fanuc 0i-F Plus Operator’s Manual

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For Machining Center System

OPERATOR'S MANUAL

B-64694EN-2/01

• The appearance and specifications of this product are subject to change without notice.

manual are controlled based on Japan's “Foreign Exchange and

The export from Japan may be subject to an export license by the

export to another country may be subject to the license of the government of

Should you wish to export or re-export these products, please contact FANUC for advice.

to safety.

are, however, a very large number of operations that must not or cannot be

being possible are "not possible".

This manual contains the program names or device names of other companies, some of which are registered trademarks of respective owners. However, these names are not followed by  or  in the main body.

• No part of this manual may be reproduced in any form.

The products in this Foreign Trade Law". government of Japan. Further, rethe country from where the product is re-exported. Furthermore, the product may also be controlled by re-export regulations of the United States government.

The products in this manual are manufactured under strict quality control. However, when a serious accident or loss is predicted due to a failure of the product, pay careful attention

In this manual, we endeavor to include all pertinent matters. There performed, and if the manual contained them all, it would be enormous in volume. It is, therefore, requested to assume that any operations that are not explicitly described as

B-64694EN-2/01 SAFETY PRECAUTIONS

WARNING

occur if he or she fails to observe the approved procedure.

CAUTION

approved procedure.

NOTE

and CAUTION is to be indicated.

SAFETY PRECAUTIONS

This section describes the safety precautions related to the use of CNC units. It is essential that these precautions be observed by users to ensure the safe operation of machines equipped with a CNC unit (all descriptions in this section assume this configuration). Note that some precautions are related only to specific functions, and thus may not be app licable to certain CNC units. Users must also observe the safety precaution s related to the machine, as described i n the relevan t manual supplied by the machine tool builder. Before attempting to operate the machine or create a program to control the operation of the machine, the operator must become fully familiar with the contents of this manual and relevant manual supplied by the machine tool builder.

DEFINITION OF WARNING, CAUTION, AND NOTE

This manual includes safety precautions for protecting the user and preventing damage to the machine. Precautions are classified into WARNING and CAUTION according to their bearing on safety. Also, supplementary information is described as a NOTE. Read the WARNING, CAUTION, and NOTE thoroughly before attempting to use the machine.

Used if a danger resulting in the death or serious injury of the user is expected to

Used if a danger resulting in the minor or moderate injury of the user or

equipment damage is expected to occur if he or she fails to observe the

Used if a supplementary explanation not related to any of DANGER, WARNING,

• Read this manual carefully, and store it in a safe place.

s-1

SAFETY PRECAUTIONS B-64694EN-2/01

WARNING

1 Never attempt to machine a workpiece without first checking the operation of the

machine itself, or injury to the user.

5 The parameters for the CNC and PMC are factory-set. Usually, there is not need

or injury to the user.

GENERAL WARNINGS AND CAUTIONS

machine. Before starting a production run, ensure that the machine is operating correctly by performing a trial run using, for example, the single block, feedrate override, or machine lock function or by operating the machine with neither a tool nor workpiece mounted. Failure to confirm the correct operation of the m achine may result in the machine behaving unexpectedly, possibly causing damage to

the workpiece and/or machine itself, or injury to the user. 2 Before operating the machine, thoroughly check the entered data. Operating the machine with incorrectly specified data may result in the machine

behaving unexpectedly, possibly causing damage to the workpiece and/or

machine itself, or injury to the user. 3 Ensure that the specified feedrate is appropriate for the intended operation.

Generally, for each machine, there is a maximum allowable feedrate. The appropriate feedrate varies with the intended operation. Refer to the manual

provided with the machine to determine the maximum allowable feedrate. If a machine is run at other than the correct speed, it may behave unexpectedly,

possibly causing damage to the workpiece and/or machine itself, or injury to the

user. 4 When using a tool compensation function, thoroughly check the direction and

amount of compensation.

Operating the machine with incorrectly specified data may result in the machine

behaving unexpectedly, possibly causing damage to the workpiece and/or

to change them. When, however, there is not alternative other than to change a

parameter, ensure that you fully understand the function of the param et er before

making any change. Failure to set a parameter correctly may result in the machine behaving

unexpectedly, possibly causing damage to the workpiece and/or machine itself,

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B-64694EN-2/01 SAFETY PRECAUTIONS

CAUTION

phenomenon is a common attribute of LCDs and is not a defect.

NOTE

non-volatile memory at registration, modification, or deletion of program s.

1 Immediately after switching on the power, do not touch any of the keys on the

MDI unit until the position display or alarm screen appears on the CNC unit. Some of the keys on the MDI unit are dedicated to maintenance or other special

operations. Pressing any of these keys may place the CNC unit in other than its

normal state. Starting the machine in this state may cause it to behave

unexpectedly. 2 The OPERATOR’S MANUAL and programming manual supplied with a CNC

unit provide an overall description of the machine's functions. Note that the

functions will vary from one machine model to another. Therefore, some

functions described in the manuals may not actually be available for a particular

model. Check the specification of the machine if in doubt. 3 Some functions may have been implemented at the request of the machine-tool

builder. When using such functions, refer to the manual supplied by the

machine-tool builder for details of their use and any related cautions. 4 The liquid-crystal display is manufactured with very precise fabrication

technology. Some pixels may not be turned on or may remain on. This

Programs, parameters, and macro variables are stored in non-volatile mem or y in

the CNC unit. Usually, they are retained even if the power is turned off. Such data may be deleted inadvertently, however, or it may prove necessary to

delete all data from non-volatile memory as part of error recovery. To guard against the occurrence of the above, and assure quick restoration of

deleted data, backup all vital data, and keep the backup copy in a safe place.

The number of times to write machining programs to the non-volatile memory is

limited.

You must use "High-speed program management" when registration and the

deletion of the machining programs are frequently repeated in such case that the

machining programs are automatically downloaded from a personal computer at

each machining.

In "High-speed program management", the program is not saved to t he

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SAFETY PRECAUTIONS B-64694EN-2/01

WARNING

Coordinate system setting

workpiece, or cause injury to the user.

Inch/metric conversion

to the user.

Constant surface speed control

machine itself, the workpiece, or cause injury to the user.

