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Alarm, fault and system messages
12.3 Online diagnostics
12.3.3
Overview of error codes
Overview of error codes that activate the fault message output
Error
Three-
Event
code
stage
1
No
Remaining control
deviation
2
No
Device not in the
automatic mode
3
No
Binary input BE1
or BE2 active
4
Yes
The limit of stroke
number exceeded
5
Yes
Limit of changes of
direction exceeded
6
Yes
Limit of the lower
hard end stop
exceeded
7
Yes
Limit of the upper
hard end stop
exceeded
8
No
Limit of dead zone
adjustment
exceeded
9
Yes
Partial-Stroke-Test
exceeds the
reference step
time
10
Yes
General control
valve fault
11
Yes
Pneumatic
leakage
12
Yes
Static friction/
Slipstick effect
occurs
232
Parameter setting
Fault message disappears
when
Always active
... the control deviation
disappears again.
**. FCT
... the device is switched to
1)
the automatic mode.
= nA or = nAB
**. FCT
... the binary input is no
1)
longer active.
= nAB and binary
function BIN1 or
BIN2 on "On"
L. STRK≠OFF
... the stroke counter is reset
or the thresholds are
increased
O. DCHG≠OFF
... the counter for changes of
direction is reset or the
thresholds are increased.
F. ZERO≠OFF
... the deviation of the end
**.YCLS = do or up
stop disappears or the device
do
is re-initialized.
G. OPEN≠OFF
... the deviation of the end
**.YCLS
= do or
stop disappears or the device
1)
up do
is re-initialized.
E. DEBA≠OFF
... the limit is undershot again
**.DEBA
= Auto
1)
A. PST≠OFF
... a Partial-Stroke-Test is
successfully executed within
the reference step time or the
function is deactivated.
b. DEVI≠OFF
... the position is again in a
narrow corridor between the
reference variable and the
model, or the function is
deactivated.
C. LEAK≠OFF
... the leakage drops below
the set thresholds, or the
function is deactivated.
d. STIC≠OFF
... Slipjumps can no longer be
detected, or the function is
deactivated.
Possible causes
Compressed air failure,
actuator fault, valve fault (e.g.
blockade).
The device has been
configured or is in the manual
mode
The contact connected to the
binary input was active (e.g.
packing gland monitoring,
overpressure, temperature
switch).
The total path covered by the
actuator exceeds one of the
set thresholds.
The number of changes of
direction exceeds one of the
set thresholds.
Wear and tear of the valve
seat, deposits or foreign
bodies in the valve seat,
mechanical misalignment,
friction clutch moved.
Wear and tear of the valve
seat, deposits or foreign
bodies in the valve seat,
mechanical misalignment,
friction clutch moved.
Increased packing gland
friction, mechanical gap in the
position feedback.
Valve jams or has rusted,
increased friction
Actuator fault, valve fault,
valve jams, increased friction,
decreased compressed air
Pneumatic leakage
Increased static friction, valve
no longer moves smoothly,
but with jerks
SIPART PS2 with PROFIBUS communication
Operating Instructions, 09/2007, A5E00127926-07
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