EM15 User’s Manual
4. Operation and display
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4.4 Password Setting
The frequency inverter provides the user password protection function. When A0-00 is set to a non-zero value, the
value is the user password. The password takes effect after you exit the function code editing status. When you
press "PRG" key, the “------” will be displayed, and you must enter the correct user password to unlock the menu.
To cancel the password protection function, enter with password and set A0-00 to 0.
4.5 Motor parameter auto-tuning
Select vector control running mode, before frequency inverter start to operate, you must accurately write in the
nameplate parameter of motor by keypad. EM15 frequency inverter will match standard motor parameter
according to the nameplate; the vector control mode strongly depended on motor’s parameters, if you want to get
good control performance, then you must let inverter to obtain the exact parameters of controlled motor.
The process of motor auto-tuning is as follows:
Firstly, select command source (b0-02) as keypad command channel. Then write in the actual motor parameters as
the following parameters (according to the nameplate of present motor):
Parameters
d0-00:
Motor Rated Power(kW)
d0-01:
Motor Rated Voltage(V)
d0-02:
Motor Rated Current(A)
d0-03:
Motor Rated Frequency(Hz)
d0-04:
Motor Rated Speed(Rpm)
AC asynchronous motor tuning
If the motor can be disconnected from the load, then please set d0-30 to 2(asynchronous motor dynamic complete
auto-tuning), If the motor cannot be disconnected with the load, then please select d0-30 to 3 (asynchronous motor
static complete auto-tuning), then press the RUN key on the keypad. The frequency inverter will automatically
calculate the following parameters of motor:
Parameters
d0-05:
Stator resistance (asynchronous motor)
d0-06:
Rotor resistance (asynchronous motor)
d0-07:
Leakage inductive reactance(asynchronous motor)
d0-08:
Mutual inductive reactance(asynchronous motor)
d0-09:
No-load current(asynchronous motor)
After finishing motor parameter auto-tuning.
