Problem testing NREL 5MW Reference Turbine

Dear all,

I am currently trying to simulate NREL 5MW Reference Turbine on FAST v7. I’ve used the input files which compose the NREL’s Technical Report ( and I am getting the following error:
" Invalid logical input for file NREL_5MW.fst.
The error occurred while trying to read Echo "

Can someone please help me ? I’ve really verified all my input files and they seem correct to me.

Best Regards,

Eduardo Menezes

Dear Eduardo,

It sounds like there is a problem with the format of your FAST v7 input file. That said, a complete FAST v7-compatible model of the NREL 5-MW turbine is available at: …

Best regards,

Dear Jason,

I am really grateful for your quick response.
Congratulations for your work and for maintaining this so important forum.

Best regards,

Eduardo Menezes
BSc Mechanical Engineering
Master’s Student Wind Energy
Center for Renewable Energy - Recife, Brazil