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.
GSK980TA1/TA2, GSK980TB1/TB2, GSK98T CNC System User Manual
The User Manual is applied to the following CNC systems:
GSK 980TA1
GSK 980TA2
GSK 980TB1
GSK 980TB2
GSK 98T
GSK980TA1/TA2, GSK980TB1/TB2 and GSK98T are made by GSK
Equipment Co., Ltd.. GSK980TA1/TA2, GSK980TB1/TB2 are upgraded from
GSK980TA. GSK980TA2 and GSK980TB2 have USB communication
interfaces; GSK98T addes USB communication and three-state switch based
on GSK980TB1.
II
Foreword
FOREWORD
Dear user,
We are really grateful for your patronage and purchase of CNC systems made
by GSK CNC Equipment Co., Ltd.
The user manual describes the programming, operation, installation and
connection. 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!
III
GSK980TA1/TA2, GSK980TB1/TB2, GSK98T CNC System User Manual
Safety Precaution
Warning, caution and note
This manual includes safety precaution for protecting the user and preventing
damage to the machine. Precautions are clssified into Warning and Caution
according totheir bearing on safety. Read the Warning, Caution and Note thoroughly
before attempting to use the machine.
Warning
There is a danger of the user being injured or the equipment being damaged if
the approved procedure is not observed.
Caution
There is a danger of the equipment being damaged if the approved procedure is
not observed.
Note
It is used to indicate supplementary information other than Warning and Caution.
All specifications and designs herein are subject to change without further notice.
This manual is reserved by end user.
IV
Foreword
■Delivery and storage
z Packing box over 6 layers in pile is unallowed.
z Never climb the packing box, neither stand on it, nor place heavy objects on it.
z Do not move or drag the product by the cables connected with it.
z Forbid collision or scratch to the panel and displayer.
z Packing box should be protected from damping, insolation and raining.
■ Open packing box to check
z Ensure things in packing box are the required ones.
z Ensure the product is not damaged in delivery.
z Ensure the parts in packing box are in accordance to the order.
z Contact us in time if the product type is inconsistent with the order, there is short
of accessories, or product damage in delivery.
■ Connection
z Onlyqualified persons can connect the system or check the connection.
z The system must be earthed, its resistance must be less than 4 Ω and the
ground wire cannot be replaced by zero wire.
z Connection must be correct and firm to avoid the product to be damaged or other
unexpected result.
z Connect with surge diode in the specified direction to avoid the damage to the
system.
z Switch off power supply before pulling out plug or opening electric cabinet.
■ Troubleshooting
z Switch off power supply before troubleshooting or changing components.
z Troubleshoot and then startup the system when there is short circuit or overload.
z Do not switch on or off it frequently and an interval is 1 minute at least after the
system is powered on again.
V
GSK980TA1/TA2, GSK980TB1/TB2, GSK98T CNC System User Manual
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.
This user manual shall be kept by final user.
All specification and designs are subject to change without further notice.
