Connection method for the A500 and E500 is shown in the figure below. The figure is given in an Excel file. Figure 1

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

Since the FR-A540-0.75K has a brake transistor for resistor regenerative driving inside the inverter, you do not need to

The speed variation rate is as follows: - Encoder feedback control: ±0.2% - Vector control: ±0.02% (mentioned in FR-A5A

To change the running frequency while the frequency command is input to the terminal 2, adjust the parameters in the fol

1. You can implement stop-on-contact.2. When implementing stop-on-contact, use the inverter to decelerate the motors to

Refer to the following points.For fan pump -> Square torqueFor general-purpose machine (for example, transport, eleva

Depending on the load current, undervoltage protection (UVT) or instantaneous power failure protection (IPF) is triggere

To control multiple inverters using arbitrary signals (4 to 20 mA) simultaneously, it is recommended to connect the sign

If you connect two frequency setting potentiometers to the terminals 5 and 10, the permissible current of 10 mA is excee

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FREQROL-A500

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FAQ within [ FREQROL-A500 ]

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Connection with personal computer

Connection method for the A500 and E500 is shown in the figure below. The figure is given in an Excel file. Figure 1 More Details >>
- No：21536
- Release Date：2018/08/22 16:28
- Category： Inverters-FREQROL , FREQROL-A500 , FREQROL-E500
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
Brake unit selection

Since the FR-A540-0.75K has a brake transistor for resistor regenerative driving inside the inverter, you do not need to use BU. Just remove the jumper from ... More Details >>
- No：21992
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-A500
Encoder feedback speed accuracy

The speed variation rate is as follows: 　- Encoder feedback control: ±0.2% - Vector control: ±0.02% (mentioned in FR-A5AP Instruction Manual) More Details >>
- No：21422
- Release Date：2018/08/22 16:27
- Category： Inverters-FREQROL , Plug-in Options , FREQROL-A500
Changing main speed at analog signal input

To change the running frequency while the frequency command is input to the terminal 2, adjust the parameters in the following steps:1. Change Pr.77 to "2".2... More Details >>
- No：22025
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-A500
Stop-on-contact control

1. You can implement stop-on-contact.2. When implementing stop-on-contact, use the inverter to decelerate the motors to reduce the impact upon stop-on-contac... More Details >>
- No：22041
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-A500
Selection

Refer to the following points.For fan pump -> Square torqueFor general-purpose machine (for example, transport, elevation) -> Constant-torque type More Details >>
- No：22048
- Release Date：2018/08/22 16:30
- Category： Inverters-FREQROL , FREQROL-A500
Inverter operation against power supply voltage drop

Depending on the load current, undervoltage protection (UVT) or instantaneous power failure protection (IPF) is triggered to shut off the inverter output, an... More Details >>
- No：21471
- Release Date：2018/08/22 16:27
- Category： Inverters-FREQROL , FREQROL-A500
Controlling multiple VVVFs via communication from personal computer

To control multiple inverters using arbitrary signals (4 to 20 mA) simultaneously, it is recommended to connect the signals (4 to 20 mA) in series. (This doe... More Details >>
- No：21491
- Release Date：2018/08/22 16:27
- Category： Inverters-FREQROL , FREQROL-A500
Auxiliary input power supply

If you connect two frequency setting potentiometers to the terminals 5 and 10, the permissible current of 10 mA is exceeded, and you need to install 2 KΩ res... More Details >>
- No：21494
- Release Date：2018/08/22 16:27
- Category： Inverters-FREQROL , FREQROL-A500

31-40 of Total 119

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