Stroke check

workpiece, or causing injury to the user.

WARNINGS AND CAUTIONS RELATED TO PROGRAMM ING

This section covers the major safety precautions r elated to programming. Before attempting to perform programming, read the supplied OPERATOR’S MANUAL carefully such that you are fully f amiliar with their contents.

If a coordinate system is established incorrectly, the machine may behave

unexpectedly as a result of the program issuing an otherwise valid move

command. Such an unexpected operation may damage the tool, the machine

itself, the workpiece, or cause injury to the user. 2

Positioning by nonlinear interpolation

When performing positioning by nonlinear interpolation (positioning by nonlinear

movement between the start and end points), the tool path must be caref ully

confirmed before performing programming. Positioning involves rapid traverse. If

the tool collides with the workpiece, it may damage the tool, the machine itself,

the workpiece, or cause injury to the user. 3

Function involving a rotation axis

When programming normal-direction (perpendicular) control, pay careful

attention to the speed of the rotation axis. Incorrect programming m ay result in

the rotation axis speed becoming excessively high, such that centrifugal force

causes the chuck to lose its grip on the workpiece if the latter is not mounted

securely. Such mishap is likely to damage the tool, the machine itself, the

Switching between inch and metric inputs does not convert the measurement

units of data such as the workpiece origin offset, parameter, and current

position. Before starting the machine, therefore, determine which measur ement

units are being used. Attempting to perform an operation with invalid data

specified may damage the tool, the machine itself, the workpiece, or cause injury

When an axis subject to constant surface speed control approaches the origin of

the workpiece coordinate system, the spindle speed may become excessively

high. Therefore, it is necessary to specify a maximum allowable speed.

Specifying the maximum allowable speed incorrectly may damage the tool, the

After switching on the power, perform a manual reference position return as

required. Stroke check is not possible before manual reference position return is

performed. Note that when stroke check is disabled, an alarm is not issued even

if a stroke limit is exceeded, possibly damaging the tool, the machine itself, the

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B-64694EN-2/01 SAFETY PRECAUTIONS

WARNING

Tool post interference check

automatic operation and specify the tool number of the tool to be used.

Same address command in same block

program command”）

CAUTION

Absolute/incremental mode

be executed without performing a skip.

Programmable mirror image

mirror image is enabled.

Compensation function

compensation function mode.

A tool post interference check is performed based on the tool data specified

during automatic operation. If the tool specification does not match the tool

actually being used, the interference check cannot be made correctly, possibly

damaging the tool or the machine itself, or causing injury to the user. After

switching on the power, or after selecting a tool post manually, always start

The G code or M code including the same address cannot be commanded on

the same block. If you use the same address, it may result in the mac hine

behaving unexpectedly, possibly causing damage to the workpiece and/or

machine itself, or injury to the user. Command on separate block.（About

address P, refer to the appendix “List of functions include address P in the

If a program created with absolute values is run in incremental mode, or vice

versa, the machine may behave unexpectedly. 2

Plane selection

If an incorrect plane is specified for circular interpolation, helical interpolation, or

a canned cycle, the machine may behave unexpectedly. Refer to the

descriptions of the respective functions for details. 3

Torque limit skip

Before attempting a torque limit skip, apply the torque limit. If a tor que limit s kip

is specified without the torque limit actually being applied, a move command will

Note that programmed operations vary considerably when a programmable

If a command based on the machine coordinate system or a reference position

return command is issued in compensation function mode, compensation is

temporarily canceled, resulting in the unexpected behavior of the machine. Before issuing any of the above commands, therefore, always cancel

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SAFETY PRECAUTIONS B-64694EN-2/01

WARNING

Manual operation

injury to the user.

Workpiece coordinate system shift

workpiece, or causing injury to the operator.

WARNINGS AND CAUTIONS RELATED TO HANDLING

This section presents safety precautions related to the handling of machine tools. Before attempting to operate your machine, read the supplied OPERATOR’S MANUAL carefully, such that you are fully familiar with their contents.

When operating the machine manually, determine the current position of the tool

2 After switching on the power, perform manual reference position return as

3 In manual handle feed, rotating the handle with a large scale factor, such as 100,

4 If override is disabled (according to the specification in a macro variable) during

5 Basically, never attempt an origin/preset operation when the machine is

and workpiece, and ensure that the movement axis, direction, and feedrate have

been specified correctly. Incorrect operation of the machine may damage t he

tool, the machine itself, the workpiece, or cause injury to the operator.

Manual reference position return

required.

If the machine is operated without first performing manual reference posit ion

return, it may behave unexpectedly. Stroke check is not possible before manual

reference position return is performed.

An unexpected operation of the machine may damage the tool, the machine

itself, the workpiece, or cause injury to the user.

Manual handle feed

applied causes the tool and table to move rapidly. Careless handling may

damage the tool and/or machine, or cause injury to the user.

Disabled override

threading, rigid tapping, or other tapping, the speed cannot be predicted,

possibly damaging the tool, the machine itself, the workpiece, or causing injury

to the operator.

Origin/preset operation

operating under the control of a program. Otherwise, the machine may behave

unexpectedly, possibly damaging the tool, the machine itself, the tool, or causing

Manual intervention, machine lock, or mirror imaging may shift the workpiece

coordinate system. Before attempting to operate the machine under the c ont rol

of a program, confirm the coordinate system carefully.

If the machine is operated under the control of a program without making

allowances for any shift in the workpiece coordinate system, the machine may

behave unexpectedly, possibly damaging the tool, the machine itself, the

s-6

B-64694EN-2/01 SAFETY PRECAUTIONS

WARNING

Software operator's panel and menu switches

use the emergency stop button instead of the RESET key to ensure security.

CAUTION

Manual intervention

the axis movement stops.

Using the software operator's panel and menu switches, in combination with the

Note, however, that if the MDI unit keys are operated inadvertently, t he m ac hine

If manual intervention is performed during programmed operation of the

2 The feed hold, feedrate override, and single block functions can be disabled

3 Usually, a dry run is used to confirm the operation of the machine. During a dry

4 If the machine is stopped, after which the machining program is edited

5 When a PS alarm is occurred during executing a blolck, the axis movement of

MDI unit, it is possible to specify operations not supported by the machine

operator's panel, such as mode change, override value change, and jog feed

commands.

may behave unexpectedly, possibly damaging the tool, the machine itself, the

workpiece, or causing injury to the user.

