Hitachi SJ7002 Series Instruction Manual page 232

4–70
Setting Motor Constants for Vector Control
Func. Name
H031 Auto-tuned constant R2, 1st motor
H032 Auto-tuned constant L, 1st motor
H033 Auto-tuned constant Io, 1st motor
Auto-tuned constant J, 1st motor
H034
The inverter has three separate motor constant sets named 1st, 2nd, and 3rd. The 1st motor
constant set is the default, while the SET and SET2 intelligent inputs select the 2nd and 3rd
constant sets, respectively. The torque control methods are valid to use only if a particular
motor constant set includes parameters for the selected control method. The following table
lists the vector control methods and shows the ones that are valid for each motor constant set.:
Vector Control Method
V/f constant torque
V/f variable torque
V/f free-setting curve
Sensorless vector control (SLV)
Sensorless vector control, 0Hz domain
Vector control with encoder feedback
The motor data selection is available only to the 1st motor constant set, selected by function
H004. By default, the 2nd and 3rd motor constants sets only store standard motor parameters.
The table below shows this arrangement.
Motor data selection
Standard motor parameters
Auto-tuning parameters
Adaptive tuning parameters
When motor constant values are available from the motor manufacturer, you can enter them
directly. The available motor constant parameters (storage locations) depend on the motor
constant set (1st, 2nd, or 3rd) according to the following table.
Motor data selection
Standard motor parameters
Auto-tuning parameters
Adaptive tuning parameters
Data
0.000–65.53 Units: ohms
0.00–655.3 Units: mH
0.00–655.3 Units: A
0.001–9999
Units: kgm
1st motor 2nd motor
✔ ✔
✔ ✔
✔ ✔
✔ ✔
✔ ✔
✔ ✘
1st motor 2nd motor
✔ ✔
✔ ✘
✔ ✘
1st motor 2nd motor
H020 to H024 H220 to H224
H030 to H034 —
H030 to H034 —
Notes
2
3rd motor
✔
✔
✘
✘
✘
✘
3rd motor
✔
✘
✘
3rd motor
—
—
—