procedure TForm1.Button1Click(Sender: TObject);
begin
ZQuery1.Open; // ZQuery.Active:=true it's the same
ZQuery1.Insert;
ZQuery1.FieldByName('numero').AsInteger:=StrToInt(Edit1.Text);
ZQuery1.FieldByName('fecha').AsDateTime:=Now; //now();
ZQuery1.FieldByName('nombre').AsString:=Edit1.Name; // Error
ZQuery1.Post;
end;