GSK GSK980TDc User manual

This user manual describes all items concerning the operation of
the system in detail as much as possible. However, it is impractical to give
particular descriptions of all unnecessary and/or unavailable operations of
the system due to the manual content limit, product specific operations and
other causes. Therefore, the operations not specified herein shall be
considered impossible or unallowable.
This user manual is the property of GSK CNC Equipment Co.,
Ltd. All rights are reserved. It is against the law for any organization or
individual to publish or reprint this manual without the express written
permission of GSK and the latter reserves the right to ascertain their legal
liability.

GSK980TDc Turning CNC System User Manual
II
FOREWORD
Dear user,
We are really grateful for your patronage and purchase of this GSK980TDc Turning
CNC system made by GSK CNC Equipment Co., Ltd.
The user manual describes the programming, operation, installation and connection
of this GSK980TDc Turning CNC system. Please read it carefully before operation in
order to get the safe and effective working.
Warning
This system can only be operated by authorized and qualified personnel as
improper operations may cause accidents.
Please carefully read this user manual before use!
Note: The power supply installed on (in) the cabinet is exclusive to GSK’S CNC
systems.
The power supply form is forbidden to be used for other purposes.
Otherwise, there may be extreme danger!
This user manual shall be kept by final user.

Notes
III
Notes
■Delivery and storage
zPacking box over 6 layers in pile is unallowed.
zNever climb the packing box, neither stand on it, nor place heavy objects on it.
zDo not move or drag the product by the cables connected with it.
zForbid collision or scratch to the panel and displayer.
zPacking box should be protected from damping, insolation and raining.
■Open packing box to check
zEnsure things in packing box are the required ones.
zEnsure the product is not damaged in delivery.
zEnsure the parts in packing box are in accordance to the order.
zContact us in time if the product type is inconsistent with the order, there is short of
accessories, or product damage in delivery.
■Connection
zOnly qualified persons can connect the system or check the connection.
zThe system must be earthed, its resistance must be less than 4 Ωand the ground wire
cannot be replaced by zero wire.
zConnection must be correct and firm to avoid the product to be damaged or other
unexpected result.
zConnect with surge diode in the specified direction to avoid the damage to the system.
zSwitch off power supply before pulling out plug or opening electric cabinet.
■Troubleshooting
zSwitch off power supply before troubleshooting or changing components.
zTroubleshoot and then startup the system when there is short circuit or overload.
zDo not switch on or off it frequently and an interval is 1 minute at least after the system is
powered on again.

GSK980TDc Turning CNC System User Manual
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All specification and designs are subject to change without further notice.
Warning！
zPlease read this user manual and a manual from machine builder completely
before installation, programming and operation; do operate the system and
machine according to user manuals, otherwise it may damage the system,
machine, workpiece and even injure the operator.
Cautions！
zFunctions, technical indexes described in this user manual are only for the
system. Actual functions and technical performance of machine tool with this
CNC system are determined by machine builder’s design, so refer to its user
manual.
zThe system is employed with integrated machine control panel and the keys
on machine control panel are defined by PLC program. Functions of keys in
this user manual are for standard PLC program. Please notice it!
zRefer to user manual from machine manufacturer about functions and
meanings of keys on machine control panel.
Announcement！
zThis manual describes various items as much as possible. However,
operations allowable or unallowable can not be explained one by one due to
so many possibilities that may involve with, so the contents that are not
specially stated in this manual shall be considered to be unavailable.

Summary
V
ⅠProgramming
GSK980TDc CNC Technical Specification, Product
Type, Command and Program Format
ⅡOperation
GSK980TDc CNC Operation Use
ⅢInstallation and Connection
GSK980TDc CNC Installation, Connection and Setting
Appendix
CNC Ladder Function Allocation, Alarm Message Table

GSK980TDc Turning CNC System User Manual
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Safety Responsibility
Manufacturer’s safety responsibility
——The manufacturer should be responsible for the cleared or the controlled safety in the design
and the structure of the CNC system and the accessories.
——The manufacturer should be responsible for the CNC system and the accessories.
——The manufacturer should be responsible for the message and the suggestion for the user.
User’s safety responsibility
——The user should study and train the system safety operation, master the safety operation
content.
——The user should be responsible for the danger caused by increasing, changing or modifying
the CNC system, the accessories by itself.
——The user should be responsible for the danger because of the mistaken operation, regulation,
maintenance, installation and storage.

