Chapter 1 Programming Fundmentals
3
I Programming
CHAPTER 1 PROGRAMMING FUNDMENTALS
1.1 Introduction
GSK980MDc Milling Machine system is a new generation of CNC system developed by GSK Company.
As the upgraded version of GSK980MD and GSK980MDa, it supports milling, boring and drilling cycle. It
employs 32 bits high-capability CPU and very large scale programmable device FPGA, applies real-time
multi-task control technology and hardware interpolation technology, and is able to perform μm level
precision motion control and PLC logic control. GSK980MDc is the optimum choice for upgrading CNC
milling machine.
Characteristics：
z Five axes control (X, Y, Z ,4th and 5th); 3 axes linkage; optional interpolation precision (1μm/0.1μm);
maximum speed 60m/min; optional axis types (linear axis or revolving axis) for the 4th and 5th axes;
CS axis control available for the 4th and 5th axes.
z Electronic gear ratio: (1～32767):(1～32767)
z Screw-pitch error compensation, backlash compensation, tool length compensation, tool abrasion
compensation and tool nose radius compensation.
z Embedded with PLC can be downloaded to CNC from PC.
z DNC function supports for real-time program transmission for machining.
z Be compatible with G commands of GSK980MC, GSK928MA, GSK980MD, GSK980MDc, executing
the cycle machining including drilling/boring, circle grooving/rectangular grooving, full-circle/rectangular
finishing, circular truncated cone/rectangular roughing, linear/rectangular continuous drilling,
supporting spiral interpolation, cylinder interpolation and polar coordinate command performing
z Spindle encoder tapping and rigid tapping can be detected during tapping cycle, so that high precision
machining can be performed.
z Supporting metric/inch programming with scaling on/off, programmable image and automatic
chamfering function
z Support statement macro command program, macro program call with parameters
z Supporting multi-additional coordinate system and local coordinate system
z Supporting PLC axis control function
z Chinese, English, Russian and Spanish display selected by the parameters.
z Full screen program editing; 40MB program capacity for storing up to 40000 of part programs.
z USB data communication; CNC system upgrading, machining programs reading through U disk and
bidirectional transfer between CNC and U disk.
z 2-channel 0V～10V analog voltage output
z 41 input interfaces/36 output interface meeting logical control requirements for disc tool magazine and
bamboo tool magazine
z Alarm log; multi-level passwords for equipment maintenance and management.
z
Bidirectional transfer between CNC and CNC, CNC and PC; upgrade of CNC software and PLC
programs;
z The installation dimensions and the electric ports are compatible with GSK980MD，GSK980MDc、
GSK980MC
Specifications
Controlled axes: five axes (X,Y,Z,4th and 5th); (for the 4th and 5th axes) optional
axis types (linear axis or revolving axis) and CS contouring control available;
Interpolation functions: linear interpolation (for X, Y, Z, 4th and 5th axes); helical
interpolation (for X, Y and Z axes); circular interpolation (for arbitrary 2 axes).
Position command range: -99999999 ～ 99999999; least command increment:
1μm/0.1μm; (selected via parameters)
Electronic gear ratio: command multiplier 1～32767, command frequency divisor
1～32767
Rapid traverse speed: maximum 60000mm/min
Rapid traverse override: F0, 25%, 50%, 100% four levels real-time tuning
Motion
control
Cutting feedrate: maximum 15000mm/min (feed per min.) or 500mm/r. (feed per
rotation)
Feedrate override: 0～150% sixteen-level real-time tuning
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