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view user manual (pdf) - dyna-flo control valves

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Operation<br />

. NOTE<br />

After ”LWAY, ncSt, --ncSt or ncSL” have been adjusted, both the<br />

following parameters ”2. YAGL” and ”3. YWAY” will not be displayed.<br />

2.YAGL<br />

Rated angle of rotation of the feedback shaft<br />

In rotary actuators, an angle of 90° is preset automatically by 1.YFCT =<br />

turn (see above). In linear actuators (1.YFCT = WAY) a value of 33° or<br />

90° can be selected depending on the stroke range:<br />

S<br />

33° for strokes ≤ 20 mm<br />

S 90° for strokes > 20 mm<br />

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

90°) are possible.<br />

The long lever (> 35 mm stroke) is only designed for an angle of<br />

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

but must be ordered separately under order number 6DR4004-8L.<br />

. NOTE<br />

The setting of the transmission ratio selector on the positioner (see<br />

figure 2-1, page 16 and figure 2-2, page 17) must correspond to the<br />

angle value selected under “2.YAGL”.<br />

3.YWAY<br />

Lever arm transmission<br />

. NOTE<br />

The use of this parameter is optional. You only need to set this<br />

parameter if you want to have the way in mm displayed at the end of<br />

the initialization.<br />

Selection of the lever arm range: serves to display the real stroke after<br />

initialization.<br />

This parameter is only relevant for linear actuator. If the parameter<br />

value ”oFF” is selected here, the real stroke is not displayed after<br />

initialization.<br />

. NOTE<br />

The specification “YWAY” must match the mechanical lever arm transmission.<br />

The carrier must be set to the value of the actuator stroke, if<br />

this is not scaled to the next highest scaled value.<br />

88<br />

SIPART PS2 Manual<br />

A5E00074631-03

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