operating manual 280474

Kundendienst/Service

TNC 426CB/PBTNTNCC 430 430CCA/A/PPAA

Service Manual

* SERVICE MANUAL *TNC 426 CB/PBTNC 430 CA/PA

Changes/DevelopmentsWe are constantly working on technical improvements of our products.For this reason, details described in this manual may differ slightly fromyour control. In this case, please order a revised service manual from us.

DuplicationThis manual is provided subject to the condition that no part of it shall be duplicated in anyform without our prior consent.

Issue 01/2001valid for the software versions TNC 426.B/430.A: NC software 280 470 (standard)

TNC 426.F/430.E: NC software 280 471 (export)TNC 426.B/430.A: NC software 280 472 (standard, new)TNC 426.F/430.E: NC software 280 473 (export, new)

2324

1314

1617

19202122

15

18

12

45

789

101112

3

6

2526

Contents Service Manual TNC 426 CB/PB, TNC 430 CA/PA

How to use this service manual

Integrated monitoring system

Minor error messages

Bilinking error messages and their causes

Hardware components TNC 426 B, TNC 430 A

Logic unit LE TNC 426 CB, TNC 430 CA

Connector designation and pin layouts

Grounding diagram

Block diagrams

Board description

Power supply

Keyboard units TE 401B/420

Visual display units

Encoder interface

Serial handwheels

3-D touch probes

File management of TNC 426 B, TNC 430 A

Data interfaces

Data input and output

Interface to the servo amplifier

PLC interface

Test units

Exchange instructions

Optical displays on HEIDENHAIN units

Machine parameter list

Annex


Service Manual TNC 426.B/430.AContents

AusgabeIssue03.09.98

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ContentsPage

1. How to use this service manual........................................................................................................3

2. Integrated monitoring system...........................................................................................................42.1 Log function of TNC 426.B/430.A ...................................................................................................... 4.1

3. Minor error messages........................................................................................................................53.1 Causes of minor error messages .........................................................................................................6

4. Blinking error messages and their causes......................................................................................94.1 General error messages .....................................................................................................................104.2 PLC editor ...........................................................................................................................................134.3 Position encoder interface...................................................................................................................204.4 Speed encoder interface .....................................................................................................................204.5 Analogue axes.....................................................................................................................................214.6 Digital axes..........................................................................................................................................22

5. Hardware components of TNC 426.B/430.A ...................................................................................29

6. Logic unit LE 426CB/430CA .............................................................................................................306.1 Logic unit LE 426CB/430CA ...............................................................................................................306.2 Logic unit LE 426PB/430PA................................................................................................................316.3 Hardware components of the logic unit LE 426.B/430.A.....................................................................32

7. Connector designations and pin layouts........................................................................................337.1 Connectors on the logic unit LE 426.B/430.A .....................................................................................337.2 Connectors on the PLC I/O boards .....................................................................................................597.3 Connectors on the keyboard units ......................................................................................................687.4 Connectors on the visual display unit..................................................................................................707.5 Connectors on the interface board......................................................................................................737.6 Connectors on the machine operating panel MB 420 .........................................................................74

8. Grounding diagram ...........................................................................................................................75

9. Block diagrams .................................................................................................................................76Basic circuit diagram of motor control .................................................................................................76Block diagram of control loop..............................................................................................................77Detailed block diagram of digital axis ..................................................................................................78

10. Board description .............................................................................................................................79

11. Power supply.....................................................................................................................................8011.1 Requirements to the external power supply ........................................................................................8011.2 Power supply of the NC part (dc-link power supply) ...........................................................................8611.3 Checking the power supply of the NC part (dc-link power supply)......................................................8811.4 Power supply of the PLC part..............................................................................................................8911.5 Buffer battery.......................................................................................................................................9111.6 INFO menu..........................................................................................................................................92

12. Keyboard unit TE 401B/420 ..............................................................................................................9312.1 Overview .............................................................................................................................................9312.2 Checking the keyboard unit.................................................................................................................94

13. Visual display units..........................................................................................................................10413.1 Checking the visual display unit BC 110B..........................................................................................10413.2 Checking the visual display unit BC 120 ............................................................................................10513.3 Checking the visual display unit BF 120 ............................................................................................107

14. Encoder interface .............................................................................................................................10814.1 Position encoder circuit ......................................................................................................................10814.2 Speed encoder circuit ........................................................................................................................11114.3 Checking an encoder .........................................................................................................................113


Service Manual TNC 426.B/430.AContents


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Page15. Serial handwheels....................................................................................................................................11515.1 Handwheel HR 130/330 .............................................................................................................................11515.2 Handwheel HR 332 ....................................................................................................................................11715.3 Handwheel HR 410 ....................................................................................................................................11915.4 Error messages..........................................................................................................................................121

16. 3-D touch probes......................................................................................................................................12216.1 Overview ....................................................................................................................................................12216.2 Error messages..........................................................................................................................................124

17. File management of TNC 426.B/430.A ....................................................................................................12717.1 Structure of the hard disk ...........................................................................................................................12717.2 TNC partition (TNC:\) .................................................................................................................................12817.3 PLC partition (PLC:\) ..................................................................................................................................13017.4 Compiling the PLC program .......................................................................................................................13217.5 Calling the PLC error table (x.PET) for diagnosis.......................................................................................13317.6 Generating a cross-reference list for diagnosis ..........................................................................................13417.7 Calling the active machine parameter list.... ...............................................................................................13517.8 Switching over the position display for servicing.... .................................................................................... 135.2

18 Data interfaces .........................................................................................................................................13618.1 Operating modes of the data interfaces .....................................................................................................13618.2 Machine parameters for the data interfaces ...............................................................................................13818.3 Error messages..........................................................................................................................................13918.4 Wiring diagram of the data interfaces.........................................................................................................141

19. Data input and output ..............................................................................................................................14319.1 Data transfer menu ....................................................................................................................................14319.2 File overview TNC 426.B/430.A .................................................................................................................14419.3 Data output.................................................................................................................................................14419.4 Data input...................................................................................................................................................148

20. Interface to the servo amplifier ...............................................................................................................15220.1 Nominal value output to servo amplifier (analogue/digital) .........................................................................15220.2 Analogue speed nominal value interface at connector X8/X9 ....................................................................15320.3 Digital interface to the servo amplifier, connectors X51 - X56/X61.............................................................15620.4 DSP monitor for digital axes.......................................................................................................................15820.5 Adjustment of the feed rate at the servo amplifier ......................................................................................15920.6 Offset adjustment .......................................................................................................................................16020.7 Integrated oscilloscope...............................................................................................................................162

21. PLC interface ............................................................................................................................................16621.1 Specifications .............................................................................................................................................16621.2 Checking the PLC inputs and outputs ........................................................................................................16721.3 Diagnosis in the PLC mode........................................................................................................................17021.4 Output "Control is ready" and acknowledgement for test

"Control is ready"........................................................................................................................................17421.5 Non-volatile PLC markers and words .........................................................................................................179

22. Tests units ................................................................................................................................................18122.1 Universal measuring adapter .....................................................................................................................18122.2 Encoder diagnostic set ...............................................................................................................................18322.3 Drive control generator (DCG) ...................................................................................................................18523. Exchange instructions.............................................................................................................................18823.1 Important notes ..........................................................................................................................................18823.2 Exchanging the NC software PGM no. 280 470 - 473 -- ............................................................................18923.3 Backing up hard-disk data..........................................................................................................................19823.4 Exchanging the logic unit ...........................................................................................................................19923.5 Exchanging the drive assembly (hard disk) ................................................................................................20224. Optical displays on HEIDENHAIN units..................................................................................................20424.1 on the interface boards for Simodrive 611D ...............................................................................................204

25. Machine parameter list ............................................................................................................................207

26. Annex ........................................................................................................................................................20826.1 7 bit ASCII code .........................................................................................................................................20826.2 Powers of 2 ................................................................................................................................................212


Service Manual TNC 426.B/430.AHow to use this Service Manual


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1. How to Use This Service ManualThe service manual TNC 426.B/430.A can be used to diagnose, locate and eliminate errors on machinetools controlled by TNC.

In order to correctly judge the problems in an NC-controlled machine tool, fundamental knowledge of the machinetool and its drives as well as their interaction with the control and the measuring systems is required. Incorrectbehaviour of the machine tool can also result from improper use of the control, NC-programming errors andincorrect or not properly optimized machine parameters.

