Certificate for special tax reduction for first year facilities

The special tax reduction for first year facilities is the taxation system for promoting investment in the reform of the energy supply. The required certific... More Details >>

FR-E520 operation mode (Pr.79) selection

The FR-E500 manufactured before May 1998 behaved as you mentioned, and the potentiometer becomes unavailable once you set the frequency on the operation pane... More Details >>

PWM control

PWM is an acronym for Pulse Width Modulation and varies the switching pulse width of transistors.　This method creates many pulses within a single cycle of th... More Details >>

Installing contactor on input side

It is not recommended to install a contactor on the input side and connect the auxiliary contact to the terminal STF of the inverter for the following reason... More Details >>

Protective functions

When the protective function works, the inverter is stopped (output shutoff) by the RDY signal. More Details >>

Can I input speed setting externally with the box type?

No. Use the potentiometer on the box to set the speed. If you want to input analog values externally to set the speed, use the unit (module) type. More Details >>

Model configuration

12 models of FREQROL-V200 vector inverters each for the 200 V and 400 V classes from 1.5K to 45K. 9 models of SF-VR vector control dedicated motors each for ... More Details >>

FR-PA07, FR-CB203

Yes. More Details >>

Applied motor selection

As the motor operates with the electronic thermal O/L relay characteristics for the standard motor, the thermal error occurs if the motor continuously operat... More Details >>

Peripheral device selection

1. Select the circuit breaker and MC in accordance with the inverter type.2. Select the power factor improving reactor in accordance with the motor output. More Details >>