VI
Contents
Contents
■ Delivery and storage ........................................................................................................................... V
■ Open packing box to check................................................................................................................. V
■ Connection .......................................................................................................................................... V
■ Troubleshooting .................................................................................................................................. V
PART ONE SUMMARY ................................................................................................ 1
Chapter One Summary ............................................................................................................................ 3
1.3 Model and Meaning.......................................................................................................................... 4
1.4 Order ................................................................................................................................................ 4
PART TWO PROGRAMMING ......................................................................................... 5
Chapter One Programming Fundamentals ........................................................................................... 7
7.2.4 Program Lock ........................................................................................................................ 165
7.3 Other Operations Available in Edit Mode ..................................................................................... 165
Chapter Eight AUTO Operation .......................................................................................................... 166
8.1 Selection of the Program To Be Run ............................................................................................ 166
8.2 Start of the Auto Run .................................................................................................................... 166
8.3 Auto Run Stop .............................................................................................................................. 167
8.4 Auto Run From an Arbitrary Block ................................................................................................ 167
8.5 Dry Run ........................................................................................................................................ 168
8.6 Single Block Execution ................................................................................................................. 169
2.6 Connection of the Power Interface............................................................................................... 201
Chapter Three I/O Interface of Machine Tool .................................................................................... 203
3.1 List of the Machine Tool I/O Interface .......................................................................................... 203
3.1.2 Expansion I/O Interface of GSK980TA1(2)/980TB1(2) ......................................................... 205
3.1.3 Standard I/O Output Interface of GSK98T ............................................................................ 207
3.2 Input Signal .................................................................................................................................. 208
3.3 Signal Expalnation ....................................................................................................................... 209
3.4 Output Signal ............................................................................................................................... 215
3.5 Spindle Automatic Gearing Control .............................................................................................. 218
3.6 Chuck Control (Chuck Detection Function) ................................................................................. 219
3.7 Tailstock Control (Tailstock hierarchical advance/retreat control) ................................................ 221
3.8 Handhold Unit .............................................................................................................................. 222
3.9 External Program Lock ................................................................................................................ 223
3.10 External Feed Pause and Spindle Pause .................................................................................. 223
3.11 I/O Signal Disgnosis List ............................................................................................................ 224
3.12 Function Description .................................................................................................................. 224
Chapter Four Machine Tool Debugging ............................................................................................. 226
Appendix I Paremeter List ................................................................................................................... 239
1. Explanations for parameter ............................................................................................................ 239
2. Bit parameter .................................................................................................................................. 239
3. Data Parameter .............................................................................................................................. 246
Appendix II Alarm List ......................................................................................................................... 269
Appendix III Diagnosis List ................................................................................................................. 278
● 4-layer circuit board with high integrated level, proper system technology structure and high
reliability;
● Chinese/English LCD,friendly interface and easy operation;
● Adjustable acceleration/deceleration to be matched with stepper drive unit or servo drive unit
● Changeable electronic gear ratio;
● Prepositioning USB interfaces and RS232 interfaces to be convenient to the user managing
programs.
Note: GSK980TA1, TB1 have no USB interfaces, GSK98T has no RS232 interfaces.
3
GSK980TA1/TA2, GSK980TB1/TB2, GSK98T CNC System User Manual
1.3 Model and Meaning
Part One Summary
GSK980TA1(2)/TB1(2)
Assembly method:none:standard panel
(420mm×260mm)
B:box assembly
GSK980TA1(2)/TB1(2) series turning CNC system
Product logo for GSK CNC Equipment Co., Ltd.
GSK98T
Assembly method:none:standard panel
(320mm×200mm)
B:box assembly
GSK98T series turning CNC system
Product logo for GSK CNC Equipment Co., Ltd.
Fig. 1-3
1.4 Order
Standard configuration of GSK98T is two-axis link.
GSK980TA1/TA2.GSK980TB1/TB2 can select Y as the additional axis and the user must remark
it. Refer to the supplementary about Y axis explanation.
Table 1-4
Model Explanation
GSK98T 320mm×200mm aluminium operation panel
GSK980TA1/TA2
GSK980TB1/TB2
GSK980TA1/TA2
GSK980TB1/TB2-B
420mm×260mm aluminium operation panel
GSK980TA1/TA2.GSK980TB1/TB2
Be matched with AP01 to operation box
(445mm×345mm×182mm)
4
Chapter One Programming Fundamentals
Part Two Programming
PART TWO PROGRAMMING
5
Part TwoPro
g
g
rammin
GSK980TA1/TA2, GSK980TB1/TB2, GSK98T CNC System User Manual
6
Chapter One Programming Fundamentals
Chapter One Programming Fundamentals
1.1 Coordinate axis definition
It is important to stipulate the coordinate axis name and movement direction of CNC machine.
Designers, operators and maintenance personnel of CNC machine should correctly understand it,
otherwise, it causes the mistaken programming and data communication, operation accidence,
abnormal maintenance, and so on.
