Pulse train output of terminal FM

Under Advanced magnetic flux vector control, the output frequency varies due to slip compensation. This may cause the output frequency monitor value to chang... More Details >>

Earth leakage detection of the inverter

To protect personnel from electric shock, it is necessary to provide the circuit with the earth leakage circuit breaker.The inverter and motor circuits also ... More Details >>

Relationship between undervoltage warning and instantaneous power failure

When an instantaneous power failure occurs and the inverter's bus voltage drops below the standard value, it outputs an undervoltage warning and stops its ou... More Details >>

EMC compliant filter terminal cover

The SF1258 has the terminal cover.Although the SF1259 to SF1263 do not have the terminal covers and their terminals are bare, rubber tubes to cover them are ... More Details >>

What functions are added by upgrading?

The following functions are added by upgrading: - Slip compensation function- Serial communication function- Frequency jump- 15-speed operation- Zero current... More Details >>

Output voltage

The output voltage is approximately 300 VDC for the 200 V class and approximately 600 VDC for the 400 V class. 　The output voltage fluctuates due to fluctuat... More Details >>

Speed does not exceed 46 Hz

Since the inverter displayed "0.00" instead of an error when the inverter speed dropped to 0 Hz and stopped by holding the winding machine by hand, it is con... More Details >>

Operation under torque limit in the speed control mode

Under a 50% torque limit, if the commanded speed (50 Hz in your example) cannot be achieved without torque exceeding 50%, since the torque does not exceed th... More Details >>

Speed setting

The high speed command (multi-speed command) is prioritized over the frequency setting potentiometer. It is OK if these are both input simultaneously. When t... More Details >>

Countermeasure against the instantaneous power failure with the inverter

The power cannot be supplied to the control power supply separately for the FR-A024/A044 and small type FR-E500. Therefore, the UPS is not available. More Details >>