1987 NIkken rotary table minimum index? (CNC-250 DCF + 8800 DX control)

Hi Guys,

I am looking to purchase an old (1987) Nikken rotary table with a stand alone controller, but I am having trouble finding some info that I need.

I need to be able to index 1.5 degrees (240 increments around the part).
However, it is my understanding that many rotary tables with standalone control can only do 1 degree or 5 degree indexing.

I've searched pretty hard on google, but have not been able to come up with an answer (or I'm just not using the right search terms)

Does anybody have experience/knowledge on these Nikken units that may be able to shed some light?

The unit is a CNC-250 DCF with a 8800 DX control.

The actual unit that I am looking at is not under power so unable to actually test.

Thanks!