Contents
I
CONTENTS
ⅠProgramming
CHAPTER 1 PROGRAMMING .......................................................................................................... 1
1.1 GSK980TDc Introduction .......................................................................................................1
1.1.1 Product introduction .....................................................................................................1
1.1.2 Technical specification .................................................................................................2
1.1.3 Environment and conditions.........................................................................................4
1.1.4 Power supply................................................................................................................5
1.1.5 Guard ...........................................................................................................................5
1.2 CNC System of Machine Tools and CNC Machine Tools ......................................................5
1.3 Programming Fundamentals ..................................................................................................7
1.3.1 Coordinates definition ..................................................................................................7
1.3.2 Machine coordinate system, Machine Zero and machine reference point..................7
1.3.3 Workpiece coordinate system and Program Zero .......................................................8
1.3.4 Interpolation function....................................................................................................9
1.3.5 Absolute programming and incremental programming .............................................10
1.3.6 Diameter programming and radius programming......................................................10
1.4 Structure of an NC Program .................................................................................................11
1.4.1 General structure of a program.................................................................................. 11
1.4.2 Main program and subprogram .................................................................................15
1.5 Program Run ........................................................................................................................15
1.5.1 Sequence of program run ..........................................................................................15
1.5.2 Execution sequence of word......................................................................................16
1.6 Basic Axis Incremental System ............................................................................................17
1.6.1 Incremental system speed of basic axis ....................................................................17
1.6.2 Incremental system unit of basic axis ........................................................................17
1.6.3 Incremental system data range of basic axis.............................................................18
1.6.4 Incremental system data range and unit of basic axis...............................................18
1.6.5 Program address value unit and range of incremental system of basic axis ............20
1.7 Additional Axis Incremental System .....................................................................................21
1.7.1 Additional axis being the current incremental system ...............................................21
1.7.2 Additional axis being IS-A incremental system..........................................................21
CHAPTER 2 MSTF COMMAND....................................................................................................... 22
2.1 M (Miscellaneous Function) .................................................................................................22
End of program M02 ...........................................................................................................22
End of program run M30 .....................................................................................................22
Subprogram call M98 ..........................................................................................................23
Return from subprogram M99.............................................................................................23
Macro program call M9000～M9999...................................................................................24
M commands defined by standard PLC ladder diagram .......................................................24
Program stop M00...............................................................................................................25
Program optional stop M01....................................................................................................25
Spindle CW, CCW and stop control M03, M04, M05 ............................................................26
Cooling control M08, M09 ...................................................................................................26
Tailstock control M10, M11..................................................................................................26

GSK980TDc Turning CNC System User Manual
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Chuck control M12, M13 .....................................................................................................26
Spindle position/speed control switch M14, M15 ..................................................................26
Spindle clamped/released M20, M21 ....................................................................................27
The 2nd spindle position/speed switch M24, M25 ................................................................27
Lubricating control M32, M33 ................................................................................................27
Spindle automatic gear change M41, M42, M43, M44..........................................................27
Spindle 8-point orientation M50～M58 ..................................................................................27
The 2nd spindle rotation CCW, rotation CW , stop M63, M64, M65 .....................................27
2.2 Spindle Function...................................................................................................................28
2.2.1 Spindle speed switching value control.......................................................................28
2.2.2 Spindle speed analog voltage control........................................................................28
2.2.3 Constant surface speed control G96, constant rotational speed control G97...........29
2.2.4 Spindle override .........................................................................................................31
2.2.5 Multiple spindle control function.................................................................................32
2.2.6 Cs contour control funciton ........................................................................................33
2.3 Tool Function ........................................................................................................................33
2.3.1 Tool control.................................................................................................................33
2.3.2 Tool life management.................................................................................................37
CHAPTER 3 G COMMANDS ........................................................................................................... 46
3.1 Commands ...........................................................................................................................46
3.1.1 Modal, non-modal and initial mode............................................................................47
3.1.2 Omitting words ...........................................................................................................48
3.1.3 Related definitions......................................................................................................49
3.2 Rapid Traverse Movement G00.........................................................................................49
3.3 Linear Interpolation G01 ....................................................................................................50
3.4 Circular Interpolation G02, G03.........................................................................................51
3.5 Three-point Circular Interpolation G05 ..............................................................................54
3.6 Ellipse Interpolation G6.2, G6.3 ...........................................................................................56
3.7 Parabola Interpolation G7.2, G7.3.....................................................................................59
3.8 Plane Selection G17～G19 ..................................................................................................61
3.9 Polar Coordinate Interpolation G12.1, G13.1.......................................................................62
3.10 Cylindrical Interpolation G7.1 .............................................................................................65
3.11 Chamfering Function ..........................................................................................................68
3.11.1 Linear chamfering.....................................................................................................68
3.11.2 Circular chamfering ..................................................................................................70
3.11.3 Special cases ...........................................................................................................72
3.12 Dwell G04 ........................................................................................................................74
3.13 Machine Zero Function.......................................................................................................74
3.13.1 Machine 1st reference point G28 ..........................................................................74
3.13.2 Machine 2nd, 3rd, 4th reference point G30 ..........................................................75
3.14 Skip Interpolation G31 .....................................................................................................77
3.15 Automatic Tool Offset G36, G37......................................................................................79
3.16 Workpiece Coordinate System G50 ................................................................................81
3.17 Local Coordinate System ...................................................................................................82
3.18 Workpiece Coordinate System G54～G59 ........................................................................84
3.19 Fixed Cycle Command.......................................................................................................87
3.19.1 Axial cutting cycle G90 ..........................................................................................87
3.19.2 Radial cutting cycle G94........................................................................................90

