Siemens SIPART Series Operating Instructions Manual page 180

Parameterizing/addressing
9.4 Description of parameters
Set the sub-parameters "A1" to "A5" as per your requirements. Then start measuring the
reference stroke time by pressing the
"rEAL" during these 5 seconds.
The device then moves to the configured starting position automatically and executes the
desired stroke. The current position in percent is continuously shown on the display. "inPST"
for "initialize partial stroke test" appears in the lower line of the display. When the test is
completed, the measured reference stroke time in seconds is shown. "Fdini" is displayed if
the starting position cannot be approached or the stroke target cannot be achieved. "Fdini"
stands for "failed PST initialization".
The factory setting is "NOINI".
A7.FACT1 - factor 1
Use this sub-parameter to set the factor for the formation of limit threshold 1. Set the factor in
a range from "0.1" to "100.0". The limit threshold is the product of the reference stroke time
and "A7.FACT1". The process to determine the reference stroke time is described under
"A6.PSTIN".
The threshold 1 error message is displayed when the limit threshold 1 is exceeded. The
procedure to activate and display this error message is described in the "XDIAG" parameter.
The factory setting is "1.5".
A8.FACT2 - factor 2
Use this sub-parameter to set the factor for the formation of limit threshold 2. Set the factor in
a range from "0.1" to "100.0". The limit threshold is the product of the reference stroke time
and "A8.FACT2". The process to determine the reference stroke time is described under
"A6.PSTIN".
The threshold 2 error message is displayed when the limit threshold 2 is exceeded. The
procedure to activate and display this error message is described in the "XDIAG" parameter.
The factory setting is "3.0".
A9.FACT3 - factor 3
Use this sub-parameter to set the factor for the formation of limit threshold 3. Set the factor in
a range from "0.1" to "100.0". The limit threshold is the product of the reference stroke time
and "A9.FACT3". The process to determine the reference stroke time is described under
"A6.PSTIN".
The threshold 3 error message is displayed when the limit threshold 3 is exceeded. The
procedure to activate and display this error message is described in the "XDIAG" parameter.
If the time threshold is exceeded, the control signal of the actuator is simultaneously
cancelled to prevent a sticky or rusty valve, if any, from breaking off and overshooting.
The partial stroke test is then interrupted temporarily, a threshold 3 error message is
reported, and the actuator is moved back to its starting position.
The factory setting is "5.0".
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button for at least 5 seconds. The display shows
Operating Instructions, 10/2013, A5E00074631-11
SIPART PS2 with and without HART