RESET key

Pressing the RESET key stops the currently running program. As a result, the

servo axes are stopped. However, the RESET key may fail to function for

reasons such as an MDI unit problem. So, when the motors must be stopped,

machine, the tool path may vary when the machine is restarted. Before

restarting the machine after manual intervention, therefore, c onf ir m the settings

of the manual absolute switches, parameters, and absolute/incremental

command mode.

Feed hold, override, and single block

using custom macro system variable #3004. Be careful when operating the

machine in this case.

Dry run

run, the machine operates at dry run speed, which differs from the

corresponding programmed feedrate. Note that the dry run speed may

sometimes be higher than the programmed feed rate.

Program editing

(modification, insertion, or deletion), the machine may behave unexpectedly if

machining is resumed under the control of that program. Basically, do not

modify, insert, or delete commands from a machining program while it is in use.

PS alarm

the block is continued to the end of block. After finishing the executing the block,

s-7

SAFETY PRECAUTIONS B-64694EN-2/01

WARNING

electric shock hazard.

NOTE

the battery replacement procedure.

WARNING

electric shock hazard.

NOTE

of the battery replacement procedure.

WARNINGS RELATED TO DAILY MAINTENANCE

Memory backup battery replacement

When replacing the memory backup batteries, keep the power to the machine

(CNC) turned on, and apply an emergency stop to the machine. Because this

work is performed with the power on and the cabinet open, only those personnel

who have received approved safety and maintenance training may perform this

work. When replacing the batteries, be careful not to touch the high-voltage circuits

(marked and fitted with an insulating cover). Touching the uncovered high-voltage circuits presents an extremely dangerous

The CNC uses batteries to preserve the contents of its memory, because it m ust

retain data such as programs, offsets, and parameters even while external

power is not applied. If the battery voltage drops, a low battery voltage alarm is displayed on the

machine operator's panel or screen.

When a low battery voltage alarm is displayed, replace the batteries within a

week. Otherwise, the contents of the CNC's memory will be lost. Refer to the Section “Method of replacing battery” in the OPERAT OR’S

MANUAL (Common to Lathe System/Machining Center System) for details of

Absolute pulse coder battery replacement

When replacing the memory backup batteries, keep the power to the machine

(CNC) turned on, and apply an emergency stop to the machine. Because this

work is performed with the power on and the cabinet open, only those personnel

who have received approved safety and maintenance training may perform this

work. When replacing the batteries, be careful not to touch the high-voltage circuits

(marked and fitted with an insulating cover). Touching the uncovered high-voltage circuits presents an extremely dangerous

The absolute pulse coder uses batteries to preserve its absolute position. If the battery voltage drops, a low battery voltage alarm is displayed on the

machine operator's panel or screen. When a low battery voltage alarm is displayed, replace the batteries within a

week. Otherwise, the absolute position data held by the pulse coder will be lost. Refer to the FANUC SERVO MOTOR

series Maintenance Manual for details

s-8

B-64694EN-2/01 SAFETY PRECAUTIONS

WARNING

electric shock hazard.

3 Fuse replacement

Before replacing a blown fuse, however, it is necessary to locate and remove the

cause of the blown fuse.

For this reason, only those personnel who have received approved safety and

maintenance training may perform this work. When replacing a fuse with the cabinet open, be careful not to touch the

high-voltage circuits (marked and fitted with an insulating cover). Touching an uncovered high-voltage circuit presents an extremely dangerous

s-9

B-64694EN-2/01 TABLE OF CONTENTS

SAFETY PRECAUTIONS ............................................................................ s-1

I. GENERAL

1 GENERAL ............................................................................................... 3

1.1 NOTES ON READING THIS MANUAL .......................................................... 6

1.2 NOTES ON VARIOUS KINDS OF DATA ...................................................... 6

II. PROGRAMMING

1 GENERAL ............................................................................................... 9

1.1 TOOL FIGURE AND TOOL MOTION BY PROGRAM ................................... 9

2 PREPARATORY FUNCTION (G FUNCTION) ...................................... 10

3 INTERPOLATION FUNCTION .............................................................. 14

3.1 THREADING (G33) ..................................................................................... 14

4 COORDINATE VALUE AND DIMENSION ........................................... 16

4.1 POLAR COORDINATE COMMAND (G15, G16) ......................................... 16

5 FUNCTIONS TO SIMPLIFY PROGRAMMING ..................................... 21

5.1 CANNED CYCLE FOR DRILLING ............................................................... 21

5.1.1 High-Speed Peck Drilling Cycle (G73) .................................................................. 26

5.1.2 Left-Handed Tapping Cycle (G74) ........................................................................ 28

5.1.3 Fine Boring Cycle (G76) ........................................................................................ 30

5.1.4 Drilling Cycle, Spot Drilling (G81) ....................................................................... 32

5.1.5 Drilling Cycle Counter Boring Cycle (G82) .......................................................... 33

5.1.6 Peck Drilling Cycle (G83) ...................................................................................... 35

5.1.7 Small-Hole Peck Drilling Cycle (G83) .................................................................. 37

5.1.8 Tapping Cycle (G84) .............................................................................................. 41

5.1.9 Boring Cycle (G85) ................................................................................................ 43

5.1.10 Boring Cycle (G86) ................................................................................................ 44

5.1.11 Back Boring Cycle (G87) ....................................................................................... 46

5.1.12 Boring Cycle (G88) ................................................................................................ 48

5.1.13 Boring Cycle (G89) ................................................................................................ 50

5.1.14 Canned Cycle Cancel for Drilling (G80) ................................................................ 51

5.1.15 Example for Using Canned Cycles for Drilling ..................................................... 52

5.1.16 Reducing of Waiting Time of Spindle Speed Arrival in the Canned Cycle for

Drilling ................................................................................................................... 54

5.2 CANNED CYCLE OVERLAP FOR DRILLING ............................................. 55

5.3 RIGID TAPPING .......................................................................................... 60

5.3.1 Rigid Tapping (G84) .............................................................................................. 61

