Thanks guys,
I manual suggest the Vmax for Axis 4 is 90 deg/s and 130 deg/s for axis 6. My program aligns 4 5 and 6 then asks for a PTP move with A4 incrementing 180deg and A6 260deg at V=100%. The total rotation should be 440deg and take ~ 2 seconds (plus Acc/Dec time. The combined axial speed should combine to be (440Deg/2s) about 220Deg/s however I get 128 deg/s which is lower than that of A6 alone.
Perhaps it is an internal mechanism issue. Independently I can produce the max A4 and A6 angular speeds however.
All this testing was with no load on the flange.
Jeff