Term definition and advanced magnetic flux control

1. Maximum torque available for output from the motor when combined with an inverter for a short period of time (1 minute or less). 　　It depends on the contr... More Details >>

Amount of heat generated by inverter

Refer to Section 2-45 and 2-46 of the FR-A series technical material. More Details >>

Size

The high power factor converter itself is almost same size as general-purpose inverter with the same capacity (FREQROL-A200 series), however, an additional s... More Details >>

Encoder signal output

It can be output by attaching the plug-in option FR-VPA, FR-VPB, or FR-VPC. Note that the output format depends on the option type. FR-VPA: Open collector ou... More Details >>

Difference from general-purpose inverter

While the inverter uses open-loop (V/F) control, it uses semi-closed loop vector control (constant current control). This enables output of stable torque esp... More Details >>

Advanced magnetic flux vector control

Check the parameters necessary for tuning again.Check if Pr.9 (Electronic thermal O/L relay) and Pr.81 (Number of motor poles) are set correctly. More Details >>

Applied motor selection

As the motor operates with the electronic thermal O/L relay characteristics for the standard motor, the thermal error occurs if the motor continuously operat... More Details >>

EMC compliant filter terminal cover

The SF1258 has the terminal cover.Although the SF1259 to SF1263 do not have the terminal covers and their terminals are bare, rubber tubes to cover them are ... More Details >>

Speed precision of Advanced magnetic flux vector control

The speed precision for each model is as follows:FR-K440 with PG: 1% or less of the maximum speed (3500 rpm)FR-A540 without PG (Advanced flux vector): 1% or ... More Details >>

FR-CV

Use the FR-HC to suppress harmonics. It also supports power supply regenerative driving.The FR-CV and FR-RC are both power supply regeneration units.The diff... More Details >>