Fig.1-1-1 is a axis sketch map of CNC turning machine.
Part Two Programming
Fig.1-1-1
The system uses a rectangular coordinate system composed of X, Z axis to execute the positioning
and the interpolation movement. X axis is in the direction of front and back in the plane, and Z axis is
of left and right. The negative direction of them approach to the workpiece and positive one is away
from it, which are shown in Fig.1-1-1.
The system supports a front tool post, a rear tool post function, and describes that the tool post
before the workpiece is called as a front tool post and it behind the workpiece is called as a rear tool
post. Fig. 1-1-2 is a coordinate system of the front tool post and Fig. 1—1-3 is a rear toolpost one. It
shows exactly the opposite of X axes, but the same of Z axes from figures. In the manual, it will
introduce programming application with the front tool post coordinate system in the following figures
and examples.
Fig.1-1-2 Front tool post coordinate systemFig.1-1-3 Rear tool post coordinate system
7
GSK980TA1/TA2, GSK980TB1/TB2, GSK98T CNC System User Manual
g
g
1.2 Machine coordinate system, Machine Zero
Machine tool coordinate system is a fixed one, its origin is taken as the machine zero installed on
the max. travel in positive X, Z axis. The machine zero is defined after the machine is designed,
manufactured and adjusted, and it is a fixed point. The machine zero is not defined when the CNC is
turned on, and generally, the automatic or manual machine zero return is executed to create the
machine coordinate system. CNC has created the machine coordinate system after the machine zero
return is completed.
Part TwoPro
rammin
Note: Do not execute the machine zero function(such as G28) without the machine zero switch installed on
the machine tool.
1.3 Workpiece Coordinate System and Reference Point(Program Zero)
A workpiece coordinate system (also called floating coordinate system) is used when programmers
in programming, programmer selects a known point on the workpiece as reference point (also called
program zero) to establish a new coordinate system, which is called a workpiece coordinate system.
Once the workpiece coordinate system has been established, it is valid until it is replaced by a new
one. When the system is turned off or power down, the program zero position is not saved. Using
G50 for the system creates a workpiece coordinate system. When there is no G50 in programs, the
current absolute coordinate value is taken the reference point to create a workpiece coordinate
system. The reference point selection of the workpiece coordinate system should meet the simple
programming, few dimension conversions and machining error. Generally, the reference point should
be on the reference marked by the dimension or positioning reference. For turning machine
programming, the reference point should be on the intersection point between the workpiece’s axis
and the end face of the chuck (Fig.1-3-1) or the workpiece’s end face (Fig.1-3-2).
Fig.1-3-1 reference point on end face of chuck
8
1.4 Controlled axes
GSK98T
GSK980TA1/TA2,
GSK980TB1/TB2
Chapter One Programming Fundamentals
Fig. 1-3-2 reference point on workpiece’s end face
Table 1-4-1
Controlled axes
Simultaneously controlled axes
Controlled axes
Simultaneously controlled axes
2 axes(X,Z)
2 axes(X,Z)
3 axes X,Z,Y)
3 axes(X,Z,Y)
Part Two Programming
1.5 Input Increment
Table 1-5-1
Input/output Least input increment Least command increment
X:0.001 mm(Diameter
Metric input /metric output
Diameter/radius designation is set by NO:1#2 and the parameter is valid only to X.
The input increment is referred to the machine manufacture’s User Manual.
Z:0.001 mm
X:0.001 mm (Radius
Z:0.001 mm
)
)
X:0.0005 mm
Z:0.001 mm
X:0.001 mm
Z:0.001 mm
1.6 Maximum Stroke
Maximum stroke = least input increment×9999999
1.7 Absolute Programming and Incremental Programming
The movement of the command axis is divided into: absolute command and incremental
command. The absolute command is to use the end point of axis movement to execute programming,
which is called absolute programming. The incremental command is to use the axis movement to
directly execute programming, which is called incremental programming. For the system, the
absolute programming uses X,Z and the incremental programming uses U, W.