For further information in this respect please refer to the

Documentation of the machine tool manufacturer Operating Manual (HEIDENHAIN) Technical Manual (HEIDENHAIN). CD-ROM TNC-GUIDE (HEIDENHAIN)

Note on the error description in this service manual:The number in square brackets refers to the number of the error message in the error catalogue on CD-ROM;this catalogue can be called by clicking on "NC Error Messages" in the TNC Guide.

The Technical Manual is not enclosed with every control.In general, it is only supplied to the machine tool manufacturer and is updated by HEIDENHAIN, Traunreut.Therefore, it is absolutely necessary to contact the machine tool manufacturer, if errors occur that are dueto a machine parameter or to the interface of the control. Support will, however, also be provided by theHEIDENHAIN service department and agencies.Telephone numbers, addresses and telex/fax numbers can be found on the inner page of the cover page and theback side of this service manual or on our homepage under http://www.heidenhain.de.


Service Manual TNC 426.B/430.AIntegrated monitoring system


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2. Integrated Monitoring SystemTNC 426.B/430 features a comprehensive integral monitoring system to avoid input and operation errors,to locate errors and technical defects of the entire equipment (TNC, measuring systems, machine tool,cables etc.). The monitoring system is a fixed component of the TNC hardware and software; it is always activewhen the control is switched on. If a technical defect or an operation error is detected, an error message isdisplayed on the screen in plain language.

During operating the TNC monitors

the amplitude of the encoder signals the edge separation of the encoder signals the absolute position of encoders with distance-coded reference marks the current position (monitoring of servo lag) the path actually traversed (movement monitoring) the position deviation in standstill the nominal shaft speed the CRC sums of EPROM and RAM the supply voltage the voltage of the buffer battery the operating temperature of the logic unit the run time of the PLC program

With digital axes the TNC monitors in addition

the motor current the motor temperature the temperature of the power module the dc-link power the supply voltage of the power stage


Service Manual TNC 426.B/430.A2. Integrated monitoring system


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2.1 Log Function of TNC 426.B/430.AIn the TNC 426.B/430.A a log with approx. 50 000 entries is created continuously and updated according to theFIFO principle. The last key inputs, control reset, error messages, blinking error messages with registerstatus, defective clusters on the hard disk are entered into this log.At the moment the message *** POWER FAIL *** (see section Power supply) is not yet entered.The log is transferred via data interface with the TNCremo data transfer software (Id.No. 280 481 --, English).Starting from software version 280 472/473 the log can also be called in the control by entering the code numberLOGBOOK.

Excerpt from a log file transferred with TNCremo

___Date: 4-Mar-1998___Key: 0x01A8 -> Enter 05:40:43Blinkerror: 05:41:20 File system error ERegisters(Blinkerror): 05:41:20D0-3 00000000 0000FFFF 00000000 00000010 4-7 00000008 00000010 00003780 00000000A0-3 FFFFFFA0 FFFFFFC0 02C0A000 FFE26200 4-7 FFE7C3DC 02C0A002 FFC33EE4 FFC33E20FM FFFF VO FFFF SR 0020PC 004A762AReset 05:41:37Error: 05:41:39 NC: program memory erasedKey: 0x01AE -> CE 05:41:57Error: 05:41:57 Power interruptedKey: 0x01AE -> CE 05:41:59Error: 05:42:00


Service Manual TNC 426.B/430.AMinor error messages


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3. Minor Error Messages

Minor (non-blinking) error messages can be cleared by pressing CE .By pressing

HELP auxiliary information on the non-blinking error message currently displayed can be called

as of NC software 280 472/473.

Further error messages are described in thez Operating Manual (HEIDENHAIN)z Technical Manual (HEIDENHAIN)z CD-ROM TNC-GUIDE (HEIDENHAIN)z Documentation of the machine tool manufacturer

Error message displayed SectionAxis double programmed 16.2Start position incorrect 16.2Touch point inaccessible 16.2Baud rate not possible 18.3Range exceeded 16.2Operating parameters erased 3.1Cycle parameter incorrect 16.2Faulty range data 16.2Rotation not permitted 16.2Plane wrongly defined 16.2Limit switch 3.1Ext. input/output not ready 18.3Input of further programs not possible 18.3Wrong axis programmed 16.2Incorrect entry in MP 16.2Handwheel ? X 15.4Handwheel not ready 15.4Language load error XX 3.1Scaling factor not permitted 16.2Measuring touch probe selected 16.2

Error message displayed SectionMP: 3.1PLC program not translated 3.1Positioning error 3.1Program incomplete 18.3Program memory overflow 3.1Exchange buffer battery 11.5Triggering touch probe selected 16.2Interface already assigned 18.3Mirroring not permitted 16.2Relay ext. dc voltage missing 3.1Power interrupted 3.1Update the system data 3.1System memory overflow 3.1Stylus deflection exceeds max. 16.2Stylus already in contact 16.2Calibrate touch probe 16.2Probe system not ready 16.2Probe system not ready 16.2Data transfer erroneous 18.3

NoteThe number in square brackets is the number of the error message in the error catalogue on CD-ROM.




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3.1 Causes of minor error messages

Operating parameters erased [947] When the control is booted after power-on for the first time (new and exchange controls);

When the control is booted for the first time after a software exchange; Defective buffer batteries and (Gold) capacitor; RAM error on the processor board; When the control is booted for the first time after a reset of the non-volatile PLC markers and words

by means of code number 531210.

Limit switch [58] "Manual operating mode

The preset software limit switch has been reached when traversing with the axis-direction buttons. "Automatic operating mode

The calculated position of the current block is beyond the software limit switch range or beyondthe additional limit (set by pressing the soft key >TRAVERSE RANGE




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Update the system data! [1845]During the power-on routine the control checks in the file SYS:\HDDVERS.A whether the current data(cycles, output templates, drive data etc.) are stored on harddisk. If this is not the case, the error messageis output. To update the data a setup must be executed with the file disk.(see section: Software Exchange)

System memory overflow! [1810]The memory available in the TNC is insufficient to perform complicate calculations (e.g. FK graphics, programverification graphics, oscilloscope etc.).Press CE to confirm the error message and restart the function.

Program memory exceeded! [939]The TNC hard disk is full.Programs which are not needed any more are deleted!

LANGUAGE LOAD ERROR XXThe current NC dialogues are not stored on the hard disk. To update the data a setup must be executedwith the file disk.(see section: Software Exchange)Customized error messages by the machine tool manufacturerIf machine parameter MP 4020, bit 3 = 1, a PLC error message is generated in the PLC program by meansof the error markers M2924 to M3023.The customized text is stored in an text file (ASCII) specified in OEM.SYS in the line PLCERROR =.If machine parameter MP 4020, bit 3 = 0, a PLC error message is generated in the PLC error table (PET).See section 17.5

marker 2924to to set

< Customized text> marker 3023




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MP: line w/o number [151]Machine parameter input error:A line was found without a machine parameter number (not an empty line or comment).

MP: incorrect number [152]Machine parameter input error:The given machine parameter does not exist (incorrect number).

MP: separator missing [153]Machine parameter input error:No separator was found between the number and the value of the machine parameter.

MP: input value incorrect [154]Machine parameter input error:The input value for the machine parameter is incorrect.

MP: defined twice [155]Machine parameter input error:A machine parameter has been defined twice.

MP: not defined [156]Machine parameter input error:A machine parameter is not defined. The line is generated automatically.

MP: saving not possible [157]Machine parameter input error:The machine parameter cannot be saved.

MP: contradictory input [158]Machine parameter input error:The values entered for the machine parameters are contradictory, which results in a conversion error.


Service Manual TNC 426.B/430.ABlinking error messages and their causes


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4. Blinking Error Messages and their CausesThe integrated monitoring system distinguishes between minor and gross errors. Gross errors are characterized bya blinking display (e.g. malfunctions of the encoders and the drives, data processing errors).A red window is displayed on the screen which can be moved with the cursor keys.In the first line of this window the error message is displayed in plain language. Moreover the contents of importantregisters are displayed.

Operating-system error messages

Operating-system error messages are displayed as white letters on black screen in English language.Please contact HEIDENHAIN if an operating-system error message (white letters on black screen) is generatedand the machine switches off.If possible, the operating-system error messages are also entered in the TNC log.The last operating-system error message is stored in the PLC partition in PLC:\ERROR.JOU.

Special case: If the monitoring of the NC power supply (connector X31) has responded, the message*** POWER FAIL *** is displayed (see section Power supply).At present the message is not entered in the log.

