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Why does my ATV320 only run up to 50Hz?

Altivar 320, the customer can only adjust the LSP, low speed setting, to 50Hz.

Product line:
ATV320, Altivar 320


Basic settings

The LSP (Low Speed) can only be adjusted to TFR (Max Frequency), but also restricted to the HSP (High Speed) setting
First check that BFR (Standard Mot freq) is set to 60 (60Hz NEMA).
Next check the setting of TFR (Max frequency).  Factory setting is 60Hz but goes to 72Hz when BFR is adjusted to 60Hz.
Last check the HSP (High Speed) setting.

Once TFR and HSP are at 60Hz, or higher, the LSP can be adjusted above 50Hz

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