yes Vdc -> VH+, Gnd -> VH-

NOTHING connects to the star point except mains earth, cable shields, machine frame... its a safety earth... don't confuse 'ground' on power supplies, BOBs etc, which correctly should be labelled 0v to differentiate it from +Volts with 'earth' or 'safety ground'.

The reason the power supply says VH+ and VH- is that it has isolated outputs (from 'safety ground') so depending on application either output could be designated as 0v.