HEIDENHAIN ND 1300 CNC Setup - Manual (Page 10)

Introduction
Chapter 1:
Introduction
CNC measuring systems include a wide variety of electro-mechanical designs that satisfy an even wider
variety of applications. Servo or stepper motors move large or small masses to perform precision mea-
surements using optical edge detection or video edge detection probes. Always, users strive to maximize
throughput and minimize downtime.
The trade-offs regarding throughput and downtime become important as a CNC system is operated near
its performance limits. Generally, more robust electro-mechanical systems can be tuned to operate closer
to their limits than systems with less mechanical stability and lower performance motor drive systems.
However, operating any system close to its performance limits can result in:
• Difficult PID loop tuning
• Increased PID retuning due to environmental changes or equipment aging
• Accelerated equipment wear
These problems are minimized when systems are tuned to meet, but not far exceed the performance re-
quired by their measurement applications.
This guide contains the following information:
Chapter 2: Setting CNC motor direction
Chapter 3: CNC setup
Safety first!
The procedures contained in this guide might require some operation of axis motors
under open-loop or uncontrolled conditions. These operations must be conducted
while following these instructions with great care to avoid serious personal injury or
equipment damage resulting from motor runaway.
The following procedures are generic in the sense that they are intended to be applied to a wide variety of
CNC systems. Safety was always a first priority in the creation of this guide, and while the procedures
have been tested and shown to have eliminated potential safety hazards, it is ultimately the responsibility
of the person using this guide to make decisions related to safety. Whenever there is a conflict between the
material in this guide and the judgments of the user or the safety policies of the user’s company, the more
stringent safety rules should take precedence.