9
GSK980TA1/TA2, GSK980TB1/TB2, GSK98T CNC System User Manual
g
g
Table 1-7-1
Absolute command Incremental command Remark
X U X movement command
Z W Z movement command
Example: Using an absolute coordinates, incremental coordinates and compound coordinates
Suppose that current coordinate point of the tool is on A, the
linear interpolation is executed.
Note: When there are command address X/ U or Z/ W at the same time, #132 alarm occurs: X, U or Z,W
exist simultaneously.
Example: G50 X10 Z20;
G01 X20 W30 U20 Z30;
1.8 Diameter and Radius Programming
The appearance of the machined workpiece is a rotating body, among which X dimension can be
specified by: the diameter and the radius, which is set by the bit of NO:1#2.
When NO:1#2 is set to 1, the radius is specified to execute programming.
When NO:1#2 is set to 0, the diameter is specified to execute programming.
10
Chapter One Programming Fundamentals
Table 1-8-1 diameter, radius designation
Item Diameter designation Radius designation
Z command
X command
Not related to diameter, radius designation
Diameter designation Radius designation
Incremental command of
Diameter designation Radius designation
address U
Coordinate system setting
Diameter designation Radius designation
(G50)
X value of too offset
NO:2#5 specifies the diameter designation or radius
designation
Radius command of circular
Radius designation Radius designation
interpolation(R,I,K)
X feedrate
X position display
Radius change (mm/min, mm/r)
Display diameter value Display radius value
Note 1: The diameter designation is used except for special explanation in the User Manual.
Note 2: The tool offset using diameter/radius is defined that the outside diameter of workpiece
uses diameter or radius when the tool offset is changed.
Example: when the diameter is specified, and the compensation value changes 10mm,
the diameter value of the workpiece’s outside diameter changes 10mm; when the radius
is specified, and the compensation value changes 10mm, the diameter value of the
workpiece’s outside diameter changes 20mm.
Part Two Programming
1.9 Modal, Simple and Initial State
The modal is defined that after the function and state of the corresponding word are executed,
they are valid till they are done again, namely, and the same functions and states are used in the
following blocks are, the word need not be input again.
Example:
G0 X100 Z100;(rapid position to X100 Z100)
X120 Z30;(rapid position to X120 Z30,G0 is modal and can be omitted)
G1 X50 Z50 F300;(linear interpolation to X50 Z50,feedrate 300mm/min G0→G1,)
X100;(linear interpolation to X100 Z50,feedrate 300 mm/min, G1Z, 50, F300 are modal and
can be omitted)
G0 X0 Z0;(rapid position to X0 Z0)
The simple is defined that after the function and state of the corresponding word are executed,
they are valid one time, namely, and the same functions and states are used in the following blocks
are, the word needs be input again.
The initial state is defined to the default function and state after the system is turned, namely, the
system executes the initial function and state when the system is turned but does not define the
corresponding function and state. The initial state of the system includes G00, G40, G97, G98, M05,
M09, M33.
Example:
11
Part TwoPro
g
g
rammin
GSK980TA1/TA2, GSK980TB1/TB2, GSK98T CNC System User Manual
O0001;
G0 X100 Z100; (rapid position to X100 Z100,G0 is the system’s initial state)
G1 X0 Z0 F100; (linear interpolation X0 Z0,feed per minute,feedrate 100 mm/min,
G98 is the initial state after power on)
12
Chapter Two Structure of an Part Program
Chapter Two Structure of an Part Program
A program is defined to a series collection of commands to control the CNC machine to complete
workpiece machining. After the complied programs are input to the CNC system, the CNC system
controls the tool movement along the linear and arc, the spindle starting/stopping, the cooling and the
lubricating ON/OFF according to the commands. The commands in the program are compiled
according to the actual movement sequence of the machine.
