When Advanced magnetic flux vector control (Pr.80, 81) is used, the machine speed constant is controlled. The inverter c

The heat generation quantity of the FR-A520-5.5K is 310 W. (Reference: The heat generation quantity of the FR-A220E-5.5K

"8" display in offline auto tuning means forced stop by the operator. This means that you stopped operation before tunin

When the inverter start signal is input, the inverter starts outputting from the starting frequency. And then, it gradua

1. Stall prevention operation works when the inverter's output current exceeds the value set with Pr.22.In this case, it

You can calculate the torque from the power. From the general equation: Pout = ωn × TT = (Pout × τ)/ωnPout: Measured va

Refer to the Technical Sheet No.23 (Capacity Selection and Continuous Operation) for reference for selection. Optional c

1. In general, the input power of the inverter is always larger than the output power because the inverter loss is added

As the inverter does not display the speed in m/min, let us explain using the speed display in r/min. In this case, set

Basically, torque control cannot be performed. Instead, control speed to adjust the winding torque. It is possible to us

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FREQROL-A500

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FAQ within [ FREQROL-A500 ]

101-110 of Total 123

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Frequency display

When Advanced magnetic flux vector control (Pr.80, 81) is used, the machine speed constant is controlled. The inverter calculates the motor slip and compensa... More Details >>
- No：21374
- Release Date：2018/08/22 16:27
- Category： Inverters-FREQROL , FREQROL-A500
Heat generation quantity of FR-A500

The heat generation quantity of the FR-A520-5.5K is 310 W. (Reference: The heat generation quantity of the FR-A220E-5.5K is 330 W.) For other capacities, ref... More Details >>
- No：21515
- Release Date：2018/08/22 16:28
- Category： Inverters-FREQROL , FREQROL-A500
Overcurrent at low speed

"8" display in offline auto tuning means forced stop by the operator. This means that you stopped operation before tuning completes. 　With this forced stop, ... More Details >>
- No：21527
- Release Date：2018/08/22 16:28
- Category： Inverters-FREQROL , FREQROL-A500
Stall prevention operation

When the inverter start signal is input, the inverter starts outputting from the starting frequency. And then, it gradually raises the frequency for accelera... More Details >>
- No：21413
- Release Date：2018/08/22 16:27
- Category： Inverters-FREQROL , FREQROL-A500
Stall prevention

1. Stall prevention operation works when the inverter's output current exceeds the value set with Pr.22.In this case, it is considered that the current did n... More Details >>
- No：22067
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-A500
How can I calculate the processing torque from the measured power?

You can calculate the torque from the power. 　From the general equation: Pout = ωn × TT = (Pout × τ)/ωnPout: Measured valueωn: Actual motor shaft angular fre... More Details >>
- No：21475
- Release Date：2018/08/22 16:27
- Category： Inverters-FREQROL , Others , FREQROL-A500
Calculation of inverter acceleration and deceleration time

Refer to the Technical Sheet No.23 (Capacity Selection and Continuous Operation) for reference for selection. Optional capacity selection software is also pr... More Details >>
- No：22097
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-A500
Imbalanced input and output side power supplies

1. In general, the input power of the inverter is always larger than the output power because the inverter loss is added to the motor loss. 2. In both of cas... More Details >>
- No：21473
- Release Date：2018/08/22 16:27
- Category： Inverters-FREQROL , Others , FREQROL-A500
I want to display the speed on an analog meter.

As the inverter does not display the speed in m/min, let us explain using the speed display in r/min. In this case, set Pr.52 to "6" (operation panel display... More Details >>
- No：21944
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-A500
Simple torque control using stall prevention function

Basically, torque control cannot be performed. Instead, control speed to adjust the winding torque. It is possible to use the current limit function to preve... More Details >>
- No：21493
- Release Date：2018/08/22 16:27
- Category： Inverters-FREQROL , FREQROL-A500

101-110 of Total 123

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