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HEIDENHAIN TNC 426 User Manual

HEIDENHAIN TNC 426
502 pages
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NC Software
280 476-xx
280 477-xx
Users Manual
HEIDENHAIN Conversational
Format
10/2001
TNC 426
TNC 430

Table of Contents

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HEIDENHAIN TNC 426 Specifications

General IconGeneral
Control TypeCNC
Input Voltage24 V DC
ProgrammingHEIDENHAIN
InterfaceRS-232
Operating Temperature0°C to 45°C
Storage Temperature-20 to 70 °C
Humiditynon-condensing

Summary

1 Introduction

1.2 Visual Display Unit and Keyboard

Description of the TNC's display unit, keyboard layout, and key functions.

1.3 Modes of Operation

Explanation of different operating modes like Manual Operation, MDI, Programming/Editing, and Test Run.

2 Manual Operation and Setup

2.1 Switch-on, Switch-off

Procedure for safely powering on and off the TNC control and machine tool.

2.2 Moving the Machine Axes

Methods for manually positioning machine axes using direction buttons or electronic handwheels.

2.4 Datum Setting(Without a 3-D Touch Probe)

Steps for setting datums manually when a 3-D touch probe is not used.

3 Positioning with Manual Data Input (MDI)

3.1 Programming and Executing Simple Machining Operations

Using MDI for simple machining tasks, pre-positioning, and writing/executing short programs.

4 Programming: Fundamentals of NC, File Management, Programming Aids, Pallet Management

4.3 Standard File Management

Procedures for calling, selecting, deleting, copying, and transferring files using standard management.

4.5 Creating and Writing Programs

Steps for organizing NC programs, defining blank forms, and writing tool movements.

4.11 Immediate Help for NC Error Messages

Accessing and understanding error messages for quick problem resolution.

5 Programming: Tools

5.1 Entering Tool-Related Data

Inputting feed rate and spindle speed for tools in TOOL CALL blocks.

5.2 Tool Data

Requirements for tool compensation, numbering, naming, length, and radius.

5.3 Tool Compensation

Explanation of tool length and tool radius compensation principles and application.

6 Programming: Programming Contours

6.2 Fundamentals of Path Functions

Programming tool movements using coordinates, main planes, and multiple axes.

6.4 Path Contours — Cartesian Coordinates

Programming contours using Cartesian coordinates, including lines, chamfers, circles, and FK.

7 Programming: Miscellaneous functions

7.1 Entering Miscellaneous Functions M and STOP

Using M functions for program control, spindle, coolant, and program interruption.

8 Programming: Cycles

8.1 Working with Cycles

Methods for defining and calling cycles using soft keys or GOTO function.

8.3 Cycles for Drilling, Tapping and Thread Milling

Detailed explanation of various cycles for drilling, tapping, and thread milling operations.

8.4 Cycles for milling pockets, studs and slots

Cycles for machining various shapes like pockets, studs, and slots.

8.5 Cycles for Machining Hole Patterns

Cycles for creating circular and linear patterns of holes.

8.8 Coordinate Transformation Cycles

Applying transformations like datum shift, mirror, rotation, scaling, and working plane tilting.

9 Programming: Subprograms and Program Section Repeats

9.2 Subprograms

Operating sequence, programming notes, and calling subprograms for modular programming.

10 Programming: Q Parameters

10.1 Principle and Overview

Introduction to Q parameters for variable programming and mathematical functions.

10.2 Part Families – Q Parameters in Place of Numerical Values

Using Q parameters to program families of parts with variable dimensions.

10.7 Checking and changing Q parameters

Procedures for checking and modifying Q parameter values during program execution.

11 Test run and Program Run

11.3 Test run

Simulating programs to detect errors like geometrical incompatibilities or missing data.

11.4 Program run

Executing programs in Full Sequence or Single Block modes, including interruptions.

12 MOD Functions

12.4 Setting the Data Interfaces

Configuration of RS-232, RS-422, and Ethernet interfaces for data transfer.

13 Tables and Overviews

13.4 Exchanging the Buffer Battery

Procedure for replacing the TNC's buffer battery to prevent data loss.

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