OPF is out put phase lost .When you test without load .You can close this function by go to
ftL => OPL => No.

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
If [Output Phase Loss] (OPL) is set to nO loss of cable is not detected
• Check this action will not endanger personnel or equipment in any way Failure to follow these instructions will result in death or serious injury.

Released for: Schneider Electric Thailand