Residual voltage at the output shutoff

The rotation speed has almost no effect. The residual voltage increases when the torque boost is increased, but no adjustment is required. More Details >>

Fault contact when connecting separate power supply for each control circuit

Since the inverter's fault contact is an NC contact, it does not open unless a fault occurs.Therefore, when the control power supply (and main circuit power ... More Details >>

Influence by PHS

PHS does not cause the inverter to malfunction.On the contrary, if you use PHS near an inverter or motor, communication over PHS may become noisy or even get... More Details >>

Operation of automatic restart after instantaneous power failure

1. No operation log is recorded.2. No. However, you can create a state indicating that automatic restart after instantaneous power failure is in progress by ... More Details >>

Auto tuning

Vector control performs high-accuracy calculation using the motor constant. Therefore, to perform vector control operation, the inverter must recognize the m... More Details >>

Countermeasure against the harmful effect on model selection and other devices

Harmful elements that may affect other devices through the input side of the inverter include noise and harmonics. Harmonics can be reduced by inserting the ... 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 >>

Remote input signal of CC-Link communication

The signal becomes 0 when the RES signal is turned ON. More Details >>

Remote input signal of CC-Link communication

When the communication error occurs, the input signal status is not retained, and all the bits turn OFF. When the communication establishes again, the bit tu... More Details >>

MT-BU5

No, the MT-BU5 is unavailable because it is the conventional model. Use the FR-BU2. More Details >>