ATV71 PHF and NLP Error

[Mohamed-ATV]

Hello Automation Community 

I have a VFD: ATV71HC20N4

When I supplied it with Three Ph 400v, it shows : PHF error

We found one open fuse in the input then we short-circuited it by a small wire.

Then we Turned the VFD on again, now it shows NLP error 

What are your opinions about how to troubleshoot the issue ?

Thanks for your feedback in advance. 

[BJacqz]

This is not an issue, it just shows that the drive is waiting for an action on the start command...

[Mohamed-ATV]

Hello BJAcks

The PHF error was solved , we found an open fuse in the power board , phase one.

Now for the NLP Error, according to the Manual we have to add either a DC Inductance or a Strap between PA/+ and PO.