Consideration on thermal

A motor overheats (the current increases) when the load is heavy.When the electronic thermal O/L relay works, you need to mitigate the load.If the current is... More Details >>

Speed change due to power supply voltage fluctuation

1. The output frequency satisfies the "control specification/frequency precision" even when the power supply voltage changes, but the output voltage cannot r... More Details >>

Permissible brake duty

When consuming the regenerative power with the brake resistor, the brake transistor is triggered at a certain voltage to make the brake resistor use the rege... More Details >>

Influence on external measurement device

It is considered that malfunction of the measurement device is due to noise. Check the noise propagation route since the countermeasure depends on it. Some c... More Details >>

MR Configurator2

MR Configurator2 has been improved in the following. ・The servo assistant function introduces the related functions for each operation step to enable the f... 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 >>

FR-A800/FR-F800

When only the main circuit input power supply is cut off with the MC (when the power supply shutoff time is long), the main circuit undervoltage or instantan... More Details >>

Switching time of the FR-A800 control

20 ms or less is required to switch the control with the MC signal. More Details >>

Load characteristics fault detection

It is based on the motor rated torque. More Details >>

Frequency search

DC application method (Pr.162 = 0 or 10): 4 Hz or lower is regarded as 0 Hz. AC application method (Pr.162 = 3 or 13): It is not defined since it depends on ... More Details >>