Contents
III
3.19.3 Caution of fixed cycle commands ............................................................................92
3.20 Multiple Cycle Commands .................................................................................................93
3.20.1 Axial roughing cycle G71 .........................................................................................93
3.20.2 Radial roughing cycle G72.......................................................................................99
3.20.3 Closed cutting cycle G73.....................................................................................103
3.20.4 Finishing cycle G70................................................................................................107
3.20.5 Axial grooving multiple cycle G74 .......................................................................108
3.20.6 Radial grooving multiple cycle G75 ....................................................................... 111
3.21 Thread Cutting Commands ..............................................................................................114
3.21.1 Thread cutting with constant lead G32 ..................................................................115
3.21.2 Rigid thread cutting G32.1 .....................................................................................117
3.21.3 Thread cutting with variable lead G34.................................................................119
3.21.4 Z thread cutting G33............................................................................................121
3.21.5 Rigid tapping G84, G88 .........................................................................................122
3.21.6 Thread cutting cycle G92 .......................................................................................125
3.21.7 Multiple thread cutting cycle G76...........................................................................128
3.22 Constant Surface Speed Control G96, Constant Rotational Speed Control G97 ......132
3.23 Feedrate per Minute G98, Feedrate per Rev G99...........................................................133
3.24. Additional Axis Function ..................................................................................................135
3.24.1 Additional axis start ................................................................................................135
3.24.2 Motion of additional axis ........................................................................................135
3.24.3 Additional axis coordinates display........................................................................135
3.25 Macro Commands ............................................................................................................135
3.25.1 MACRO variables ..................................................................................................136
3.25.2 Operation and jump command G65 ....................................................................140
3.25.3 Program example with macro command ...............................................................143
3.26 Statement Macro Command.............................................................................................146
3.26.1 Arithmetic and logic operation ...............................................................................146
3.26.2 Transfer and cycle..................................................................................................147
3.27 Metric/Inch Switch ............................................................................................................150
CHAPTER 4 TOOL NOSE RADIUS COMPENSATION (G41, G42) ............................................. 152
4.1 Application ..........................................................................................................................152
4.1.1 Overview ..................................................................................................................152
4.1.2 Imaginary tool nose direction ...................................................................................152
4.1.3 Compensation value setting.....................................................................................156
4.1.4 Command format .....................................................................................................157
4.1.5 Compensation direction ...........................................................................................157
4.1.6 Notes ........................................................................................................................159
4.1.7 Application................................................................................................................160
4.2 Tool Nose Radius Compensation Offset Path....................................................................161
4.2.1 Inner and outer side .................................................................................................161
4.2.2 Tool traversing when starting tool ............................................................................162
4.2.3 Tool traversing in Offset mode .................................................................................163
4.2.4 Tool traversing in Offset canceling mode.................................................................167
4.2.5 Tool interference check ............................................................................................168
4.2.6 Commands for canceling compensation vector temporarily....................................170

