Samson TROVIS 3730-3, Operating Instructions Manual

Page: 121 / 132

EB 8389 EN 121
Appendix
9.2 Error messages and recommended corrective action
Message Possible reasons Recommended action
Status
classifica -
tion Single reset
Diagnostics > Status messages
Control loop (Code 57)
− Actuator is blocked.
− Positioner attachment has
shifted subsequently.
− Insufficient supply pressure
− Check attachment.
− Check supply pressure.
•
[ ]
–
Zero point (Code 58)
−
Mounting arrangement or
linkage has slipped.
−
Valve trim, particularly
with soft seat, is worn.
−
Check valve and position-
er attachment.
−
Calibrate zero.
−
We recommend to re-
initialize the positioner if
zero deviates by more
than 5 %.
•
[ ]
•
Autocorrection (Code 59) Data section error in position-
er. – – •
Fatal error (Code 60) − Error detected in safety-
relevant data. Possible
cause: EMC disturbances.
The valve is moved to fail-safe
position.
– – –
w too small (Code 63) The set point (w) is lower than
3.7 mA.
Check set point (w). If
necessary, restrict lower limit
of current source to ensure
that a current below 3.7 mA
cannot be issued.
•
[ ]
–
Total valve travel exceeded 'Absolute total valve travel'
exceeded 'Total valve travel
limit'. – •
[ ]
–
Temperature exceeded – – •
[ ]
–
Extended diagnosis
(Code 79)
Extended diagnostics
messages generated by
EXPERTplus.
See Diagnosis >
Status messages > Extended.
– –
Reference variable outside
range Set point smaller than 4 mA or
greater than 20 mA. If possible, limit current
source at lower (4 mA) and/
or upper (20 mA) limit.
– –