Siemens SIPART Series Operating Instructions Manual page 232

Alarm, error, and system messages
10.4 Fault correction
10.4.6 Remedial measures table 5
Fault profile (symptoms)
Zero point displaces sporadically
•
(> 3%).
The device function has completely
•
failed: No representation on the
display either.
Fault table 5
See also
Repair/Upgrading (Page 233)
230
Possible cause(s)
Impact or shock loads result in
•
accelerations so high that the
friction clutch moves, e.g. due to
"vapor shocks" in vapor lines.
Electrical auxiliary power supply is
•
not adequate.
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.
Remedial measures
Rectify the causes for shock loads.
•
Re-initialize the position controller.
•
Check the electrical auxiliary power
•
supply.
Tighten the screws firmly and
•
secure using sealing wax.
Repair
•
For prevention: Install the positioner
•
on the damping pads.
SIPART PS2 with and without HART
Operating Instructions, 10/2013, A5E00074631-11