GSK980TDc Turning CNC System User Manual
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ⅡOperation
CHAPTER 1 OPERATION MODE AND DISPLAY INTERFACE.................................................... 173
1.1 Panel Division.................................................................................................................... 173
1.1.1 State indication........................................................................................................ 174
1.1.2 Edit keypad.............................................................................................................. 174
1.1.3 Menu display ........................................................................................................... 175
1.1.4 Machine panel......................................................................................................... 176
1.2 Summary of Operation Mode ............................................................................................ 179
1.3 Display Interface................................................................................................................ 179
1.3.1 POS interface.......................................................................................................... 179
1.3.2 PRG interface.......................................................................................................... 184
1.3.3 TOOL OFFSET Interface ........................................................................................ 189
1.3.4 ALARM interface..................................................................................................... 193
1.3.5 Setting interface ...................................................................................................... 194
1.3.6 PARAMETER Interfaces ......................................................................................... 196
1.3.7 Diagnosis Interface ................................................................................................. 198
1.3.8 Graph Interface ....................................................................................................... 199
1.3.9 Ladder Interface ...................................................................................................... 200
CHAPTER 2 POWER ON/OFF AND PROTECTION..................................................................... 205
2.1 System Power-on .............................................................................................................. 205
2.2 System Power-off .............................................................................................................. 205
2.3 Overtravel Protection......................................................................................................... 206
2.3.1 Hardware overtravel protection............................................................................... 206
2.3.2 Software Overtravel Protection............................................................................... 206
2.4 Emergency Operation ....................................................................................................... 207
2.4.1 Reset ....................................................................................................................... 207
2.4.2 Emergency stop ...................................................................................................... 207
2.4.3 Feed hold ................................................................................................................ 207
2.4.4 Power-off ................................................................................................................. 207
CHAPTER 3 MANUAL OPERATION ............................................................................................. 209
3.1 Coordinate Axis Move ....................................................................................................... 209
3.1.1 Manual feed ............................................................................................................ 209
3.1.2 Manual rapid traverse ............................................................................................. 209
3.1.3 Speed tune .............................................................................................................. 210
3.2 Other Manual Operations...................................................................................................211
3.2.1 Spindle CCW, CW, stop control ...............................................................................211
3.2.2 Spindle jog................................................................................................................211
3.2.3 Cooling control ........................................................................................................ 212
3.2.4 Lubricating control................................................................................................... 212
3.2.5 Chuck control .......................................................................................................... 212
3.2.6 Tailstock control....................................................................................................... 213
3.2.7 Hydraulic control ..................................................................................................... 213
3.2.8 Manual tool change................................................................................................. 213
3.2.9 Spindle override ...................................................................................................... 214
CHAPTER 4 MPG/STEP OPERATION.......................................................................................... 215
4.1 Step Feed .......................................................................................................................... 215

Contents
V
4.1.1 Increment selection ................................................................................................. 215
4.1.2 Moving direction selection....................................................................................... 216
4.2 MPG(handwheel) Feed ..................................................................................................... 216
4.2.1 Increment selection ................................................................................................. 217
4.2.2 Moving axis and direction selection ........................................................................ 217
4.2.3 Other operations ..................................................................................................... 218
4.2.4 Explanation items.................................................................................................... 219
CHAPTER 5 MDI OPERATION...................................................................................................... 220
5.1 Block Input......................................................................................................................... 220
5.2 Block Execution................................................................................................................. 221
5.3 Parameter Setting.............................................................................................................. 221
5.4 Data Alteration ................................................................................................................... 222
5.5 Other Operations ............................................................................................................... 222
CHAPTER 6 PROGRAM EDIT AND MANAGEMENT ................................................................... 223
6.1 Program Creation .............................................................................................................. 223
6.1.1 Creating a block number......................................................................................... 223
6.1.2 Inputting a program ................................................................................................. 223
6.1.3 Searching a character ............................................................................................. 226
6.1.4 Inserting a character ............................................................................................... 229
6.1.5 Deleting a character................................................................................................ 230
6.1.6 Altering a character................................................................................................. 230
6.1.7 Deleting a single block ............................................................................................ 231
6.1.8 Copying and pasting a block................................................................................... 232
6.1.9 Canceling and recovering a program...................................................................... 233
6.1.10 Program save........................................................................................................ 233
6.1.11 Macro program edit ............................................................................................... 234
6.1.12 Creating and modifying a program annotation ..................................................... 234
6.2 Deleting Programs............................................................................................................. 235
6.2.1 Deleting a program.................................................................................................. 235
6.2.2 Deleting all programs .............................................................................................. 237
6.3 Selecting a Program.......................................................................................................... 238
6.3.1 Searching ................................................................................................................ 238
6.3.2 Scanning ................................................................................................................. 239
6.3.3 Direct confirmation .................................................................................................. 239
6.4 Executing a Program......................................................................................................... 240
6.5 Renaming a Program ........................................................................................................ 241
6.6 Copying a Program ........................................................................................................... 242
6.7 Program Management....................................................................................................... 244
6.7.1 Program list................................................................................................................ 244
6.8 Other Operations Available in Edit Mode .......................................................................... 244
CHAPTER 7 TOOL OFFSET AND SETTING ................................................................................ 246
7.1 Tool Positioning Setting ..................................................................................................... 246
7.2 Trial Toolsetting.................................................................................................................. 247
7.3 Toolsetting by Machine Zero Return ................................................................................. 248
7.4 Coordinates Record .......................................................................................................... 251
7.5 Setting and Altering the Offset Value ................................................................................ 252
7.5.1 Offset setting ........................................................................................................... 252