5.3.2 Left-Handed Rigid Tapping Cycle (G74) ............................................................... 65

5.3.3 Peck Rigid Tapping Cycle (G84 or G74) ............................................................... 69

5.3.4 Canned Cycle Cancel (G80) ................................................................................... 73

5.3.5 Override during Rigid Tapping .............................................................................. 73

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TABLE OF CONTENTS B-64694EN-2/01

5.3.5.1 Extraction override ............................................................................................ 73

5.3.5.2 Override signal .................................................................................................. 75

5.4 OPTIONAL CHAMFERING AND CORNER R ............................................. 76

5.5 INDEX TABLE INDEXING FUNCTION ........................................................ 79

5.6 IN-FEED CONTROL (FOR GRINDING MACHINE) ..................................... 81

5.7 CANNED GRINDING CYCLE (FOR GRINDING MACHINE) ....................... 84

5.7.1 Plunge Grinding Cycle (G75) ................................................................................. 86

5.7.2 Direct Constant-Dimension Plunge Grinding Cycle (G77) .................................... 89

5.7.3 Continuous-feed Surface Grinding Cycle (G78) .................................................... 92

5.7.4 Intermittent-feed Surface Grinding Cycle (G79) .................................................... 95

6 COMPENSATION FUNCTION .............................................................. 97

6.1 TOOL LENGTH COMPENSATION SHIFT TYPES ..................................... 97

6.2 AUTOMATIC TOOL LENGTH MEASUREMENT (G37) ............................ 104

6.3 TOOL OFFSET (G45 TO G48) .................................................................. 107

6.4 OVERVIEW OF CUTTER COMPENSATION (G40-G42) .......................... 112

6.5 OVERVIEW OF TOOL NOSE RADIUS COMPENSATION (G40-G42) ..... 117

6.5.1 Imaginary Tool Nose ............................................................................................ 117

6.5.2 Direction of Imaginary Tool Nose ....................................................................... 119

6.5.3 Offset Number and Offset Value .......................................................................... 120

6.5.4 Workpiece Position and Move Command ............................................................ 121

6.5.5 Notes on Tool Nose Radius Compensation .......................................................... 127

6.6 DETAILS OF CUTTER OR TOOL NOSE RADIUS COMPENSATION ...... 128

6.6.1 Overview .............................................................................................................. 128

6.6.2 Tool Movement in Start-up .................................................................................. 132

6.6.3 Tool Movement in Offset Mode ........................................................................... 137

6.6.4 Tool Movement in Offset Mode Cancel ............................................................... 155

6.6.5 Prevention of Overcutting Due to Tool Radius / Tool Nose Radius

Compensation ....................................................................................................... 162

6.6.6 Interference Check ............................................................................................... 165

6.6.6.1 Operation to be performed if an interference is judged to occur ..................... 168

6.6.6.2 Interference check alarm function ................................................................... 169

6.6.6.3 Interference check avoidance function ............................................................ 171

6.6.7 Tool Radius / Tool Nose Radius Compensation for Input from MDI .................. 176

6.7 VECTOR RETENTION (G38) .................................................................... 178

6.8 CORNER CIRCULAR INTERPOLATION (G39) ........................................ 179

6.9 TOOL COMPENSATION VALUES, NUMBER OF COMPENSATION

VALUES, AND ENTERING VALUES FROM THE PROGRAM (G10) ....... 181

6.10 COORDINATE SYSTEM ROTATION (G68, G69) ..................................... 183

7 MEMORY OPERATION USING Series 15 PROGRAM FORMAT ..... 190

8 HIGH-SPEED CUTTING FUNCTIONS ................................................ 192

8.1 SELECT SETTING PATTERN OF FINE SURFACE SETTING BY

PROGRAM COMMAND ............................................................................ 192

III. OPERATION

1 SETTING AND DISPLAYING DATA ................................................... 195

1.1 SCREENS DISPLAYED BY FUNCTION KEY

1.1.1 Setting and Displaying the Tool Compensation Value ........................................ 195

c-2

................................... 195

B-64694EN-2/01 TABLE OF CONTENTS

1.1.2 Tool Length Measurement ................................................................................... 199

1.1.3 Fine surface setting ............................................................................................... 202

APPENDIX

A LIST OF FUNCTIONS INCLUDE ADDRESS P IN THE PROGRAM

COMMAND .......................................................................................... 207

A.1 LIST OF FUNCTIONS INCLUDE ADDRESS P IN THE ARGUMENT OF

G CODE .................................................................................................... 207

A.2 LIST OF FUNCTIONS INCLUDE ADDRESS P IN THE ARGUMENT OF

M AND S CODE ........................................................................................ 210

c-3

I. GENERAL

B-64694EN-2/01 GENERAL 1. GENERAL

NOTE

machine tool builder.

Model name

Abbreviation

FANUC Series 0i-MF Plus

0i-MF Plus

Series 0i-F Plus

Series 0i

NOTE

1 For an explanatory purpose, the following descriptions may be used according to

- 0i-MF Plus : Machining center system (M series)

1 GENERAL

This manual consists of the following parts:

About this manual

I. GENERAL Describes chapter organization, applicable models, related manuals, and notes for reading this

manual.

II. PROGRAMMING Describes each function: Format used to progr am functions in the NC language, characteristics, and

restrictions.

III. OPERATION Describes the manual operation and automatic operation of a machine, procedures for inputting and

outputting data, and procedures for editing a program.

APPENDIX Describes supplementary materials.

1 This manual describes the functions that can operate in the machining center

system path control type. For other functions not specific to the lathe system, refer to the Operator's Manual (Common to Lathe System/M ac hining Center System) (B-64694EN).

2 Some functions described in this manual may not be applied to some products.

For detail, refer to the DESCRIPTIONS manual (B-64692EN).

3 This manual does not detail the parameters not mentioned in the text. For

details of those parameters, refer to the Parameter Manual ( B-64700EN).

Parameters are used to set functions and operating conditions of a CNC

machine tool, and frequently-used values in advance. Usually, the machine tool builder factory-sets parameters so that the user can use the machine t ool easily.

