XL200CL Series Closed Loop Controller

OPERATION AND DESCRIPTION

The XL200CL Series Controller is an electronic length controller that is part of a Closed Loop control system. There are two basic types of Closed Loop control system. The Closed Loop Die Accelerator is used on flying die machines. The Closed Loop Roll Feeder is used on feed-to-stop machines. Details of each system are stated below

DIE ACCELERATOR SYSTEM

The system consists of an electronic length controller, such as an XL200CL Series Controller, a material encoder, a servo system, and an accelerator. The material is driven through a press by a roll former or feed system. The XL200CL Series Controller measures the material movement. When the cut or punch point is near the press the XL200CL Series Controller accelerates the cutoff or punch die via servo system and accelerator. When the die has matched line speed exactly, the press is triggered, and the part is punched or cut. Once the die is clear of the material, the die is returned home and ready for another target.

AMS has incorporated many features that make the XL200CL Series Controller the most advanced die accelerator controller available. These features include:

• Die Accelerator Test
• Intelligent Die Positioning
• Graphical Performance Screen
• High Performance 1ms Loop - Tuned Specifically for Die Accelerator Applications
• Tuning Parameters for Hydraulic Accelerator Applications
• Auto-Tuning of Critical Performance Parameters

DIE ACCELERATOR TEST

• The XL200CL Series Controller has a unique test feature that simulates a test run without wasting any material. The operator specifies the part length, line speed, and desired tolerance. The XL200CL Series Controller generates internal encoder signals that mimic the roll former in action. It then accelerates the die and cycles the press just like a normal run. In addition, a graphics display and tolerance screen allow the user to view how the system is performing.

A block diagram of the Closed Loop Die Accelerator System is shown below.

ROLL FEED SYSTEM

The system consists of an electronic length controller, such as the XL200CL Series Controller, and a servo feed system. The material encoder is optional on this system. The material's position and velocity are controlled by the XL200CL Series Controller via the servo feed system. The amount of material movement is measured by an encoder which is coupled to the motor (resolver). The controller is able to keep track of the exact position of the material, control its acceleration and velocity, and stop at its pre-programmed punch or cut length. For heavy material feeds, a second encoder can be added to ride directly on the material. This encoder is used to verify there is no slippage.

A block diagram of the Roll Feed System is shown below.

GRAPHICAL PERFORMANCE SCREEN

Closed Loop control systems are finely tuned, highly accurate systems. There are many instances where it is beneficial to view the performance of your closed loop system in graphical form. AMS has incorporated a Closed Loop graphics screen for this very purpose. Click the thumbnail below for a larger view of the Graphics screen.

CONTROLLER CONFIGURATIONS

The XL200CL Series Controller is available in the following configurations:

ORDERING OPTIONS

The XL200CL Series Controller system can be ordered:

• As a retrofit to an existing line
• Provided in an AMS designed and manufactured console
  • See Complete Control Systems and Tru-Trac Die Accelerator
• Specified as part of a new line through an equipment manufacturer

Ready to get more from your machine? Just call us toll free at 1-800-334-5213 to find out more about the XL200CL Series Controller - your key to a better product and a better line.