Learning Advanced Features
5.7 Slip Compensation Operation
Slip refers to the variation between the setting frequency (synchronous speed) and motor
rotation speed. As the load increases there can be variations between the setting frequency
and motor rotation speed. Slip compensation is used for loads that require compensation of
these speed variations.
Slip Compensation Operation Setting Details
Set dr.09 to 2 (Slip Compen) to carry out the slip compensation operation.
Set the capacity of the motor connected to the inverter.
Enter the number of poles from the motor rating plate.
Enter the number of rated rotations from the motor rating plate.
Enter the rated current from the motor rating plate.
Enter the measured current when the load on the motor axis is removed
and when the motor is operated at the rated frequency. If no-load current
is difficult to measure, enter a current equivalent to 30-50% of the rated
motor current.
Enter the efficiency from the motor rating place.
Select load inertia based on motor inertia.
Less than 10 times motor inertia
More than 10 times motor inertia
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