GE Fuji AF-300 Mini™ Error OU2: Overvoltage protection

GE Fuji AF-300 Mini Drive · taken from the manufacturer’s manual, pages cited

Alarm codeOU2

Overvoltage protection activated during deceleration when intermediate DC circuit voltage exceeds 400 Vdc (for 230 V series) or 800 Vdc (for 460 V series). The manual's first action is: “The drive stops the motor by detecting an overvoltage (400 Vdc for 230 V series, 800 Vdc for 460 V series) in the intermediate dc circuit.”

Model
GE Fuji AF-300 Mini™
Display shows
Overvoltage protection (OU2)
Type
Alarm code
Source
Manual p. 79

What OU2 means

Overvoltage protection p. 116

Common causes

What to do

  1. The drive stops the motor by detecting an overvoltage (400 Vdc for 230 V series, 800 Vdc for 460 V series) in the intermediate dc circuit. p. 116

Before you service the product, read the safety instructions in the manual p. 4.

If OU2 is still not resolved

  • Contact a qualified electrician for wiring p. 5
    “Wiring must only be performed only by a qualified electrician.”
  • Check that power is off before wiring p. 24
    “Check that the power is turned off before proceeding with any wiring Failure to do so may result in electric shock.”
Open the manual at page 79 All AF-300 Mini™ error codes Manual details & download

This page summarises what the manufacturer’s manual says about OU2; 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 GE Fuji. Found a mistake? Report an error.