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5-17
WARNING
When the torque limit function is selected, an operation
may not match the set acceleration and deceleration time
or set speed. The machine should be so designed that
safety is ensured even when operation does not match
set values.
Accident may result.
WARNING
The frequency may be stagnated / not decelerate when
using the automatically OU trip prevention and set the
frequency limit(Low) to the setting frequency or less.
Accident may result.
This is a function for motor 1.
To obtain the motor torque most efficiently, the torque
vector control calculates torque according to load, to
adjust the voltage and current vectors to optimum
values based on the calculated value.
Set value Operation
0 Inactive
1 Active
When 1 (Active) is set, the set values of the following
functions differ from the written values:
c F09 Torque boost 1
Automatically set to 0.0 (automatic torque boosting).
d P09 Slip compensation amount Slip compensation is
automatically activated.
When 0.0 is set, the amount of slip compensation for
the FUJI standard 3-phase motor is applied. Otherwise,
the written value is applied.
Use the torque vector control function under the
following conditions:
c There must be only one motor.
Connection of two or more motors makes accurate
control difficult.
dThe function data (rated current P03, no-load current
P06, %R1 P07, and %X P08) of motor 1 must be
correct.
When the standard FUJI 3-phase motor is used, setting
the capacity (function P02) ensures entry of the above
data. An auto tuning operation should be performed for
other motors.
eThe rated current of the motor must not be significantly
less than the rated current of the inverter. A motor two
ranks lower in capacity than the nominal applied motor
for the inverter should be used at the smallest
(depending on the model).
fTo prevent leakage current and ensure accurate control,
the length of the cable between the inverter and motor
should not exceed 164ft(50m).
gWhen a reactor is connected between the inverter and
the motor and the impedance of the wiring cannot be
disregarded, use P04, "Auto tuning," to rewrite data.
If these conditions are not satisfied, set 0 (Inactive).
F 4 2 T R Q V E C T O R 1
Related functions:
P01, P09
F42
Torque vector control 1