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  3. E70 Series

Mitsubishi Electric E70 Series Programming Manual

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Introduction
This manual is a guide for using the MITSUBISHI CNC E70 Series.
Programming is described in this manual, so read this manual thoroughly before starting programming. Thoroughly study
the "Precautions for Safety" on the following page to ensure safe use of this NC unit.
Details described in this manual
CAUTION
For items described as "Restrictions" or "Usable State" in this manual, the instruction manual issued by
the machine tool builder takes precedence over this manual.
Items not described in this manual must be interpreted as "not possible".
This manual is written on the assumption that all option functions are added.
Refer to the specifications issued by the machine tool builder before starting use.
Refer to the Instruction Manual issued by each machine tool builder for details on each machine tool.
Some screens and functions may differ depending on the NC system (or its version), and some functions
may not be possible. Please confirm the specifications before use.
General precautions
(1) Refer to the following documents for details on handling
MITSUBISHI CNC E70 Series Instruction Manual ............ IB-1501186
Precautions for Safety
Always read the specifications issued by the machine tool builder, this manual, related manuals and attached documents
before installation, operation, programming, maintenance or inspection to ensure correct use.
Understand this numerical controller, safety items and cautions before using the unit.
This manual ranks the safety precautions into "DANGER", "WARNING" and "CAUTION".
Note that even items ranked as " CAUTION", may lead to major results depending on the situation. In any case,
important information that must always be observed is described.
The following sings indicate prohibition and compulsory.
The meaning of each pictorial sing is as follows.
DANGER
When the user may be subject to imminent fatalities or major injuries if handling is mistaken.
WARNING
When the user may be subject to fatalities or major injuries if handling is mistaken.
CAUTION
When the user may be subject to injuries or when physical damage may occur if handling is mistaken.
This sign indicates prohibited behavior (must not do).
For example, indicates "Keep fire away".
This sign indicated a thing that is pompously (must do).
For example, indicates "it must be grounded".
CAUTION
CAUTION
rotated object
CAUTION HOT
Danger
Electric shock risk
Danger
explosive
Prohibited
Disassembly is
prohibited
KEEP FIRE AWAY
General instruction
Earth ground
Mitsubishi CNC is designed and manufactured solely for applications to machine tools to be used for industrial
purposes.
Do not use this product in any applications other than those specified above, especially those which are
substantially influential on the public interest or which are expected to have significant influence on human lives or
properties.
Not applicable in this manual.
1. Items related to operation
If the operation start position is set in a block which is in the middle of the program and the program is
started, the program before the set block is not executed. Please confirm that G and F modal and
coordinate values are appropriate. If there are coordinate system shift commands or M, S, T and B
commands before the block set as the start position, carry out the required commands using the MDI, etc.
If the program is run from the set block without carrying out these operations, there is a danger of
interference with the machine or of machine operation at an unexpected speed, which may result in
breakage of tools or machine tool or may cause damage to the operators.
Under the constant surface speed control (during G96 modal), if the axis targeted for the constant surface
speed control (normally X axis for a lathe) moves toward the spindle center, the spindle rotation speed will
increase and may exceed the allowable speed of the workpiece or chuck, etc. In this case, the workpiece,
etc. may jump out during machining, which may result in breakage of tools or machine tool or may cause
damage to the operators.
For Safe Use
DANGER
WARNING
1. Items related to product and manual
For items described as "Restrictions" or "Usable State" in this manual, the instruction manual issued by
the machine tool builder takes precedence over this manual.
Items not described in this manual must be interpreted as "not possible".
This manual is written on the assumption that all option functions are added. Refer to the specifications
issued by the machine tool builder before starting use.
Refer to the Instruction Manual issued by each machine tool builder for details on each machine tool.
Some screens and functions may differ depending on the NC system (or its version), and some functions
may not be possible. Please confirm the specifications before use.
2. Items related to operation
Before starting actual machining, always carry out graphic check, dry run operation and　single block
operation to check the machining program, tool offset amount,　workpiece compensation amount and etc.
If the workpiece coordinate system offset amount is changed during single block stop, the new setting will
be valid from the next block.