If a gross error occurs, the control opens the contact "Control is Ready" which causes an emergency stop ofthe machine tool.By switching off the power switch or by pressing

END

, the emergency stop status can be reset provided that the

error cause was corrected.

In this service manual the blinking error messages are divided into several groups in order to get a betteroverview.

Section 4.1 General error messagesSection 4.2 PLC editorSection 4.3 Position encoder interfaceSection 4.4 Speed encoder interfaceSection 4.5 Analogue axes / spindleSection 4.6 Digital axes / spindle


Service Manual TNC 426.B/430.A4. Blinking error messages and their causes


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4.1 General error messages

Blinking display Error cause

TNC operating temp. exceeded

[204]

EMERGENCY STOP defective

[203]

Position control time too short

EMERGENCY STOP PLC

[205]

Ext. relay DC voltage missing

The temperature inside the logic unit is higher than + 70

Error during the test routine for the output "Control is ready"when the machine is switched on (see also section 21.4)

Error cause:In case of an operation with a high processor utilization, thecycle time of the position controller is not sufficient any more.Error elimination:If the error message is generated repeatedly, the cycle timeof the position controller can be increased via the machineparameters.Please contact the machine tool builder for more information!

This error message is displayed if marker M2815 is set withoutadditional marker (M2924 - M3023).(Only if machine parameter MP4020 bit 3 = 1).

No PLC supply voltage available at connector X44.

Checksum error YX

Checksum error

Incorrect include-file version

The TNC has detected a CRC checksum error duringoperation1)

YA CRC sum of the CPU EPROM CHIP 1/2YB CRC sum of the CPU EPROM CHIP 3/4

Y = CPU number 1 = host computer2 = DSP

The TNC has detected a CRC checksum error during thepower-on routine1)

Error cause:The hardware of the logic unit is equipped with a hardwarefunction for which the NC software and the machine are notprepared.Error elimination:Please contact the machine tool builder.

CRC = Cyclic Redundancy Check (during data transfer)1) If one of these error messages comes up repeatedly, please contact HEIDENHAIN.




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*** POWER FAIL *** Error cause:The NC supply voltage for the dc-link power supply has fallenbelow the minimum threshold and the monitoring hasresponded. If the machine tool builder has wired bothconnection paths (Uz and L1/L2 ), the monitoring is alreadyinitiated if the voltage in one path falls below the minimumvoltage.The monitoring becomes only active after the conversion ofthe PLC program.The error message is not displayed in a red window, but inwhite characters on black background.Error elimination: see also section "Power Supply Check connectors X31 of the dc-link power supply. Check feed lines Uz+/Uz- and L1/L2 if they are broken.

Customized error messages by the machine tool manufacturerIf the machine parameter MP 4020 bit 3 = 1, a PLC error message is displayed by the error markers M2924 toM3023 and M2815 in the PLC program.The customized text is stored in the text file (ASCII) specified in OEM.SYS in the line PLCERROR =.If the machine parameter MP 4020 bit 3 = 0, PLC error messages are displayed via the PLC error table (PET);see section 17.5.

marker 2924to to and marker 2815 set

marker 3023




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File system error X

[1155 ff]

X = 1 Incorrect cluster number in routine "get_cluster.2 Incorrect cluster number in routine "put_cluster".3 Incorrect cluster number in routine "next_cluster"4 Incorrect cluster number in routine "update_cluster".5 Incorrect cluster number in routine "get_free_cluster".6 Incorrect cluster number in routine "get__last_cluster".7 Incorrect cluster number in routine "get_cluster_befor".8 Incorrect cluster number in routine "read_dos_data".9 Incorrect cluster number in routine "write_dos_data".10 Undefined software error in routine "test_file.

A Semaphore or queue could not be created.B Partition faulty or cannot be read.

Hard disk or RAM cannot be mounted.C Disk incorrectly partitioned.D Sector number is incorrect in the hard disk server task.

Wrong sector number or write-protected sector.E Time-out while waiting of the interrupt from the hard disk.F Hard disk write or read error.

The TNC has detected a defective cluster on the hard disk.The area is marked as defective in the FAT and the data aredeleted. When the TNC is started again the deleted files are listed.

G Time-out: interrupt lineDue to bad shielding electrical disturbances are possible.

H Time-out: disk not readyDue to bad shielding electrical disturbances are possible.

I Disk always busyDue to bad shielding electrical disturbances are possible.

J Defective sector in FAT or root directory, hard disk cannot be usedK Recalibrate error (search)L No data request from hard disk although expected

If the error message "FILE SYSTEM ERROR X" (X = identification letter, see above) comes up repeatedly,please note down the error message and the register contents and contact HEIDENHAIN.

Note: After each control reset it is checked if there are defective clusters on the hard disk.In this case the partition (TNC, PLC or SYS) and the number are entered in the log of the TNC.

Example (extract from log):ERR: 1 DEFECT CLUSTERS IN TNC 13.09.1999 12:35:59ERR: 2 DEFECT CLUSTERS IN SYS 13.09.1999 12:35:59




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Processor check error YX

[1 ff]

X = 38ABM

OR

Y =

Test plane incomplete / will not runCRC sum of PLC program OP codeSoftware errorSoftware errorErroneous operating voltageThe 5V supply voltage (Uvcc) of the LEis not within the tolerance.Export version: axis 4 or 5 paraxialAttempt to start a PLC positioning (M4120to M4124), a datum shift (M4132) orto switch the range (M4574 and M4575)simultaneously, although MP7440/bit 2was set or MP3030 = 1.ORPLC strobe (PLC positioning, datum shift,switchover of the range) set during activeTOOL DEF (M4074)CPU number 1 = host computer

2 = DSP

If the error message "Processor check error XY" (XY = identification letters, see above) comes up repeatedly,please send the complete logic unit to HEIDENHAIN for repair. Please indicate the error message, the codeletters and the register contents.




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4.2 PLC editor

Blinking display Error cause Y

PLC: invalid command

[64]

PLC: invalid operand type

[65]

PLC: operand not found

[66]

PLC: operand incorrect

[67]

PLC: error in text after command

[68]

PLC: line too long

[69]

PLC: label not defined

[70]

PLC: end of block not found

[71]

PLC: program too long

[72]

The TNC cannot interpret the line as aPLC command(earlier versions: operand for jump is notlabel)

An unknown operand type was given.The command cannot be used for the givenoperand type.

A type was given for the operand, but no value.

Operand out of permissible rangeAn operand number was given that lies outsidethe range available for this operand

No limiter behind commandBehind the PLC command additional characterswere found that could not be interpreted

End of line not foundThe line is longer than 128 characters

A reference was made to a label that hasnowhere been defined with LBL, KFIELD orEXTERN.

At the end of the program file there are PLCcommands that are not concluded with an EMor JP command. The danger therefore existsthat at runtime an undefined program range isrun through.

The total length of the program code to begenerated exceeds the memory availablein the control.

ESC

ESC

ESC

ESC

ESC

ESC

SC

SC

SC

Error classification (not displayed on the screen) !Y = E: Error recognized during editing; line is not formatted.

S: Error recognized during syntax check in the PLC editor (COMPILE soft key).Under certain circumstances this error is already recognized during the syntax check,otherwise when the compiler is run.

C: Error recognized during compiler run, either when the control is switched on or in thePLC programming mode.




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PLC: assignment in parentheses[73]

PLC: too many parentheses[74]

PLC: jump incorrectly programmed[75]

PLC: closing parenth. w/o opening[76]

PLC: label incorrectly programmed[77]

PLC: label incorrectly programmed[78]


PLC: parenthesis not closed[80]

PLC: label defined twice[81]

PLC: word assignment missing[82]

An attempt was made to assign the result of a gatedoperand, although not all open parentheses had beenclosed.

Excessive nesting of parenthesesAn attempt was made to nest more than16 parenthetical expressions in each other.

Jump in gating chainAn unconditional jump was programmed, althoughthe assignment chain begun beforehand had not yetbeen assigned.

Closing parenthesis without opening parenthesisThere are more closing than opening parentheses.

Label within parenthesesA label was set within a parenthetical calculation. Thisis illegal because close-parenthesis commands cannotbe executed without the associated open-parenthesiscommands.

Label within a gating chainA label was programmed in a gate that has alreadybeen started. This is illegal because the first commandbehind the label would then have to be interpreted,depending on the course of the program, once aslogical connection and once as a load command.

