Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
0.0 Hz / real32IRcompensation (i.e. output voltage boost) can be used
in step-up applications to compensate for resistive
losses in the step-up transformer, cabling and motor.
As voltage cannot be fed through a step-up transformer
at 0 %, a specific type of IR compensation should be
used.
This parameter adds a frequency breakpoint for
parameter 97.13 IR compensation as shown.
U / U
N
(%)
f (Hz)
100%
97.13
97.12
Relative output voltage with IR compensation
Field weakening
point
0.0 Hz = Breakpoint disabled.
Note: This parameter cannot be changed while the
drive is running.
IR comp step-up
frequency
97.12
1 = 1 Hz / 10 = 1 HzIR compensation breakpoint for step-up applications.0.0 ... 50.0 Hz
0.00 % / real32Defines the relative output voltage boost at zero speed
(IR compensation). The function is useful in applications
with a high break-away torque where direct torque
control (DTC mode) cannot be applied.
Field weakening
point
Relative output voltage with IR compensation
50% of nominal
frequency
Relative output voltage. No IR
compensation
See also section IR compensation for scalar motor
control (page 88).
IR compensation97.13
530 Parameters
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