CC-Link

It is because the CC-Link monitor is designed to hold the value at an error occurrence. More Details >>

FR-A800

Number of terminals: Same input terminals as the A700 series, and the following two terminals are added. Safety: SI1, SI2, SIC 24 V power supply: +24 * The t... More Details >>

Real sensorless vector control

For tuning of a single motor with no load, set Pr.96 to "101". When a load is connected, set Pr.96 to "1" (without motor rotation). Since Real sensorless vec... More Details >>

Countermeasure against the instantaneous power failure with the inverter

The power cannot be supplied to the control power supply separately for the FR-A024/A044 and small type FR-E500. Therefore, the UPS is not available. More Details >>

Countermeasures when input power supply is turned off upon equipment fault

1. When the inverter power supply is turned OFF, the inverter is disconnected from the CC-Link network. However, since the CC-Link master station has the aut... More Details >>

Overcurrent

Frequent occurrences of OL means that the inverter is overloaded. Since the inverter can go faulty if it is constantly overloaded, you need to take a counter... More Details >>

Inverter current characteristics

In general, relationship between T (torque), K (constant), V (voltage), I (current), and F (frequency) is expressed as "T = K × (V/F) × I". Since (V/F) is co... 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 >>

Influence on noise level

By using the reactors 1 and 2 as well as the outside box supplied with the high power factor converter, while the noise may increase or decrease depending th... More Details >>

Auto tuning, tuning mode

The FREQROL-A200 has magnetic flux vector control in addition to the conventional V/F control. Magnetic flux vector control controls the motor with higher ac... More Details >>