If the tool offset amount is changed during automatic operation (including during single block stop), it will
be validated from the next block or blocks onwards.
Do not make the synchronous spindle rotation command OFF with one workpiece chucked by the basic
spindle and synchronous spindle during the spindle synchronization.
Failure to observe this may cause the synchronous spindle stop, and hazardous situation.
3. Items related to programming
The commands with "no value after G" will be handled as "G00".
";" "EOB" and "%" "EOR" are expressions used for explanation. The actual codes are: For ISO: "CR, LF", or
"LF" and "%".
Programs created on the Edit screen are stored in the NC memory in a "CR, LF" format, but programs
created with external devices such as the FLD or RS-232C may be stored in an "LF" format.
The actual codes for EIA are: "EOB (End of Block)" and "EOR (End of Record)".
When creating the machining program, select the appropriate machining conditions, and make sure that
the performance, capacity and limits of the machine and NC are not exceeded. The examples do not
consider the machining conditions.
Do not change fixed cycle programs without the prior approval of the machine tool builder.
CAUTION
Disposal
(Note) This symbol mark is for EU countries only.
This symbol mark is according to the directive 2006/66/EC Article 20 Information for end-
users and Annex II.
Your MITSUBISHI ELECTRIC product is designed and manufactured with high quality materials and
components which can be recycled and/or reused.
This symbol means that batteries and accumulators, at their end-of-life, should be disposed of
separately from your household waste.
If a chemical symbol is printed beneath the symbol shown above, this chemical symbol means that the
battery or accumulator contains a heavy metal at a certain concentration. This will be indicated as
follows:
Hg: mercury (0,0005%), Cd: cadmium (0,002%), Pb: lead (0,004%)
In the European Union there are separate collection systems for used batteries and accumulators.
Please, dispose of batteries and accumulators correctly at your local community waste collection/
recycling centre.
Please, help us to conserve the environment we live in!
Trademarks
MELDAS, MELSEC, EZSocket, EZMotion, iQ Platform, MELSOFT, GOT, CC-Link, CC-Link/LT and CC-Link
IE are either trademarks or registered trademarks of Mitsubishi Electric Corporation in Japan and/or other
countries.
Ethernet is a registered trademark of Xerox Corporation in the United States and/or other countries.
Microsoft® and Windows® are either trademarks or registered trademarks of Microsoft Corporation in the
United States and/or other countries.
CompactFlash and CF are either trademarks or registered trademarks of SanDisk Corporation in the United
States and/or other countries.
UNIX is a registered trademark of The Open Group in the United States and/or other countries.
Intel® and Pentium® are either trademarks or registered trademarks of Intel Corporation in the United States
and/or other countries.
Other company and product names that appear in this manual are trademarks or registered trademarks of the
respective companies.
本製品の取扱いについて
( 日本語 /Japanese)
本製品は工業用 ( クラス A) 電磁環境適合機器です。販売者あるいは使用者はこの点に注意し、住商業環境以外で
の使用をお願いいたします。
Handling of our product
(English)
This is a class A product. In a domestic environment this product may cause radio interference in which case the
user may be required to take adequate measures.
본 제품의 취급에 대해서
( 한국어 /Korean)
이 기기는 업무용 (A 급 ) 전자파적합기기로서 판매자 또는 사용자는 이 점을 주의하시기 바라며 가정외의 지역에
서 사용하는 것을 목적으로 합니다 .
