I just moved our shop's HRT210(Brush type) from our '99 VF-2 to our '08 VF-4 for the 1st time. The rotary turns opposite directions from machine to machine. On the VF-2, when the handle jog knob is turned to the +, the platter on the rotary turned CCW. On the VF-4, turn the knob to + and the platter turns CW. A-axis positions in a program are opposite what they are supposed to be as well.
Is it something as simple as a setting that is wrong? The VF-4 does use a brush to brushless converter box if that means anything.