Siemens SIPART PS2 6DR50xx Instrucciones de operaciones Pagina 189

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Alarm, error, and system messages
11.3 Online diagnostics
SIPART PS2 with and without HART communications
Operating Instructions, 09/2007, A5E00074631-07
189
Error
code
Three-
stage
Event Parameter setting Fault message disappears
when
Possible causes
7 Yes Limit of the upper
hard end stop
exceeded
G. OPEN≠OFF
**.YCLS
1)
= do or
up do
... the deviation of the end
stop disappears or the device
is re-initialized.
Wear and tear of the valve
seat, deposits or foreign
bodies in the valve seat,
mechanical misalignment,
friction clutch moved.
8 No Limit of dead zone
adjustment
exceeded
E. DEBA≠OFF
**.DEBA
1)
= Auto
... the limit is undershot again Increased packing gland
friction, mechanical gap in the
position feedback.
9 Yes Partial-Stroke-Test
exceeds the
reference step
time
A. PST≠OFF ... a Partial-Stroke-Test is
successfully executed within
the reference step time or the
function is deactivated.
Valve jams or has rusted,
increased friction
10 Yes General control
valve fault
b. DEVI≠OFF ... the position is again in a
narrow corridor between the
reference variable and the
model, or the function is
deactivated.
Actuator fault, valve fault,
valve jams, increased friction,
decreased compressed air
11 Yes Pneumatic
leakage
C. LEAK≠OFF ... the leakage drops below
the set thresholds, or the
function is deactivated.
Pneumatic leakage
12 Yes Static friction/
Slipstick effect
occurs
d. STIC≠OFF ... Slipjumps can no longer be
detected, or the function is
deactivated.
Increased static friction, valve
no longer moves smoothly,
but with jerks
13 Yes Temperature
undershot
H. TMIN≠OFF ... the lower temperature
thresholds are no longer
undershot.
Ambient temperature too low
14 Yes Temperature
overshot
J. TMAX≠OFF ... the upper thresholds are
no longer overshot.
Ambient temperature too high
15 Yes Position average
deviates from the
reference value
P. PAVG≠OFF ... the position average
calculated after a comparison
interval is again within the
thresholds for the reference
value, or the function is
deactivated.
In the last comparison
interval, the valve trajectory
was changed so severely that
a deviating position average
was calculated.
1)
Refer to the corresponding parameter descriptions for additional information about parameters.
See also
Overview of parameters 1 to 5 (Page 131)
Overview of parameters 6 to 51 (Page 132)
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