Siemens SIPART PS2 Series Operating Instructions Manual page 237

Fault profile (symptoms)
Zero point displaces sporadically (> 3%). Impact or shock loads result in acceler‐
The device function has completely
failed: No representation on the display
either.
Pressure sensor module
With diagnostic value "60.PZ
(Page 228)", display shows "99999".
Display shows fault message "17
(Page 234)".
Display shows fault message "18
(Page 234)".
Display shows "HOLd".
Display shows fault message "19
(Page 234)".
SIPART PS2 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E00074631-AE
Possible cause(s)
ations so high that the friction clutch
moves, e.g. due to "vapor shocks" in va‐
por lines.
Electrical auxiliary power is not ade‐
quate.
In case of very high continuous loads
due to vibrations (oscillations):
● Screws of the electrical connecting
terminals may be loosened.
● Electrical connecting terminals
and/or electronic components may
be knocked out.
● Pressure sensor module defective
● Supply pressure undershoots the
lower limit (U2.PZLIM (Page 188)).
● Device is set to "Hold position",
when (U4.PZ_FR) "HOLd" is as‐
signed as error response.
● Supply pressure outside the specifi‐
cation
Diagnostics and troubleshooting
11.4 Fault and remedy
Remedy
● Rectify the causes for shock loads.
● Re-initialize the positioner.
● Check the electrical auxiliary power.
● Tighten the screws firmly and secure
using sealing wax.
● Repair
● For prevention: Install the positioner
on damping pads.
● Replace the pressure sensor mod‐
ule (Page 203)
● Increase the supply pressure until
the limit (U2.PZLIM) incl. hysteresis
(U3.PZHYS) is exceeded.
● Increase the supply pressure until
the limit (U2.PZLIM) incl. hysteresis
(U3.PZHYS) is exceeded.
● Lower the supply pressure until the
limit (U2.PZLIM) incl. hysteresis
(U3.PZHYS) is undershot.
237