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Auto-tuning
Based on the motor nameplate set the motor rated output power (17-01), motor output rated current
(17-02), motor rated voltage (17-03), motor rated frequency (17-04), motor rated speed (17-05) and
number of motor poles (17-06) to perform an auto-tune.
Automatic tuning mode selection (17-00)
17-00=0: Perform rotational auto-tune (High performance auto-tune)
After executing Rotational auto-tuning (17-00), Excitation current (02-09), Core saturation coefficient
1 (02-10), Core saturation coefficient 2 and Core saturation coefficient 3 will renew the value.
17-00=1: Perform a static non-rotational auto-tune
Motor does not rotate during auto-tuning and this tuning causes lower power at low speed.
After executing Static auto-tuning (17-00=1),
Proportion of motor leakage inductance (02-33) and
Motor slip (02-34) will renew the value.
17-00=2: Perform stator resistance non-rotational auto-tune (V/F mode) when using long motor leads.
This tuning causes lower power at low speed.
After executing Stator resistance measurement (17-00=2), Resistance between wires (02-15) will
renew the value.
17-00=3: Reserved
17-00=4: Loop tuning makes optimization for current loop response to improve the bandwidth of urrent
and torque.
17-00=5: Rotational auto-tuning combination is three-in-one auto-tuning, including loop tuning
(17-00=4), stator resistance measurement (V / F) (17-00=2), and rotation auto-tuning (17-00=0).
17-00=6: Static auto-tuning combination () is three-in-one auto-tuning, including loop tuning (17-00=4),
stator resistance measurement (V / F) (17-00=2) and static auto-tuning (17-00=1).
Motor rated output power (17-01)
Set by inverter capacity (13-00)
Motor rated current (17-02)
Set by inverter capacity (13-00)
Set the range to 10 %~200 % of the inverter rated current.
Motor rated voltage (17-03)
Motor rated frequency (17-04)
Motor rated speed (17-05)
When tuning a special motor (e.g. constant power motor, high-speed spindle motor), with a motor rated
voltage or rated motor frequency that is lower than a standard AC motor, it is necessary to confirm the
motor nameplate information or the motor test report.
Prevent the inverter output voltage from saturation when the motor rated voltage is higher than the inverter
input voltage (see Example 1).
Example 1: Motor rated voltage (440V/60Hz) is higher than the inverter input voltage (380V/50 Hz).
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