Frequency manual controller FR-AX

Considering voltage drop of the internal power supply and influence by noise, the wiring length should be 30 m or less. More Details >>

“off” is shown in the display.

Operation mode for manufacturer setting is enabled. For MR-J4-B, MR-J4W2-B and MR-J4W3-B, turning "ON (up)" all the control axis setting switches (SW2) enabl... More Details >>

Output phase loss alarm

If the output current is close to 25% of the rated current, output phase loss may occur when one or two phases of three phases go below 25%.Therefore, when a... More Details >>

Frequency setting

When using the setting dial to set the frequency, turn the dial and display the frequency. Then, press the "SET" key while the desired value flickers.The fre... More Details >>

Input/output voltage

The output voltage will not be imbalanced when the inverter is used. (Since AC is converted into DC and then into AC, the output voltage is hardly effected f... More Details >>

Automatic restart after instantaneous power failure

1. Yes. The inverter cannot restart if STF and STR are turned OFF.However, on the next startup, the inverter detects coasting and restarts.2. When automatic ... More Details >>

MRS setting

1. For MRS, coasting starts when the MRS contact turns ON. For Pr.250 = "0",IM is coasting immediately when the start signal is turned OFF. 　2. No. Set eithe... More Details >>

Speed control failure due to 20 mA from DC 4

It seems that there is a read error for 20 mA DC inside the inverter.Setting Pr.905 to 50 Hz while 20 mA DC is actually flowing between the terminals 4 and 5... More Details >>

Terminal setting

To use the terminal as voltage input, you need to:- Set Pr.267 (Terminal 4 input selection).- Set the voltage/current input switch on the inverter board.- Se... More Details >>

Proportional band of multiple inverters

By importing the operation frequency from the AM terminal (analog output) of the first inverter to the FR-FH (ratio setter), the operation command which is p... More Details >>