4-24
been automatically entered with the measurement data.
6. Equivalent circuit of the motor
Pr. 01-13
Pr .01-16
Pr.01-15
Motor equivalent circuit used by VJ
V
S
I
Pr. 01-14
Rs
Rr
Lx
Lm
NOTE
* When the static tuning (parameters 01-07 = 2) is used, you must enter the no-load current ot the motor. It is generally
20 to 50% of the rated current.
If the parameter is set as 5, it will perform the parameter automatic tuning for the synchronous
motor. In this case, press the [Run] button to perform the automatic measurement operation
immediately. After the measurement is complete, the values are filled into Parameters 01-22 (Rs),
01-23 & 24 (Ld & Lq), 01-25 (Back EMF of the synchronous motor), respectively.
Synchronous motor AUTO-Tuning procedure:(static measurement)
1. All parameters of the Hybrid servo drive are set to factory settings and the motor is
connected correctly.
2. Set the rated current 01-17, rated power 01-18, rated speed 01-19, and number of poles
01-20 of the motor with correct values, respectively. For the acceleration/deceleration time,
please set the values according to the motor’s capacity.
3. Set Parameter 01-07 as 5 and then press the RUN button. The auto tuning process for the
motor is carried out immediately. (Note: the motor starts running slightly).
4. After the process is finished, check if the motor’s parameters (parameters 01-22 ~ 01-25)
have been automatically entered with the measurement data.
If the Parameter is set as 4, the automatic measurement of the angle between magnetic pole and
the PG origin for the synchronous motor is performed. In this case, press the [Run] button to
immediately perform automatic measurement. The measured data will be entered into Parameter
01 -27.
Angle between magnetic pole and the PG origin Auto-Tuning process for the synchronous motor:
1. After the measurement process for parameter value of 5 is performed completely or
manually enter the Parameters 01-03, 01-17 and 01-25, respectively.
2. Before tuning, it is recommended to separate the motor and the load.
3. Set Parameter 01-07 as 4 and then press the RUN button on the keypad. The auto tuning
process for the motor is carried out immediately. (Note: the motor starts running).
4. After the process is complete, please check if the values for the angle between magnetic
poles and PG origin have been automatically entered in the Parameter 01-27.
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