SZGH-CNC990MDb-2 2 Axis Milling CNC Controller
Item NO: SZGH-CNC990MDb-2
Minimum Order: 1 set
Package: canton
Place Of Origin: Shenzhen,China

SZGH-CNC990MDb-2 is economic type two axis milling CNC controller and control X,Y,two axes, support 2-channel analog, and C cutter offset, I/O 40X24, PLC,macro function,8.4 inch display(800x600), similar as Fanuc operation method, compatible with all kinds of motor and is very high performance and low cost milling CNC controller .
  • Features
  • Technical Specifications
  • Standard G codes list
  • Appearance Dimension
  • Inquire

1) The two axes of X,Y control, two axes linkage movement.

2) 2ms interpolation cycle,1um precision.

3) Maximum speed: 300m/min,Feeding speed: 15m/min

4) Multiple function,it can realize the drilling/boring,roughing of roun groove/rectangle groove,finishing of full circle/rectangle,continous drilling of straight line/rectangle/arc etc.

5) Built-in standard PLC program,and can be customized edited according to customer's askes.

6) Memory Capacity: 128MB,User Store Room: 100MB.

7) 8.4 inches(800*600) real csolour LCD displayer.

8) Support Metric system/Inch System,with function of auto charfering.

9) Display in Chinese and English,which can be selected by paramter.

10) With USB interface,support USB file processing,software upgrade.

11) DNC in high speed,realize part program real-time transmission processing.

12) Analog voltage output of 0V~10V in two channels,support two-spindle control.

13) Support external MPG.

14) Basic I/Os: 40*24, 24*24 can be edited freely.

Application: CNC milling machinery; CNC drilling machinery; CNC boring machinery;


Number of control axes

• Number of control axes: 2 axes ( X Y )

• Number of linkage axes: 2 axes ; Interpolation Axes: X Y ; Linear Interpolation: X Y  ; Arc Interpolation: 2 axes.

• Number of PLC control axes: 2 axes

Feeding axes function

• Minimum command unit: 0.001mm

• Position command range: +/- 99999.999

• Max speed: 30 m/min ; Feeding speed:0.001-15m/min 

• G00 rapid override: Total 8 levels: 0~150%,real-time adjusting

• Feeding override: Total 16 levels: 0~150%,real-time adjusting

• Spindle override: Total 16 levels: 5%~150%,real-time adjusting

• Interpolation mode: Interpolation of linear ,arc ,spiral and rigid tapping

• Auto chamfering

Acceleration and deceleration function

• Cutting feeding: Acceleration and deceleration

• Rapid traverse: Acceleration or deceleration

• Tapping

• The starting speed,finishing speed and time of acceleration and deceleration are set by parameter

Spindle function

• Analog voltage 0~10V output in two channels ,support two-spindle control

• Spindle encoder feedback in one channel,the resolution of spindle encoder can be set

• Spindle speed: It is set by speed parameter,max spindle speed also coressponding to 10V

• Spindle override: Total 16 levels: 5%~150%,real-time adjusting

• Spindle constant surface speed control

• Tapping cycle/ Ragid tapping

Tool Function

•Tool length compensation

• tool nose radius compensation (C type)

• Tool wearing compensation

Precision compensation

• Backlash compensation/Pitch error compensation in memory type

PLC function

• The refresh cycle: 8ms

• PLC program download by USB interface

• PLC program can be customized edited

• I/Os : 40*24 I/Os , 24*24 I/Os can be edit freely

Man-machine interface

• 8.4'' large screen real-color LCD , the resolution is 480 000

• Display in Chinese or English

• Display in two-dimensional tool path

• Real-time clock

Operation management

• Operate mode: Edit, Auto, Manual, MDI, mechanical zero return, MPG/single step, program zero-return

• Operation authority of multiple-level management

• Alarm record

Edit program

• Program capacity: 32M

• Editing function: program/block/characters research ,rewriting and deleting

• Program format: ISO code,support Macro command programming,programming of relative coordinate ,absolute coordinate and hybrid coordinate

• Calling program: Support macro program ,subprogram

Community function

• RS232: Files of part program can be transmitted

• USB: File operationand file directly processing in flash disk,support PLC programs,flash disk of software upgrade.

