Monitoring Of Dynamic Control Valve Behavior; Monitoring/Compensation Of Pneumatic Leakage; Monitoring Of Stiction (Slipstick); Monitoring The Lower Limit Temperature - Siemens SIPART PS2 Operating Instructions Manual

10.3.4.9

10 Monitoring of dynamic control valve behavior

The monitoring of the operational behavior responds when the actual valve position shifts from
a narrow corridor between the setpoint and the expected position course. In this case, the
deviation between the expected and actual position course is filtered, displayed and compared
with the configured thresholds that are determined from the "b2.LIMIT" limit multiplied by the
factors "b3.FACT1" to "b5.FACT3".
10.3.4.10

11 Monitoring/compensation of pneumatic leakage

This fault message appears if a leakage is present. For additional information, see Monitoring/
compensation of pneumatic leakage 'C.\\LEAK' (Page 174).
10.3.4.11

12 Monitoring of stiction (slipstick)

If the stiction of the control valve increases during operation or if an increasing number of
Slipjumps is detected, "d1.LIMIT" could be exceeded and result in this fault message.
10.3.4.12

13 Monitoring the lower limit temperature

This fault message appears when the lower limit temperature thresholds are undershot.
10.3.4.13

14 Monitoring the upper limit temperature

This fault message appears when the upper limit temperature thresholds are overshot.
10.3.4.14

15 Monitoring the position average value

This fault message appears when a position value calculated after the expiry of a comparison
interval deviates from the reference value by more than the configured thresholds.
10.3.4.15

16 Monitoring the plausibility of values for the partial stroke test

This error message is triggered if, when starting a partial stroke test, the plausibility check of
the "A1.STPOS", "A3.STRKH" and "A4.STRKD" parameters was not successful.
SIPART PS2 with and without HART
Operating Instructions, 05/2017, A5E00074631-AC
Alarm, error, and system messages
10.3 Online diagnostics
219