Jump within parenthesesA jump command was programmed within paren-theses. This is illegal because due to the internal im-plementation all opening parentheses must be followedby closing parentheses, which would not happen in ajump.

Parenthesis open at end of blockAn EM instruction has been programmed in aparenthetical instruction. This is illegal sinceparentheses must be closed in any case.

Label defined twiceThe same label name was used twice for a LBL or aKFIELD instruction.A label name that was imported with EXTERN fromanother module was used again with a LBL or KFIELDinstruction.A name reserved for internal modules (9000 ... 9255)was used with a LBL, KFIELD or EXTERN instruction.

Word assignment missingA word assignment conducted. However, the resultwas not assigned to an operand, but a new logicoperation started.

SC

SC

SC

SC

SC

SC

SC

SC

SC

SC

Error classification (not displayed on the screen) !Y = S: Error recognized during syntax check in the PLC editor (COMPILE soft key). Under certain

circumstances this error is already recognized during the syntax check, otherwise when thecompiler is run.





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PLC: logic assignment missing[83]

PLC: word accumulator not loaded[84]

PLC: logic accumulator not loaded[85]

PLC: opening parenth. incorrect[86]

PLC: incorrect type in parenth.[87]


PLC: ENDC/ENDK without beginning[89]

PLC: error in CASE/KFIELD[90]

PLC: too many entries in CASE[91]

A logic operation was performed, but the result wasassigned to a new logic operation instead of to anoperand.

A command was programmed that logically connects,assigns or manipulates the loaded word accumulator,although the word accumulator was not previouslyloaded.

A command was programmed that logically connects,assigns or manipulates the loaded logic accumulator,although the logic accumulator was not previouslyloaded.

Accumulators not loaded on "open parenthesis"You programmed an open-parenthesis commandwithout first starting a logic or a word sequence.

Incorrect type of result in parenthesesDepending on the logic operation formed before aparenthesis and the parenthesis command used, it isexpected that a sequence in parentheses supplies aresult of the same type (word / logic). If the types differ,the logic operation requested in the open-parenthesiscommand cannot be formed.

Conditional jump with invalid logic accumulatorYou programmed a conditional jump(CMT/CMF/JPT/JPF/EMT/EMF) without first starting alogic operations sequence in the logic accumulator.

ENDC/ENDK without CASE/KFIELD instructionYou programmed an ENDC command without apreceding CASE statement, or an ENDK commandwithout a preceding KFIELD label.

Incorrect command within a CASE table / KFIELDYou programmed a command other than CM behinda CASE instruction and before the associated ENDCinstruction, or you programmed a command otherthan K behind a KFIELD and before the associatedENDK label.

Too many entries in CASE tableYou programmed a CASE branch with more than128 entries

SC

SC

SC

SC

SC

SC

SC

SC

SC

Error classification (not displayed on the screen) !Y = S: Error recognized during syntax check in the PLC editor (COMPILE soft key).

Under certain circumstances this error is already recognized during the syntax check,otherwise when the compiler is run.



Service ManualTNC 426.B/430.ABlinking error messages and their causes


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PLC: CASE/KFIELD is empty[92]

PLC: string accum. not loaded[93]

PLC: string within parentheses[94]

PLC: string assignment missing[95]

PLC: global/external incorrect[96]

PLC: too many modules[97]

PLC: file not found[98]

PLC: file too long[99]

PLC: too many local labels[100]

PLC: too many global labels[101]

Empty CASE instruction/KFIELDYou programmed a CASE instruction followed immediatelyby an ENDC instruction, or you programmed a KFIELDlabel immediately followed by an ENDK label.

You programmed a command to logically connect, assignor manipulate and already loaded string accumulatorwithout first loading the string accumulator.

String instruction within parenthesesYou programmed a string instruction within parentheses.String operations cannot be nested with parentheses.

You started a new logic operations sequence withoutfirst assigning the logic operation formed in the stringaccumulator.

GLOBAL/EXTERNAL not at beginning of fileYou wrote the GLOBAL or EXTERNAL commands behindother program code in the file. These commands mustalways appear before the program code.

You attempted to link more than 64 files into one programusing the USES instruction.

A file linked with the USES instruction cannot be found.

The compiled program code of a single file would be largerthan 64 kB and therefore cannot be compiled. Split thefile into several smaller files and link them with theUSES command.

More than 1000 label assigned in one file.All LBL, KFIELD and EXTERN command are addedtogether with those (hidden) labels created throughstructured commands. Split the file into several smaller filesand link them with the USES command.

A total of more than 1000 global labels have been definedwithin the associated files.

SC

SC

SC

SC

SC

(S)C

(S)C

SC

SC

C







BlattPage17


PLC: external label not defined[102]

PLC: external label in case[103]

PLC: external label in JP[104]

PLC: global label defined twice[105]

PLC: incorrect program structure[106]

PLC: structure open at file end[107]

PLC: global in the main file[108]

PLC: excessive nesting[109]

PLC: stack underflow[110]

PLC: stack overflow[111]

46...49

A label declared with EXTERN has not beendefined with GLOBAL in any of the associatedmodules.

A label declared with EXTERN has been inserted inthe CM list of a CASE command. Define a localmodule, which in the simplest case only calls theglobal module via CM.

You attempted to jump to a label defined withEXTERN using a JP/JPF/JPT command.

You defined the same label more than once withGLOBAL in the same or in several files.

You programmed an ELSE/ENDI/ENDW/UNTILcommand without prior required IF/ELSE/WHELP/REPEAT command.Several structured commands have not beennested within each other, but have been interlinked.The structures must always be closed in the orderopposite to that in which they are opened!

Structure open at file endA structured command has been opened and notclosed again prior to the end of file.

You defined a module from the main file asGLOBAL. Only modules from files which are linkedwith the USES command can be made accessiblefor other files through the GLOBAL command.

free

You attempted to nest more than 32 module callswithin each other.You programmed a recursive module call thatexceeds the limit of 32 levels.

You attempted to retrieve data from the stack whichwere not stored there.

You attempted to write more than 128 bytes of datato the stack. Word operands (B/W/D/K) eachoccupy 4 bytes, logic operands (M/I/O/T/C) 2 byteseach.

C

SC

SC

(S)C

SC

SC

SC

R

R

R




R: Error recognized during run time of the PLC program.




BlattPage18


PLC: time out[112]

PLC: CASE out of range[113]

PLC: subprogram not defined[114]

PLC: index range incorrect[115]

PLC: error table missing[1524]

PLC: error in module call[1750]

The processing of the program section to be executedcyclically took longer than 10 ms. Check the structure ofthe subprogram for very calculation-intensive sectionsthat you can start as SUBMIT jobs.The displayed processing time will be increased duringRS232 data transfer and in handwheel mode. If you arein doubt, select handwheel mode and simultaneouslystart data transfer via RS232 (if possible at 38 400baud); subsequently check "MAXIMUM PROCESSINGTIME" in the PLC programming environment. 100%corresponds to 5 ms; with this utilization the blockprocessing rate is still observed. Value should notexceed 150% (safety reserve in the event ofunfavourable operating conditions).

CASE out of rangeThe operand for the CASE instruction contains a valuethat cannot be interpreted as offset in the CM table(smaller than 0 or greater than table length minus 1).

This error currently cannot be displayed.

Indexed access out of permissible rangeThe address for a write access to the file typesB/W/D/M/I/O/T/C is, through the inclusion of the indexregister, in a region invalid for these operand types.Due to accessing a constant field the index registercontains a value which is not permitted for this field ( field length 1).Through the inclusion of the index register the addressof a string leads to an invalid value.The number of a dialogue (S#Dn[X]) or an errormessage (S#En[X]) leads to an invalid value (999) through the inclusion of the index register.During the addressing of a component string (Sn^X)the value range for the index register (0...127) wasexceeded.

A PLC error module 9085/9086 was called although noerror table was compiled, or there were no entries in thetable.

58

59...89 free

R

R

R

R

R

Error classification (not displayed on the screen) !Y = Error recognized during run time of the PLC program.




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PLC: error table not .PET[1525]

PLC: error table not found[1527]

PLC: err. table format incorrect[1528]

PLC error tableThe error table selected in OEM.SYS is not a .PET file.

PLC error tableThe error table selected in OEM.SYS could not be found(file name or path name incorrect).

PLC error tableThe error table selected in OEM.SYS does not have anup-to-date binary format (e.g. after a softwareexchange).

