6 Diagnostics and error handling
Festo – P.BE-CPX-CMAX-SYS-EN – en 2017-09b – English 75
Group 3 − Control error
CPX error group 103 (CPX-MMI: [Control error] )
No. Message Error level Reset type
30 Time-out: Target value not reached F1 R
Note The drive did not reach the target tolerance on time (MC monitoring). Record
chaining is cancelled. Can, for instance, occur during positioning or jogging on a
stop within the effective stroke.
Cause Obstacle in the travel range (only position controller).
Measure Remove obstacle or correct target position.
Cause Compressed air not sufficient.
Measure Check supply pressure, check tubing connection, configure message 50 as an
error; enable drive with closed clamping unit only when there is sufficient
supply pressure.
Cause Very strong friction or irregular friction (only position controller).
Measure Increase control amplification.
Cause Mechanical play (only position controller)
Measure Check installation: Load, stability, guides, check play, repeat identification.
Cause System not optimally configured.
Measure Check configuration (valve, payload, base load, mounting position, supply
pressure), increase time-out, increase tolerance.
Cause Modified system behaviour (only position controller).
Measure Repeat identification.
31 No movement after start F1 R
Note Time-out: The drive has moved less than 11 mm within the time-out period.
Cause Pressure could not be built up.
Measure Check supply pressure.
Cause Drive jammed or sluggish.
Measure Check guide and mechanical structure.
Cause Working pressure insufficient to move the entire load.
Measure Set sufficient working pressure and check configuration of the load.
Cause Valve defective.
Measure Check pressure build-up with trace; replace valve if defective.
Cause Faulty tubing connection.
Measure Check tubing connection.
Cause Valves (additional pneumatic circuit) installed between the valve and cylinder are
closed.
Measure Open valves.
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