2.1 General Structure of a Program
A program consists of a sequence of block which is composed by words. Each block is
separated by the block end command (ISO is LF, EIA is CR). “;” is used in the User Manual to mean
the end of block.
General structure of a program is shown in Fig. 2-1-1.
Program nameSerial number
O0001
N0010 G50 X1000 Z100 ;
N0020 G0 X40 Z5 ;
N0030 G01 X10 Z-30 F200 ;
N0040 G01 U50 W20 F100 ;
… … ;
… … ;
… … ;
N0200 M30 ;
;
Word
End of program
Character of block end
Block
program end
Character of
Part Two Programming
Program
Fig. 2-1-1
2.1.1 Program Name
There are most 500 programs stored in GSK980TDa. To identify it, each program has only one
program name (there is no the same program name) beginning with command address O and the
following 4 digits.
○□□□□
Program number (0000~9999, the leading zero can be omitted)
Address O
13
%
Part TwoPro
g
g
rammin
GSK980TA1/TA2, GSK980TB1/TB2, GSK98T CNC System User Manual
End of a program
A program starts with its program name and ends with “%”.
2.1.2 Sequence Number and Block
A program consists of many commands and one command unit is called a block (Fig.2-1-1). A
block end command is used to separate blocks (Fig. 2-1-1), and “;” is the block end command in the
User Manual.
The beginning of a block can use a sequence number composed by the address N and its
following 4 digits.
N □□□□
sequence number (0001~9999, the leading zero can be omitted)
Address N
The sequence of a sequence number is arbitrary (NO:2 # 7 sets whether another sequence
number is inserted) and its interval is not equal (the interval size is set by P50, the interval of GSK98T
system is set by P119). All blocks can be with sequence numbers and some key blocks can be with
them. Generally, sequence number is from the small to the big according to machining sequence.
2.1.3 Word
A word is an element of a block. A word is composed by an address and its following
digit(some is with + or - before the digit), which is shown in Fig. 2-1-3:
X
1000
Address Digit
Word
Fig. 2-1-3-1
An address is one of English letters. The address describes the meaning of its following
numerical. In the system, the useful addresses and meanings are shown in Fig. 2-1-3-1. Some
address has different meanings according to different commands.
Address Value range Function
Table 2-1-3-1 address list
Z
AddressDigit
-500
Word
O
N
G
X
14
Z
-9999.999~9999.999(mm)
-9999.999~9999.999(mm)
0~9999
1~9999
00~99
0~9999.999(s)
Program name
Block number
Preparatory function
X coordinate
Pause time
Z coordinate
Chapter Two Structure of an Part Program
Address Value range Function
U
W
R
-9999.999~9999.999(mm)
-9999.999~9999.999(mm)
0.001~9999.999 (mm)
-9999.999~9999.999(mm)
-9999.999~9999.999(mm)
0.001~9999.999(mm)
-9999.999~9999.999(mm)
-9999.999~9999.999
(mm)
0~9999.999(mm)
0.001~9999.999(mm)
1~9999999(times)
0~9999.999(mm)
0~9999.999(mm)
0~9999.999(mm)
-9999.999~9999.999(mm)
X increment
X finishing allowance in G71,G72, G73
Cutting depth in G71
Travel of X tool retraction in G73
Z increment
Cutting depth in G72
Z finishing allowance in G71,G72, G73
Z tool retraction in G73
Arc radius
Tool retraction in G71, G72
Roughing cycle times in G 73
Tool retraction in G74, G75
Tool retraction distance G74, G75
Finishing allowance in G76
Taper in G90, G92, G94, G96
Part Two Programming
K
F
S
T
M
P
-9999.999~9999.999(mm)
I
0.06~25400(tooth/inch)
-9999.999~9999.999(mm)
X vector between arc center and starting
point
Metric thread tooth
Z vector between arc center and starting
point
1~8000(mm/min)
0.001~500(mm/r)
0.001~500(mm)
0~9999(r/min)
0~9999(m/min)
00~04
10~99
0100~0800
00~99
Specifying spindle constant surface speed
Miscellaneous function output, program
Feedrate per minute
Feedrate per rev
Metric thread lead
Specifying spindle speed
Multi-gear spindle output
Subprogram call
Tool function, subprogram call
executed flow, subprogram call
1~9999999(0.001s)
0~9999
0~999
0.001~9999.999(mm)
See Chapter 3.4, G76
Call subprogram number
Call times of subprogram
X circular moving distance in G74, G75
Thread cutting parameter in G76
Pause time
Explanation
1~9999
Initial block number of finishing in the
compound cycle command
15
Part TwoPro
g
g
rammin
GSK980TA1/TA2, GSK980TB1/TB2, GSK98T CNC System User Manual
Address Value range Function
1~9999
Q
H
L
The limited values described in Table 2-1-3-1 are for the CNC device, but the limited values for
the machine are not described here. Please refer to the user manual, another user manual from the
machine manufacturer when programming.
