Operating mode
Vector control
6.8
6.8.2
6.8−8
EDSVF9383V EN 7.1−04/2012
6.8.2 Vector control
Compared to the V/f characteristic control, the vector control serves to
achieve a considerably higher torque and lower current consumption in idle
state.
Note!
ƒ The connected motor may be maximally two power classes
smaller than the motor assigned to the drive controller.
ƒ The motor data identification is essential.
Codes for parameter setting
Code Possible settings IMPORTANT
No. Name Lenze Selection
C0006
Op mode 5
Selection of the operating mode
for the motor control
1 vector ctrl Vector control
without or with
speed feedback
In case of the first selection enter
the motor data and identify them
with C0148.
6.8−8
5 V / f V/f characteristic
control
Commissioning without
identification of the motor data is
possible
l Advantage of identification
with C0148: Improved smooth
running at low speeds
6.8−4
C0021 slipcomp à −20.00 {0.01 %} 20.00 Slip compensation
à Change of C0086, C0087 or
C0089 sets C0021 to the
calculated rated slip of the
motor
l When changing over to the
vector control mode, C0021 is
set to 0
6.11−1
8.2−25
8.2−40
C0075 Vp curr CTRL 0.04 0.00 {0.01 } 0.99 Gain of current controller
l Vector control: Gain of current
controller
l V/f characteristic control:
Maximum current controller
8.2−25
8.2−40
C0076 Tn curr CTRL 10.0 0.1 {0.1 ms} 2000.0 Integral−action time of current
controller
l Vector control: integral−action
time of current controller
l V/f characteristic control:
maximum current controller
l C0076 = 2000 ms: current
controller is switched off
8.2−25
8.2−40
C0077 Ti field CTRL 4.0 0.3 {0.1 ms} 6000.0 Integral−action time of field
controller
l Only active in case of vector
control with feedback
C0081
Mot power à 0.01 {0.01 kW} 500.00 Rated motor power
à Change of C0086 resets value
to factory setting
l Change of C0081 sets C0086 =
0
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