Regarding radio interference

The input and output of the inverter’s main circuit contains high-order harmonic components, which may cause interference with nearby communication devices (AM radios, etc.) and sensors. Installing a noise filter, etc., can reduce interference.

The wiring length between the control panel and the inverter siren should be 100m or less.

Single-phase input is also possible (depending on capacity).

Inverter control method: Sine wave PWM control

Set the interval between the stop of the sound pattern you are using to 40 seconds or more. A short stop interval may cause a malfunction.