Does anyone know the function of the 'boost' connection from PL5 terminal 2 on the stepper driver board to MRS/RT on the Mitsubishi Freqrol Z024-S0.37K? Is it just a 'stop' or does it also change the ramp rate, and if so is there a published list of all the VFD parameters that Boxford used on this machine and drive?

Is there a detailed schematic 'out in the wild' for the front panel circuit boards?

Similarly is a parts manual or exploded general arrangement drawing of the mechanicals available online?

I can't seem to find the right section to post this in!