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Note
Activated tight closing function
If the tight closing function is activated, then for parameter "49. LIM" the monitoring of
control deviation is turned off in the appropriate overflow direction. "YCDO: < 0 %" and
"YCUP: > 100 %" are applicable in such a case. This functionality is especially
advantageous for valves with lining. For long-term monitoring of the endstop positions, we
recommend activating the parameters "F. ZERO" and G. OPEN".
9.4.2.19
'50.PRST' Preset
Possible settings:
Purpose:
Description:
Factory setting:
See also
Display of diagnostics values (Page 205)
SIPART PS2 with and without HART
Operating Instructions, 09/2014, A5E00074631-12
• ALL
• Init
• PArA
• diAg
Use this parameter to restore the factory settings for most parame-
ters. The following parameter groups are available:
• ALL: Reset all parameters together which can be reset by "Init",
"PArA" and "diAg".
• Init: Reset initialization parameters "1.YFCT" to "5.INITM".
• PArA: Reset application parameters "6.SCUR" to "49.
• diAg: Reset parameters A to P of the extended diagnostics as
well as parameter "52.XDIAG".
An overview of the parameters and factory settings can be found in
section "Parameter overview (Page 147)".
In order to select one of the parameter groups listed above, repeat-
edly press the
button until the desired setting is output in the
display. Start the function by repeatedly pressing the
until "oCAY" is output in the display. The values of the parameter
group are now the factory settings.
If you wish to use a previously initialized positioner on a different
control valve, set the parameters to the factory settings prior to a
new initialization. To do this, use the "ALL" or "Init" setting.
Restore the factory settings if you have changed several parame-
ters at once without being able to predict their effect and the unde-
sired reactions which may occur as a result. To do this, use the
"ALL" setting.
ALL
Parameterizing/addressing
9.4 Description of parameters
LIM".
button
173
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