Inovance MD300 Series - Automatic Motor Parameter Tuning

Chapter 4 Operation and Display
-40-
entered until user password is entered
correctly.
To cancel the password protection
function, enter with password and set FP-00
to “0”.
4.5 Automatic Tuning of Motor
Parameters
If selecting vector control operation, the
nameplate parameter of motor must be
correctly entered before the running of the
inverter, and MD300 inverter will select the
matched standard motor parameter according
to nameplate parameter. The vector control
mode is greatly depending on the motor
parameter. To get good control performance,
the parameters of the controlled motor must
be acquired.
The procedures for the automatic tuning
of motor parameters are described below:
Firstly, Set F0-01 to 0: Set the operation
mode to keypad operation
Secondly, input the following parameters
in accordance with the actual motor
parameters:
F1-01: motor rated power
F1-02: motor rated voltage
F1-03: motor rated current
F1-04: motor rated power
F1-05: motor rated rotation speed
If the motor is completely disconnected
from the load, select “2” (complete tuning) in
F1-11, and press RUN key on the keyboard
panel, then the inverter will automatically
calculate the following parameters:
F1-06: stator resistance
F1-07: rotor resistance
F1-08: leakage inductive reactance
F1-09: mutual inductive reactance
F1-10: No-load excitation current
Finally, complete the automatic tuning of
motor parameters.
If the motor cannot be completely
disconnected with the load, select “1” for
F1-11 (static tuning), and then press RUN key
on the keyboard panel.
The inverter measures rotor resistance,
rotor resistance and leakage inductive
reactance in sequence but does not measure
the mutual inductive reactance and no-load
current of the motor, which can be calculated
by the user based on the motor nameplate.
The motor nameplate parameters used in the
calculation include rated voltage U, rated
current l, rated frequency ƒ and power factor
Ș:
The calculation methods of the no-load
current and mutual inductive reactance of the
motor are described below. “L³” refers to
leakage inductive reactance of the motor.
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