GSK980TDc Turning CNC System User Manual
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7.5.2 Offset alteration....................................................................................................... 252
7.5.3 Offset alteration in communication mode ............................................................... 253
7.5.4 Clearing the offset values ....................................................................................... 253
7.5.5 Setting and altering the tool wear ........................................................................... 253
7.5.6 Locking and unlocking the offset value................................................................... 254
7.5.7 No.0 tool offset moving workpiece coordinate system ........................................... 254
CHAPTER 8 AUTO OPERATION .................................................................................................. 256
8.1 Automatic Run................................................................................................................... 256
8.1.1 Selection of a program running............................................................................... 256
8.1.2 Start of automatic run.............................................................................................. 256
8.1.3 Stop of automatic run .............................................................................................. 256
8.1.4 Automatic run from an arbitrary block..................................................................... 257
8.1.5 Adjustment of the feedrate, rapid rate .................................................................... 258
8.1.6 Spindle speed adjustment....................................................................................... 258
8.2 Running State .................................................................................................................... 259
8.2.1 Single block execution ............................................................................................ 259
8.2.2 Dry run..................................................................................................................... 259
8.2.3 Machine lock ........................................................................................................... 259
8.2.4 MST lock ................................................................................................................. 260
8.2.5 Block skip ................................................................................................................ 260
8.3 MPG Trial-cut..................................................................................................................... 260
8.3.1 Switching MPG trial-cut mode................................................................................. 260
8.3.2 Command speed in MPG trial-cut mode ................................................................ 261
8.3.3 Notes in MPG trial-cut mode................................................................................... 262
8.3.4 Temporarily invalid in MPG trial-cut mode .............................................................. 262
8.4 Other Operations............................................................................................................... 263
CHAPTER 9 ZERO RETURN OPERATION .................................................................................. 264
9.1 Program Zero Return ........................................................................................................ 264
9.1.1 Program Zero .......................................................................................................... 264
9.1.2 Program zero return steps ...................................................................................... 264
9.2 Machine Zero Return......................................................................................................... 265
9.2.1 Machine Zero .......................................................................................................... 265
9.2.2 Machine Zero return steps ...................................................................................... 265
9.3 Other Operations in Zero Return....................................................................................... 266
CHAPTER 10 DATA SETTING ....................................................................................................... 267
10.1 Data Setting..................................................................................................................... 267
10.1.1 Switch setting ........................................................................................................ 267
10.1.2 Level setting .......................................................................................................... 267
10.1.3 Parameter operation ............................................................................................. 270
10.2 Clock Setting ................................................................................................................... 271
10.3 Graphic Display ............................................................................................................... 272
10.4 Parameter Setting ........................................................................................................... 275
10.4.1 State parameter..................................................................................................... 275
10.4.2 Data parameter, pitch compensation .................................................................... 278
10.4.3 Often used parameters ......................................................................................... 280
CHAPTER 11 U OPERATION FUNCTION .................................................................................... 283
11.1 File Management Function Introduction.......................................................................... 283

