Operating instructions

Alarm, error, and system messages
11.2 Diagnosis
SIPART PS2 with and without HART communications
Operating Instructions, 09/2008, A5E00074631-08
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12 PRPST - time since the last partial stroke test
The time in days elapsed since the last partial stroke test is displayed here. In addition, the
following status messages can be displayed:
● notSt - No Test
A manual partial stroke test was not yet executed.
● SdtSt - Stopped Test
The last Partial-Stroke-Test was interrupted.
● FdtSt - Failed Test
The last partial stroke test has failed.
13 NXPST - time until the next partial stroke test
The time in days until the next partial stroke test is displayed here. The conditions are that
the partial stroke test is activated in the configuration menu and a test interval is set. If one of
the above-mentioned conditions is not met, "OFF" is shown on the digital display.
14 DEVI - general control valve fault
This value provides information about the present dynamically determined deviation from the
model response. If the underlying function is deactivated in the configuration menu, "OFF" is
displayed.
15 ONLK - pneumatic leakage
The current leakage indicator is displayed here. If the leakage detection is deactivated in the
configuration menu, "OFF" is displayed.
16 STIC - static friction/slipstick effect
The filtered value of the step height based on static friction is displayed here in percent. If the
function is deactivated in the configuration menu, "OFF" is displayed.
17 ZERO - zero point displacement
Display of the current displacement of the lower hard end stop with respect to its initialization
value. The activation of the "down tight closing function" is a condition to determine this.
Activate using the "YCLS" parameter in the configuration menu. If the underlying function is
deactivated in the configuration menu, "OFF" is displayed.
18 OPEN - displacement of upper end stop
Display of the current displacement of the upper hard end stop with respect to its initialization
value. The activation of the "up tight closing function" is a condition to determine this.
Activate using the "YCLS" parameter in the configuration menu. If the underlying function is
deactivated in the configuration menu, "OFF" is displayed.