ABB ACQ580 Firmware Manual page 294

290 Parameters
No. Name/Value
97.13 IR compensation
0.00...50.00%
97.15 Motor model
temperature
adaptation
Disabled
Estimated
temperature
97.20 U/F ratio
Linear
Squared
Description
Defines the relative output voltage boost at zero speed (IR
compensation). The function is useful in applications with a
high break-away torque where vector control cannot be
applied.
U / U
N
(%)
Relative output voltage. IR
compensation set to 15%.
100%
15%
Field weakening point
50% of nominal
frequency
See also section IR compensation for scalar motor control
page 73.
Voltage boost at zero speed in percent of nominal motor
voltage.
Enables the motor model temperature adaptation. Estimated
motor temperature can be used to adapt temperature
dependent parameters (e.g. resistances) of motor model.
Temperature adaptation disabled.
Temperature adaptation with motor temperature estimate
(parameter 35.01 Motor estimated
Selects the form for the U/f (voltage to frequency) ratio below
field weakening point. For scalar control only.
Note: The U/f function cannot be used with energy
optimization; if 45.11 Energy optimizer
parameter 97.20 U/F ratio
Linear ratio for constant torque applications.
Squared ratio for centrifugal pump and fan applications.
With squared U/f ratio the noise level is lower for most
operating frequencies. Not recommended for permanent
magnet motors.
Relative output voltage. No
IR compensation.
temperature).
is set to Enable,
is ignored.
Def/FbEq16
3.50%
f (Hz)
on
1 = 1%
Disabled
0
1
Squared
0
1