Remedial Measures Table 1 - Siemens SIPART PS2 Operating Instructions Manual

Alarm, error, and system messages
10.4 Fault correction
10.4.2

Remedial measures table 1

Fault profile (symptoms)
Positioner remains in "RUN 1".
•
Positioner remains in "RUN 2".
•
Positioner remains in "RUN 3".
•
Positioner remains "RUN 5", does
•
not go up to "FINISH" (waiting time
> 5 min).
Fault table 1
232
Possible cause(s)
Initialization started from the end
•
position and
The response time of a maximum of
•
1 minute was not observed.
Supply air PZ not connected or
•
pressure of supply air PZ too low.
Transmission ratio selector and
•
parameter 2
"YAGL" and the real stroke do not
•
match.
Incorrectly set stroke on the lever.
•
Piezo valve does not activate.
•
Actuator travel time is too high.
•
"Gap" (play) in the positioner - ac-
•
tuator - control valve system
Corrective measures
A waiting time of up to 1 minute is
•
essential.
Do not start initialization from the
•
end position.
Ensure supply air PZ.
•
Check settings: see leaflet: Fig.
•
⑦
"Device view " as well as param-
eters 2 and 3
Check the stroke setting on the
•
lever. See Table 2.
Open the restrictor completely
•
and/or set the pressure PZ (1) to
the highest permissible value.
Use a booster if required.
•
Part-turn actuator: check for the
•
firmness of the grub screw of the
coupling wheel
Linear actuator: check for the firm-
•
ness of the lever on the positioning
shaft.
Correct any other play between the
•
actuator and the control valve.
SIPART PS2 with and without HART
Operating Instructions, 02/2016, A5E00074631-AB