На старом станке был частотник BEST (не помню какой), и там это можно было настроить. Можно было включить шпиндель с самого частотника и управлять оборотами с крутилки, но как только приходил сигнал с нцстудио, управление переходило к ней. Или откуда первая команда пришла, тот и рулит. Не помню. Параметр P065 - ставил 5. Вроде так было.
etting range:0, Operation panel control(forward starting, reverse starting, stop); 1, External terminal control(forward/stop, reverse/stop); 2, External terminal control(forward/stop, reverse/stop); 3, External terminal control(forward starting, reverse starting, stop (normally close));4, External terminal control(forward starting, reverse starting, stop(normallyopen));5, Above 0-3 auto-adaptation.This function is to choose the control method of inverter starting and stopping. In below explanation, X1 terminal is assumed to be forward, X2 to be reverse, X3 to be stop.When operation panel control (0) is chosen, external terminal control turns invalid. Forward starting key RUN, reverse starting key REV, stopping key STOP are used to control motor starting and stopping.When external terminal control (1) is chosen, when X1(forward) switches on COM, forward starting; switches off, stop. When X2(reverse) switches on COM, reverse starting; switches off, stop.When external terminal control (2) is chosen, when X1(forward) switches on COM, starting; switches off, stop. When X2(reverse) switches on COM, reverse starting; switches off, forward.When external terminal control (3) is chosen, X3(stop) and COM are connected to stop button normally close contactor, X1(forward) and COM are connected to forward button normally open contactor, X2(reverse) and COM are connected to reverse button normally open contactor.When external terminal control (4) is chosen, X3(stop) and COM are connected to stop button normally open contactor, X1(forward) and COM are connected to forward button normally open contactor, X2(reverse) and COM are connected to reverse button normally open contactor.When 0-3 auto-adaptation (5) is chosen, inverter can work in all conditions 0-3. Notice: X1 and X2 are both connected to COM, motor reverse rotating is initiated. Special caution: Under conditions in which human safety, production loss or equipment damage are possibly caused, please set this parameter correctly to avoid accidents.