FMB120 buzzer not sounding

Hi Team,

We installed an FMB 120 unit with a buzzer but it is not making a sound, the overspeeding event gets triggered when the speed passes the limited speed, but the buzzer will not make a sound.

Kindest regards,

Hi @Oanix

Good day, how did you connect the buzzer note that the DOUT is giving a negative supply not a positive voltage.

To test if it will work, connect the buzzer to the DOUT and trigger it from the maintenance tab.

Please find the schematic diagram on the link below:
Wiring-scheme-FMB120.jpg (1920×1301) (

Best Regards
Maynard C.

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