M-10iD/12 joint 1 rotation limits

Good day,

The M-10iD/12 manual states that J1 has a maximum stroke of ±185°. I've got something where I need J1 to go as far as -240° but only at T1 speeds. Does anyone know if this is possible to do without damaging any cables or connections?

Thanks.

Well, same problem going the other way, I'll need to go to +240° which is probably also not doable.