C

C

C

Error classification (not displayed on the screen) !Y = : Error recognized during compiler run, either when the control is switched on or in the

PLC programming mode.




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4.3 Position encoder interface


encoder: amplitude too small[44]

encoder: frequency too high[45]

measuring system defective[46]

Ref mark : incorrect spacing[62]

Signal amplitude error; position encoder

Signal frequency error; position encoder

Error with distance-coded scale; position encoder

During a reference-mark run on an encoder with distance-coded reference marks a distance of more than 1000 signalperiods was covered without passing over a reference mark.

Possible error cause: Encoder not connected Cable damaged Glass scale contaminated or defective Scanning head defective Position encoder input of the logic unit defective

4.4 Speed encoder interface


motor encoder: amplitude too small

encoder: amplitude too small

[47]

motor encoder: frequency too high

encoder: frequency too high

[48]

motor encoder defective

[2206]

motor encoder n: frequency too high

Signal amplitude error; speed encoder (Zn or Z1 track)

Signal frequency error; speed encoder

The motor encoder of the displayed axis is defectibe.

Possible error cause: Cable of motor encoder damaged Graduated disk of motor encoder contaminated or damaged Speed encoder input of logic unit defective

This error can only occur with a digital spindle:Possible error cause:- Wrong entry of the encoder line count in the motor table- Disturbance on the reference pulse signal

DR. JOHANNES HEIDENHAIN For checking the position encoder circuit click into the red bounded area.

DR. JOHANNES HEIDENHAIN For checking the speed encoder circuit click into the blue bounded area.




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4.5 Analogue axes


Excessive servo lag in [38]

Nominal speed valuetoo high

[39]

Movement monitoring errorin a

[40]

Standstill monitoringerror in

[41]

Excessive offset in [42]

Position monitoring (servo lag)Operation with velocity feedforward control:

Position monitoring exceeded;defined in machine parameter 1420.X.

Operation with servo lag:Servo lag monitoring exceeded;defined in machine parameter 1720.X.

Synchronized axes (gantry):The positions of master and slave axes differ by more than the valueentered in machine parameter 855.X (slave axis is displayed).

Monitoring of the analogue voltage limit The nominal value voltage has reached the limit of 10V ( 20V

for the spindle); for operation with velocity feedforward control only.

Movement monitoring The distance actually covered in a certain time is less than 1/4th

or more than 4x the nominal distance calculated by the control.Can be influenced via MP 1140.X.

Standstill monitoring At standstill the position deviation of an axis is greater than the

value entered in machine parameter 1110.X.

Monitoring of the offset voltage During an automatic offset adjustment by machine parameter

MP1220 the offset voltage has exceeded its limit of 100mV.

Error locationIf one of the above-listed error messages is displayed, the error may be located in any element of the closed loop.

e.g.: Error in control Excessive offset voltage at the servo amplifier Incorrect speed adjustment at the servo amplifier Monitoring function of the servo amplifier has responded

(e.g. monitoring of current intensity) Electrical defect at the servo amplifier Defective motor, encoder or cables Mechanical defect (bearing, spindle or guides) Excessive mechanical forces on a drive

DR. JOHANNES HEIDENHAIN For checking the analogue nominal speed interface to the servo amplifier click into the red bounded area.




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4.6 Digital axes


Excessive servo lag in [38]

Nominal speed valuetoo high

[39]

Movement monitoring errorin a

[40]

Standstill monitoringerror in

[41]

Movement monitoring errorin b

[43]

Position monitoring (servo lag)Operation with velocity feedforward control:

Position monitoring exceeded;defined in machine parameter 1420.X.

Operation with servo lag:Servo lag monitoring exceeded;defined in machine parameter 1720.X.

Synchronized axes (gantry):The positions of master and slave axes differ by more than the valueentered in machine parameter 855.X (slave axis is displayed).

Monitoring of the maximum shaft speed During operation with servo lag the speed is limited to the maximum

shaft speed. When operating with velocity feed forward control thiserror message is displayed as soon as the maximum shaft speed isreached. The maximum shaft speed is stored in the motor tables.

Movement monitoring The distance actually covered in a certain time is less than 1/4th

or more than 4x the nominal distance calculated by the control.Can be influenced via MP 1140.X.

Standstill monitoring At standstill the position deviation of an axis is greater than the

value entered in machine parameter 1110.X.

Movement monitoring The difference between the counts of the position encoder and of

the speed encoder has reached the tolerance programmed inMP2800.X (only effective, if two separate encoders are used foracquisition of nominal position and speed).

Error locationIf one of the above-listed error messages is displayed, the error may be located in any element of the closed loop.

e.g.: Logic unit defective The ready signal of the servo amplifier is missing (see basic circuit diagram) The I2t limiting has taken effect. Defective motor, position or speed encoder or cables Mechanical defect (bearing, spindle or guides) Excessive mechanical forces on a drive

DR. JOHANNES HEIDENHAINFor checking the digital nominal speed interface to the servo amplifier click into the blue bounded area




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Power stage in axis too weak[2188]

Power stage : U-IMAX incorrect[2192]

Power stage : I-MAX incorrect[2118]

Power stage S not ready[2193]

motor enc. line count too high[2189]

Motor : XH; X2; F-N; R2 incorrect[2190]

Motor : n-n; f-n incorrect[2191]

Motor : t-max incorrect[2194]

Motor : I-n incorrect[2195]

Motor : I-max incorrect[2196]

Power stage for displayed axis too weak.

U-Imax of the power stage for the displayed axis isincorrect.U-IMAX = voltage of current sensor

Imax of the power stage for the displayed axis is incorrect.IMAX = peak current

The ready signal from the power stage of the spindlewas switched off during operation or was interruptedby at least 1 ms.Check the pulse enable K663 at the interface board.(see also basic circuit diagram for motor control)

Motor encoder line count too large for the displayed axis.

One of the following data for the displayed axis is incorrect:XH = magnetising reactanceX2 = rotor leakage reactanceF-N = rated frequencyR2 = rotor resistance, cold

One of the following motor data for the displayed axis isincorrect:N-N = rated rotational speedF-N = rated frequency

t-max of the motor for the displayed axis is incorrectT-MAX = maximum temperature

I-n of the motor for the displayed axis is incorrectI-N = rated current

I-max of the motor for the displayed axis is incorrectI-MAX = maximum current

If one of the above-mentioned errors messages is generated, please check the data in the motor tables and contactHEIDENHAIN. Please indicate the error message, the code letter and the register contents.




BlattPage24


Motor : n-max incorrect[2197]

Motor temperature too high [1217]

Motor : Speed Not Equal To Imax [2207]

Motor : is not turning [2209]

Motor : MP 2340 / MP 2350 incorrect[2198]

N-max of the motor for the displayed axis is incorrectN-MAX = maximum rotational speed

The motor temperature has reached the maximum value.Information on the current motor temperature is fed to the TCNvia the connector for the speed encoder system as an analoguevoltage at the pins Temperature +/-.The threshold is stored in the motor tables.

The current motor speed does not equal the expected atImax.Perhaps the direction of rotation is wrong.

The motor of the displayed axis is not turning.Error elimination / diagnosis Check if there is a break of the motor feed lines! Trace the torque current (I noml) using the integral

oscilloscope and observe whether the current is delimited(characteristic curve is cut horizontally). Normally thecurrent must not be delimited.

If the motor current increases exponentially up to themax. current, probably the data in the motor table areincorrect. Check motor table!

MP 2340 /MP 2350 for the displayed axis is incorrect




BlattPage25


DSP error XXXX [1122]

(not axis-specific)

XXXX =FF01 Undefined errorFF02 Host command not recognized / invalidFF03 Host / DSP watchdog do not matchFF04 Undefined interruptFF05 Unknown hardware IDFF06 No V-NOML value received from hostFF07 AC failFF08 EMERGENCY STOP failFF09 Stack overflowFF0A Delta signal pulse width modulation

Check entry value of MP 2180 during commissioning(PWM clock frequency)!

FF0B Error on memory requestFF0C No speed control interruptFF0D Error during sum check (code)FF0E Time limit of speed interrupt exceededFF0F Initializing error of a software timerFF10 Error during LSV2 transferEF01 Unknown oscilloscope parameter requestedEF02 Host command not recognizedEF03 EMERGENCY STOP active (Emerg. stop test)EF04 EMERGENCY STOP inactive (Emerg. stop test)EF05 Stack overflow warningEF07 GA does not provide interruptEF08 Response to a host command too late

(communication monitoring)EF09 Spurious interrupt (AC fail, EMERGENCY STOP)EF0A EMERGENCY STOP failEF0B Host requested for synchronizationEFF0 Error during sum check (code)E800 Idle loop of time monitor, the last two places

contain the time x 3msE900 Corrected angle deviation when aligningEA00 Time limit of rot. speed interrupt exceeded ; the last

two places contain the time in [ms] (hex!)

