Lenze DDS Function library Drive - Manual (Page 31)

Function library LenzeDrive.lib
Analog signal processing
2.2.11 Differentiation (L_DT1_)
2−21
L
LenzeDrive.lib EN 1.7
2.2.11 Differentiation (L_DT1_)
This FB differentiates signals. You can use it, for instance, for the acceleration injection (dv/dt).
nIn_a nOut_a
L_DT1_
bySensibility
nGain
nDelayTime
±32767
Fig. 2−21 Differentiation (L_DT1_)
VariableName DataType SignalType VariableType Note
nIn_a Integer analog VAR_INPUT
nOut_a Integer analog VAR_OUTPUT The signal is limited to ±32767.
nGain Integer VAR CONSTANT RETAIN Gain K
nDelayTime Integer VAR CONSTANT RETAIN Delay time T
loss
bySensibility Byte VAR CONSTANT RETAIN Input sensitivity of nIn_a
The FB only evaluates the specified most significant
bits, according to the setting.
Parameter codes of the instances
VariableName L_DT1_1 SettingRange Lenze
nGain C0650 −320.00 ... 320.00 1.00
nDelayTime C0651 0.005 ... 5.000 s 1.000
bySensibility C0653 1 ... 7 1
Function
Selection of the function Function
bySensibility = 1 15 Bit
bySensibility = 2 14 Bit
bySensibility = 3 13 Bit
bySensibility = 4 12 Bit
bySensibility = 5 11 Bit
bySensibility = 6 10 bit
bySensibility = 7 9 Bit
t T
loss
K
Fig. 2−22 Delay time T
loss
of the 1st order differential section