Pre-excitation, zero-speed control, and servo lock

Pre-excitation is the process to control current while a motor is stopped so that motor torque can be generated immediately. There are two methods for this p... More Details >>

How many inverters can be connected?

Up to 32 units can be connected. (This is because the inverter communication conforms to RS-485.) More Details >>

What applications are suitable?

Variable speed control of small-capacity motor and other applications for which small size and low cost are required. (Examples: Replacement for gears and pu... More Details >>

Using a higher grade power factor improving reactor

Using a reactor under a load lighter than the rated capacity slightly spoils its effect in improving the power factor.Therefore, you should use a reactor wit... More Details >>

Current input switching operation

With your setting, since Pr.60 assigns the OH function to the terminal PL, and terminals RL and SD are open, an external protection error occurs. (It does no... More Details >>

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 >>

FR-A800-E

The direct connection with the inverter like the standard model, and the connection via the GOT and relay station (programmable controller) are available. On... More Details >>

FR-A800-E

It is not possible because the RS-485 terminal block is not installed. Use the FR-A800 (RS-485 communication type) when performing the RS-485 communication. More Details >>

Residual voltage at the output shutoff

The rotation speed has almost no effect. The residual voltage increases when the torque boost is increased, but no adjustment is required. More Details >>

Wiring length

In the FR-A800/F800, the restriction on the wiring length of the shielded cable is eliminated. The wiring length is up to 500 m as is the case with the unshi... More Details >>