Siemens 6DR50 Series Operating Instructions Manual page 227

Error Three- Event
code stage
10 Yes Deviation from
expected dynamic
control valve be-
havior
11 Yes Pneumatic leak-
age limit exceeded
12 Yes Stiction limit (slip-
stick) exceeded
13 Yes Temperature un-
dershot
14 Yes Temperature over-
shot
15 Yes Position average
deviates from the
reference value
16 No Partial stroke test
is to be carried out
with non-plausible
parameter values
Refer to the corresponding parameter descriptions for additional information about parameters
1)
See also
Overview of initialization parameters 1 to 5 (Page 147)
Overview of application parameters 6 to 52 (Page 148)
SIPART PS2 with and without HART
Operating Instructions, 09/2014, A5E00074631-12
Parameter setting Error message disappears
when
... the position is again in a
b. DEVI≠OFF
narrow corridor between the
reference variable and the
model, or the function is de-
activated.
... the leakage drops below
C. LEAK≠OFF
the configured thresholds, or
the function is deactivated.
... Slipjumps can no longer be
d. STIC≠OFF
detected, or the function is
deactivated.
... the low temperature
H. TMIN≠OFF
thresholds are no longer
undershot.
... the high thresholds are no
J. TMAX≠OFF
longer overshot.
... the average value of posi-
P. PAVG≠OFF
tion calculated after a com-
parison interval is again
within the thresholds for the
reference value, or the func-
tion is deactivated.
the parameter values entered
A. PST≠OFF
in A1.STPOS, A3.STRKH
and A4.STRKD are plausible.
Alarm, error, and system messages
10.3 Online diagnostics
Possible causes
Actuator fault, valve fault,
valve jams, increased stiction,
decreased compressed air
Pneumatic leakage
Increased stiction, valve no
longer moves smoothly but in
jerky motion.
Ambient temperature too low
Ambient temperature too high
In the last comparison inter-
val, the valve trajectory was
changed so severely that a
deviating average value of
position was calculated.
Parameters for partial stroke
test are non-plausible
225