Sensitivity current of earth leakage circuit breaker

The rated sensitivity current of the earth leakage circuit breaker can be calculated using the following equation. If the result is 30 mA or less, the NV-FA ... More Details >>

Countermeasure against oil mist

1. You cannot use the inverter in an environment where it is exposed to oil mist. 　You need to enclose the inverter in an enclosure and then install the encl... More Details >>

Changing maximum frequency

The FR-B type 30K or higher products have passed the explosion-proof test certified by the Ministry of Health, Labour and Welfare with the maximum frequency ... More Details >>

Noise filter

We offer DC reactors from 0.4K and you can use it. 　You can use FR-BIF, FR-BSF, and FR-BEL together. More Details >>

Communication operation with FR-E500

We have no sample program for RS485 communication. Since the communication method of the FR-SW0-SETUP uses a different protocol from 485 communication and st... More Details >>

Relationship between frequency and load current

If the load is heavy and the output current is higher than the control value, you can adjust Pr.22 (Stall prevention operation level) to trigger the stall pr... More Details >>

Indication of potentiometer on operation panel

The potentiometer on the operation panel is initially calibrated so that the maximum indication is slightly over 60 Hz with the potentiometer turned to the m... More Details >>

Analog ammeter

We recommend the "YM206RI 1 mA" analog ammeter. More Details >>

Countermeasure against harmonics

When the high power factor converter is installed, you can use the conversion coefficient of K5 = 0 for calculation. In accordance with the harmonic suppress... More Details >>

FR-A7NCE connector

It is tilted to wire the cable easily. More Details >>