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What causes an ATV320 to display an OBF fault?

Article available in these languages: Czech, Japanese

Issue:
OBF fault on a ATV320

Product Line:
Altivar 320

Environment:
All

Cause:
OBF fault on drive display

Resolution:
Possible causes:
• Braking too sudden or driving load.
• Supply voltage too high.

Remedies:
• Increase the deceleration time.
• Install a braking resistor if necessary.
• Activate the [Dec ramp adapt.] (brA) function page 172, if it is compatible with the application.
• Check the supply voltage.

Schneider Electric Global

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