CONTENTS
1 Control Axes ................................................................................................................................................ 1
1.1 Coordinate Words and Control Axes .................................................................................................... 2
1.2 Coordinate Systems and Coordinate Zero Point Symbols .................................................................... 4
2 Least Command Increments ...................................................................................................................... 7
2.1 Input Setting Unit .................................................................................................................................. 8
3 Program Formats ........................................................................................................................................ 9
3.1 Program Format .................................................................................................................................. 10
3.2 File Format .......................................................................................................................................... 14
3.3 Optional Block Skip ............................................................................................................................. 16
3.3.1 Optional Block Skip; / ................................................................................................................. 16
3.4 G code ................................................................................................................................................ 18
3.4.1 Modal, unmodal .......................................................................................................................... 18
3.4.2 G code Lists ................................................................................................................................ 18
3.4.3 Table of G Code Lists ................................................................................................................. 19
3.5 Precautions Before Starting Machining ............................................................................................... 23
4 Pre-read Buffers ........................................................................................................................................ 25
4.1 Pre-read Buffers .................................................................................................................................. 26
5 Position Commands ................................................................................................................................. 27
5.1 Absolute/Incremental Value Commands ; G90,G91........................................................................... 28
5.2 Radius/Diameter Designation ............................................................................................................. 30
5.3 Inch/Metric Conversion ; G20,G21....................................................................................................... 31
5.4 Decimal Point Input ............................................................................................................................. 32
6 Interpolation Functions ............................................................................................................................ 37
6.1 Positioning (Rapid Traverse) ; G00..................................................................................................... 38
6.2 Linear Interpolation ; G01 .................................................................................................................... 45
6.3 Circular Interpolation ; G02,G03......................................................................................................... 47
6.4 R Specification Circular Interpolation ; G02,G03................................................................................. 51
6.5 Plane Selection ; G17,G18,G19........................................................................................................... 53
6.6 Thread Cutting..................................................................................................................................... 55
6.6.1 Constant Lead Thread Cutting ; G33........................................................................................... 55
6.6.2 Inch Thread Cutting ; G33........................................................................................................... 59
6.6.3 Continuous Thread Cutting ; G33............................................................................................... 61
6.6.4 Variable Lead Thread Cutting ; G34............................................................................................ 62
6.7 Helical Interpolation ; G17,G18,G19 and G02,G03 .............................................................................64
7 Feed Functions .......................................................................................................................................... 69
7.1 Rapid Traverse Rate............................................................................................................................ 70
7.2 Cutting Feedrate ................................................................................................................................. 71
7.3 F1-digit Feed........................................................................................................................................ 72
7.4 Feed Per Minute/Feed Per Revolution (Asynchronous Feed/Synchronous Feed) ; G94,G95 ............ 75
7.5 Feedrate Designation and Effects on Control Axes............................................................................. 78
7.6 Thread Cutting Mode........................................................................................................................... 83
7.7 Automatic Acceleration/Deceleration.................................................................................................. 84
7.8 Rapid Traverse Constant Inclination Acceleration/Deceleration ......................................................... 85
7.9 Cutting Feed Constant Inclination Acceleration/Deceleration.............................................................. 90
7.10 Speed Clamp..................................................................................................................................... 97
7.11 Exact Stop Check ; G09..................................................................................................................... 98
7.12 Exact Stop Check Mode ; G61......................................................................................................... 102
7.13 Deceleration Check.......................................................................................................................... 103
