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HEIDENHAIN TNC 426CB User Manual

HEIDENHAIN TNC 426CB
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Kundendienst/Service
TN
C
426
C
B/PB
TN
C
430
C
A/
P
A
Service Manual

Table of Contents

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HEIDENHAIN TNC 426CB Specifications

General IconGeneral
Control TypeCNC
Power Supply24 V DC
Operating Temperature0 to 45 °C
Storage Temperature-20 to 70 °C
ProgrammingISO
DisplayLCD
InterfaceRS-232
HumidityMax. 95% relative humidity, non-condensing

Summary

How to Use This Service Manual

Integrated Monitoring System

Minor Error Messages

Causes of minor error messages

Explains the causes for specific minor error messages like 'Operating parameters erased' and 'Limit switch'.

Blinking Error Messages and their Causes

General error messages

Lists general blinking error messages like 'TNC operating temp. exceeded' and their causes.

PLC editor

Details blinking error messages related to the PLC editor and their classifications.

Position encoder interface

Lists blinking errors related to the position encoder interface and their causes.

Speed encoder interface

Lists blinking errors related to the speed encoder interface and their causes.

Analogue axes

Details blinking errors related to analogue axes and their causes, including error location.

Digital axes

Details blinking errors related to digital axes and their causes, including error location.

Hardware Components of TNC 426.B/430.A

LOGIC UNIT LE 426 CB/430 CA

Designation of the logic unit LE 426 PB/430 PA

Details the designation of logic unit LE 426 PB/430 PA, showing component labels.

Hardware components of the logic unit LE 426.B/430.A

Provides an overview of hardware components for different logic unit models.

Connector Designations and Pin Layouts

Connectors on the logic unit LE 426.B/430.A

Details connectors and pin layouts for the LE 426.B/430.A logic unit.

Pin layout of the NC POWER SUPPLY of LE 426 .B/430.A

Shows pin layout for the NC power supply of LE 426 logic units.

Pin layout of the PROCESSOR board of LE 426 .B/430.A

Details pin layout for the processor board of LE 426 logic units.

X21 V.24/RS-232-C data interface

Details pin layout for the V.24/RS-232-C data interface.

X22 V.11/RS-422 data interface

Details pin layout for the V.11/RS-422 data interface.

X23 Serial handwheel

Details pin layout for the serial handwheel connector.

Pin layout at the PLC graphics board of LE 426.B/430.A

Details pin layout for the PLC graphics board.

X41 PLC output

Details pin layout for the PLC output connector.

X42 PLC input

Details pin layout for the PLC input connector.

X46 Machine operating panel

Details pin layout for the machine operating panel MB 420.

Pin layouts at the drive-control board of LE 426.B/430.A

Details pin layouts for the drive-control board of LE 426 logic units.

Connectors on the PLC I/O boards

Connectors on PL 405B

Shows connector layout for the PL 405B board.

Pin layout at PL 405B

Details pin layout for PL 405B at LE or 1st PL.

Connectors on PL 410B

Shows connector layout for the PL 410B board.

Pin layout at PL 410B

Details pin layout for PL 410B at LE or 1st PL.

Connectors on the keyboard units

Connectors on TE 401B/420

Shows connector layout for TE 401B/420 keyboard units.

Pin layout at TE 401B/420

Details pin layout for TE 401B/420 keyboard unit connectors.

Connectors on the visual display unit

Visual display unit BC 110B

Details connectors and checking procedures for the BC 110B display.

Visual display unit BF 120

Details connectors and checking procedures for the BF 120 display.

Connectors on the interface board

Connectors on machine operating panel MB 420

Grounding diagram

Block diagram for motor control

Block diagram of control loop

Board Descriptions

Power Supply

PLC power supply

Specifies voltage ranges and current consumption for PLC power supply.

Power supply of the visual display unit BC 110B

Details power supply specifications and checking procedures for the BC 110B display.

BC 120

Lists power supply specifications for the BC 120 display.

BF 120

Lists power supply specifications for the BF 120 display.

Power supply of the NC (dc-link power supply)

Explains the NC power supply (dc-link) and its terminal connections.

Block diagram of dc-link power supply

Shows the block diagram of the dc-link power supply.

Checking the NC power supply (dc-link power supply)

Guides on checking the NC power supply, including voltage measurements.

Power supply of the PLC

Details power supply for PLC and analogue inputs.

Block diagram of PLC power supply

Shows the block diagram of the PLC power supply.

Buffer battery

Info Menu

Keyboard Unit TE 401B/420

Overview

Provides a visual overview of the TE 401B and TE 420 keyboard units.

Checking the keyboard unit

Explains how to check keyboard unit functions using a test adapter.

Key matrix of the keyboard unit

Provides a key matrix for the keyboard unit, mapping keys to pins.

