Fanuc System 3M Model A
The FANUC SYSTEM 3M-MODEL A is a 2 or 3 axis contouring Fanuc CNC control for drilling and milling machines. In particular, the FANUC SYSTEM 3M-MODEL A is designed to offer maximum economy. Therefore, it is most suitable for numerical control of conventional milling machines which are now controlled by program controller.
By the use of a high-speed microprocessor and many custom LSIs in the control circuits, the number of circuit elements has been drastically reduced, and the number of digital logic Fanuc printed circuit boards has been reduced to only one. The result is outstandingly high reliability. At the same time, since the control section including a power supply is very small (W:560mm H:400mm, D:220mm), it can be easily incorporated into a power magnetics control cabinet at machine side.
The FANUC SYSTEM 3M-MODEL A is of panel mount structure so that it can easily realize the integration of electric and mechanical systems. Furthermore, a built in programmable controller (FANUC PC-MODEL D) is available so that power magnetics control circuitry is simplified, realizing a more compact and integrated NC machine system.
Also available are the FANUC DC Servo Motor and GETTYS FANUC DC Servo Motor, which have been widely used throughout the world, providing high speed, powerful and stable machining. Furthermore, the FANUC DC Spindle Motor featuring totally enclosed and compact structure is capable of electric spindle orientation control (patent pending). It is, therefore more useful than ever.
PART PROGRAM STORAGE AND EDITINGTOOL LENGTH OFFSET (G43, G44, G49) and CUTTER COMPENSATION (G39-G42)
Tool length offset in the Z axis direction and FANUCs unique cutter compensation allows simplified tool setting and calculation free programming for the offset tool.
DECIMAL POINT PROGRAMMING
The decimal point can be used in the dimension word and is displayed with it. Therefore, the dimensions and the positions can be verified at a glance.
CANNED CYCLES (G73,G74,G76,G80-G89)
Twelve canned cycles are available, including drilling, tapping and boring.
ELECTRIC SPINDLE ORIENTATION CONTROL (option)
As spindle orientation control is performed electrically without mechanical structure, reliability is enhanced and orientation time substantially reduced.
This option is available only when FANUC DC spindle motor is adopted.
CIRCULAR INTERPOLATION BY RADIUS DESIGNATION
Circular interpolation is directly specified by the end point of an arc and the radius. Thus, no auxiliary calculations for center coordinates are necessary.
FANUC PC-MODEL D (option)
By incorporating the PC, machine interface can be drastically simplified. 2000 steps of sequence program, DI 104 points and DO 72 points.
COMBINED USE OF ABSOLUTE AND INCREMENTAL DIMENSION DATA WITHIN THE SAME BLOCK
This is one of the advantages of the FANUC SYSTEM 3M MODEL-A.
AUTOMATIC RECOGNITION OF EIA OR ISO (ASCII)
After reading the first EOB code, either EIA OR ISO code is automatically selected. (Only when program input/output option is selected)
3 AXIS CONTROL BY MANUAL PULSE GENERATORS AND PLAYBACK (option)
Using three manual pulse generators, a machine can be manually operated by simultaneous2 axis control, like a conventional milling machine. Playback is possible; the result of a manual trial cutting can be memorized in the NC for automatic operation.
Multiplication of the manual pulse generator is possible up to 100.
So the operator can manually move a machine in the same manner as with the handle of a conventional milling machine.
BUBBLE CASSETTE CONNECTION (option)
Compact and easy to use bubble cassettes (patent pending) can be used for transfer and storage of NC command data.
LSI cassette is also possible.
HIGH PERFORMANCE, HIGH RELIABILITY
Extensive use of high-speed microprocessors and many custom LSIs in the control circuit has drastically reduced the number of circuit elements, and only one digital logic circuit board is used for the control section.
Highly efficient power supply has been employed to reduce the heat generation. The keyboard switches for the NC operator's panel incorporate special rubber covers for dust and drip proofing. And even if a drift in the loop occurs, it is automatically compensated to maintain accurate positioning. Furthermore, very extensive performance tests before shipment ensure long lasting trouble free operation.
