6-3
·To insert an AC reactor for surge suppression into the output side of the Inverter, set
this parameter to the motor leakage inductance added with the inductance of the AC
reactor.
·The Inverter fully functions in vector control with the default setting for motor leakage
inductance. Therefore, set this parameter only if the motor leakage inductance is
known.
n108 Motor Leakage Inductance Register 016C
Hex
Changes during
operation
No
Setting
range
0.000 to 655.0 (mH) Unit of
setting
See note
1
Default setting See
note 2
Note 1. The value will be set in 0.01-mH increments if the inductance is less than
100 mH and 0.1-mH increments if the inductance is 100 mH or over.
Note 2. Thedefault settingforthis parameteristhestandard leakageinductanceofthe
maximum applicable motor.
6-1-2 Adjusting Output Torque in Vector Control
·The Inverter controls the output torque of the motor according to the required load
torqueinvectorcontrol.Normally,nospecialadjustmentsarerequired.Adjusttheout-
put torque if the maximum torque of the motor is unavailable or improvements are
required in the output torque and response in a low-speed range.
H Adjusting the Torque Compensation Limit (n109)
·Adjust the set value in n109 (torque compensation limit) if the maximum torque of the
motor is insufficient or to limit the output torque to a certain degree while the motor is
driven by the Inverter in vector control.
·Set the torque compensation limit in percentage based on the rated output current of
the Inverter as 100%.
Compensating Torque Insufficiency
·Set n109 to a larger value if the maximum torque of the motor is insufficient.
·Setthevaluein5%incrementswhilecheckingthe operationoftheInverterandmotor.
·Checkthatnooverload(OL1 or OL2) is detected. If an overload is detected, decrease
thesetvaluesorconsider theuseofan Invertermodelormotor withahighercapacity.
Limiting Output Torque
·Set n109 to a smaller value if the fluctuation of the output torque is large and heavy
shock is imposed on the load, or excessive output torque is not required.
·Set the value according to the condition of the load.
Advanced Operation Chapter 6
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