Contents
VII
11.2 Often Used File Operation Function Introduction............................................................ 283
11.2.1 File extension and return....................................................................................... 283
11.2.2 File selection and cancellation of file selection ..................................................... 284
11.2.3 File copy ................................................................................................................ 286
11.3 Data Copy and Resume .................................................................................................. 286
11.3.1 Entering backup/resume page .............................................................................. 286
11.3.2 Backup/resume operation ..................................................................................... 287
11.3.3 Operation path selection ....................................................................................... 287
11.3.4 Format of data backup/resume file........................................................................ 288
11.3.5 Level explanation of data backup/resume operation ............................................ 289
11.4 Notes................................................................................................................................ 289
CHAPTER 12 COMMUNICATION ................................................................................................. 290
12.1 GSK980TDc Communication Software GSKComm ....................................................... 290
12.1.1 GSKComm’s system (PC) requirements .............................................................. 290
12.1.2 Software interface ................................................................................................. 290
12.1.3 Receiving files (CNC→PC) ................................................................................... 291
12.1.4 Sending files (CNC→PC)...................................................................................... 293
12.1.5 Part program management................................................................................... 295
12.2 Preparatory before Communication ................................................................................ 296
12.2.1 Communication cable connection......................................................................... 296
12.2.2 Communication setting baud rate ......................................................................... 296
CHAPTER 13 MACHINING EXAMPLES ....................................................................................... 298
13.1 Programming ................................................................................................................... 299
13.2 Program Input.................................................................................................................. 301
13.2.1 View a saved program .......................................................................................... 301
13.2.2 Creating a new program ....................................................................................... 301
13.3 Checkout a Program .......................................................................................................... 302
13.3.1 Graphic setting......................................................................................................... 302
13.3.2 Program check ...................................................................................................... 302
13.4 Toolsetting and Running.................................................................................................. 303
III Connection
CHAPTER 1 NSTALLATION LAYOUT ........................................................................................... 307
1.1 GK980TDc System Connection ........................................................................................ 307
1.1.1 GK980TDc, GSK980TDc-V rear cover interface layout ..........................................308
1.1.2 Interface explanation................................................................................................308
1.2 GSK980TDc Installation .................................................................................................... 308
1.2.1 GSK980TDc external dimensions............................................................................308
1.2.2 Preconditions of the cabinet installation ..................................................................308
1.2.3 Measures against interference ................................................................................308
CHAPTER 2 DEFINITION & CONNECTION OF INTERFACE SIGNALS..................................... 310
2.1 Connection to Drive Unit ................................................................................................... 310
2.1.1 Drive interface definition ..........................................................................................310
2.1.2 Code pulse and direction signals.............................................................................310
2.1.3 Drive unit alarm signal nALM ...................................................................................310

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2.1.4 Axis enable signal nEN ............................................................................................311
2.1.5 Pulse disable signal nSET ....................................................................................... 311
2.1.6 Zero signal nPC .......................................................................................................311
2.1.7 Connection to a drive unit ........................................................................................313
2.2 Being Connected with Spindle Encoder............................................................................ 314
2.2.1 Spindle encoder interface definition.........................................................................314
2.2.2 Signal explanation....................................................................................................314
2.2.3 Being connected with spindle encoder interface .....................................................314
2.3 Being Connected with MPG (Manual Pulse Generator) ................................................... 315
2.3.1 MPG interface definition...........................................................................................315
2.3.2 Signal explanation....................................................................................................315
2.4 Spindle Interface................................................................................................................ 316
2.4.1 Spindle interface definition.......................................................................................316
2.4.2 Connection to inverter..............................................................................................317
2.5 GSK980TDc／GSK980TDc-V being Connected with PC ................................................ 317
2.5.1 Communication interface definition ............................................................................317
2.5.2 Communication interface connection.......................................................................317
2.6 Power Interface Connection.............................................................................................. 318
2.7 I/O Interface Definition....................................................................................................... 318
2.7.1 Input signal...............................................................................................................320
2.7.2 Output signal ............................................................................................................321
2.8 I/O Function and Connection ............................................................................................ 323
2.8.1 Stroke limit and emergency stop..............................................................................323
2.8.2 Tool change control ..................................................................................................325
2.8.3 Machine zero return .................................................................................................331
2.8.4 Spindle control..........................................................................................................337
2.8.5 Spindle switching volume control.............................................................................340
2.8.6 Spindle automatic gearing control............................................................................341
2.8.7 Spindle eight-point orientation function....................................................................343
2.8.8 Spindle Cs axis control function...............................................................................346
2.8.9 Multiple spindle function...........................................................................................349
2.8.10 Rigid tapping function ............................................................................................353
2.8.11 External cycle start and feed hold..........................................................................354
2.8.12 Cooling control .......................................................................................................355
2.8.13 Lubricating control..................................................................................................356
2.8.14 Chuck control .........................................................................................................357
2.8.15 Tailstock control......................................................................................................360
2.8.16 Low pressure detection..........................................................................................361
2.8.17 Hydraulic control (only applied to 980TDc-V)........................................................362
2.8.18 Safety door detection .............................................................................................362
2.8.19 CNC macro variables.............................................................................................363
2.8.20 External override ....................................................................................................363
2.8.21 External MPG.........................................................................................................364
2.8.22 Tri-color Lamp ........................................................................................................365
2.8.23 Gear/tool number display (only applied to 980TDc-V) ..........................................365
2.9 Commonly Use Symbol of Electricity Drawing.................................................................. 366
CHAPTER 3 PARAMETERS............................................................................................................. 367
3.1 Parameter Description (by sequence) .............................................................................. 367
3.1.1 Bit parameter............................................................................................................376

