Fault output contact rating

They are capable of a load of 5 VDC±5% and 10 mA. More Details >>

Setting values of the FR-F800 when replaced with the FR-F400

The performance and noise countermeasure were improved and the initial value is set to "8". Try with the initial value "2" first. If the noise is distracting... More Details >>

Input phase loss protection

The initial value of Pr.872 is set to "1" (Valid) because the A701 have regeneration unit built-in and an overvoltage may occur when the regenerative operati... More Details >>

Offline auto tuning

Leave the setting of Pr.96 as "3". It indicates that auto tuning has been completed and the motor constant has been read. When it is changed unnecessarily, t... More Details >>

Motor characteristics at low input voltage

Since the dedicated motor is designed with the rated voltage of approximately 320 V, it can produce sufficient torque for the input voltage of 380 V. Therefo... 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 >>

Static torque

When a vector inverter is used for position control, the servo lock works when it is stopped. When the start signal (STF or STR) is turned ON, the servo lock... More Details >>

Acquisition of pressure-resistant explosion-proof certification

The test institutes assigned by the Minister of Health, Labour and Welfare (National Institute of Occupational Safety and Health and Technology Institution o... More Details >>

Frequency monitor display fault

This can occur if the parameter unit window display is set to "Frequency setting value". If the screen display selection (first monitored window) is set to "... More Details >>

Amount of heat generated by inverter

Refer to Section 2-45 and 2-46 of the FR-A series technical material. More Details >>