Ydir' Direction Of Manipulated Variable For Display And Position Feedback; Ycls' Tight Closing With Manipulated Variable; Ycdo' Lower Value For Tight Closing / '41.Ycup' Upper Value For Tight Closing - Siemens 6DR50 Series Operating Instructions Manual

Parameterizing/addressing
9.4 Description of parameters
9.4.2.10

'38.YDIR' Direction of manipulated variable for display and position feedback

Possible settings:
Purpose:
Factory setting:
9.4.2.11

'39.YCLS' Tight closing with manipulated variable

Possible settings:
Purpose:
Factory setting:
See the figure in the description of the "'37.YNRM' Standardization of manipulated variable
(Page 164)" parameter and the figure in the description of the "'13.SL0' ... '33.SL20' Setpoint
turning point (Page 162)" parameter.
Note
Activated tight closing function
If the tight closing function is activated, and if parameter "49.
control deviation in the respective overflow direction is switched off. In this case, parameter
"YCDO: < 0%" and parameter "YCUP: > 100%". This functionality is especially
advantageous for valves with soft seats. For long-term monitoring of the end stop positions,
we recommend that you activate the "F. ZERO" and "G.
9.4.2.12

'40.YCDO' Lower value for tight closing / '41.YCUP' Upper value for tight closing

Adjustment range:
Purpose:
Factory setting:
166
• riSE
• FALL
This parameter is used to set the direction of action of the display
and the position feedback I
riSE
• no
• uP
• do
• uP do
This parameter is used to move the valve into its seat with the
maximum force of the actuator (permanent contact of the piezo
valves). The tight closing function is activated on one side or for
both end positions. The parameter "39.YCLS" becomes effective if
the effective setpoint is below the parameter "40.YCDO" or above
the parameter "41.YCUP".
no
0.0 ... 100.0
These parameters are used to set the values for "Lower value for
tight closing " (YCDO) and "Upper value for tight closing" (YCUP)
in %.
With "YCDO": 0.5
. The direction can be rising or falling.
Y
is LIM", monitoring of the
OPEN" parameters.
With "YCUP": 99.5
SIPART PS2 with and without HART
Operating Instructions, 09/2014, A5E00074631-12