gefran VDI100 Series Instruction Manual page 254

• Automatic tuning mode selection (17-00)
Rotational auto-tuning (17-00=0) provide higher quality for motors.
After executing Rotational auto-tuning (17-00), Excitation current of motor 1 (02-09), Core saturation coefficient
1 of motor 1(02-10), Core saturation coefficient 2 of motor 1 and Core saturation coefficient 3 of motor 1 (02-
12) will renew the value.
Static auto-tuning (17-00=1) won't rotate the motor while auto-tuning.
After executing Static auto-tuning (17-00=1), Proportion of motor leakage inductance (02-33) and Motor slip
(02-34) will renew the value.
Stator resistance measurement (17-00=2) provide for long motor leads
After executing Stator resistance measurement (17-00=2), Resistance between wires of motor 1(02-15) will
renew the value.
Loop tuning (17-00=4) provide great response of current circuit, it can improve frequency bandwidth of current
and torque.
Rotation Auto-tuning Combination (17-00=5) is the auto-tuning for three in one, including Loop tuning (17-00=4)
Stator resistance measurement (17-00=2) and Rotational auto-tuning (17-00=0).
Static Auto-tune Combination (17-00=6) is the auto-tuning for three in one, including Loop tuning (17-00=4)
Stator resistance measurement (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 %~120 % 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).
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) and PG pulse number (17-
07). Beware that PG pulse number (17-07) only used in SV and V/f+PG mode.
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 selection of PG rotation direction (20-28) adjusts automatically with PG card
254
Figure 4.4.98 Rated voltage and frequency settings
Output
Voltage
440V
17-03
0
17-04 60Hz
Rated frequency (for motor nameplate)
Motor rated frequency (for auto-tuning operation)
Motor rated voltage (for auto-tuning operation)
Rated voltage (for motor nameplate)
Inverter
M
380V/50Hz 440V/60Hz
Output
Frequency
VDI100 • Instruction manual