7.13.1 G1 -> G0 Deceleration Check.................................................................................................. 105
7.13.2 G1 -> G1 Deceleration Check.................................................................................................. 106
7.14 Automatic Corner Override ; G62..................................................................................................... 107
7.15 Tapping Mode ; G63 ........................................................................................................................ 112
7.16 Cutting Mode ; G64......................................................................................................................... 113
8 Dwell.......................................................................................................................................................... 115
8.1 Dwell (Time Designation) ; G04......................................................................................................... 116
9 Miscellaneous Functions ....................................................................................................................... 119
9.1 Miscellaneous Functions (M8-digits) ................................................................................................. 120
9.2 Secondary Miscellaneous Functions (A8-digits, B8-digits or C8-digits) ............................................122
10 Spindle Functions.................................................................................................................................. 123
10.1 Spindle Functions............................................................................................................................. 124
10.2 Constant Surface Speed Control ; G96,G97.................................................................................... 125
10.3 Spindle Clamp Speed Setting ; G92 ................................................................................................ 127
10.4 Spindle/C Axis Control..................................................................................................................... 129
10.5 Multiple-spindle Control.................................................................................................................... 132
10.5.1 Multiple-spindle Control I (spindle control command) ; S ○ = ............................................... 133
10.5.2 Multiple-spindle Control I (spindle selection command) ; G43.1,G44.1,G47.1 ....................... 134
10.5.3 Multiple-spindle Control II ........................................................................................................ 136
11 Tool Functions ...................................................................................................................................... 139
11.1 Tool Functions (T8-digit BCD) ......................................................................................................... 140
12 Tool Compensation Functions ............................................................................................................ 141
12.1 Tool Compensation..........................................................................................................................142
12.1.1 Tool Compensation Start ........................................................................................................ 143
12.1.2 Expanded Method at Starting Tool Compensation .................................................................144
12.2 Tool Length Compensation.............................................................................................................. 146
12.3 Tool Nose Wear Compensation ...................................................................................................... 148
12.4 Tool Nose R Compensation ; G40,G41,G42,G46........................................................................ 149
12.4.1 Tool Nose Point and Compensation Directions ...................................................................... 151
12.4.2 Tool Nose Radius Compensation Operations ......................................................................... 154
12.4.3 Other Operations during Tool Nose Radius Compensation .................................................... 172
12.4.4 G41/G42 Commands and I, J, K Designation .........................................................................180
12.4.5 Interrupts during Tool Nose Radius Compensation ................................................................ 185
12.4.6 General Precautions for Tool Nose Radius Compensation .................................................... 188
12.4.7 Interference Check ..................................................................................................................189
12.5 Compensation Data Input by Program ; G10 L2/L10/L11, G11....................................................... 195
12.6 Tool Life Management II ; G10 L3, G11....................................................................................
......198
12.6.1 Counting the Tool Life .............................................................................................................201
13 Program Support Functions ................................................................................................................ 205
13.1 Fixed Cycles for Turning Machining ................................................................................................206
13.1.1 Longitudinal Cutting Cycle ; G77 ............................................................................................ 207
13.1.2 Thread Cutting Cycle ; G78 ....................................................................................................210
13.1.3 Face Cutting Cycle ; G79........................................................................................................ 213
13.2 Compound Type Fixed Cycle for Turning Machining ...................................................................... 216
13.2.1 Longitudinal Rough Cutting Cycle ; G71.................................................................................217
13.2.2 Face Rough Cutting Cycle ; G72...........................................................................................231
13.2.3 Formed Material Rough Cutting Cycle ; G73.......................................................................... 233
13.2.4 Finishing Cycle ; G70.............................................................................................................. 237
13.2.5 Face Cut-Off Cycle ; G74........................................................................................................239
13.2.6 Longitudinal Cut-off Cycle ; G75.............................................................................................241
13.2.7 Compound Thread Cutting Cycle ; G76..................................................................................243
