Lenze DDS Function library Drive - Manual (Page 91)

Function library LenzeDrive.lib
Special functions
2.7.5 Process controller (L_PCTRL)
2−81
L
LenzeDrive.lib EN 1.7
Gain V
p
The gain V
p
can be set in different ways. By using byPCharacteristic you can select the function you
require.
With nActVp you can display the actual value of the gain V
p
.
byPCharacteristic = 0:
·
The gain V
p
is provided by nVp.
byPCharacteristic = 1:
0 100%
nAdapt_a
V
p
nV
p
nV
p2Adapt
Fig. 2−76 The gain V
p
is provided by nAdapt_a
·
The gain V
p
is provided by nAdapt_a. The input value is led via a linear characteristic. The
slope of the characteristic is fixed by nVp(upper limit) and nVp2Adapt (lower limit). The value in
nVp is valid if the input value = +100 % or −100 % (100 % = 16384). The value in nVp2Adapt is
valid if the input value = 0.
byPCharacteristic = 2:
V
p
nV
p
nV
p2Adapt
nV
p3Adapt
nSet_a
nSet1Adapt nSet2Adapt
Fig. 2−77 The gain V
p
derived from the process setpoint nSet_a
·
The gain V
p
is derived from the process setpoint nSet_a. The setpoint is acquired after the
ramp generator, and calculated from a characteristic with 3 interpolation points.
byPCharacteristic = 3:
·
The gain V
p
is derived from the control difference, and led by the same characteristic
generation as for byPCharacteristic = 2.