interface: FCT device control was deactivated W R
Cause Connection between PC and CPX node interrupted.
Measure  Check cables.
Cause Communication breakdown due to FCT
Measure  Restore connection.