4 This manual describes not only basic functions but also optional functions. Look

up the options incorporated into your system in the manual written by the

Applicable models

This manual describes the following models that are 'Nano CNC'. 'Nano CNC system' which realizes high precision machining can be constructed by combining these models and high speed, high precision servo controls. In the text, the abbreviations indicated below may be used.

the CNC model :

- 3 -

1. GENERAL GENERAL B-64694EN-2/01

NOTE

2 Some functions described in this manual may not be applied to some products. For details, refer to the Descriptions (B-64692EN).

Manual name

Specification number

DESCRIPTIONS

B-64692EN

CONNECTION MANUAL (HARDWARE)

B-64693EN

CONNECTION MANUAL (FUNCTION)

B-64693EN-1

OPERATOR’S MANUAL (Common to Lathe System/Machining Center System)

B-64694EN

OPERATOR’S MANUAL (For Lathe System)

B-64694EN-1

OPERATOR’S MANUAL (For Machining Center System)

B-64694EN-2

MAINTENANCE MANUAL

B-64695EN

PARAMETER MANUAL

B-64700EN

Programming

Macro Executor PROGRAMMING MANUAL

B-63943EN-2

Macro Compiler PROGRAMMING MANUAL

B-66263EN

C Language Executor PROGRAMMING MANUAL

B-63943EN-3

PMC

PMC PROGRAMMING MANUAL

B-64513EN

Network

PROFIBUS-DP Board CONNECTION MANUAL

B-63993EN

Fast Ethernet / Fast Data Server OPERATOR’S MANUAL

B-64014EN

DeviceNet Board CONNECTION MANUAL

B-64043EN

FL-net Board CONNECTION MANUAL

B-64163EN

CC-Link Board CONNECTION MANUAL

B-64463EN

Operation guidance function

OPERATOR’S MANUAL

MANUAL GUIDE i (For Machining Center System) OPERATOR’S MANUAL

B-63874EN-2

MANUAL GUIDE i (Set-up Guidance Functions) OPERATOR’S MANUAL

B-63874EN-1

MANUAL GUIDE 0i OPERATOR’S MANUAL

B-64434EN

Dual Check Safety

Dual Check Safety CONNECTION MANUAL

B-64483EN-2

Special symbols

This manual uses the following symbols:

- IP

Indicates a combination of axes such as X_ Y_ Z_ In the underlined position following each address, a numeric value such as a coordinate value is

placed (used in PROGRAMMING.).

- ;

Indicates the end of a block. It actually corresponds to the ISO code LF or EI A code CR.

Related manuals of Series 0i-F Plus

The following table lists the manuals related to Series 0i-F Plus. This manual is indicated by an asterisk (*).

Table 1 (a) Related manuals

MANUAL GUIDE i (Common to Lathe System/Machining Center System)

B-63874EN

- 4 -

B-64694EN-2/01 GENERAL 1. GENERAL

Manual name

Specification number

DESCRIPTIONS

FANUC AC SPINDLE MOTOR αi-B / βi-B series DESCRIPTIONS

DESCRIPTIONS

FANUC SERVO AMPLIFIER αi series DESCRIPTIONS

DESCRIPTIONS

FANUC AC SERVO MOTOR αi series

MAINTENANCE MANUAL

FANUC AC SERVO MOTOR βi series

MAINTENANCE MANUAL

FANUC AC SERVO MOTOR αi series

PARAMETER MANUAL

FANUC AC SPINDLE MOTOR αi/βi series,

PARAMETER MANUAL

Related manuals of SERVO MOTOR αi/βi series

The following table lists the manuals related to SERVO MOTOR αi/βi series

Table 1 (b) Related manuals

FANUC AC SERVO MOTOR αi-B series FANUC AC SERVO MOTOR αi series

FANUC AC SERVO MOTOR βi-B series FANUC AC SERVO MOTOR βi series

B-65262EN

B-65452EN

B-65302EN

B-65282EN

FANUC SERVO AMPLIFIER βi series

FANUC AC SPINDLE MOTOR αi series FANUC SERVO AMPLIFIER αi series

FANUC AC SPINDLE MOTOR βi series FANUC SERVO AMPLIFIER βi series

FANUC AC SERVO MOTOR βi series FANUC LINEAR MOTOR LiS series FANUC SYNCHRONOUS BUILT-IN SERVO MOTOR DiS series

BUILT-IN SPINDLE MOTOR Bi series

B-65322EN

B-65285EN

B-65325EN

B-65270EN

B-65280EN

The above servo motors and the corresponding spindles can be connected to the CNC covered in this manual. This manual mainly assumes that the FANUC SERVO MOTOR αi series of servo motor is used. For servo motor and spindle information, refer to the manuals for the servo motor and spindle that are actually connected.

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1. GENERAL GENERAL B-64694EN-2/01

CAUTION

attempted.

CAUTION

non-volatile memory at registration, modification, or deletion of program s.

1.1 NOTES ON READING THIS MANUAL

1 The function of a CNC machine tool system depends not only on the CNC, but on

the combination of the machine tool, its magnetic cabinet, the servo system, the CNC, the operator's panels, etc. It is too difficult to describe the function, programming, and operation relating to all combinations. This manual generally describes these from the stand-point of the CNC. So, for details on a particular CNC machine tool, refer to the manual issued by the machine tool builder, which should take precedence over this manual.

2 In the header field of each page of this manual, a chapter title is indicated so that

the reader can reference necessary information easily. By finding a desired title first, the reader can reference necessary parts only.

3 This manual describes as many reasonable variations in equipment usage as

possible. It cannot address every combination of features, options and commands that should not be attempted.

