Lenze DDS Function library Drive - Manual (Page 90)

2.7.5 Process controller (L_PCTRL)
Function library LenzeDrive.lib
Special functions
2−80
L
LenzeDrive.lib EN 1.7
Parameter codes of the instances
VariableName L_PCTRL1 SettingRange Lenze
nVp C0222 0.1 ... 500.0 1.0
dnTn C0223 20 ... 99999 ms 400
nKd C0224 0.0 ... 5.0 0.0
nVp2Adapt C0325 0.1 ... 500.0 1.0
nVp3Adapt C0326 0.1 ... 500.0 1.0
nSet1Adapt C0328 0.00 ... 100.00 % 0.00
nSet2Adapt C0327 0.00 ... 100.00 % 100.00
byPCharacteristic C0329 0 ... 3 0
dnTir C0332 0.000 ... 999.900 sec 0.000
dnTif C0333 0.000 ... 999.900 sec 0.000
bBiUnipolar C0337 0 ... 1 0
Range of functions
·
Control characteristic
·
Ramp generator
·
Value range of the output signal
·
Evaluation of the output signal
·
Deactivation of the process controller
2.7.5.1 Control characteristic
In the default setting, the PID algorithm is active.
Differential component K
d
You can deactivate the K
d
−component by setting nKd = 0.0. The controller now becomes a
PI−controller (or P−controller if the I−component is also switched off).
Integral−action component I
You can switch off the I−component with
·
bIOff_b = TRUE, or on with
·
bIOff_b = FALSE.
Switching on and off can also be done online. If the I−component is to be switched off permanently,
set bIOff_b to TRUE.
Integral−action time T
n
By using nTn you can set the parameter for the integral−action time.