Fuji Electric FRENIC-Ace Error OS: Overspeed protection

FRENIC-Ace inverter · taken from the manufacturer’s manual, pages cited

Alarm codeOS

Overspeed protection is triggered when the motor exceeds its maximum allowable speed. The manual lists no action for this code.

Model
Fuji Electric FRENIC-Ace
Display shows
Overspeed protection (OS)
Type
Alarm code
Source
Manual p. 125

What OS means

Overspeed protection p. 125

If OS is still not resolved

  • contact service / dealer p. 6
    “Failure to heed the information indicated by this symbol may lead to dangerous conditions”
  • contact service / dealer p. 137
    “To ensure the compliance, it is recommended to mount the inverters in a metal panel.”
Open the manual at page 125 All FRENIC-Ace error codes Manual details & download

This page summarises what the manufacturer’s manual says about OS; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Fuji Electric. Found a mistake? Report an error.