PMA KS 98, Manual

Page: 39 / 246

11 Trigonometric functions
11.1 SIN (sinus function)
y x
1
sin 1) =
(
The function provides the sinus of the input value, i.e.
x1
is the angle the sinus of which is calculated.
Parameter
Select
is used to adjust, if the angle is provided in degree of angle [°] or in radian.
The calculation clarity can be reached by limiting the input signal (e.g. to the 1st or 4th quadrant
(
_
90° /
_
ó
/
2
)). Internal limiting is not provided. If input value
x1
is out of the range in which the sinus function can
still provide purposeful values, output
y1
is set to 1,5
w
10
37
.
Example degree of angle:
y1
= sin(
x1
)
x1
= 30°
=
y1
= 0,5
Example radian:
y1
= sin(
x1
)
x1
= 90rad
=
y1
= 0,89399666
Parameter Description Controller display
Select
Unit: degree of angle (default)
Ang. deg
Unit: radian
Radian
1 rad = 180°/
ó
= 57,296°
1 ° =
ó /180°
= 0,017453 rad
Control with the pocket calculator:
The function for the calculation in "rad" with the pocket calculator is limited to e.g. ±8
ó
.
r
90/
ó = 28,6479: sin
( 0,6479
w ó
) = 0,893996664
Also during input in "°" usually a limitation is effective in the pocket calculator (e.g. < 1440°)!
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Trigonometric functions
39 SIN (sinus function)