Siemens SIPART PS2 6DR50xx Instrucciones de operaciones descargar pdf (Pagina 154)

Parameterizing/addressing

10.4 Description of parameters

SIPART PS2 with and without HART communications

154 Operating Instructions, 09/2007, A5E00074631-07

A1.STPOS - start position

Use this sub-parameter to define the start position of the partial stroke test in percent. Set

the start position in a range from "0.0" to "100.0".

The factory setting is "100.0".

A2.STTOL - start tolerance

Use this sub-parameter to define the start tolerance of the partial stroke test in percent. Set

the start tolerance relative to the start position in a range from "0.1" to "100.0".

Example: You have set 50% as a start position and 2% as a start tolerance. In this case, a

partial stroke test is initiated during operation only between a current position of 48 and 52%.

The factory setting is "2.0".

A3.STEP - step height

Use this sub-parameter to define the step height of the partial stroke test in percent. Set the

step height in a range from "0.1" to "100.0".

The factory setting is "10.0".

A4.STEPD - step direction

Use this sub-parameter to set the step direction of the partial stroke test. The following

parameter values are available:

● "uP" for up

● "do" for down

● "uP do" for up and down

If you select the "uP" parameter value, it leads to the following:

● The actuator moves from the start position to the target position in a controlled manner.

● After reaching the target position, the actuator moves back to the start position in a

controlled manner.

The target position is determined from the start position plus the step height.

The same procedure in the reverse order is applicable for the "do" parameter value.

If you select the "uP do" parameter value, it leads to the following:

● The actuator first moves from its start position to the upper target position in a controlled

manner.

● Then the actuator moves from the upper target position to the lower target position in a

controlled manner.

● After reaching the lower target position, the actuator moves back to the start position in a

controlled manner.

The upper target position is determined from the start position plus the step height. The

lower target position is determined from the start position minus the step height.

The factory setting is "do".

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Siemens SIPART PS2 6DR50xx Instrucciones de operaciones Pagina 154