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GSK 988T User Manual

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416 pages
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In this user manual we have tried to describe the matters
concerning the operation of this CNC system to the greatest extent.
However, it is impossible to give particular descriptions for all
unnecessary or unallowable operations due to length limitation and
products application conditionsTherefore, the items not presented
herein should be regarded as “impossible” or “unallowable”.
Copyright is reserved to GSK CNC Equipment Co., Ltd. It
is illegal for any organization or individual to publish or reprint this
manual. GSK CNC Equipment Co., Ltd. reserves the right to ascertain
their legal liability.

Table of Contents

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GSK 988T Specifications

General IconGeneral
Control Axis Number5
Spindle Number2
Minimum Setting Unit0.001mm
Position Command Range±99999.999mm
Cutting Feedrate1-15000 mm/min
ModelGSK 988T
Rapid Traverse Override25%, 50%, 100%
Feedrate Override0~150%
InterfaceRS232, USB
Programming MethodISO code
Operating Temperature0-45°C
Storage Temperature-20-60°C
TypeCNC Controller
Electronic Gear Ratio1-65535/1-65535
Acceleration and Deceleration ModeLinear and S-curve
Humidity≤90% (non-condensing)

Summary

Introduction and Safety

Preface and Warnings

Describes the manual's purpose, limitations, and critical safety warnings for system operation.

Cautions and Responsibilities

Outlines essential cautions for delivery, inspection, connection, and troubleshooting, plus manufacturer/user responsibilities.

Chapter I: Programming Fundamentals

GSK988T Introduction

Overview of the GSK988T CNC system, its technical characteristics, and advantages.

Programming Fundamentals

Details on coordinate systems, increment systems, and interpolation functions.

Coordinate Value and Dimension

Explains absolute and incremental programming, diameter/radius programming, and unit conversions.

Structure of an NC Program

Defines the components of an NC program including name, block format, words, and numbers.

Program Run

Describes the sequence of program execution, including modes, stops, and skips.

Chapter II: G Commands

G Command Summary and Classification

Details on G command types (modal, non-modal) and lists common G codes.

Rapid Traverse (Positioning) G00

Explains the command function, format, and explanation for rapid traverse.

Linear Interpolation G01

Details the command function, format, explanation, and feedrate modes for linear moves.

Arc Interpolation G02, G03

Explains arc interpolation commands for clockwise and counter-clockwise moves.

Fixed Cycle Commands

Introduces fixed cycles for simplifying programming of common machining operations.

Macro Command

Covers macro command functionality, variable usage, and system variables for advanced programming.

Chapter III: Windows

Position Display Window

Describes how to view and interpret coordinate data including absolute, relative, and machine positions.

Program Window

Details on managing local and U disk directories, MDI program input, and item/times display.

System Window

Covers access to system settings, parameters, messages, file management, and ladder diagrams.

Setting Window

Provides access to tool offset, CNC setting, and macro variable configuration windows.

Message Window

Explains how to check alarm messages, history, and diagnosis information.

Graph Window

Details on setting graph parameters, displaying paths, and simulating cutting processes.

Chapter IV: Tool Nose Radius Compensation

Application Overview

Explains the necessity of tool nose radius compensation for machining accuracy.

Compensation Value Setting

Guides on setting imaginary tool nose numbers, radius values, and offset values.

G40/G41/G42 Command Function

Details on commands to cancel, left, or right compensation for tool nose radius.

Compensation Direction

Explains how to specify compensation direction based on tool nose and workpiece geometry.

Tool Traversing in Offset Mode

Describes tool movements within offset modes, inside and outside corners.

Tool Interference Check

Explains how the system detects and handles potential tool path interferences.

Chapter V: Manual Operation

Manual Reference Position Return

Details the procedure for manually returning the tool to a reference position.

Manual Feed

Explains how to move axes manually using switches, buttons, or MPG.

Increment Feeding

Describes incremental feeding steps and how to set movement distances.

MPG Feeding

Covers operation in MPG mode, including axis selection and override settings.

Chapter VI: Auto Operation

Auto Running

Details on starting, pausing, stopping, and resetting programs in automatic mode.

MDI Running

Explains how to edit and run programs directly using the MDI mode.

DNC Running

Describes running programs directly from an external computer via DNC.

Auto Running Control

Covers machine lock, miscellaneous function lock, dry run, single block, and feedrate overrides.

Chapter VII: Tool Offset and Setting Tools

Setting the Tool Offset and the Wearing Values

Provides methods for setting tool offsets and wear values via direct input, measuring, or +input.