If the error message "DSP ERROR XXXX " is generate repeatedly, please contact HEIDENHAIN.Please indicate the error message, the code letter and the register contents.




BlattPage26


DSP error XXXX Y XXXX =Run time error messages

1000 Y Command time-out1001 Y Command acknowledgement incorrect1002 Y Error at beginning of command execution1003 Y Error at end of command execution1004 Y Incorrect status from DSP

Error messages when booting the DSP system1100 Y Error on calculation of check sum1101 Y Time-out during word transfer command1102 Y Time-out during calculation of check sum1103 Y Time-out during GO command1104 Y File SYS:\DSP\... not found

Y = 0 = axes DSP1 = spindle DSP (TNC 430 only)Error messages of spindle DSP (code 9)

258 9 No standby signal received from power stagewithin 4 secs. after power on.

F2C8 9 Incorrect acknowledgement of command





BlattPage27


DSP error XXXX Y

(axis-specific)

Y = axis

XXXX = E010 Encoder contaminatedE020 Encoder frequency exceededE030 Z1 track of encoder contaminatedE040 Warning from power stage (temperature of dissipator)E050 Warning from power stage offE060 GA status register: data not latchedE070 Error on temperature measurementE100 PLC: drive not readyE110 PLC: drive not readyE120 Standstill recognition (V=0 with IQ_max)E130 End of standstill recognitionE140 Warning I2t monitoringE150 End of warning I2t monitoringE160 Limited by I2t monitoringE170 End of limit by I2t monitoringE180 Error on REF requestE200 Drive enabledE210 Drive disabled e.g. by EMERGENCY STOP





BlattPage28


DSP error XXXX Y

(axis-specific)

Y = axis

F010 Unknown motor type (MP2200)F020 reservedF030 reservedF040 Number of pairs of poles too large (MP2230)F050 ASM: field-defining current

(MP 2280> MP 2110/2310)F060 Grating period of speed encoderF070 ASM: time constant of rotor (MP2290 =0 or too large)F080 Kink point rpm / noml. rpm (MP2210 = 0 or too large)F090 Unknown driving mode (MP2000)F0A0 reservedF0B0 reservedF0C0 reservedF0D0 Voltage at current sensor (MP2130 too large)F0E0 Peak voltage of power stage (MP2110 too large)F0F0 Proportional factor of current controller

(MP2400 too large)F100 Integral factor of current controller (MP2410 too large)F110 Motor temperature (MP2270 > 255)F120 reservedF130 Oscilloscope parameter incorrect (for test)F140 Rated current of power stage

(MP 2110 > MP2110/MP2310)F150 Rated current of motor

(MP2300 too large or < MP2280)F160 Peak current of motor (MP2310 too large)F170 Max. motor rpm (MP2220 too large)F180 Wrong angle compensation values with synchronous

motors (MP2340/MP2350)F190 DC-link voltage of power stage incorrectF1A0 Invalid speed input selected (MP 2700)F1B0 Invalid PWM output selected (MP 2702)F1C0 Band filter parameter incorrect (MP 2540/2550)





BlattPage28.1


DSP error XXXX Y

(axis-specific)

Y = axis

F200 Speed encoder (Zn track): amplitude too smallF210 Speed encoder (Z1 track): amplitude too smallF220 reservedF230 Motor temperature too highF240 Unknown counter IC at speed inputF250 Power stage switches off during operation

Check the pulse enable K663 at the interface board(short-time signal drop etc.)A bridge can be inserted between K663 and K9 fortesting (see basic circuit diagram)This error code is only active for spindle

F260 reservedF270 Excessive angle deviation during alignment

Zn / Z1 tracks do not match;this message can also occur if MP2250.X is incorrect.

F280 Motor cannot be controlled (if controller outputs themax. current, an incorrect movement of the motoris recognized)

F290 Error with 3-D touch probe/evaluation; latch not withL1 input (G19/G26)

F2A0 Incorrect Ref position detectedCheck the shielding of the speed encoder.

F2B0 Standstill recognition (V=0 with IQ_max)F2C0 Actual motor current above limit value

F2D0 Status error PWM component

If the error message "DSP ERROR XXXX " is generated repeatedly, please contact HEIDENHAIN.Please indicate the error message, the code letter and the register contents.


Service Manual TNC 426.B/430.AHardware components of TNC 426.B/430.A


BlattPage29

5. Hardware Components of TNC 426.B/430.A

TNC component TNC 426 .B TNC 430.A

LOGIC UNIT LE 426CB/PB 1) 2)Id.No. XXX XXX -- 3) x

LOGIC UNIT LE 430CA/PA 1) 2)Id.No. XXX XXX -- 3) x

VISUAL DISPLAY UNIT BC 110B (CRT interface) 4)Id.No. 260 520 -- x x

VISUAL DISPLAY UNIT BC 120 (CRT interface) 5)Id.No. 313 037 -- x x

VISUAL DISPLAY UNIT BF 120 6)Id.No. 313 506 -- x x

KEYBOARD UNIT TE 401B 7)Id.No. 250 517 05 x x

KEYBOARD UNIT TE 420 8)Id.No. 313 038 01 x x

PLC I/O BOARD PL 405B (option) 9)Id.No. 263 371 22 x x

PLC I/O BOARD PL 410B (option) 10)Id.No. 263 371 -- x x

1) C versions: with analogue nominal speed command interface1) P versions: with digital interface to servo amplifier2) CF/PF: export versions of TNC 426 CB/PB (different NC software, same hardware)2) CA/PA: export versions of TNC 430 CA/PA (different NC software, same hardware)3) The different versions of the logic units are distinguished by the following differences:

- Type of position encoder inputs (11A, 1Vpp or TTL)- CRT interface for BC110B/120 or flat-panel display BF120- Digital spindle for 9000 or 15000 rpm (for P versions only)

4) Old design (black); 14"; connecting cable to logic unit (X43) 15-pin, 2-row5) New design (grey); 15"; connecting cable to logic unit (X43) 15-pin, 3-row (VGA standard)6) Flat-panel display (grey)7) Old design (black), matching BC110B8) New design (grey), matching BC120 and BF1209) Digital part only (32 PLC inputs / 16 PLC outputs)10) Version 02: 64 PLC inputs / 32 PLC outputs with analogue part

Version 12: 64 PLC inputs / 32 PLC outputs without analogue part


Service Manual TNC 426.B/430.ALogic unit LE 426.B/430.A


BlattPage30

6. LOGIC UNIT LE 426 CB/430 CA6.1 Designation of the logic unit LE 426 CB/430 CA

ID plate and program labelof the logic unit ID plate of the

processor board

ID plate of the PLC graphics boardis located on the board




BlattPage31

6.2 Designation of the logic unit LE 426 PB/430 PA

ID plate and program labelof the logic unit

ID plate of the ID plate of theprocessor board drive-control board

ID plate of PLC graphics boardis located on the board




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6.3 Hardware components of the logic unit LE 426.B/430.AComponents overview LE 426 CB/430 CA

Component

LE426 CB/CF

LE430 CA/CE

PROCESSOR board x x

PLC GRAPHICS board x x

DRIVE (complete) x x

Components overview LE 426 PB/430 PA

Component

LE426 PB/PF

LE430 PA/PE

PROCESSOR board x x

PLC GRAPHICS board x x

DRIVE (complete) x x

DRIVE-CONTROL board x x


Service Manual TNC 426.B/430.AConnector designations and pin layouts


BlattPage33

7. Connector Designations and Pin Layouts7.1 Connectors on the logic unit LE 426.B/430.A7.1.1 Connector designation, logic unit LE 426 CB/PB

LE 426 CB/CF

NC power- Processor PLCsupply board graphics

board

Processor boardX1 = position encoder axis 1X2 = position encoder axis 2X3 = position encoder axis 3X4 = position encoder axis 4X5 = position encoder axis 5X6 = position encoder axis 6X8 = analogue outputs 1 - 6X9 = analogue outputs 7 - 13X12 = touch probe (triggering) for

workpiece calibrationX13 = touch probe (triggering) for

tool calibrationX14 = measuring touch probe (option)X21 = data interface V.24/RS-232-CX22 = data interface V.11/RS-422X23 = serial handwheelX25 = Ethernet interface (option)X26 = Ethernet interface (option)X30 = ref. signal spindleX35 to X37 not availableB = signal ground

