Mitsubishi FR-A820 FWD/REV button blinking

So, I've got this friggin' A820 inverter running standard IM. I wanted to connect it to GOT Simple using built-in RS-485 terminal, and it works.

But whenever I try to run the motor, all I get is blinking FWD/REV button. No matter I try to run it from PU, EXT or NET mode.
Manual says it's because there's no frequency command, but I most definitely give inverter frequency reference, it says on the damn PU screen what's the set frequency.

I tried to run it even from FR Configurator 2, same thing happens.

Best thing is that I managed to run the motor once, and I 'm 99.99% sure motor is working. I have no idea what parameter setting I might be missing, since I reseted everything few times already, I manually reset RS-485 parameters as well.

Any input would be appreciated.

****, I know what is it. Safety function is ON all the time. Don't know what's causing it, gotta check everything.

Dunno what's wrong, but I short-circuited safety functions, and now motor is running.
Probably some wire is loose, will fix it some other day.

Probably some wire is loose, will fix it some other day.

Mmmmmm. one of those temporary permanent jobs