Offline Leakage Test; Maintenance And Diagnostics - Siemens SIPART PS2 Operating Instructions Manual

Functions/operations using PROFIBUS PA
10.2 Acyclic data transfer
10.2.2.11

Offline leakage test

Application
Use this menu item to open an online dialog in which you can recognize following execution
whether a leakage is present in the actuator or in the piping.
You will also obtain information about the statuses in the diagnostic field 'Leakage test status':
● Not executed (only '-' is shown in the positioner display)
● Running
● Stopped
● Complete
If you execute the test using the 'Start offline leakage test' button in the online dialog, the
leakage is measured at the position at which the positioner is currently present. The measured
leakage [%/min] is subsequently saved in the '11.LEAK' parameter.
A distinction must be made here between the extended diagnostics 'Monitoring pneumatic
leakage C.\\LEAK' and the 'Offline leakage test'. Monitoring is not activated by the 'Offline
leakage test'. A single offline test is executed to check for leakages and save the measured
leakage value [%/min] in the '11.LEAK' parameter.
10.2.2.12

Maintenance and diagnostics

Application
The sub-menu "Maintenance and diagnostics" is only available if the extended diagnostics has
been activated. You can then activate and parameterize the following extended diagnostics
parameters:
● Monitoring the dynamic control valve behavior ''b.\\DEVI'
● Monitoring the pneumatic leakage 'C._LEAK'
● Monitoring the stiction (slipstick) ''d.\\STIC'
● Monitoring the deadband ''E.\\DEBA'
● Monitoring the lower endstop ''F.\\ZERO'
● Monitoring the upper endstop 'G.\\OPEN'
● Monitoring the lower limit temperature ''H.\\TMIN'
● Monitoring the high limit temperature 'J.\\TMAX'
● Monitoring the number of total strokes ''L.\\STRK'
● Monitoring the number of changes in direction ''O.\\DCHG'
● Monitoring the position average value 'P.\\PAVG'
Changes become effective as soon as the Transfer button is pressed.
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SIPART PS2 with PROFIBUS PA
Operating Instructions, 02/2016, A5E00127926-AB