Parameter list

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

Connecting potentiometer

Connect the external potentiometer to the terminals 10, 2, and 5 of the first inverter (be sure to connect the variable terminal to the terminal 2).　Connect ... More Details >>

Countermeasure against error

The inverter alarm "OV3" occurs when the main circuit DC voltage inside the inverter goes higher than the preset value due to the regenerative power returned... More Details >>

FR-A5CN

When the heat sink is outside, since the heat sink and fan are not waterproof, you need to enclose them so that they are not exposed to the spray of water. More Details >>

Inverter data cannot be read

It is considered that communication settings between the inverter and personal computer do not match. Check if settings such as communication rate and stop b... More Details >>

Noise from motor at low speed

It is considered to be caused by inverter PWM control. It can be suppressed by raising the PWM carrier frequency (Pr.72), but the entire noise and leakage cu... More Details >>

Part selection

1. Choose the circuit breaker based on the inverter capacity. 2. Also, choose the brake resistor based on the inverter capacity. 3. Choose the AC reactor bas... More Details >>

Using FR-A540 inverter on CC-Link

Answer to question 1 When the CC-Link option goes faulty, OPT (option error) occurs and the inverter's fault output is triggered. When communication is lost ... More Details >>

Analog voltage

Check the setting value of Pr.73. Or check Pr.C4 (Terminal 2 frequency setting gain) for the percentage of the voltage that is actually applied. For the FR-E... More Details >>

USB connector

The USB connection requires FR Configurator (FR-SW3-SETUP-WJ) prepared by Mitsubishi Electric Corporation. More Details >>