Parker 690+ series - Page 141

Programming Your Application 1-133
690+ Series Frequency Inverter
Operation Description
PROFILE SQRT
PROFILE X^1
PROFILE X^2
PROFILE X^3
PROFILE X^4
Profile
0
20
40
60
80
100
120
-5 45 95
Input A
Output
Sqrt
x
Input 2 (Min)
Input 3 (Max)
1
x
2
x
3
x
4
Example : Profile Min = 10, Max = 110
Profile
-60
-40
-20
0
20
40
60
0 50 100 150
Input A
Output
Sqrt
Input 2 (Min)
Input 3 (Max)
x
4
x
3
x
2
x
1
Example : Profile Min = 50, Max = -50
Profile functions convert an input (0-1) to an output with (min) +((max-min)
* fn(input)) where fn() is Sqrt (square root), Linear (X
1
), X
2
, X
3
or X
4
. The
output is clamped between Min and Max. The input is clamped 0-100.
The profiles are calculated from 100 point tables and linearly interpreted
between the points.
PROFILE SQRT
5.0
min)(maxmin xy −+=
PROFILE X^1
xy min)(maxmin −+=
PROFILE X^2
2
min)(maxmin xy −+=
PROFILE X^3
3
min)(maxmin xy −+=
PROFILE X^4
4
min)(maxmin xy −+=
where INPUT A : Input x
INPUT B : Min
INPUT C : Max