Operation panel

If "PS" is displayed even the "STOP/RESET" key on the operation panel is not pressed, a inverter fault may be the cause. In this case, consult with your sale... More Details >>

Noise from motor at low speed

It is considered to be caused by inverter PWM control. It can be suppressed by raising the PWM carrier frequency (Pr.72), but the entire noise and leakage cu... More Details >>

Frequency setting

Set Pr.125 (Terminal 2 frequency setting gain frequency) = "90 Hz".This changes the frequency with the potentiometer turned to the maximum position (at 5 V i... More Details >>

CC-Link

Slow blinking of the RUN LED indicates reverse operation.Fast blinking indicates that while the start command is input, the running frequency command is not ... More Details >>

RUN blinks

You cannot use the setting dial while the terminals JOG and SD are turned ON.When performing JOG operation using external signals, set Pr.79 (Operation mode)... More Details >>

Difference between SU (up to frequency) and FU (frequency detection)

- SU signal (up to frequency signal)This signal is output when the inverter output frequency reaches the set frequency (the frequency the inverter is require... More Details >>

Frequency setting

Normally, any of the PU, EXT, or NET LED turns ON.Check if the parameter unit FR-PU04/FR-PU07 or operation panel FR-PA07 is externally connected to the PU co... More Details >>

Multi-speed setting

Priorities are: Low speed (RL) > Middle speed (RM) > High speed (RH).For example, if the low speed (RL) and middle speed (RM) signals are input simulta... More Details >>

Terminal AM calibration

1. By setting Pr.158 (Terminal AM function selection) to "21" (Reference voltage output), 10 V is output from the terminal AM.2. Read Pr.901 in the PU operat... More Details >>

PU operation

If Pr.79 = 3, PU and EXT turn ON. Switching between PU and EXT is not available. Turn the setting dial to set the frequency and press the SET key to accept it. More Details >>