Refurbishment of Folding Machine.

The system is based on a high performance Programmable Logic 
Controller (PLC)  with a menu driven  user interface 
and can control a folding machine of upto three axis.

The backgauge is controlled by a vector inverter powering a three 
phase motor using a rotary  encoder for positional feedback providing 
a resolution of 0.1mm.  In order to optimise performance three 
positional speeds are utilised.

The fold beam and clamp are both  hydraulically controlled with the 
fold beam position  measured by a rotary incremental encoder. 
Clamp height is controlled by a function of time only.

A Safe Point feature is implemented within the clamp movement 
such that should the  height be in excess of 30mm pressing the 
Clamp Down foot pedal will bring the  clamp to the safe point 
then stop.  A second press is required to bring the clamp 
down to closed position.

The system contains 200 memory locations which can be configured 
to give a quantity of programs depending on the number of steps 
per program.