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

Energy saving operation of the inverter is represented by comparison with commercial power supply operation. For exampl

This is because when the inverter restarts while the motor is coasting, an overcurrent trip can occur during the restart

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

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

When the wire between the 400 V inverter and motor is long (20 m or longer), surge voltage occurs momentarily. This volt

Yes, but functions are partially limited. (The FR-PU02 cannot demonstrate its full ability. The FR-PU01 cannot be used.)

A 400 V inverter does not operate when 200 V is supplied to it, therefore the motor does not rotate. A 200 V motor can b

The fan of the FR-A024 cannot be replaced by the customer. Mitsubishi Electric System & Service will replace it, so

The power cannot be supplied to the control power supply separately for the FR-A024/A044 and small type FR-E500. Therefo

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FAQ within [ FREQROL-A024 ]

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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
Energy saving effect of inverter operation

Energy saving operation of the inverter is represented by comparison with commercial power supply operation. 　For example, to control air volume of an air co... More Details >>
- No：21622
- Release Date：2018/08/22 16:28
What happens if reset occurs during operation?

This is because when the inverter restarts while the motor is coasting, an overcurrent trip can occur during the restart process. However, the recent types o... More Details >>
- No：21477
- Release Date：2018/08/22 16:27
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
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
Surge voltage of 400 V motor

When the wire between the 400 V inverter and motor is long (20 m or longer), surge voltage occurs momentarily. This voltage is as two or more times as the DC... More Details >>
- No：21404
- Release Date：2018/08/22 16:27
Can I use the parameter unit FR-PU02?

Yes, but functions are partially limited. (The FR-PU02 cannot demonstrate its full ability. The FR-PU01 cannot be used.) To use the parameter unit FR-PU02, u... More Details >>
- No：21613
- Release Date：2018/08/22 16:28
Driving 200 V motor by 400 V inverter

A 400 V inverter does not operate when 200 V is supplied to it, therefore the motor does not rotate. A 200 V motor can be rotated by a 400 V inverter, howeve... More Details >>
- No：21446
- Release Date：2018/08/22 16:27
Can I replace the cooling fan alone?

The fan of the FR-A024 cannot be replaced by the customer. Mitsubishi Electric System & Service will replace it, so contact us to order it. More Details >>
- No：22001
- Release Date：2018/08/22 16:30
Countermeasure against the instantaneous power failure with the inverter

The power cannot be supplied to the control power supply separately for the FR-A024/A044 and small type FR-E500. Therefore, the UPS is not available. More Details >>
- No：21368
- Release Date：2018/08/22 16:27

1-10 of Total 40

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