Setting Motor Constants - Toshiba TOSVERT VF-MB1 Instruction Manual

6.21 Setting motor constants

6.21.1 Setting motor constants for induction motors
f400 : Auto-tuning
f401 : Slip frequency gain
f402 : Automatic torque boost value
f405 : Motor rated capacity
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
6
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 3 (Energy-saving + auto-tuning)
Refer to section 5.5 for details of the setting method.
f415 : Motor rated current
f416 : Motor no-load current
f417 : Motor rated speed
f459 : Load inertia moment ratio
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