Installation dimensions

Refer to the outline dimension. More Details >>

Heat generation quantity of FR-A500

The heat generation quantity of the FR-A520-5.5K is 310 W. (Reference: The heat generation quantity of the FR-A220E-5.5K is 330 W.) For other capacities, ref... More Details >>

Connecting operation panel to enclosure

To connect the operation panel to the enclosure, use the parameter unit connection cable FR-CB201, FR-CB203, or FR-CB205. The maximum cable length is 5 m. No... More Details >>

Brake unit selection

1. The BU brake unit does not have the fault output.Multiple BU brake units can be connected in parallel.2. Power supply voltage 480 V- What resistance value... More Details >>

Influence on inverter at motor coasts to stop

An induction motor does not act as a power generator unless voltage is applied to it.Therefore, just rotating due to coasting does not affect the inverter. More Details >>

Current value display

The motor-generated torque elements have the following relationship:Torque T = K I V/FK: ConstantI: CurrentV: VoltageF: FrequencyThe inverter regularly perfo... More Details >>

Notes when inverter capacity is larger than motor capacity

When using one-rank-higher inverter, as you mention, you need to care about the setting of the electronic thermal O/L relay.Setting the electronic thermal O/... More Details >>

Inverter's heat generation quantity

The heat generation quantity while the inverter is outputting the rated current is as follows:1. FR-A520-3.7K: 230 W2. FR-A520-7.5K: 420WThe heat generation ... More Details >>

Which motors can I use with the inverter?

You can use general-purpose three-phase induction motors.You can also use geared motors if the motor itself is an induction motor.Synchronous motors are not ... More Details >>

Phase detection terminal

The phase detection terminal has been provided with units produced since December 1999. You can identify these units with the serial number "N9Z○○○○○○" or la... More Details >>