commercial stepper controller

I posted a earlier message to the list about a Melec controller. I was
afraid that
no one would have any info on the controller. Anyway I've never used a
commercial controller can someone tell me what the terminal markings
mean they're
CW, CCW, M.F, P.O, H.A, O.H and then there is a switch block that has
Full, HP, H
and Half, LP, L I understand the Half and full step but the rest is
beyond me.

Jimmy