HDMIの場合はpsf自体が規格としてなさそうですね。
Most monitors do not accept PsF signals via HDMI. Monitors tend to accept true progressive (p) signals via HDMI. While you state that you are using a converter that takes SDI and converts it to HDMI, it is quite possible that the converter actually outputs true progressive via the HDMI. This is possible with the AJA HDP2 Mini Converter for example; it can accept a PsF signal, but then output a true progressive signal.
If you need additional assistance with your configuration, please consider contacting AJA Technical Support via phone or email between 9am and 5pm PST.