If a particular combination of operations is not described, it should not be

1.2 NOTES ON VARIOUS KINDS OF DATA

Machining programs, parameters, offset data, etc. ar e s t ored in the CNC unit

internal non-volatile memory. In general, these contents are not lost by the switching ON/OFF of the power. However, it is possible that a state can occur where precious data stored in the non-volatile memory has to be deleted, because of deletions from a maloperation, or by a failure restoration. In order to restore rapidly when this kind of mishap occurs, it is recommended that you create a copy of the various kinds of data beforehand. The number of times to write machining programs to the non-volatile memory is limited. You must use "High-speed program management" when registration and the deletion of the machining programs are frequently repeated in such case that the machining programs are automatically downloaded from a personal computer at each machining. In "High-speed program management", the program is not saved to t he

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II. PROGRAMMING

B-64694EN-2/01 PROGRAMMING 1. GENERAL

Workpiece

Cutter path using cutter compensation

Machined part figure

Tool

1 GENERAL

1.1 TOOL FIGURE AND TOOL MOTION BY PROGRAM

Explanation

- Machining using the end of cutter - Tool length compensation f unction

Usually, several tools are used for machining o ne workpiece. The tools have different tool length. It is very troublesome to change the program in accordance with the tools. Therefore, the length of each tool used should be measured in advance. By setting the differ ence between the length of the standard tool and the length of each tool in the CNC (See Chapter, “Setting and Displaying Data” in OPERATOR’S MANUAL (Common to Lathe System / Machining Center System)(B-64694EN)), machining can be performed without altering the program even when the tool is changed. This function is called tool length compensation (See Section, “Tool Length Compensation” in OPERATOR’S MANUAL (Common to Lathe System / Machinin g Center System) (B-64694EN)).

- Machining using the side of cutter - Cutter compensation function

Because a cutter has a radius, the center of the cutter path goes around the workpiece with the cutter radius deviated. If radius of cutters are stored in the CNC (See Chapter, “Setting and Displaying Data” in OPERATOR’S MANUAL (Common to Lathe System / Machining Cent er Sy st em) (B-64694EN)), the tool can be moved by cutter radius apart from the machining part figure. This function is called cutter compensation (See Chapter, “Compensation Function”).

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2. PREPARATORY FUNCTION (G FUNCTION)

PROGRAMMING B-64694EN-2/01

2 PREPARATORY FUNCTION

(G FUNCTION)

A number following address G determines the meaning of the command for the concerned block. G codes are divided into the following two types.

Type Meaning

One-shot G code The G code is effective only in the block in which it is specified. Modal G code The G code is effective until another G code of the same group is specified.

(Example) G01 and G00 are modal G codes in group 01. G01 X_ ;

Z_ ; G01 is effective in this range. X_ ;

G00 Z_ ; G00 is effective in this range.

X_ ;

G01 X_ ;

Explanation

1. When the clear state (bit 6 (CLR) of parameter No. 3402) is set at power-up or reset, the modal G

codes are placed in the states described below. (1) The modal G codes are placed in the states marked with (2) G20 and G21 remain unchanged when the clear state is set at power-up or reset. (3) Which status G22 or G23 at power on is set by bit 7 (G23) of parameter No. 3402. However,

G22 and G23 remain unchanged when the clear state is set at reset. (4) The user can select G00 or G01 by setting bit 0 (G01) of parameter No. 3402. (5) The user can select G90 or G91 by setting bit 3 (G91) of parameter No. 3402. When G code system B or C is used in the lathe system, setting bit 3 (G91) of parameter No.

3402 determines which code, either G90 or G91, is effective. (6) In the machining center system, the user can select G17, G18, or G19 by setting bits 1 (G18)

and 2 (G19) of parameter No. 3402.

2. G codes of group 00 other than G10 and G11 are one-shot G codes.

3. When a G code not listed in the G code list is specified, or a G code that has no corresponding option is specified, alarm PS0010, “IMPROPER G-CODE” occurs.

4. Multiple G codes can be specified in the same block if each G code belongs to a different group. If multiple G codes that belong to the same group are specified in the same block, only the last G code specified is valid.

5. If a G code belonging to group 01 is specified in a canned cycle for drilling, the canned cycle for drilling is cancelled. This means that the same state set by specifying G80 is set. Note that the G codes in group 01 are not affected by a G code specifying a canned cycle for drilling.

6. G codes are indicated by group.

7. The group of G60 is switched according to the setting of the bit 0 (MDL) of parameter No. 5431. (When the MDL bit is set to 0, the 00 group is selected. When the MDL bit is set to 1, the 01 group is selected.)

as indicated in Table 2 .

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2. PREPARATORY FUNCTION

B-64694EN-2/01 PROGRAMMING

Table 2 G code list

G code Group Function

G00 G01 Linear interpolation (cutting feed) G02 Circular interpolation CW or helical interpolation CW G03 Circular interpolation CCW or helical interpolation CCW G04 G04.1 G code preventing buffering G05 AI contour control (high-precision contour control compatible command) G05.1 AI contour control G05.4 HRV3 on/off G07.1 G08 AI contour control (advanced preview control compatible command) G09 Exact stop G10 Programmable data input G10.6 Tool retract and recover G11 Programmable data input mode cancel G15 G16 Polar coordinates command G17 G18 ZpXp plane selection G19 YpZp plane selection G20 (G70) G21 (G71) Input in mm G22 G23 Stored stroke check function off G25 G26 Spindle speed fluctuation detection on G27 G28 Automatic return to reference position G28.2 In-position check disable reference position return G29 Movement from reference position G30 2nd, 3rd and 4th reference position return G30.2 In-position check disable 2nd, 3rd, or 4th reference position return G31 Skip function G31.8 EGB-axis skip G33 01 Threading G37 G38 Tool radius/tool nose radius compensation : preserve vector G39 Tool radius/tool nose radius compensation : corner circular interpolation G40 G41 Tool radius/tool nose radius compensation : left G42 Tool radius/tool nose radius compensation : right G40.1 G41.1 Normal direction control on : left G42.1 Normal direction control on : right G43 G44 Tool length compensation G43.7 Tool offset G45 G46 Tool offset : decrease G47 Tool offset : double increase G48 Tool offset : double decrease G49 (G49.1) 08 Tool length compensation cancel

Positioning (rapid traverse)

Dwell

Cylindrical interpolation

Polar coordinates command cancel

XpYp plane selection Xp: X axis or its parallel axis

Input in inch

Stored stroke check function on

Spindle speed fluctuation detection off

Reference position return check

Automatic tool length measurement

Tool radius/tool nose radius compensation : cancel

Normal direction control cancel mode

Tool length compensation +

Tool offset : increase

(G FUNCTION)

