Error
code
Three-
stage
Event Parameter setting Error message disappears
when
Possible causes
9 Yes Case 1: Reference
stroke time for par‐
tial stroke test is ex‐
ceeded.
A. PST≠OFF Case 1: ... a partial stroke test
is successfully executed with‐
in the reference stroke time or
the function is deactivated.
Case 1: Process valve is stuck
or rusted. Increased stiction.
Case 2: Start posi‐
tion outside the
start tolerance
Case 2: Move the actuator into
the range of the PST start tol‐
erance. Or increase the PST
start tolerance until the actua‐
tor (PST start position) is with‐
in the PST start tolerance.
Start the partial stroke test
again.
Case 2: Valve is present in the
safety position.
10 Yes Deviation from ex‐
pected dynamic
control valve be‐
havior
b. DEVI≠OFF ... the position is again in a
narrow corridor between the
setpoint and the model, or the
function is deactivated.
Actuator fault, process valve
fault, process valve jams, in‐
creased stiction, decreased
supply pressure PZ
11 Yes Valve leakage C. LEAK≠OFF ... the valve leakage has been
remedied or the function is de‐
activated.
Pneumatic leakage
12 Yes Stiction limit (slip‐
stick) exceeded
d. STIC≠OFF ... Slipjumps can no longer be
detected, or the function is de‐
activated.
Increased stiction, process
valve no longer moves
smoothly but in jerky motion.
13 Yes Temperature un‐
dershot
H. TMIN≠OFF ... the low temperature thresh‐
olds are no longer undershot.
Ambient temperature too low
14 Yes Temperature over‐
shot
J. TMAX≠OFF ... the high thresholds are no
longer overshot.
Ambient temperature too high
15 Yes Position average
deviates from the
reference value
P. PAVG≠OFF ... the average position value
calculated after a comparison
interval is again within the
thresholds for the reference
value, or the function is deac‐
tivated.
In the last comparison inter‐
val, the process valve charac‐
teristic was changed so signif‐
icantly that a deviating aver‐
age value of position was cal‐
culated.
16 No Partial stroke test
is to be carried out
with non-plausible
parameter values
A. PST≠OFF the parameter values entered
in A1.STPOS, A3.STRKH and
A4.STRKD are plausible.
Parameters for partial stroke
test are non-plausible
17 No Pressure sensor
module defective
U. PRES≠OFF ... the device is restarted with
the functioning pressure sen‐
sor module or the pressure
sensor module is deactivated.
18 No Value below sup‐
ply pressure PZ
low limit
U. PRES≠OFF ... the supply pressure PZ is
higher than the limit value in
U2.PZLIM including the hyste‐
resis in U3.PZHYS
Supply pressure PZ is too low
19 No Supply pressure
PZ outside of spec‐
ification
U. PRES≠OFF ... the supply pressure PZ is
within the positioner specifica‐
tion of 1.4 bar to 7.0 bar in‐
cluding the hysteresis in
U3.PZHYS.
Supply pressure PZ too high
or too low
Diagnostics and troubleshooting
11.3 Online diagnostics
SIPART PS2 with 4 to 20 mA/HART
230 Operating Instructions, 11/2019, A5E00074631-AE
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