13.2.8 Precautions for Compound Type Fixed Cycle for Turning Machining; G70 to G76 ............... 247
13.3 Fixed Cycle for Drilling ....................................................................................................................249
13.3.1 Face Deep Hole Drilling Cycle 1 (Longitudinal deep hole drilling cycle 1) ; G83 (G87).......... 252
13.3.2 Face Tapping Cycle (Longitudinal tapping cycle) / Face Reverse Tapping Cycle
(Longitudinal reverse tapping cycle) ; G84 (G88) / G84.1 (G88.1) ....................................... 254
13.3.3 Face Boring Cycle (Longitudinal boring cycle) ; G85 (G89).................................................... 263
13.3.4 Deep Hole Drilling Cycle 2 ; G83.2......................................................................................... 265
13.3.5 Fixed Cycle for Drilling Cancel; G80 ....................................................................................... 267
13.3.6 Precautions When Using a Fixed Cycle for Drilling ................................................................ 268
13.3.7 Initial Point and R Point Level Return ; G98,G99.................................................................... 269
13.3.8 Setting of Workpiece Coordinates in Fixed Cycle Mode ......................................................... 270
13.3.9 Drilling Cycle High-Speed Retract .......................................................................................... 271
13.3.10 Acceleration/Deceleration Mode Change in Hole Drilling Cycle............................................ 272
13.4 Subprogram Control; M98, M99, M198 ........................................................................................... 274
13.4.1 Subprogram Call ; M98,M99................................................................................................... 274
13.4.2 Subprogram Call ; M198......................................................................................................... 280
13.5 Variable Commands ....................................................................................................................... 281
13.6 User Macro ...................................................................................................................................... 283
13.6.1 User Macro ............................................................................................................................. 283
13.6.2 Macro Call Instruction ............................................................................................................. 284
13.6.2.1 Simple Macro Calls ; G65............................................................................................... 284
13.6.2.2 Modal Call A (Movement Command Call) ; G66............................................................. 288
13.6.2.3 Modal Call B (for each block) ; G66.1............................................................................. 290
13.6.2.4 G Code Macro Call ......................................................................................................... 292
13.6.2.5 Miscellaneous Command Macro Call (for M, S, T, B Code Macro Call) ......................... 293
13.6.2.6 Detailed Description for Macro Call Instruction .............................................................. 294
13.6.3 ASCII Code Macro .................................................................................................................. 296
13.6.4 Variable.................................................................................................................................... 301
13.6.5 Types of Variables .................................................................................................................. 303
13.6.5.1 Common Variables ......................................................................................................... 303
13.6.5.2 Local Variables (#1 to #33) ............................................................................................. 304
13.6.5.3 Macro Interface Inputs/Outputs (#1000 to #1035, #1100 to #1135, #1200 to #1295,
#1300 to #1395) ............................................................................................................. 307
13.6.5.4 Tool Compensation ......................................................................................................... 314
13.6.5.5 Workpiece Coordinate System Compensation (#5201 - #532n) ..................................... 315
13.6.5.6 NC Alarm (#3000) ........................................................................................................... 316
13.6.5.7 Integrating Time (#3001, #3002) .................................................................................... 317
13.6.5.8 Suppression of Single Block Stop and Miscellaneous Function Finish Signal Waiting
(#3003) .......................................................................................................................... 317
13.6.5.9 Feed Hold, Feedrate Override, G09 Valid/Invalid (#3004) ............................................. 318
13.6.5.10 Message Display and Stop (#3006) .............................................................................. 318
13.6.5.11 G Command Modals (#4001-#4021, #4201-#4221) ..................................................... 319
13.6.5.12 Other Modals (#4101 - #4120, #4301 - #4320) ............................................................ 320
13.6.5.13 Position Information (#5001 - #5140 + n) ..................................................................... 321
13.6.5.14 External Workpiece Coordinate System Compensation (#2501, #2601) ..................... 323
13.6.5.15 Number of Workpiece Machining Times (#3901, #3902) ............................................. 323
13.6.5.16 Tool Life Management (#60000 - #63016) ................................................................... 324
13.6.5.17 Reading The Parameters (#100000-#100002, #100010) ............................................. 328
13.6.5.18 Reading PLC data (#100100-#100103,#100110) ......................................................... 331
13.6.5.19 Time Reading Variables (#3001, #3002, #3011, #3012) .............................................. 335
13.6.5.20 R Device Access Variables (#50000 - #50749, #51000 - #51749, #52000 - #52749) .. 337
13.6.6 Operation Commands ............................................................................................................. 343
13.6.7 Control Commands ................................................................................................................. 348
13.6.8 External Output Commands ; POPEN, PCLOS, DPRNT ....................................................... 351
13.6.9 Precautions ............................................................................................................................. 355
13.7 Corner Chamfering I/Corner Rounding I ....................................................................................
