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 >>

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 >>

Influence on leakage current

Since the converter in the high power factor converter section performs PWM switching, the leakage current increases to the same level as the general-purpose... 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 >>

Simple torque control using stall prevention function

Basically, torque control cannot be performed. Instead, control speed to adjust the winding torque. It is possible to use the current limit function to preve... More Details >>

Parameter list

The setting memo of the parameter list seal is not provided with the FR-A500 Instruction Manual. More Details >>

Details of zero current detection

1. The inverter also monitors the output current during DC injection brake operation in addition to normal operation. Therefore, zero current detection also ... More Details >>

Inverter current value

1. As the measurement condition is unknown, the possible cases are as follows: - If you measured the current on the input side of the inverter, since the cu... More Details >>

Difference between FR-AU01 and AU01A

The major changes from FR-AU01 to FR-AU01A include 1. Case material and 2. Lead wire terminal process method. The FR-AU01A has a backward compatibility with ... More Details >>

Long motor wiring

When you use a long wire between the inverter and motor, pay attention to the following: 1. Since the voltage supplied to the motor terminal is reduced due t... More Details >>