Control funtion:any angle rotation, axis
symmetry, graph expansion and shrinkage, retreat, returning
the starting point, auto-centering and auto shut off of
facilities after process completion;
Max program storage:2000 sections;
Shortcircuit treatment: Auto-retreat upto
the elimination of shortcirecuit;
Wire breakage treatment: Stop and return
to the starting point;
Quick check the error of program reset;
Have memory of closing electrical power,
resume processing the function after connecting the electricity;
