4-213
Example 1：
Motor rated voltage (440V/60Hz) is higher than the inverter input voltage (380V/50 Hz).
Output
Voltage
440V
17-03
0
17-04 60Hz
Output
Frequency
Inverter
M
380V/50Hz 440V/60Hz
Motor rated voltage (for auto-tuning operation)
Rated voltage (for motor nameplate)
Rated frequency (for motor nameplate)
Motor rated frequency (for auto-tuning operation)
Figure 4.3.98 Rated voltageand frequency settings
Step 1： Set auto-tuning (17-00), and set motor rated output power (17-01) and the
motor rated current (17-02) by label of the motor.
Step 2： Set the value of motor rated voltage (17-03) =440V by label of the motor.
Step 3： Set the value of motor rated frequency (17-04) =60Hz
Step 4： Set the value of motor rated speed (17-05) 、pole number of motor (17-06)
Step 5： Set the value of motor no-load voltage (17-08) =360V, the set value for torque
control is 20V lower than input voltage.
Step6： Execute auto-tuning. Set auto-tuning (17-10=1) and enter to standby screen. Enter
RUN command to start auto-tuning. The value of motor rated frequency (17-04)
adjusts automatically to the same as the value of base frequency of motor 1.If the
value of maximum output frequency of motor 1(01-02) is different form base
frequency of motor 1 (01-12), the system will adjusts the value of maximum output
frequency of motor 1(01-02) the same as base frequency of motor 1 (01-12)
automatically.
When the inverter input voltage (or frequency) is higher than the motor rated voltage
(or frequency), set the motor rated voltage (17-03) and the motor rated frequency
(17-04) to the rated frequency on the motor nameplate.
Example 2：
The inverter input voltage and frequency (460V/50Hz) are higher than the motor rated voltage and
frequency (380V/33Hz), set 17-03 to 380V (rated motor voltage) and 17-04 to 33Hz (motor rated
frequency).
Rotational Auto-tuning (17-14)
(1) The parameter can be set (17-14) only when rotational auto-tuning (17-00=0) or Rotational
auto-tuning combination (17-00=5).
(2) VF type rotational auto-tuning (17-14=0) applies the standard IM motor that won’t shake
without loading for V/F mode. This function is highly applicable.
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