Contents
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3.1.2 Data parameter ........................................................................................................390
3.1.3 PLC parameters（standard PLC definition）..........................................................390
3.2 Parameter Description (by function sequence)................................................................. 394
3.2.1 X, Z, Y, 4th,5th axis control logic................................................................................394
3.2.2 Acceleration & deceleration control .........................................................................396
3.2.3 Precision compensation...........................................................................................397
3.2.4 Machine protection...................................................................................................399
3.2.5 Machine zero return .................................................................................................400
3.2.6 Threading function ...................................................................................................403
3.2.7 Spindle control..........................................................................................................404
3.2.8 Tool compensation ...................................................................................................406
3.2.9 Tool life management function .................................................................................406
3.2.10 Tool wear parameter ..............................................................................................407
3.2.11 Edit and display ......................................................................................................407
3.2.12 Communication setting ..........................................................................................408
3.2.13 MPG Parameters ...................................................................................................408
3.2.14 PLC axis control function .......................................................................................408
3.2.15 Skip function...........................................................................................................409
3.2.16 Automatic tool setting function...............................................................................409
3.2.17 Input and output function in metric and inch system .............................................410
3.2.18 Parameters related to arc turning ..........................................................................410
3.2.19 Parameters related to the additional......................................................................410
CHAPTER 4 MACHINE DEBUGGING METHODS AND MODES................................................. 412
4.1 Emergency Stop and Limit ................................................................................................ 412
4.2 Drive Unit Configuration .................................................................................................... 412
4.3 Gear Ratio Adjustment ...................................................................................................... 412
4.4 ACC&DEC Characteristic Adjustment............................................................................... 413
4.5 Mechanical (Machine) Zero Adjustment............................................................................ 414
4.6 Spindle Adjustment............................................................................................................ 416
4.6.1 Spindle encoder .......................................................................................................416
4.6.2 Spindle brake ...........................................................................................................416
4.6.3 Switch volume control of spindle speed...................................................................417
4.6.4 Analog voltage control of spindle speed..................................................................418
4.7 Backlash Offset ................................................................................................................. 417
4.8 Tool Post Debugging ......................................................................................................... 418
4.9 Step/MPG Adjustment ....................................................................................................... 418
CHAPTER 5 DIAGNOSIS MESSAGE............................................................................................ 420
5.1 CNC Diagnosis.................................................................................................................. 420
5.1.1 I/O status and data diagnosis message...................................................................420
5.1.2 CNC motion state and data diagnosis message .....................................................420
5.1.3 Diagnosis keys .........................................................................................................421
5.1.4 Others.......................................................................................................................422
5.2 PLC State .......................................................................................................................... 422
5.2.1 X address (machine→PLC , defined by standard PLC ladders) .............................422
5.2.2 Y address (PLC→machine, defined by standard PLC ladders) ..............................424
5.2.3 Machine panel..........................................................................................................426
5.2.4 F address(CNC→PLC) ............................................................................................428
5.2.5 G address (PLC→CNC)...........................................................................................432

