dear hood this card can use a closed loop but i use it as v/f with pg and this make it work like servo to do that i set parameter a1-02 to 1 see pages 4-5,4-7,4-14,5-8 also parameter from f1-0 t0 f1-14 is to adjust pg page 5=36,5-37 and this also like mach 3 parameter
and the most important is puls train i/o parameters fro h6-0 to h6-7 page 5-51
page 6-30 it explain how puls train work
so that by the end this inverter is controlling after this adjustment according puls train when we set the puls train reference for example 25khz equivalent to motor freq. 5o hz so if the freq. in from mach 3 is changed the speed will change because the freq. will change the output freq. but the priod will be the same
all the best