STORED PITCH ERROR COMPENSATION (option)
This unique FANUC feature increases machining accuracy and extends the useful life of the machine tool by allowing digital compensation for mechanical wear of the ball screw. Costly installation and adjustment of mechanical dogs become unnecessary.
HIGH PERFORMANCE, HIGH RELIABILITY
Extensive use of high speed microprocessors and many custom LSIs in the control circuit has drastically reduced the number of circuit elements, and only one digital logic circuit board is used for the control section.
Highly efficient power supply has been employed to reduce the heat generation. The keyboard switches for the NC operators panel incorporate special rubber covers for dust and drip proofing. And even if a drift in the servo loop occurs, it is automatically compensated to maintain accurate positioning.
Furthermore, very careful selection of components and very extensive performance tests before shipment ensure long lasting trouble free operation.
STORED PITCH ERROR COMPENSATION (option)
This unique FANUC feature increases machining accuracy and extends the useful life of the machine tool by allowing digital compensation for mechanical wear of the ballscrew. Costly installation and adjustment of mechanical dogs become unnecessary.
SPECIFICATION
STANDARD
Controlled Axes: 3 axes (X,Y and Z)
Simultaneously Controllable Axes: 2 axes (XY, ZX, YZ: 1 in MANUAL mode. However, in case that more than two manual pulse generators are used, two axes are controlled simultaneously.
Increment System
Data Input System: Keyboard input system
Decimal Point Programming
Maximum Programmable Dimensions: +- 7 digits.
Rapid Traverse: Refer to table1, page 8. (Rapid traverse override: 100%, 50%, 25% F0; parameter)
Feed Rate Range: Refer to table1, page 8. (Feed rate override: 0~150%)
Automatic Acceleration/Deceleration: Linear for rapid traverse, exponential for feed (by servo lag)
Combined use of Absolute/Incremental Programming in the same Block of Tape
Programming of Absolute Zero point
Positioning, Linear Interpolation, Multi-quadrant Circular Interpolation
Buffer Storage
Dwell
Auxiliary Function: M2, S2, T2
Cutter Compensation B: +-6 digits, G39, G40, G41, G42
Tool Length Offset: +-6 digits, G43, G44, G49 (Up to 32 sets in total of cutter compensation B and tool length offset values.)
Dry Run: Keyboard type Manual Data Input (MDI) and Universal Display (DPL) or CRT Character Display
Part Program Storage and Editing: Capacity; 33/66ft (10/20m) of tape information)
Subprogram Control: 2 loops
Self Diagnosis Backlash Compensation
Single Block Skip
Interlock
Machine Lock
Stored Stroke Limit 1
Manual Slide Movement Button (JOG and STEP feed)
Feed Hold
Program Protect
Sequence Number Display: 4 digits
Sequence Number Search
Program Number Search
Reference Point Return: Manual, Automatic (G28, G29)
Canned Cycles: G80~G89, G73, G74, G76
Constant Tangential Feed Rate Control
Mirror Image: X Axis, Y axis (by setting)
Emergency Stop
OPTIONS
Program Input/Output: Tape Reader, Bubble Cassette and Adapter, LSI Cassette and Adapter, ASR Interface, RS232C Interface
Tape Code: EIA RS-244-A or ISO 840 (Automatic recognition of EIA or ISO)
Manual Pulse Generator: Multiplication by 1,10 or 100 is possible
Three Axis Control by Manual Pulse Generators
Programmable Controller (FANUC PC-MODEL D) 2000 STEPS, DI; 104 points, DO; 72 points
Analog Voltage Output for Spindle: 0~10V (S4 digits direct designation)
Inch/Metric Conversion: Switchable by G Codes
Playback System
Electric Spindle Orientation Control
Offset Value Input by Programming
Stored Pitch Error Compensation
Servo Motors: FANUC DC Servo Motor and GETTYS-FANUC DC Servo Motor
Servo Amplifiers: 3 phase full waves SCR drive
Feedback: Pulse Encoder
Fanuc Power Supply (For Control Unit): AC 200/220V +-10%, -15% 50/60Hz +1Hz, Single Phase, 400VA
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