PLC graphics boardX41 = PLC outputX42 = PLC inputX43 = CRT (BC) connector orX49 = connector for flat-panel displayX44 = 24 V power supply for PLCX45 = TNC operating panelX46 = machine operating panelX47 = PLC expansion interfaceX48 = PLC analogue input

X31 = NC power supply (dc-link power supply)




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LE 426 PB/PF

NC power Processor PLC Drive-supply board graphics control

board board

Processor boardX1 = position encoder axis 1X2 = position encoder axis 2X3 = position encoder axis 3X4 = position encoder axis 4X5 = position encoder axis 5X6 = position encoder axis 6X8 = nominal value outputs 1 - 6X9 = nominal value outputs 7 - 13X12 = touch probe (triggering) for


tool calibrationX14 = measuring touch probe (option)X21 = data interface V.24/RS-232-CX22 = data interface V.11/RS-422X23 = serial handwheelX25 = Ethernet interface (option)X26 = Ethernet interface (option)X30 = ref. signal spindleX35 to X37 not availableB = signal ground

PLC graphics boardX41 = PLC outputX42 = PLC inputX43 = visual display unitX44 = 24 V power supply for PLCX45 = TNC operating panelX46 = machine operating panelX47 = PLC expansion interfaceX48 = PLC analogue input

Drive-control boardX15 = speed encoder axis 1X16 = speed encoder axis 2X17 = speed encoder axis 3X18 = speed encoder axis 4X19 = speed encoder axis 5X20 = speed encoder axis 6X50 = feed-rate enableX51 = connector of motor power stage, axis 1X52 = connector of motor power stage, axis 2X53 = connector of motor power stage, axis 3X54 = connector of motor power stage, axis 4X55 = connector of motor power stage, axis 5X56 = connector of motor power stage, axis 6X57 = reservedX60 = speed encoder spindle 1)X61 = connector of motor power stage, spindle 1)1)

option for higher spindle speeds





BlattPage35

LE 430 CA/CE

NC power- Processor PLCsupply board graphics

board

Processor boardX1 = position encoder axis 1X2 = position encoder axis 2X3 = position encoder axis 3X4 = position encoder axis 4X5 = position encoder axis 5X6 = position encoder axis 6X8 = analogue outputs 1 - 6X9 = analogue outputs 7 - 13X12 = touch probe (triggering) for


tool calibrationX14 = measuring touch probe (option)X21 = data interface V.24/RS-232-CX22 = data interface V.11/RS-422X23 = serial handwheelX25 = Ethernet interface (option)X26 = Ethernet interface (option)X30 = ref. signal spindleX35 = position encoder axis 7X36 = position encoder axis 8X37 = position encoder axis 9X38 = position encoder axis 10

(option, instead of X14)B = signal ground

PLC graphics boardX41 = PLC outputX42 = PLC inputX43 = CRT (BC) connector orX49 = connector for flat-panel displayX44 = 24 V power supply for PLCX45 = TNC operating panelX46 = machine operating panelX47 = PLC expansion interfaceX48 = PLC analogue input





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LE 430 PA/PE

NC power Processor PLC Drive-supply board graphics control

board board

Processor boardX1 = position encoder axis 1X2 = position encoder axis 2X3 = position encoder axis 3X4 = position encoder axis 4X5 = position encoder axis 5X6 = position encoder axis 6X8 = nominal value outputs 1 - 6X9 = nominal value outputs 7 - 13X12 = touch probe (triggering) for


tool calibrationX14 = measuring touch probe (option)X21 = data interface V.24/RS-232-CX22 = data interface V.11/RS-422X23 = serial handwheelX25 = Ethernet interface (option)X26 = Ethernet interface (option)X30 = ref. signal spindleX35 = position encoder axis 7 (option)X36 = position encoder axis 8 (option)X37 = position encoder axis 9 (option)X38 = position encoder axis 10

(option, instead of X14)B = signal ground

PLC graphics boardX41 = PLC outputX42 = PLC inputX43 = Connection of visual display unit CRT (BC) orX49 = Connection of visual display unit for flat-panel displayX44 = 24 V power supply for PLCX45 = TNC operating panelX46 = machine operating panelX47 = PLC expansion interfaceX48 = PLC analogue input

Drive-control boardX15 = speed encoder axis 1X16 = speed encoder axis 2X17 = speed encoder axis 3X18 = speed encoder axis 4X19 = speed encoder axis 5X20 = speed encoder axis 6X50 = feed-rate enableX51 = connector of motor power stage, axis 1X52 = connector of motor power stage, axis 2X53 = connector of motor power stage, axis 3X54 = connector of motor power stage, axis 4X55 = connector of motor power stage, axis 5X56 = connector of motor power stage, axis 6X57 = reservedX60 = speed encoder spindleX61 = connector of motor power stage, spindle





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7.1.3 Pin layout of the NC POWER SUPPLY of LE 426 .B/430.AX31 NC power supplyTerminal strip (pluggable) 5-pin

PIN Assignment LE 426PA LE 426CAGrounding conductor (ye/gr)

U1 Phase 1 330 V to 450 V via 140 V to 450 V viaU2 Phase 2 isolating transformer;

50 to 60 Hzisolating transformer;50 to 60 Hz

UZ DC-link voltage 385 V to 660 V +UZ DC-link voltage +

7.1.4 Pin layout of the PROCESSOR board of LE 426 .B/430.AX1,X2,X3,X4,X5 Position encoders 1,2,3,4,5

Logic unit LE 426 PB Id.No. 311 999 .. 313 526 .. 317 349 .. 318 177 ..LE 426 CB Id.No. 312 002 .. 313 525 ..

Maximum input frequency: 50 kHzSinusoidal signal inputCurrent interface 11 AInterpolation in TNC: 1024-foldMaximum current consumption of each input: 200 mAFlange socket with male insert (15-pin, D-Sub)

Logic Unit Encoder cableD-Sub connector(male) 15-pin

Assignment D-Sub connector(female) 15-pin

1 + 5 V 1 brown 2 0 V 2 white 3 I1+ 3 green 4 I1 4 yellow 5 0 V 5 white/brown (internal shield) 6 I2+ 6 blue 7 I2 7 red 8 0 V 8 9 + 5 V 9 10 I0+ 10 grey 11 0 V 11 12 I0 12 pink 13 0 V 13 14 not assigned 14 15 not assigned 15 Chassis external shield Chassis external shield

The interface complies with the recommendations in IEC 742 EN 50 178 for separationfrom line power.

DR. JOHANNES HEIDENHAINFor checking the position encoder circuit click into the red bounded area.




BlattPage38

Encoder (1 Vpp)

Connector Id.No. Max. inputfrequency

LE 426 PBX6 311 999 .., 312 000 .., 313 526 .., 313 527 .., 315 475 ..,

317 349 .., 318 177 .., 318 178 .., 326 414 .., 326 416 ..,326 420 .., 326 421 ..

350 kHz

X1 to X5 312 000 .., 313 527 .., 315 475 .., 318 178 .. 350 kHz326 414 .., 326 416 .., 326 420 .., 326 421 .. 50 kHz

LE 426 CBX6 312 001 .., 312 002 .., 313 524 .., 313 525 .., 326 415 ..,

326 419 ..350 kHz

X1 to X5 312 001 .., 313 524 .. 350 kHz326 415 .., 326 419 .. 50 kHz

LE 430 PAX6 311 049 .., 313 521 .., 326 417 .., 325 716 .. 350 kHzX1 to X5 311 049 .., 313 521 .. 350 kHz

325 716 .., 326 417 .. 50 kHzX35 to X38 311 049 .., 313 521 .., 326 417 .., 325 716 .. 350 kHz

LE 430 CAX6 311 050 .., 313 523 .., 326 418 .., 326 424 .. 350 kHzX1 to X5 311 050 .., 313 523 .. 350 kHz

326 418 .., 326 424 .. 50 kHzX35 to X38 311 050 .., 313 523 .., 326 418 .., 326 424 .. 350 kHz

Maximum input frequency: see table aboveSinusoidal signal inputVoltage interface 1 VppInterpolation in TNC: 1024-foldMaximum current consumption of each input: 200 mAFlange socket with male insert (15-pin, D-Sub)

Logic Unit Encoder CableD-Sub connector(male) 15-pin


1 + 5 V (UP) 1 brown/green 2 0 V (UN) 2 white/green 3 A+ 3 brown 4 A 4 green 5 0 V 5 6 B+ 6 grey 7 B 7 pink 8 0 V 8 9 + 5 V 9 blue 10 R+ 10 red 11 0 V 11 white 12 R 12 black 13 0 V 13 14 not assigned 14 violet 15 not assigned 15 Chassis external shield Chassis external shield

The interface complies with the recommendations in IEC 742 EN 50 178 for separationfrom line power.




