9-42
In the single-phase 100 V class series, the full-scale value of the output current
monitor is twice the reference current. The reference current is given below.
Inverter type: FRN_ _ _ _C2S-6U 0001 0002 0003 0005
Nominal applied motor (HP) 1/8 1/4 1/2 1
Reference current (A) 0.8 1.5 3.0 5.0
F37
Load Selection/Auto Torque Boost/Auto Energy Saving Operation 1
F09 (Torque Boost 1)
A13 (Load Selection/Auto Torque Boost/Auto Energy Saving Operation 2)
Refer to the descriptions of function code F09.
F39 Stop Frequency (Holding time) F25 (Stop Frequency)
Refer to the description of function code F25.
F42 Control Mode Selection 1 A14 (Control Mode Selection 2)
F42 specifies the control mode of the inverter to control a motor.
Data for F42 Control mode
0 V/f control with slip compensation inactive
1 Dynamic torque vector control
2 V/f control with slip compensation active
11 V/f control for PMSM drive
V/f control
Under this control, the inverter controls a motor with the voltage and frequency according to
the V/f pattern specified by function codes.
Slip compensation
Applying any load to an induction motor causes a rotational slip due to the motor
characteristics, decreasing the motor rotation. The inverter’s slip compensation function first
presumes the slip value of the motor based on the motor torque generated and raises the
output frequency to compensate for the decrease in motor rotation. This prevents the motor
from decreasing the rotation due to the slip.
That is, this function is effective for improving the motor speed control accuracy.
The compensation value is specified by combination of function codes P12 (Rated slip
frequency), P09 (Slip compensation gain for driving)) and P11 (Slip compensation gain for
braking).
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