E6581697
F-64
6
6.21 Setting motor constants
6.21.1 Setting motor constants for induction motors
f400 : Auto-tuning
f415 : Motor rated current
f401 : Slip frequency gain f416 : Motor no-load current
f402 : Automatic torque boost value f417 : Motor rated speed
f405 : Motor rated capacity f459 : Load inertia moment ratio
To use vector control, automatic torque boost and automatic energy saving, motor constant setting (motor tuning)
is required. The following three methods are available to set motor constants.
1) Using the torque boost setting macro function (
au2) for setting the V/F control mode selection (pt) and
auto-tuning (
f400) at the same time
2) Setting V/F control mode selection (
pt) and auto-tuning (f400) independently
3) Combining the V/F control mode selection (
pt) and manual tuning
Caution:
If the settings for V/F control mode selections
pt are 2: automatic torque boost control, 3: vector control,
4: energy-saving, 5: Dynamic energy-saving.
Look at the motor's name plate and set the following parameters.
vl: Base frequency 1 (rated frequency)
vlv: Base frequency voltage 1 (rated voltage)
f405: Motor rated capacity
f415: Motor rated current
f417: Motor rated speed
Set the other motor constants as necessary.
[Selection 1: Setting by parameter setting macro torque boost]
This is the easiest of the available methods. It conducts vector control and auto-tuning at the same time.
Be sure to set the motor for
vl, vlv, f405, f415, f417 .
Set au2 to 1 (Automatic torque boost + auto-tuning)
Set au2 to 2 (Vector control + auto-tuning)
Set au2 to 3ď€ (Energy-saving + auto-tuning)
Refer to section 5.5 for details of the setting method.
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