Installation method

If multiple line noise filters are wound without clearance between them, the noise reduction effect corresponding to the number of filters cannot be obtained... More Details >>

FR-E700

Install the DIN rail attachment to each inverter.The optional FR-A7NC is built in the inverter and does not influence installation of the inverter. More Details >>

Harmonic suppression guidelines for power supply

Since the high power factor converter uses the self-excitation three-phase bridge (voltage type PWM control) circuit configuration (type), the conversion coe... More Details >>

Term definition and advanced magnetic flux control

1. Maximum torque available for output from the motor when combined with an inverter for a short period of time (1 minute or less). 　　It depends on the contr... More Details >>

Parameters not covered in manual are displayed

Pr.168 indicates the inverter software version.Pr.169 indicates the inverter software subversion history. These two parameters are only used by the manufactu... More Details >>

Countermeasure against the fault occurrence

When a CC-Link communication fault occurs, the option error (OP3) occurs on the inverter and the output is shut off, and the motor starts coasting. When usin... 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 >>

Number of years of service life designated by law

The number of years of service life of the inverter is not designated by law. More Details >>

Meaning of OL display (2)

Yes. "OL" is displayed under speed control whenever the torque limit is reached without regard to the rated torque. More Details >>

Earthing (grounding) of FR-A7NC (E kit)

There is no problem, however, earthing (grounding) from each FG terminal is recommended to avoid the influence of noises. More Details >>