Toshiba TOSVERT VF-MB1, Instruction Manual

Page: 186 / 350

E6581697
F-66
6
[Parameter setting]
Title Function Adjustment range Default setting
f401
Slip frequency gain 0-150 (%
）
50
f402 
Automatic torque boost value 0.1-30.0 (%)
f405 
Motor rated capacity 0.01-22.00 (kW)
f415
Motor rated current 0.1-100.0 (A)
f416
Motor no-load current 10-90 (%)
Depends on
the capacity
(Refer to
section 11.4)
f417
Motor rated speed 100-64000 (min
-1
) *1
f459 
Load inertia moment ratio 0.1-100.0 (times) 1.0
thr 
Motor electronic thermal
protection level 1
10-100 (%) / (A) 100
*1: Default setting values vary depending on the setup menu setting. Refer to section 11.5.
Setting procedure Adjust the following parameters:
f401
: Set the compensation gain for the slipping of the motor. A higher slip frequency reduces motor
slipping correspondingly. After setting
f417
, set
f401
to adjust in detail. Be careful as
inputting a value larger than necessary causes hunting and other unstable operation.
f402 : Adjust the primary resistive component of the motor. Decreases in torque due to a possible voltage
drop during low-speed operation can be suppressed by setting a large value in this parameter. Be
careful as setting a value larger than necessary may lead to an increased current causing a trip at
low speeds. (Perform adjustments according to the actual operation.)
f405 : Set the motor's rated capacity according to the motor's name plate or test report.
f415
: Set the rated current of the motor. For the rated current, see the motor's nameplate or test report.
f416
: Set the ratio of the no-load current of the motor to the rated current. Enter the value in % that is
obtained by dividing the no-load current specified in the motor's test report by the rated current.
Increasing this value increases the excitation current.
f417
: Set the rated rotational speed of the motor. For the rated current, see the motor's nameplate or test
report.
+
Adjustment method for the moment of inertia of the load
f459
: Adjusts the excess response speed. A larger value gives a smaller overshoot at the
acceleration/deceleration completion point. In the default settings, the moment of inertia of the load
(including the motor shaft) value is optimally set considering a motor shaft of 1x. When the
moment of inertia of the load is not 1x, set a value that matches that actual moment of inertia of
the load.
thr
: If the rated capacity of the motor is one size smaller than that of the inverter, lower the thermal
protective level according to the rated c urrent of the motor.
* Sensorless vector control may not operate properly if the motor capacity differs from the
applicable rated capacity of the inverter by more than two grades.
Caution:
If a combination of the inverter rating and the motor capacity is different for more than 2 classes,
vector control may not operate correctly.