5
VFD-B Series
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5-45
î It will auto detect by pressing RUN key after this parameter is set to 01 or 02. When
setting to 01, it just auto detect R1 value, and the Pr.07-01 needed to input by manual.
When setting to 02, AC drive should be no-load and the value of Pr.07-01 and Pr.07-06
will be filled automatically.
î The steps to AUTO-Tuning are:
1. Make sure that all the parameters are set to factory settings and the wiring
connected to motor is correctly.
2. Make sure that motor is no-load before auto-tuning and the axis doesnât connect to
any belt or gear motor.
3. Fill in Pr.01-02, Pr.01-01, Pr.07-00, Pr.07-04 and Pr.07-08 with correct value.
4. After Pr.07-05 is set to 1 or 2, the AC drive will execute auto-tuning immediately as
soon as it receives the âRUNâ command The execution time will be 15 seconds +
Pr.01-09 + Pr.01-10. (The more horsepower needs the more Accel/decel time)
5. After executing, please check if there are values filled in Pr.07-01 and Pr.07-06. If
not, please press RUN key after setting Pr.07-05.
6. Then, you can set Pr.00-09 to 02/03 and set other parameters according to your
requirement.
Note 1: It is not suitable for many motors run with parallel in vector control mode.
Note 2: It is not suitable for using in vector control mode if | horsepower of motor | -
| horsepower of AC drive | doesnât exceed the useful range.
07 - 06
Motor Line-to-line Resistance R1
Factory Setting: 00
Settings
00 to 65535 mâŚ
Unit: 01
î The motor auto detection will set this parameter. The user may also set this parameter
without using Pr.07-05.
07 - 07
Reserved
07 - 08
Motor Rated Slip
Factory Setting: 3.00
Settings 0.00 to 20.00Hz Unit: 0.01
î Refer to the rated rpm on the nameplate of the motor and use the following equation to
determine the rated slip.
Rated Slip = F (Pr.01-01 base frequency) â (rated rpm x motor pole/120)
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