Siemens SIPART PS2 Operating Instructions Manual page 252

Electropneumatic positioner with profibus pa
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Diagnostics and troubleshooting
12.1 Output of system messages in the display
Message
Line
Up
Down
RANGE
X
ok
x
RUN 1 /
X
ERROR
d___U
X
SEt
X
MIDDL
X
UP >
X
90_95
X
U-d>
X
252
Meaning/cause
The position of the stop or the measuring
span is beyond the permissible measuring
range only in case of a manual initialization
The permissible measuring range of end po‐
sitions is achieved only in case of a manual
initialization
Error in "RUN 1", no movement e.g. due to the
lack of compressed air
Bar graph display of the zero point is outside
the tolerance range
Friction clutch was moved; "P 50.0" not dis‐
played when the lever is horizontal
"UP" tolerance range was exceeded or the in‐
active zone of the potentiometer was covered.
Possible only in case of part-turn actuators:
actuator travel is not in the range between 90
and 95%
"Up-Down" measuring span was undershot
Measure
● Approach a different position of the stop
using
or
button and acknowledge
using
button.
● Move the friction clutch until "ok" is
displayed, and then acknowledge with
the
button.
● Terminate the initialization process using
the
button, switch to the P-manual
mode, and correct the actuator travel and
the position displacement sensor.
● Use the
button to acknowledge; the
remaining steps ("RUN 1" to "FINSH") run
automatically.
Possible causes:
● Insufficient supply of compressed air.
● Restrictor(s) blocked.
● Actuator does not move freely.
Measures:
1. Eliminate possible causes.
2. Restart initialization.
1. Set between "P 4.0" and "P 9.9" ( >0< )
using friction clutch.
2. Continue using
or
1. In the case of linear actuators, use the
or
button to bring the lever
perpendicular to the spindle.
2. Briefly acknowledge using
(initialization is continued).
1. Increase the effective lever length of the
linear actuators or switch the transmission
ratio selector to 90°.
2. Briefly acknowledge using
3. Restart initialization.
1. Use the
or
button to move it in the
range between 90 and 95%.
2. Briefly acknowledge using
1. Decrease the effective lever length of the
linear actuators or switch the transmission
ratio selector to 33°.
2. Briefly acknowledge using
3. Restart initialization.
SIPART PS2 with PROFIBUS PA
Operating Instructions, 05/2019, A5E00127926-AC
button.
button
button.
button.
button.

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