Siemens 440 - Manual (Page 90)

Parameter Description Issue 01/06
MICROMASTER 440 Parameter List
90 6SE6400-5BB00-0BP0
ASPmax
100 %
10 V
V
x
100%
%
P0760
P0758
P0757
P0759
P0756 = 4, P0761 = 0
ASPmin
-10 V
4000 h
Index:
P0757[0] : Analog input 1 (ADC 1)
P0757[1] : Analog input 2 (ADC 2)
Note:
The ADC-linear characteristic is described by 4 coordinates, based on a two-point equation:
0757 P 0759 P
0758 P 0760 P
P0757 - x
P0758 - y
−
−
=
For calculations the point-gradient form (offset and gradient) is more advantageous:
0 y x m y + ⋅ =
The transformation between these two forms is given by:
0757 P 0759 P
0758 P 0760 P
m
−
−
=
0757 P 0759 P
0760 P 0757 P 0759 P 0758 P
y 0
−
⋅ − ⋅
=
For scaling of the input the value of y_max and x_min has to be determined. This is done by the following
equations:
0758 P 0760 P
0759 P 0758 P 0757 P 0760 P
x in m
−
⋅ − ⋅
=
0757 P 0759 P
0758 P 0760 P
) x x ( y min max max
−
−
⋅ − =
x
y
1
y
0
x
min
y
2
x
max
y
max
y
m
P0760
P0758
P0757
x
1
P0759
x
2
Notice:
The value x2 of ADC scaling P0759 must be greater than the value x1 of ADC scaling P0757.
P0758[2] Value y1 of ADC scaling Min: -99999.9
CStat: CUT Datatype: Float Unit: % Def: 0.0
P-Group: TERMINAL Active: first confirm QuickComm.: No Max: 99999.9
Sets value of Y1 in [%] as described in P0757 (ADC scaling)
Index:
P0758[0] : Analog input 1 (ADC 1)
P0758[1] : Analog input 2 (ADC 2)
Dependency:
Affects P2000 to P2003 (reference frequency, voltage, current or torque) depending on which setpoint is to
be generated.
Level
2