Yp: Y axis or its parallel axis Zp: Z axis or its parallel axis

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2. PREPARATORY FUNCTION (G FUNCTION)

PROGRAMMING B-64694EN-2/01

Table 2 G code list

G code Group Function

G50 G51 Scaling G50.1 G51.1 Programmable mirror image G50.4 G50.5 Cancel composite control G50.6 Cancel superimposed control G51.4 Start synchronous control G51.5 Start composite control G51.6 Start superimposed control G52 G53 Machine coordinate system setting G53.1 Tool axis direction control G53.2 Selecting a machine coordinate system with feedrate G53.6 Tool center point retention type tool axis direction control G54 (G54.1) G55 Workpiece coordinate system 2 selection G56 Workpiece coordinate system 3 selection G57 Workpiece coordinate system 4 selection G58 Workpiece coordinate system 5 selection G59 Workpiece coordinate system 6 selection G60 00 Single direction positioning G61 G62 Automatic corner override G63 Tapping mode G64 Cutting mode G65 00 Macro call G66 G66.1 Macro modal call B G67 Macro modal call A/B cancel G68 G69 Coordinate system rotation cancel or 3-dimensional coordinate conversion mode off G68.2 Tilted working plane indexing G68.3 Tilted working plane indexing by tool axis direction G68.4 Tilted working plane indexing (incremental multi-command) G72.1 G72.2 Figure copying (linear copy) G73 G74 Left-handed tapping cycle G75 01 Plunge grinding cycle G76 09 Fine boring cycle G77 G78 Continuous-feed surface grinding cycle G79 Intermittent-feed surface grinding cycle

G80 09 G80.4

G81.4 Electronic gear box: synchronization start G80.5 G81.5 Electronic gear box 2 pair: synchronization start

G81 09

Scaling cancel

Programmable mirror image cancel

Cancel synchronous control

Local coordinate system setting

Workpiece coordinate system 1 selection

Exact stop mode

Macro modal call A

Coordinate system rotation start or 3-dimensional coordinate conversion mode on

Figure copying (rotary copy)

Peck drilling cycle

Plunge direct sizing/grinding cycle

Canned cycle cancel Electronic gear box : synchronization cancellation Electronic gear box: synchronization cancellation

Electronic gear box 2 pair: synchronization cancellation

Drilling cycle or spot boring cycle Electronic gear box : synchronization start

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2. PREPARATORY FUNCTION

B-64694EN-2/01 PROGRAMMING

Table 2 G code list

G code Group Function

G81.1 00 High precision oscillation G82 G83 Peck drilling cycle G84 Tapping cycle G84.2 Rigid tapping cycle (FS15 format) G84.3 Left-handed rigid tapping cycle (FS15 format) G85 Boring cycle G86 Boring cycle G87 Back boring cycle G88 Boring cycle G89 Boring cycle G90 G91 Incremental programming G91.1 G92 Setting for workpiece coordinate system or clamp at maximum spindle speed G92.1 Workpiece coordinate system preset G93 G94 Feed per minute G95 Feed per revolution G96 G97 Constant surface speed control cancel G96.1 G96.2 Spindle indexing execution (not waiting for completion) G96.3 Spindle indexing completion check G96.4 SV speed control mode ON G98 G99 Canned cycle : return to R point level G107 00 Cylindrical interpolation G160 G161 In-feed control

Drilling cycle or counter boring cycle

Absolute programming

Checking the maximum incremental amount specified

Inverse time feed

Constant surface speed control

Spindle indexing execution (waiting for completion)

Canned cycle : return to initial level

In-feed control cancel

(G FUNCTION)

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3. INTERPOLATION FUNCTION PROGRAMMING B-64694EN-2/01

G33IP_ F_ ;

F :Long axis direction lead

Workpiece

Least command increment

Command value range of the lead

0.001 mm

F1 to F50000 (0.01 to 500.00mm)

0.0001 mm

F1 to F50000 (0.01 to 500.00mm)

0.0001 inch

F1 to F99999 (0.0001 to 9.9999inch)

0.00001 inch

F1 to F99999 (0.0001 to 9.9999inch)

3 INTERPOLATION FUNCTION

3.1 THREADING (G33)

Straight threads with a constant lead can be cut. The position coder mounted on the spindle reads the spindle speed in real-time. The read spindle speed is converted to the feedr ate per minute to feed the tool.

Format

Explanation

In general, threading is repeated along the same tool path in rough cutting through finish cutting for a screw. Since threading starts when the position coder mounted on the spindle outputs a 1-turn signal, threading is started at a fixed point and the tool path on the workpiece is unchanged for repeated threading. Note that the spindle speed must remain constant from rough cutting through finish cutting. If not, incorrect thread lead will occur. In general, the lag of the servo system, etc. will produce somewhat incorrect leads at the starting and ending points of a thread cut. To compensate for this, a threading length somewhat longer than required should be specified. Table 3.1 (a) lists the ranges for specifyin g the thread lead.

Table 3.1 (a) Ranges of lead sizes th at can be specified

Metric input

Inch input

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B-64694EN-2/01 PROGRAMMING 3. INTERPOLATION FUNCTION

NOTE

1 The threading spindle speed which executes threading is limited as follows :

smaller

2 Cutting feedrate override is not applied to the converted feedrate in all machining

MANUAL (Common to Lathe System/Machining Center System) (B-64694EN).

Workpiece

1.5mm

0 < spindle speed ≤ (Maximum cutting feedrate of threading axis(per rev.)) / (Thread lead (length per rev.)) Spindle speed : min-1 Thread lead : mm or inch

Maximum cutting feedrate : mm/min or inch/min ; maximum command-specified

feedrate for feed-per-minute mode or maximum feedrate that is determined based on mechanical restrictions including those related to motors, whichever is

process from rough cutting to finish cutting. The feedrate is fixed at 100% 3 The converted feedrate is limited by the upper feedrate specified. 4 Feed hold is disabled during threading. Pressing the feed hold key during

threading causes the machine to stop at the end point of the next block after

threading (that is, after the G33 mode is terminated) 5 The leads of a thread are generally incorrect, due to automatic acceleration and

deceleration. Thus distance allowances must be made to the extent in the

program. Refer “INCORRECT THREADED LENGTH” in the OPERATOR’S

Limitation

- Tool Retract and Recover

When the major axis for threading is specified as th e retraction axis, retraction is not performed. In this case, after a block that does not specify threading is executed, an alarm PS0429, “ILLEGAL COMMAND IN G10.6” is issued and the tool sto ps.