Safety function

• Emergency stop

• Hardware travel limit

• Software travel limit

• Data restoring and recovering

• User-defined alarm hint

System operation condition 

1) Power supplying
AC 220V(+10/-15), Frequency 50Hz±2%. power:≤ 200W. 
Note: it must use isolation transform to supply power first input:380V
2) Climate condition 
operation condition:temperature 0-45 degree,relative moisture 40-80%.
storage & transportation condition:temperature -40 ~ 55degree,relative moisture <93%(40degree).
atmosphere pressure:86-106kpa.
3) operation environment :
No excessive flour dust, no acid, no alkali gas and explosive gas, no strong electromagnetic interference.

G code
Fast decides
The straight line inserts makes up
Inserts along the circle makes up/the spiral line to insert makes up CW: The spiral motion spiral line inserts makes up the 2 circular arcs insert makes up the axis synchronization migration other axes. The instruction method only is simply adds on is not the circular arc inserts makes up the axis the shifting shaft
G03 The counter circle inserts makes up/the spiral line to insert makes up CCW
G04 00 pause
Polar coordinate instruction cancellation
Polar coordinate instruction: The polar coordinate (radius and angle), the angle to is chooses the plane the first axis to anti-clockwise changes, but the negative direction is clockwise changes .
Form :
G** G## G16
G00    IP   
G**Expresses the plane chosen
     G## mean G90Work piece coordinate system original point
G91Current position
Assigns the polar coordinate and zero point
Choose the X Yplane
XX axis or its parallel axis
YY axis or its parallel axis
ZZ axis or its parallel axis
G18 Choose the Z X plane
G19 Choose the Y Z plane
G20 06 Inch input
G21 Millimetre input
Go to first reference point
G30/G301/G302/G303/G304 Go to 2,3,4 reference point
G26 ZXY axis go to program original point
G261 X axis go to program original point
G262 Y axis go to program original point
G263 Z axis go to program original point
G264 A axis go to program original point
G265 B axis go to program original point
Cancel tool radius compensate
G41 tool radius compensateleft
G42 tool radius compensateright
G43 Tool lenthen positive compensate
Tool lenthen negative compensate
Tool adding offset
G46 Tool subtact offset
G47 Tool adding two multiple offset
G48 Tool subtact two multiple offset
Cancel tool lengthen compensate
Cancel scale zoom
G36 Enable scale zoomformatG36 X_Y_Z_R_
Cancel programmer mirror
G11 Enable programmer mirror
Set local coordinate
Chocie coordinate
G54 Chocie work coordinate 1
NoteThese six work coordinate save in CNCuser may choice any one
G55 Chocie work coordinate 2
G56 Chocie work coordinate 3
G57 Chocie work coordinate 4
G58 Chocie work coordinate 5
G59 Chocie work coordinate 6
exactitude stop
G64 Continue path work
rotate coordinateformat
G18    G68 a-b- R-; R:Angle
G69 Cancel rotate coordinate
Drill deep hole cycleformat
G73 X-Y-Z-R-Q-F- L -  
Zdistance from R to hole bottom
Rdistance from original to R
Qfeed depth every time
Ffeed speed
Lrepeat time
G74 Left Tap cycleformatG74X-Y-Z-R-P-F- L - 
G80 Cancel cycle mode
G81 Drill cycleformat G81 X-Y-Z-R-F- L -
G82 Drill cycleformatG82 X-Y-Z-R-P-F- L -
Drill cycleformat
G83 X-Y-Z-R-Q-F- L -P-
Right Tap cycle formatG84 X-Y-Z-R-P-F- L -
Drill cycleformat
G85 X-Y-Z-R-F- L -
G86 Drill cycleformatG86 X-Y-Z-R-F- L -
Drill cycle
G89 X-Y-Z-R-P-F-L-
Absolute program
G91 Increase program
Go back to origorinal point

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