GSK980TDc Turning CNC System User Manual
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5.2.6 Address A (message display requiery signal, defined by standard PLC ladders)...437
5.2.7 K address（K parameter, standard PLC definition）..............................................438
5.3 PLC Data ........................................................................................................................... 440
5.3.1 Timer address T(defined by standard PLC ladders)................................................440
5.3.2 Counter address C(Defined by standard PLC Ladders)..........................................441
5.3.3 Timer presetting address DT(Defined by standard PLC ladders) ...........................441
5.3.4 Counter presetting address DC ...............................................................................442
CHAPTER 6 MEMORIZING PITCH ERROR COMPENSATION................................................... 443
6.1 Function Description.......................................................................................................... 443
6.2 Specification ...................................................................................................................... 443
6.3 Parameter Setting ............................................................................................................. 443
6.3.1 Pitch compensation..................................................................................................443
6.3.2 Pitch error compensation number............................................................................443
6.3.3 Pitch error compensation interval ............................................................................444
6.3.4 Offset value ..............................................................................................................444
6.4 Notes of Offset Setting ...................................................................................................... 444
6.5 Setting Examples of Offset Parameters............................................................................ 444

I Programming

GSK980TDc Turning CNC System User Manual

Chapter 1 Programming
1
ⅠProgramming
CHAPTER 1 PROGRAMMING
1.1 GSK980TDc Introduction
1.1.1 Product introduction
GSK980TDc is a new upgraded software, its software, hardware based on GSK980TDb, its
structure horizontal and vertical, matched with 8.4 inch color LCD, with 5 feed axes (including C axis),
2 analog spindles, least input increment 0.1μm. It uses the graphic interface, friendly human-machine
operation window. It can realize the PLC on-line display, real-time monitoring and MPG trial-cut
function.
Being upgraded product of GSK980TDb, GSK980TDc CNC turning is the better choice.
.
GSK980TDc GSK980TDc-V
X, Z, Y, 4th, 5th ; axis name and axis type of Y, 4th, 5th can be defined
2ms interpolation period, control precision 1μm, 0.1μm
Max. speed 60m/min（up to 24m/min in 0.1μm）
Adapting to the servo spindle to realize the spindle continuously positioning, rigid tapping, and
the rigid thread machining
Built-in multi PLC programs, and the PLC program currently running can be selected
G71 supporting flute contour cycle cutting
Statement macro command programming, macro program call with parameter
Metric/inch programming, automatic toolsetting, automatic chamfer, tool life management
function
Chinese, English, Spanish, Russian display can be selected by parameters.
USB interface, U disc file operation, system configuration and software

GSK980TDc Turning CNC System User Manual
2
ⅠProgramming
2-channel 0V～10V analog voltage output, two-spindle control
1-channel MPG input, MPG function
41 input signals and 36 output signals
Appearance installation dimension and command system are compatible with those of
GSK980TDb, GSK980TDa
1.1.2 Technical specification
Controllable axes
Controllable axes: 5（X, Z, Y , 4th,5th）
Link axes：3
PLC controllable axes：3（X, Z, Y, 4th,5th）
Feed axis function
Least input increment: 0.001mm（0.0001inch）and 0.0001mm（0.00001inch）
Least command increment：0.001mm（0.0001inch）and 0.0001mm（0.00001inch）
Position command range: ±99999999× least command unit
Rapid traverse speed：max. speed 60m/min in 0.001mm command unit, max. speed
24m/min in 0.0001mm command unit
Rapid override: F0, 25%, 50%, 100%
Feedrate override: 0～150% 16 grades to tune
Interpolation mode: linear interpolation, arc interpolation(three-point arc interpolation),
thread interpolation, ellipse interpolation, parabola interpolation and rigid tapping
Automatic chamfer function
Thread function
General thread(following spindle)/rigid thread
Single/multi metric, inch straight thread, taper thread, end face thread, constant pitch
thread and variable pitch thread
Thread run-out length, angle, speed characteristics can be set
Thread pitch: 0.01mm～500mm or 0.06 tooth/inch～2540 tooth/inch
Acceleration/deceleration function
Cutting feed: linear
Rapid traverse: linear, S
Thread cutting: linear, exponential
Initial speed, termination speed, time of acceleration/deceleration can be set by
parameters
Spindle function
2-channel 0V～10V analog voltage output, two-spindle control
1-channel spindle encoder feedback, spindle encoder line can be set（100p/r～5000p/r）
Transmission ratio between encoder and spindle:（1～255）:（1～255）
Spindle speed: it is set by S or PLC, and speed range: 0r/min～9999r/min
Spindle override: 50%～120% 8 grades tune
Spindle constant surface speed control
Rigid tapping
Tool function