Key matrix of the VDU keys

Shows the key matrix for VDU keys on BC 110B.

Checking the potentiometers

Details how to check potentiometers using a test adapter.

Machine operating panel MB 420

Explains checking PLC inputs to the MB 420 machine operating panel.

Visual Display Units

Checking the visual display unit BC 110B

Guides on checking the BC 110B display for proper function.

Checking the visual display unit BC 120

Guides on checking the BC 120 display for proper function.

Checking the visual display unit BF 120

Guides on checking the BF 120 display for proper function.

Encoder Interface

Position encoder circuit

Details position encoder inputs on the processor board and common error causes.

Locating an error in the position encoder circuit

Provides a method to locate errors in the position encoder circuit using machine parameters.

Flowchart to locate an error in the position encoder circuit

A flowchart for diagnosing position encoder circuit errors.

Speed encoder circuit

Details speed encoder inputs and common error causes.

Flowchart to locate an error in the speed encoder circuit

A flowchart for diagnosing speed encoder circuit errors.

Electrical inspection of an encoder

Explains how to perform electrical inspection of encoders using diagnostic tools.

Serial Handwheels

Handwheel HR 130/330

Details the HR 130/330 handwheel, its adapter, and data transfer checking.

Checking data transfer of the handwheel HR 130/330

Explains how to check data transfer for HR 130/330 using an oscilloscope.

Checking the keys of the handwheel HR 330

Explains how HR 330 keys are evaluated based on machine parameters.

Handwheel HR 332

Details the HR 332 handwheel, its adapter, and data transfer checking.

Checking data transfer of the handwheel HR 332

Explains how to check HR 332 data transfer using an oscilloscope.

Checking the keys of the handwheel HR 332

Explains how HR 332 keys and LEDs are assigned based on machine parameters.

Handwheel HR 410

Details the HR 410 handwheel, internal wiring, and data transfer checking.

Checking data transfer of the handwheel HR 410

Explains how to check HR 410 data transfer using an oscilloscope.

Checking the keys on handwheel HR 410

Explains how HR 410 keys are evaluated by NC or PLC based on machine parameters.

Error Messages

3-D Touch Probes

Overview

Provides an overview of touch probes for calibration and digitizing.

Error Messages

Lists error messages encountered in probing mode, such as 'Touch point inaccessible'.

Error messages in the probing mode

Continues listing error messages for probing mode.

Error messages when digitizing 3-D contours

Lists error messages specifically for digitizing 3-D contours.

File Management of TNC 426.B/430.A

Structure of the hard disk

Describes the three partitions (TNC, PLC, SYS) of the hard disk.

TNC partition (TNC:\)

Details how to call and navigate the TNC partition.

Calling the TNC partition

Explains how to access and view files within the TNC partition.

Overview of the files in the TNC partition

Lists file types and their extensions stored in the TNC partition.

PLC partition (PLC:\)

Details how to call and navigate the PLC partition.

Calling the PLC partition

Explains how to access and view files within the PLC partition.

Overview of the files in the PLC partition

Lists file types and their extensions stored in the PLC partition.

Compiling the PLC program

Describes the process of compiling PLC programs and loading them into the editor.

Calling the PLC error table (<Name>.PET) for diagnosis

Explains how to call and use PLC error tables for diagnosis.

Generating a cross-reference list for diagnosis

Guides on generating cross-reference lists for PLC program diagnosis.

Calling the active machine parameter list

Explains how to call and view the active machine parameter list.

Data Interfaces

Operating Modes of the Data Interfaces

Describes the five interface operating modes for data transfer.

Interface configuration and allocation of operating modes

Details interface configuration and allocation of operating modes for data interfaces.

Machine parameters for the data interfaces

Explains how machine parameters control data interface settings.

Error Messages

Lists error messages that can occur with the TNC in FE mode, categorized by error type.

Error messages at the TNC in the FE mode

Continues listing FE mode error messages, categorized by I/O, write/read, and disk errors.

Error messages during data transfer

Lists error messages related to data transfer issues.

Wiring diagrams of the data interfaces

Provides wiring diagrams for V.24/RS-232-C data interfaces.

V.11/RS-422 data interface

Shows wiring diagram for the V.11/RS-422 data interface.

Data Input and Output

Data transfer menu

Explains how to access and use the data transfer menu.

Overview of files in TNC 426.B/430.A

Lists files stored in the TNC and PLC partitions for data transfer.

Data output

Describes the process of outputting files to external media.

Output of files with the extension .H, TOOL.T, .I, .P, .D, .A, TOOL_P.TCH

Details outputting specific file types to external media.

Output of files with the extension .PLC, .A, .HLP, .SYS, .COM, .CMA, .PET

Details outputting other file types to external media.