..... 357
13.7.1 Corner Chamfering I ; G01 X_ Z_ ,C_/I_/K_/C_ ..................................................................... 357
13.7.2 Corner Rounding I ; G01 X_ Z_ ,R_/R_.................................................................................. 359
13.7.3 Corner Chamfering Expansion/Corner Rounding Expansion ................................................. 361
13.7.4 Interrupt during Corner Chamfering/Interrupt during Corner Rounding .................................. 363
13.8 Corner Chamfering II / Corner Rounding II ..................................................................................... 364
13.8.1 Corner Chamfering II ; G01/G02/G03 X_ Z_ ,C_/I_/K_/C_.................................................... 364
13.8.2 Corner Rounding II ; G01/G02/G03 X_ Z_ ,R_/R_ ................................................................. 366
13.8.3 Corner Chamfering Expansion/Corner Rounding Expansion ................................................. 368
13.8.4 Interrupt during Corner Chamfering/Interrupt during Corner Rounding .................................. 368
13.9 Linear Angle Command ; G01 X_/Z_ A_/,A_................................................................................... 369
13.10 Geometric ......................................................................................................................................370
13.10.1 Geometric I ; G01 A_ ............................................................................................................ 370
13.10.2 Geometric IB ......................................................................................................................... 373
13.10.2.1 Geometric IB (Automatic calculation of two-arc contact) ; G02/G03 P_Q_ /R_............ 374
13.10.2.2 Geometric IB (Automatic calculation of linear - arc intersection) ;
G01 A_ , G02/G03 P_Q_H_ .........................................................................................378
13.10.2.3 Geometric IB (Automatic calculation of linear - arc intersection) ;
G01 A_ , G02/G03 R_H_.............................................................................................. 382
13.11 Parameter Input by Program ; G10 L70/L100, G11.......................................................................386
13.12 Macro Interruption ; M96,M97........................................................................................................388
13.13 Tool Change Position Return ; G30.1 - G30.5............................................................................... 396
14 Coordinate System Setting Functions................................................................................................. 399
14.1 Coordinate Words and Control Axes ...............................................................................................400
14.2 Basic Machine, Workpiece and Local Coordinate Systems.............................................................402
14.3 Machine Zero Point and 2nd Reference Position (Zero point) ........................................................ 403
14.4 Automatic Coordinate System Setting .............................................................................................404
14.5 Basic Machine Coordinate System Selection ; G53......................................................................... 406
14.6 Coordinate System Setting ; G92.....................................................................................................407
14.7 Reference Position (Zero point) Return ; G28,G29.......................................................................... 409
14.8 2nd, 3rd, and 4th Reference Position (Zero point) Return ; G30 ..................................................... 413
14.9 Reference Position Check ; G27...................................................................................................... 416
14.10 Workpiece Coordinate System Setting and Offset ; G54 to G59 (G54.1)...................................... 417
14.11 Local Coordinate System Setting ; G52........................................................................................ 423
14.12 Workpiece Coordinate System Preset ; G92.1 ............................................................................. 424
14.13 Coordinate System for Rotary Axis................................................................................................ 429
15 Protection Function ............................................................................................................................... 433
15.1 Chuck Barrier/Tailstock Barrier ; G22,G23....................................................................................... 434
15.2 Stored Stroke Limit ; G22,G23......................................................................................................... 438
16 Measurement Support Functions ........................................................................................................ 439
16.1 Automatic Tool Length Measurement ; G37 ....................................................................................440
16.2 Skip Function ; G31......................................................................................................................... 444
16.3 Multi-step Skip Function 1 ; G31.n, G04......................................................................................... 449
16.4 Multi-step Skip Function 2 ; G31 P.................................................................................................. 451
16.5 Programmable Current Limitation ; G10 L14 ; ................................................................................. 453
Appendix 1 Program Errors ....................................................................................................................... 455
Appendix 2 Order of G Function Command Priority ............................................................................... 489
Appendix 3 Supplementary Explanation for Incomplete Thread Area of Thread Control ................... 493
1
1
Control Axes
1 Control Axes
MITSUBISHI CNC
2
1.1 Coordinate Words and Control Axes
Function and purpose
In the case of a lathe, axis names (coordinate words) and directions are defined as follows.
The axis at right angles to the spindle
Axis name: X axis
The axis parallel to the spindle
Axis name: Z axis
Coordinate axes and polarities
Since coordinates based on the right hand rule are used with a lathe, in the above figure, the positive direction
of the Y axis which is at right angles to the X-Z plane is downward.
Note that a circular on the X-Z plane is expressed as clockwise or counterclockwise as seen from the forward
direction of the Y axis.
(Refer to the section on circular interpolation.)
(a) Spindle stock
(b) Tailstock
(c) Tool
(d) Turret
+X
+Y
+Z
(a)
(b)
(c)
(d)
E70 Series Programming Manual (Lathe System)
1.1 Coordinate Words and Control Axes
3
Relationship between coordinates
Reference position
Basic machine coordinate
Workpiece coordinate zero points
Local coordinate zero point
G54
G52
G58
G55
G59
G30
G28
+X
+Y
+Z
/