Fault display

"E.OV3" is displayed when the voltage between the inverter terminals PN rises abnormally high while the inverter is decelerating or stopped. In this case, th... More Details >>

Operation mode setting

To enable the frequency setting with the setting dial and multi-speed setting, set Pr.79 to "3". Note that multi-speed setting is prioritized over setting us... More Details >>

Speed change due to power supply voltage fluctuation

1. The output frequency satisfies the "control specification/frequency precision" even when the power supply voltage changes, but the output voltage cannot r... More Details >>

Automatic restart after instantaneous power failure setting

You also need to set Pr.57 (Restart coasting time).The function does not work just by setting Pr.162 unless setting this parameter.(For A700, F700, and F700P... More Details >>

Calculation of acceleration/deceleration time

As the inverter, you can basically use the equation below to calculate the acceleration/deceleration time.Note that you should consider a factor of 120% for ... More Details >>

Speed control failure due to 20 mA from DC 4

It seems that there is a read error for 20 mA DC inside the inverter.Setting Pr.905 to 50 Hz while 20 mA DC is actually flowing between the terminals 4 and 5... More Details >>

Frequency setting

Normally, any of the PU, EXT, or NET LED turns ON.Check if the parameter unit FR-PU04/FR-PU07 or operation panel FR-PA07 is externally connected to the PU co... More Details >>

WA2W1KΩ dimensions

Please refer to the attached material. Figure 1 More Details >>

Power factor of inverter drive

Under 100% load, the power factors of the AC and DC reactors are 90% and 95%, respectively. For a line with no inverter control, use a power factor correctio... More Details >>

Running frequency

Check the setting of Pr.1 (Maximum frequency) and Pr.18 (High speed maximum frequency).Pr.1 is initially set to "120 Hz". More Details >>