Function library, Function blocks – Lenze EVS9332xK User Manual
Page 252
Function library
Function blocks
3.2.68
Speed setpoint conditioning (NSET)
3−224
l
EDSVS9332K−EXT EN 4.0
Priorities:
CINH
NSET−LOAD
NSET−RFG−0
NSET−RFG−STOP
Function
0
0
0
0
RFG follows the input value via the set ramps
0
0
0
1
The value at the output of RFG is frozen
0
0
1
0
RFG decelerates to zero within the set deceleration time
0
0
1
1
0
1
0
0
RFG accepts the value applied to input NSET−SET and passes it to its
output
0
1
0
1
0
1
1
0
0
1
1
1
1
0
0
0
RFG accepts the value applied to input CINH−VAL and passes it to its
output
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
1
1
1
3.2.68.4
S ramp
The linear ramp function generator is connected to a PT1 element. This arrangement implements an
S ramp for an almost jerk−free acceleration and deceleration.
l
The PT1 element is switched on and off via C0134.
l
The time constant is set via C0182.
3.2.68.5
Arithmetic operation
The output value is led to an arithmetic FB. This FB links the main setpoint and the additional setpoint
arithmetically. The arithmetic operation is selected via C0190 (see the following table).
C0190
Function
Example
0
Output = X (Y is not processed)
−
1
Output = X + Y
100 % = 50 % + 50 %
2
Output = X − Y
50 % = 100 % − 50%
3*
Output = X * Y
100 % = 100 % * 100%
4*
Output = X/|Y|
1 % = 100 % / 100%
5
Output = X/(100% − Y)
200 % = 100 % / (100 % − 50 %)
*) Please observe the note for C0190 = 3, 4 in the following chapter