Be sure to use the FR-E5P to mount the operation panel.This is because the board is bare on the back of the operation pa

Many geared motors cannot continuously operate at low speed (for example, slower than 6 Hz) due to grease viscosity.If t

1. Changing frequency to 0 Hz(1) Set Pr.8 (Deceleration time) to 0 second.If the load is large, the stall prevention fun

The contact between the terminals RDY and SE is open collector output.Operation is:Normal: Non-conductiveFault: Conducti

It seems that calibration of the current input is slightly incorrect.By using Pr.904 (Frequency setting current bias) an

The speed precision for each model is as follows:FR-K440 with PG: 1% or less of the maximum speed (3500 rpm)FR-A540 with

To protect personnel from electric shock, it is necessary to provide the circuit with the earth leakage circuit breaker.

The inverter does not have a function to limit the current at 0 Hz.Although it has the DC injection brake, it is intende

The inverter's power supply capacity can be calculated using the following equation:Power supply capacity [kVA] = Motor

If the current increases when the motor stops under V/F control (at low speed under a light load), the motor is consider

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Inverters-FREQROL

FAQ within [ Inverters-FREQROL ]

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Operation panel

Be sure to use the FR-E5P to mount the operation panel.This is because the board is bare on the back of the operation panel and a dedicated connector is requ... More Details >>
- No：22030
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-E500
Speed control range

Many geared motors cannot continuously operate at low speed (for example, slower than 6 Hz) due to grease viscosity.If the motor you are using is of this typ... More Details >>
- No：22028
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-A024
Usage

1. Changing frequency to 0 Hz(1) Set Pr.8 (Deceleration time) to 0 second.If the load is large, the stall prevention function may work to lengthen decelerati... More Details >>
- No：22019
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-E500
Control wire of FR-HC RDY signal

The contact between the terminals RDY and SE is open collector output.Operation is:Normal: Non-conductiveFault: Conductive More Details >>
- No：22017
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , Options
Frequency misalignment at current input

It seems that calibration of the current input is slightly incorrect.By using Pr.904 (Frequency setting current bias) and Pr.905 (Gain), you can calibrate th... More Details >>
- No：22014
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL
Speed precision of Advanced magnetic flux vector control

The speed precision for each model is as follows:FR-K440 with PG: 1% or less of the maximum speed (3500 rpm)FR-A540 without PG (Advanced flux vector): 1% or ... More Details >>
- No：22013
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-A500
Earth leakage detection of the inverter

To protect personnel from electric shock, it is necessary to provide the circuit with the earth leakage circuit breaker.The inverter and motor circuits also ... More Details >>
- No：22006
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , Peripheral devices
Motor retention at 0 Hz

The inverter does not have a function to limit the current at 0 Hz.Although it has the DC injection brake, it is intended to improve the braking capability b... More Details >>
- No：22002
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-A500
Consideration on power supply capacity

The inverter's power supply capacity can be calculated using the following equation:Power supply capacity [kVA] = Motor output (kW)/(Motor efficiency × Inver... More Details >>
- No：22000
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL
Current increase at motor stop

If the current increases when the motor stops under V/F control (at low speed under a light load), the motor is considered to be in the overexcitation state.... More Details >>
- No：21997
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL

501-510 of Total 1306

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