Measure the megger values on the inverter's output side.If there is no problem:If the motor capacity is extremely smalle

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

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

No. Although the carrier frequency increases or decreases the switching count, the switching speed is the OFF-to-ON spee

If the output current is close to 25% of the rated current, output phase loss may occur when one or two phases of three

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

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

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

Add an analog output by the FR-A5AY.Monitor the three output; output AM (0 to 5 (10) V) and optional 4 to 20 mA, and 0 t

When the wiring between the inverter and motor is long, surge voltage occurs at the terminal of the motor.This surge vol

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FREQROL-A500

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FAQ within [ FREQROL-A500 ]

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Error E.LF

Measure the megger values on the inverter's output side.If there is no problem:If the motor capacity is extremely smaller than the inverter capacity (as a gu... More Details >>
- No：21933
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-A500 , FREQROL-E500
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
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
Surge voltage of 400 V inverter

No. Although the carrier frequency increases or decreases the switching count, the switching speed is the OFF-to-ON speed of the IGBT element of the inverter... More Details >>
- No：21401
- Release Date：2018/08/22 16:27
- Category： Inverters-FREQROL , FREQROL-A500 , FREQROL-F500 , FREQROL-A024 , FREQROL-E500 , FREQROL-V200 , FREQROL-A200 , FREQROL-S500 , FREQROL-A100
Output phase loss alarm

If the output current is close to 25% of the rated current, output phase loss may occur when one or two phases of three phases go below 25%.Therefore, when a... More Details >>
- No：22052
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-A500 , FREQROL-E500
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
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
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
Concurrent monitoring of running frequency, output voltage, and output current

Add an analog output by the FR-A5AY.Monitor the three output; output AM (0 to 5 (10) V) and optional 4 to 20 mA, and 0 to 5 (10) V. More Details >>
- No：21959
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-A500 , FREQROL-F500
Inverter drive of 400 V class motor

When the wiring between the inverter and motor is long, surge voltage occurs at the terminal of the motor.This surge voltage deteriorates insulation of the m... More Details >>
- No：21926
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-B , FREQROL-A500 , FREQROL-F500 , FREQROL-A024 , FREQROL-E500 , FREQROL-V200 , FREQROL-A200 , FREQROL-S500 , FREQROL-A100

1-10 of Total 123

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