Data input

Explains the preparations and procedure for data input.

Input of files with the extension H, TOOL.T, .I, .P, .D, .A, TOOL_P.TCH

Details inputting specific file types from external media.

Input of the machine parameter list <NAME>.MP

Details inputting machine parameter lists from external media.

Input of files with the extension .PLC, .A, .HLP, .SYS, .COM, .CMA, .PET

Details inputting other file types from external media.

Interface to the Servo Amplifier

Nominal value output to servo amplifier (analogue/digital)

Explains analogue and digital nominal value output configurations for servo amplifiers.

Analogue speed nominal value interface at connector X8/X9

Details specifications for the analogue speed nominal value interface.

Specifications of the analogue outputs

Lists specifications for analogue outputs at connectors X8/X9.

Checking the analogue speed nominal value interface

Guides on checking the analogue speed interface using a test adapter or multimeter.

Digital interface to the servo amplifier, connectors X51 - X56/X61

Introduces the digital interface and checking procedures.

Checking the digital speed nominal value interface

Explains how to check the digital speed interface using a DCG.

Switching over the position display for servicing

Explains how to switch the position display for servicing purposes.

Adjustment of the feed rate at the servo amplifier

Guides on adjusting feed rate for analogue and digital axes.

Analogue axes

Details feed rate adjustment for analogue axes via machine parameters and offset adjustment.

Offset adjustment

Explains offset adjustment procedures for analogue and digital axes.

Integrated oscilloscope

Describes how to activate and use the integrated oscilloscope for signal recording.

PLC Interface

Specifications

Details specifications for PLC inputs and outputs.

Checking the PLC inputs and outputs

Guides on checking PLC inputs and outputs using a test unit.

Diagnosis in the PLC mode

Explains diagnosis methods in PLC mode, starting with TRACE mode.

TRACE mode

Describes the TRACE mode for controlling logic states and checking PLC program contents.

LOGIC diagram

Explains how to activate and use the LOGIC diagram for PLC scan tracing.

Selecting the operands and start of tracing

Details how to select operands and start tracing in the PLC.

TABLE function

Explains the TABLE function for viewing PLC states and switching display formats.

Output "Control is ready" and acknowledgement

Discusses the "Control is ready" output and its acknowledgement for testing.

Wiring of the EMERGENCY STOP interface

Shows the wiring diagram for the EMERGENCY STOP interface.

TNC 426 flowchart

Provides a flowchart for the TNC 426 EMERGENCY STOP routine.

TNC 430 flowchart

Provides a flowchart for the TNC 430 EMERGENCY STOP routine.

Non-volatile PLC markers and words

Explains how to back up and reload non-volatile PLC data on the hard disk.

Data backup on hard disk

Details the procedure for backing up PLC data on the hard disk.

Playing back data into RAM

Explains how to play back backed-up PLC data into RAM.

Test Units

Universal Measuring Adapter

Describes the universal measuring adapter for testing connector inputs/outputs.

Encoder Diagnostic Set

Introduces the encoder diagnostic set for testing encoder electrical functions.

Drive control generator (DCG)

Introduces the Drive Control Generator (DCG) and its specifications.

Exchange Instructions

Important notes

Lists important notes and safety instructions before starting component exchange.

Required equipment

Lists the necessary equipment for component exchange.

MOS protection

Explains the necessity and procedure for MOS protection during EPROM exchange.

Software compatibility

Discusses software compatibility for exchange units and boards.

Exchanging the NC software PGM-No. 280 470 - 473 --

Details the procedure for exchanging NC software, including backup and status setup.

RAM data

Explains how RAM data is backed up and restored during software exchange.

Bringing the machine or the axes into a defined status

Describes how to prepare the machine and axes before software exchange.

Converting data on the hard disk from binary format to ASCII format

Explains how to convert hard disk data from binary to ASCII format.

Exchanging EPROMs

Provides instructions and location diagrams for exchanging EPROMs.

Putting the control into service

Details steps for putting the control into service after software or hardware changes.

Converting the files on the hard disk from ASCII format to binary format

Explains how to convert hard disk data from ASCII back to binary format.

Installing current system data on hard disk

Guides on installing system data from a setup disk onto the hard disk.

Re-establishing the original state of the machine tool

Describes procedures to restore the machine tool to its original state after exchange.

Backing up hard-disk data

Exchanging the LOGIC UNIT

Preparations at the machine tool

Outlines preparations at the machine tool before exchanging the logic unit.

Important information on the hard disk

Provides crucial information regarding hard disk data when exchanging the logic unit.

Dismounting the LOGIC UNIT

Details the steps for safely dismounting the logic unit.

Mounting the LOGIC UNIT

Describes the procedure for mounting the logic unit.

Exchanging the hard disk

Machine Parameter List

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