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Logic unit LE 426CB Id.No. 312 007 ..Id.No. 313 528 ..

Maximum input frequency: 350 kHzSquare-wave input (TTL)Interpolation in TNC: 4-foldMaximum current consumption: 200 mAFlange socket with male insert (15-pin, D-Sub)

Logic Unit Encoder CableD-Sub connector(male) 15-pin


1 + 5 V (UP) 1 brown/green 2 0 V (UN) 2 white/green 3 Ua1 3 brown 4 Ua1 4 green 5 0 V 5 6 Ua2 6 grey 7 Ua2 7 pink 8 0 V 8 9 + 5 V 9 blue 10 Ua0 10 red 11 0 V 11 white 12 Ua0 12 black 13 0 V 13 14 Uas 14 violet 15 not assigned 15 Chassis external shield Chassis external shield




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X8 Analogue outputs 1 to 6Flange socket with female insert (15-pin)

Logic Unit Connecting CableD-Subconnector(female) 15-pin

Assignment D-Subconnector(male) 15-pin

Color

1 analogue output 1: 10 V 1 brown2 do not assign 2 brown/green3 analogue output 2: 10 V 3 yellow4 analogue output 5: 10 V 4 red/blue5 analogue output 3: 10 V 5 pink6 analogue output 5: 0 V 6 grey/pink7 analogue output 4: 10 V 7 red8 analogue output 6: 10 V 8 violet9 analogue output 1: 0 V 9 white10 do not assign 10 white/grey11 analogue output 2: 0 V 11 green12 do not assign 1213 analogue output 3: 0 V 13 grey14 analogue output 4: 0 V 14 blue15 analogue output 6: 0 V 15 blackChassis external shield Chassis external shield

X9 Analogue outputs 7 to 13Flange socket with female insert (15-pin)

Logic Unit Connecting CableD-Sub connector(female) 15-pin

Assignment D-Subconnector(male) 15-pin

Color

1 analogue output 7: 10 V 1 brown2 analogue output 13: 10 V 2 brown/green3 analogue output 8: 10 V 3 yellow4 analogue output 12: 10 V 4 red/blue5 analogue output 9: 10 V 5 pink6 analogue output 12: 0 V 6 grey/pink7 analogue output 10: 10 V 7 red8 analogue output 11; 10 V 8 violet9 analogue output 7: 0 V 9 white10 analogue output 13: 0 V 10 white/grey11 analogue output 8: 0 V 11 green12 do not assign 1213 analogue output 9: 0 V 13 grey14 analogue output 10: 0 V 14 blue15 analogue output 11: 0 V 15 blackChassis external shield Chassis external shield

DR. JOHANNES HEIDENHAINFor checking the analogue nominal speed interface to the servo amplifier click into the red bounded area..




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X12 Touch trigger probe for workpiece calibrationFlange socket with female insert (15-pin)

Logic UnitD-Sub connector(female) 15-pin

Assignment

1 0 V (internal shield)3 standby4 start5 +15 V 10 % (UP)6 +5 V 5 % (UP)7 battery warning8 0 V (UN)9 trigger signal10 trigger signal 1)2, 11 to 15 do not assignChassis external shield1)

stylus at rest = high level

The interface complies with the recommendations in IEC 742 EN 50 178 forseparation from line power.

AK Id.No. 274 543 TS 120 Id.No. 265 348 ..TS 220 Id.No. 293 488 ..

D-Subconnector(male) 15-pin

Flange socket onmounting base,6-pin

Quick disconnect,6-pin

3 pink 4 4 grey5 grey6 brown/green 2 2 brown7 grey 3 3 grey8 white/green 1 1 white9 green 5 5 green10 yellow 6 6 yellowChassis external shield Chassis Chassis external shield

Connecting cable Id.No. 310 197 .. EA Id.No. 262 904 01 TS 630D-Subconnector(male) 15-pin

Connector(female) 7-pin

Flangesocket onmountingbase, 7-pin

Id.No.293 714 ..

1 white/browninternal shield

7 7 internal shield

3 grey 5 5 grey4 yellow 3 35 brown 2 2 brown7 blue 6 6 blue8 white 1 1 white10 green 4 4 greenChassis external shield Chassis Chassis external shield




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X13 Touch trigger probe for workpiece calibrationFlange socket with female insert (9-pin)

Logic UnitD-Sub connector(female) 9-pin

Assignment

1 standby2 0 V (UN)4 +15 V 5% (UP)7 +5 V 5% (UP)8 trigger signal9 trigger signal1)3, 5, 6 do not assignChassis external shield1)

stylus at rest = high level

The interface complies with the recommendations in IEC 742 EN 50 178 forseparation from line power

AK Id.No. 310 200 .. TT 120 Id.No. 295 743 03D-Subconnector(male) 9-pin

Coupling onmounting base(female) 6-pin

Connector(male) 6-pin

1 pink 6 62 white/green 1 1 white4 grey 5 57 brown/green 2 2 brown8 green 3 3 green9 yellow 4 4 yellowChassis external shield Chassis Chassis external shield

X21 V.24/RS-232-C data interfaceFlange socket with female insert (25-pin)

Logic Unit Connecting cable Id.No. 239 760 .. AB Id.No. 310 085 01 Connecting cable Id.No. 274 545 01

D-Subconnector(female)25-pin

Assignment D-Subconnector(male)25-pin

D-Subconnector(female) 25-pin

D-Subconnector(male)25-pin




1 GND 1 white/brownext. shield

1 1 1 1 white/brownext. shield

1

2 RXD 2 green 3 3 3 3 yellow 2

3 TXD 3 yellow 2 2 2 2 green 3

4 CTS 4 grey 5 5 5 5 pink 4

5 RTS 5 pink 4 4 4 4 grey 5

6 DTR 6 blue 20 20 20 20 brown 6

7 signal GND 7 red 7 7 7 7 red 7

20 DSR 20 brown 6 6 6 6 blue 20

8 to 19,21 to 25

do not assign 8 8 8 8 8

Chassis ext. shield chassis ext. shield chassis chassis chassis chassis ext. shield chassis

The interface complies with the recommendations in IEC 742 EN 50 178 forseparation from line power




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X14 Measuring touch probe (option)Flange socket with female insert (25-pin)

Logic Unit (adapter kitId.No. 311 647 51)

AK Id.No. 296 839 Connecting cable A-1016-6640RENISHAW

RENISHAWSP 2/1



Flangesocket onmountingbase (female)21-pin

Connector(male)21-pin

3 Ua2 3 pink 7

4 Ua1 X axis 4 yellow 5

16 Ua2 16 grey 6

17 Ua1 17 green 4

7 Ua2 7 brown/blue 11

8 Ua1 Y axis 8 red 9

20 Ua2 20 white/blue 10

21 Ua1 21 blue 8

11 Ua2 11 violet 19

12 Ua1 Z axis 12 red/blue 13

24 Ua2 24 black 18

25 Ua1 25 grey/pink 12

1 0V 1 white 1

5 + 12 V 5 brown 3

9 Overtravel 1 9 white/green 15

13 0V 13

14 Overtravel 2 14 brown/green 21

18 ERROR 18 white/grey 14

22 SWITCH 22 grey/brown 20

2, 6, 10,15, 19, 23

do not assign

Chassis external shield chassis external shield chassis chassis externalshield

chassis chassis

The interface complies with the recommendations in IEC 742 EN 50 178 for separationfrom line power




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X22 V.11/RS-422 data interfaceFlange socket with female insert (15-pin)

Logic Unit Connecting cable Id.No. 289 208 .. AB Id.No. 311 086 01






1 Chassis GND 1 blackext. shield

1 1 1

2 RXD 2 blue 2 2 2

3 CTS 3 grey 3 3 3

4 TXD 4 white 4 4 4

5 RTS 5 green 5 5 5

6 DSR 6 white/green

operating manual 280474

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