6 Diagnostics and error handling
78 Festo – P.BE-CPX-CMAX-SYS-EN – en 2017-09b – English
Group 4 – System error A
CPX error group 104 (CPX-MMI: [System error A] )
No. Message Error level Reset type
40 Impermissible control mode with force control F1 R
Cause Force control set for DSMI.
Measure DSMI cannot execute force control commands.
Cause Impermissible control mode set in the RCB1 or CDIR
Measure Correct RCB1 or CDIR.
Cause Continuous setpoint adjustment with force control not possible.
Measure CDIR.CONT must be set to 0.
41 Positioning mode “Relative” not permissible in tracking mode F1 R
Cause Relative bit (CDIR.REL=1) set in tracking mode.
Measure Continuous setpoint specification may only occur absolutely.
42 Reserved control bits set W F
Cause Reserved bit set in CCON, CPOS or CDIR.
Measure Check and correct CCON, CPOS and CDIR.
43 Valve and displacement encoder not connected or communication
faulty
F2 N
Cause Neither a valve nor a displacement encoder were found during initialization.
Measure Check installation.
Cause Communication to the valve and displacement encoder is faulty.
Measure Check cables and components.
Cause Communication faulty, e.g. due to impermissible or damaged components on the
axis string.
Measure Check installation, replace components.
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