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Siemens SIPART PS2 6DR52xx User Manual

Page 99

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Operation

99

SIPART PS2 Manual

A5E00074631--06

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YFCT = ncSLL
This must be adjusted if an NCS is to be connected to a linear ac-

tuator with the position converted by an arm into a part--turn move-

ment.

.

NOTE
After “LWAY, ncSt, --ncSt or ncSL” have been adjusted, the parameter

“3. YWAY” will not be displayed.

Rated angle of rotation of the feedback shaft
In part-turn actuators, an angle of 90° is preset automatically by

1.YFCT = turn (see above). In linear actuators (1.YFCT = WAY) a

value of 33° or 90° can be selected depending on the stroke range:

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33° for strokes ≤ 20 mm

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90° for strokes > 20 mm

When using the lever up to 35 mm, both angles of rotation (33° and

90°) are possible.
The long lever (> 35 mm stroke) is only designed for an angle of

rotation setting of 90°. It is not part of the mounting kit set 6DR4004-8V

but must be ordered separately under order number 6DR4004-8L.

.

NOTE
The setting of the transmission ratio selector on the positioner (see

figure 2-2, page 17 and figure 2-3, page 18) must correspond to the

angle value selected under “2.YAGL”.

Lever arm transmission
Selection of the lever arm range: serves to display the real stroke after

initialization. The use of this parameter is optional. You only need to set

this parameter if you want to have the way in mm displayed at the end

of the initialization.

If the parameter value “oFF” is selected here, the real stroke is not

displayed after initialization.

.

NOTE
The specification “YWAY” must match the mechanical lever arm trans-

mission. The carrier must be set to the value of the actuator stroke,

if this is not scaled to the next highest scaled value.

2.YAGL

3.YWAY

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