Fixed-Point Tool Setting

Details the procedure for setting tool offsets using a fixed point.

Trial Cut Toolsetting

Explains how to set tool offsets using the trial cut method.

Position Record

Describes how to record the current tool position for toolseting operations.

Automatic Tool Compensation

Explains automatic tool setting and compensation based on measured position.

Chapter VIII: Setting and Display Graphs

Setting the Graph Parameter

Guides on setting graph parameters like offset values, workpiece dimensions, and magnification.

Path Graph Display and Operation

Explains how to display and interact with the tool path graph.

Simulation graph display and operation

Details how to view and operate the simulation graph for checking cutting processes.

Chapter IX: U disk Use

Sending a Program

Describes the process of copying programs between U disk and local directory.

Backup Value

Covers backing up system files, parameters, and servo parameters to a U disk.

Chapter X: Processing Examples

Outer End Face Machining

Provides a detailed example of machining an outer end face.

Compound Machining

Presents an example of performing compound machining operations.

Chapter XI: Parameters

Parameters Related to System Setting

Details parameters for system configuration, including switches and language settings.

Parameters Related to Coordinate System

Covers parameters for defining and managing machine, workpiece, and local coordinate systems.

Parameters Related to Feedrate

Explains parameters for setting feedrates, rapid traverse, and dry run speeds.

Parameters Related to the Tool Compensation

Details parameters for tool offset, wear, and nose radius compensation.

Parameters Related to the Canned Cycle

Lists parameters for various canned cycles like drilling, tapping, and roughing.

Parameters Related to the Rigid Tapping

Covers parameters specific to rigid tapping operations, including override and timing.

Parameters Related to the Polar Coordinate Interpolation

Details parameters for polar coordinate interpolation, including axis and override settings.

Parameters Related to the User Macro Program

Explains parameters for user-defined macro programs, variables, and control flow.

Parameters Related to Skip Function

Details parameters related to the skip function for G31 commands.

Parameters Related to Graphic Display

Covers parameters for configuring graphic display elements like path and simulation.

Parameters Related to Run Hour and Parts Count Display

Explains parameters for tracking machine operation time and part counts.

Parameters Related to MPG Feed

Details parameters for MPG feed, including override and direction settings.

Parameters Related to PLC Axis Control

Covers parameters for PLC axis control, including I/O signals and address definitions.

Parameters Related to Basic Function

Explains parameters for core functions like machine lock, dry run, and system settings.

Parameters Related to GSK-CAN Communication Function

Details parameters for GSK-CAN communication setup and servo connections.

Appendix 1: Alarm List

Program Alarms (P/S Alarms)

Lists common alarms encountered during program execution and their causes.

Parameter Alarms

Details alarms related to incorrect parameter settings or file issues.

Servo Alarms

Lists common alarms related to servo system faults and communication errors.

Overtravel Alarms

Describes alarms generated when axes exceed travel limits or enter forbidden areas.

System Alarms

Covers general system alarms like memory errors, initialization failures, and communication issues.

GSK-CAN Communication Prompts

Lists prompts and possible reasons for GSK-CAN communication errors.

Appendix 2: Standard Ladder Function Allocation

X, Y Addresses Definition

Defines standard PLC addresses for I/O signals and their functions.

Standard Operation Panel

Details the functions of keys and indicators on the operation panel.

Standard PLC Parameter Instruction

Provides explanations for PLC parameters like K, DT, D, and A addresses.

Appendix 3: Installation

GSK988T Appearance Dimension

Provides dimensional drawings for the GSK988T CNC system.

Machine Operation Panel MPU02A of GSK988T

Shows the appearance dimension of the MPU02A operation panel.

Machine Operation Panel MPU02B Appearance dimension of GSK988T

Provides the appearance dimensions for the GSK988T MPU02B operation panel.

GSK988T-H Appearance Dimension

Details the appearance dimensions for the horizontal GSK988T-H CNC system.

Appearance Dimension of GSK988T-H Operation panel

Shows the appearance dimensions for the GSK988T-H operation panel.

Appendix 4: Operation List

Data setting

Lists operations for setting workpiece, word, bit, macro variables, and tool offsets.

Search

Details operations for searching programs, system parameters, and servo parameters.

Delete

Describes operations for deleting programs, blocks, and tool data.

Create

Explains how to create new programs.

Rename

Covers the process of renaming existing programs.

Save as

Details how to save a program under a new name.

Execution

Explains how to select and execute programs in different modes.

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