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Chapter 4 Operation and Display
4.5 Self-learning of motor parameters ( when vector control function)
When you select vector control mode without PG, before inverter is running, you
must input nameplate parameters of motors correctly. AC drives will match stan-
dard motor parameters upon the nameplate parameters. Vector control mode
has a strong dependency on motor parameters.To obtain a good control perfor-
mance,you shall get the exact parameters of controlled motors.
The operating steps of motor parameters self-learning as below:
First select operation instruction channel ( F00. 01) as keypad instruction chann-
el. Then input following parameters according to motor’s actual parameters:
F02. 01: Asynchronous motor 1 rated power; F02. 02: Asynchronous motor 1
rated frequency; F02. 03: Asynchronous motor 1 rated speed; F02. 04:
Asynchronous motor 1 rated voltage; F02. 05: Asynchronous motor 1 rated
current.
If motors can be separated with loads totally, please select 2 in F02. 37( dynamic
self- learning), and then press“RUN”on control panel, AC drives will calculate
parameter automatically:
F02. 06: Asynchronous motor 1 stator resistance; F02. 07: Asynchronous motor
1 rotor resistance;
F02. 08: Asynchronous motor 1 stator and rotor leakage inductance; F02. 09:
Asynchronous motor 1 stator and rotor mutual inductance;
F02. 10: Asynchronous motor 1 no-load current;
If motors cannot be separated with loads totally, please select 1 in F02. 37(
static self-learning), and then press “RUN” on control panel.
AC drives will measure these three parameters: stator resistance, rotor
resistance and leakage inductive reactance in sequence, don’t measure excludi-
ng mutual inductive reactance and no-load current of motors. Users can calcula-
te these two parameters according to motor nameplate : rated voltage U, rated
current I, rated frequency f and power factor
η.
The computing methods of motor no-load current and motor mutual inductance
are described as below, thereinto, L is motor leakage inductive reactance.
δ
C
h
a
p
te
r
4
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