Hi all, I have an Altivar 28 inverter that I bought new but surplus some years ago that has been sitting under the bench ever since. I have finally got round to fitting a 3 phase motor on my VMB so want to bring it into use. I have lashed it up to a motor to test and it runs sweetly but only up to a max frequency of 50 Hz. Please, does anyone know the magic spell to configure the inverter to run up to 100 Hz from the front panel without needing to connect it to the remote keyboard?

Thanks, John.