Objectives of the course

  • The participants understand the functional principles of a HEIDENHAIN control, of the drives, the position and speed encoders, the machine tool and the interaction of these components
  • They learn diagnostic possibilities on the control and troubleshooting routines, and how to employ them
  • From error messages and/or error patterns they can locate an error and restore the function of the machine by specifically exchanging units or components

Target group

Specialists for service, maintenance and commissioning


  • Knowledge of NC-controlled machine tools
  • Fundamentals of electronics / electrical engineering
  • Basic computer skills (Windows)

Course contents

TNC controls

  • Components of the TNC 620/TNC 640
  • Display and operation
  • Notes on functional safety
  • Data media and data backup
  • Machine parameters
  • PLC diagnostics
  • HSCI bus diagnosis and HardwareViewer
  • Error messages, log and services files
  • Encoder interface
  • Reference run
  • Interface to the drives
  • Notes on drive generation Gen 3
  • Diagnostics and practical debugging
  • Exchange instructions
  • Subject to change without notice!

Please bring your own computer or notebook, which must meet the following requirements:

  • Microsoft Windows
  • Zip-compatible extraction software
  • Rights to install software
  • USB port with removable media access
  • Ethernet connection (RJ45)
  • Ethernet connection with cable and a configured network environment (Ethernet TCP/IP)

HEIDENHAIN cannot provide any computers or notebooks for the course.

Registration is closed for this class as it has reached its maximum capacity.