You can input current from the terminal AM of the inverter to the programmable controller (for A/D conversion) and contr

The inverter uses PWM control to change the output voltage and frequency to vary the motor speed. PWM stands for Pulse W

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

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

The inverter has the current limit function. This automatically controls the frequency so that the preset current value

When the programmable controller power is turned OFF while the inverter is in the PLC link operation mode, a communicati

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

To use an inverter using the external contact coast to stop (to shut off the inverter's output), short-circuit the termi

The following is the case for the FREQROL-A500 series:1. When the R phase or S phase is lost, the inverter stops since i

1. How much is the sensitivity current? When the sum of the three-phase output current of the inverter reaches approxima

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FREQROL-A500

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FAQ within [ FREQROL-A500 ]

111-120 of Total 123

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Load current limit of inverter

You can input current from the terminal AM of the inverter to the programmable controller (for A/D conversion) and control the speed with the software of the... More Details >>
- No：21419
- Release Date：2018/08/22 16:27
- Category： Inverters-FREQROL , FREQROL-A500
Soft-PWM

The inverter uses PWM control to change the output voltage and frequency to vary the motor speed. PWM stands for Pulse Width Modulation. Voltage is chopped i... More Details >>
- No：21549
- Release Date：2018/08/22 16:28
- Category： Inverters-FREQROL , FREQROL-A500 , FREQROL-E500
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
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
Automatic overload control of inverter

The inverter has the current limit function. This automatically controls the frequency so that the preset current value may not be exceeded. (Note that the m... More Details >>
- No：21409
- Release Date：2018/08/22 16:27
- Category： Inverters-FREQROL , FREQROL-A500 , FREQROL-F500 , FREQROL-E500 , FREQROL-S500
Resetting inverter after restoring from power failure

When the programmable controller power is turned OFF while the inverter is in the PLC link operation mode, a communication error occurs and the inverter trip... More Details >>
- No：21417
- Release Date：2018/08/22 16:27
- Category： Inverters-FREQROL , Plug-in Options , 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
Coasting operation of the inverter

To use an inverter using the external contact coast to stop (to shut off the inverter's output), short-circuit the terminals MRS and SD.For CC-Link operation... More Details >>
- No：22003
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-A500
Power supply phase loss

The following is the case for the FREQROL-A500 series:1. When the R phase or S phase is lost, the inverter stops since it loses the control power supply.2. W... More Details >>
- No：22010
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-A500
Output side earth (ground) fault overcurrent protection

1. How much is the sensitivity current? When the sum of the three-phase output current of the inverter reaches approximately 70% of the inverter rated curren... More Details >>
- No：21394
- Release Date：2018/08/22 16:27
- Category： Inverters-FREQROL , FREQROL-A500 , FREQROL-A024 , FREQROL-E500

111-120 of Total 123

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