ABB ACS580 - Page 339

Parameters 335
97.13 IR compensation 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.
See also section IR compensation for scalar motor control on
page 111.
3.50%
0.00…50.00% Voltage boost at zero speed in percent of nominal motor
voltage.
1 = 1%
97.15 Motor model
temperature
adaptation
Enables the motor model temperature adaptation. Estimated
motor temperature can be used to adapt temperature
dependent parameters (e.g. resistances) of motor model.
Disabled
Disabled Temperature adaptation disabled. 0
Estimated
temperature
Temperature adaptation with motor temperature estimate
(parameter 35.01 Motor estimated temperature).
1
97.16 Stator temperature
factor
Tunes the motor temperature dependence of stator
parameters (stator resistance).
50%
0…200% Tuning factor. 1 = 1%
97.17 Rotor temperature
factor
Tunes the motor temperature dependence of rotor
parameters (eg. rotor resistance).
100%
0…200% Tuning factor. 1 = 1%
97.18 Hexagonal field
weakening
Activates or deactivates the hexagonal field weakening. Off
Off Deactivated. Use this for Ex motors. 0
On Activated. 1
97.20 U/F ratio Selects the form for the U/f (voltage to frequency) ratio below
field weakening point. For scalar control only.
Linear
Linear Linear ratio for constant torque applications. 0
Squared 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.
1
No. Name/Value Description Def/FbEq16
U / U
N
(%)
f (Hz)
Field weakening point
Relative output voltage. No
IR compensation.
Relative output voltage. IR
compensation set to 15%.
15%
100%
50% of nominal
frequency
ACS580 FW.book Page 335 Wednesday, September 21, 2016 9:48 PM