4.8 Motor characteristic parameter setting and automatic tuning
When the inverter runs in the "vector control" (P0-03=1) mode, it has a strong de-
pendence on the accurate motor parameters, which is one of the important differ-
ences from the "VF control" (P0-03=2) mode. In order for the inverter to have good
drive performance and operating efficiency, the inverter must obtain the accurate
parameters of the controlled motor.
The required motor parameters are (default motor 1 function code):
4.8.1 Motor parameters to be set
Motor 1
parameters
Parameter Description
Illustrate
P4-01
~
P4-06
Motor rated power/voltage/current/frequency/speed
Model parameters,
manually input
P4-07
~
P4-11
Equivalent stator resistance, inductive reactance,
rotor inductance, etc. inside the motor
Tuning parameters
The methods for the inverter to obtain the internal electrical parameters of the con
-
trolled motor include: dynamic identification, static identification, and manual input
of motor parameters.
4.8.2 Automatic tuning and identification of motor parameters
Ldentification
method
Applicable
Ldentification
effect
No-load
dynamic
identification
Suitable for synchronous motors and asynchronous
motors. Occasions where the motor and the application
system are easily separated
Optimal
On-load
dynamic
identification
Suitable for synchronous motors and asynchronous
motors. Occasions where it is inconvenient to separate
the motor from the application system
Can
Static
identification
It is only suitable for asynchronous motors, where it is
difficult to separate the motor from the load and dynamic
identification is not allowed.
Poor
Enter
parameters
manually
Applies to asynchronous motors only. In the case where
it is difficult to separate the motor from the application
system, copy the parameters of the motor of the same
type that the inverter has successfully identified before
and input it into the corresponding function codes of P4-
01~P4-11
Can
C
h
a
p
te
r
4
Chapter 4 Operation and Display
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