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
IV
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