Motor parameter group 05
PARAMETER DESCRIPTION 144
Motor parameter
If induction motor can be completely disconnected from the load, select 05-00(P.301)=1, then press or
on keypad, and inverter will automatically calculate following parameters: 05-07(P.308)~05-11(P.312).
If induction motor cannot be completely separated from the load, select 05-00(P.301)=2, then press or
on keypad, and inverter will automatically calculate following parameters: 05-07(P.308)~05-11(P.312).
Users can also calculate this two parameters according to motor nameplate, parameters motor nameplate used
are: rated voltage U, rated current I, rated frequency f and power factor η
Calculation method of no-load excitation current and mutual inductance of the motor is as follows, where
is
leakage inductance of the motor.
Idling current:
Mutual inductance calculation:
is the idling current,
is mutual inductance,
is leakage inductance.
When performing PM motor parameter auto-tuning, select 05-00(P.301)=8 and press or on keypad
to perform PM motor parameter auto-tuning.Inverter will calculate following parameters: 05-12(P.313)~05-16(P.317).
When performing PM motor Phase Z position auto-tuning function, be sure to make motor fully separated from the
load,and set 05-00(P.301) to 9, then press or on the keypad for inverter to automatically calculate
following parameter:05-16(P.317)
Note: 1. When inverter is used with different size motor, please be sure to set parameters 05-01(P.302)~05-06(P.307).
Vector control relies heavily on motor parameters, so to obtain good control performance, accurate
parameters of the motor controlled must be set.
2. Before executing PM motor phase Z position auto-tuning function, please first execute PM motor parameter
auto-tuning function, then correctly set 09-01(P.350) and 09-02(P.351). If there is motor vibration when tuning,
please decrease 11-00(P.320) value.
3. If one or more parameter values in 05-01(P.302)~05-11(P.312) have been manually modified, reset the inverter to
reload the new parameter values.