0.001~9999.999(mm)
1~9999.999(mm)
01~99
01~99
End block number of finishing in the
compound cycle
Z circular moving distance in G74, G75
First cutting depth in G76
Operand in G65
Thread heads in G92
2.2 Relationship between Command Numerical Value and Decimal Point
In the system, some command cannot be with a decimal point, and No:11#0 sets whether the
decimal point is used when programming, and the relationship between the command numerical
value and the decimal point is shown in Fig.2-2-1:
Address
X
Z
U
W
R
I
K
P
S
Table 2-2-1
Having a
decimal point
Yes
Yes Command:G1 Z20
Yes Command:G1 U20
Yes Command:G1 W20
Yes
Yes
Yes
No
No
NO:11#0=1 NO:11#0=0 Remark
Command:G1 X20
Positioning point:20
Command:G4 X20
Delay:20s
Positioning point:20
Incremental value:
20mm
Incremental value:
20mm
Command:G4 P2
Delay:0.002s
Command:G1 X20
Positioning point:0.02
Command:G4 X20
Delay:0.02s
Command:G1 Z20
Positioning point:0.02
Command:G1 U20
Incremental value:
0.02mm
Command:G1 W20
Incremental value:
0.02mm
It is the
same as the
address X
It is not
related to
the decimal
point
16
Chapter Two Structure of an Part Program
2.3 Subprogram
2.3.1 Main Program and Subprogram
To simply the programming, when the same or similar machining path and control procedure is
used many times, its program commands are edited to a sole program to call. The main program is
defined to call others and the subprogram(end with M99) is to be called. They both take up the
program capacity and storage space of system. The subprogram has own name, and can be called at
will by the main program and also can run separately. The system returns to the main program to
continue when the subprogram ends, which is shown below:
Called subprogram number(0000~9999). The leading zero
of subprogram number can be omitted when the calling times is
not input; the subprogram number must be with 4 digits when
the calling times is input;
Subprogram
Call times: 1-9999. The calling times cannot be input when it is 1.
Command function: After other commands of current block are executed in M98, CNC calls
subprograms specified by P instead of the next block, and subprograms are
executed 9999 times at most.
Note: The system cannot call a subprogram in MDI mode.
2.3.3 Return from subprogram(M99)
Command format
17
GSK980TA1/TA2, GSK980TB1/TB2, GSK98T CNC System User Manual
g
g
Part TwoPro
rammin
M99
Command function: After other commands of the current block (in the subprogram) are executed,
Example: Execution path of calling subprogram (with P in M99) is shown in Fig. 2-3-3-1.
Execution path of calling subprogram (without P in M99) is shown in Fig. 2-3-3-2.
P
Return to the block number (0001~9999)of the main program, the
leading zero can be omitted.
the system returns to the main program and continues to execute next block
specified by P, and calls a block following M98 of current subprogram when P
is not input. The current program is executed repeatedly when M99 is defined
to end of the main program.