Example

Threading at a lead of 1.5mm G33 Z10. F1.5;

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PROGRAMMING B-64694EN-2/01

4. COORDINATE VALUE AND DIMENSION

Gxx Gyy G16; Starting the polar coordinate command

(polar coordinate mode) G00 IP_ ; :

Polar coordinate command : G15;

Canceling the polar coordinate command (polar coordinate mode)

Second axis : angle of polar coordinate

Command position

Actual position

Angle

Radius

Command position

Actual position

Angle

Radius

When the angle is specified with an absolute command

When the angle is speci

fied with an incremental command

4 COORDINATE VALUE AND DIMENSION

4.1 POLAR COORDINATE COMMAND (G15, G16)

The end point coordinate value can be input in polar coordinates (radius and angle). The plus direction of the angle is counterclockwise of the selected plane first axis + direction, and the minus direction is clockwise. Both radius and angle can be commanded in either absolute or incremental programming (G90, G91).

Format

G16 : Polar coordinate command G15 : Polar coordinate command cancel Gxx : Plane selection of the polar coordinate command (G17, G18 or G19) Gyy : Center selection of the polar coordinate command (G90 or G91) G90 specifies the origin of the program coordinate system as the origin of the

polar coordinate system, from which a radius is measured.

G91 specifies the current position as the origin of the polar coordinate

system, from which a radius is measured.

IP_ : Specifying the addresses of axes constituting the plane selected for the polar

coordinate system, and their values

First axis : radius of polar coordinate

- Setting the origin of the program coordinate system as the origi n of the polar coordinate system

Specify the radius (the distance between the origin and the point) to be programmed with an absolute programming. The origin of the program coordin ate system is set as the origin of the polar coordinate system.

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B-64694EN-2/01 PROGRAMMING

4. COORDINATE VALUE AND DIMENSION

When the angle is specified with an incremental command

Command position

Actual position

Command position

Angle

Actual position

When the angle is specified with an absolute command

Radius

Angle

PCC = 0

PCC = 1

When G16 has been commanded

[Example] G16 G91 G00 X20.0 Y30.0

commanded after reset (*1)

the selected plane 1st axis (radius)

program coordinate system (*2)

command.

(angle)

coordinate command.

- Setting the current position as the origin of the polar coor di nate system

Specify the radius (the distance between the current position and the point) to be programmed with an incremental programming. The current position is set as the origin of the polar coordinate system.

- Operation of which the address in the selected pl ane 1st axis (radius) or 2nd axis (angle) is omitted

The behavior depends on bit 5 (PCC) of parameter No. 10351. (PCC = 0 (FS0i specification), PCC = 1 (FS16i compatible specification))

The origin of the polar coordinate system

The origin of the polar coordinate system is decided according to Table 4.1 (a).

Table 4.1 (a) The origin of the polar coordinate system is decided

The origin of the program coordinate system

When Polar coordinate command has been

When the selected plane has been changed (G17,G18,G19)

When the modal is G90 and there is the address of

When the modal is G91 and there is the address of

When there is not the address of the selected plane 1st axis (radius) and there is the address of the selected plane 2nd axis (angle)

When there is not the address of the selected plane 1st axis (radius) and the selected plane 2nd axis

When the origin of the polar coordinate system before this command is the origin of the

When the origin of the polar coordinate system before this command is the current position (*3)

However, when the modal is G91 and there is the address of the selected plane 1st axis (radius), the origin of the polar coordinate system is the current position.

The origin of the program coordinate system

The current position

The origin of the program coordinate system

The current position In addition, the radius becomes 0. Therefore, the axis doesn't move by this

The origin of the polar coordinate system is not decided because this command is not regarded as Polar

The origin of the program coordinate system

*1 This means that Polar coordinate command is continued after reset in the polar coordinate command

mode.

This operation can use at reset state (bit 6 (CLR) of parameter No. 3402 is 0).

[Example] G16 G90 G00 X100.0 Y45.0 : RESET

G91 Y60.0 ......................... Polar coordinate command is continued after reset.

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PROGRAMMING B-64694EN-2/01

4. COORDINATE VALUE AND DIMENSION

PCC = 0

PCC = 1

commanded

Therefore, the axes move to (X 35.355, Y 61.237).

*2 This means the following. (1) G16 or the selected plane 1st axis (radius) in G90 is commanded. (2) The origin of the program coordinate system is set to the origin of the polar coordinate.

(3) Thereafter, the selected plane 2nd axis (angle) is commanded without the address of the

selected plane 1st axis (radius).

[Example]

G16 .................................... The origin of the polar coordinate system is the origin of the

program coordinate system.

G91 Y60.0 ......................... There is not the ad dress of the selected plane 1st axis

(radius) and there is the address of the selected plane 2nd axis (angle).

*3 This means the following.

(1) The selected plane 1st axis (radius) in G91 is commanded. (2) The current position is set to the origin of the polar coordinate. (3) Thereafter, the selected plane 2nd axis (angle) is commanded without the address of the

selected plane 1st axis (radius).

[Example]

G16

G91 X30.0 Y30.0 ............... The origin of the polar coordinate system is the current

position.

G90 Y40.0 ......................... There is no t the address of the selected plane 1st axis

(radius) and there is the address of the selected plane 2nd axis (angle).

The radius and angle

The radius and the angle at following cases are set according to Table 4.1 (b).

- When G16 has been commanded.

- When Polar coordinate command has been commanded after reset.

- When the selected plane has been changed (G1 7, G18, G19).

Table 4.1 (b) The radius and the angle

When G16 has been

When Polar coordinate command has been commanded after reset

The radius and the angle become 0. When the radius or the angle is commanded at the same time, the radius or the angle becomes the value specified in the command. [Example] G90 G00 X50.0 Y50.0

G16 ............ The radius = 0, the angle = 0.

Y60.0 ......... The radius = 0, the angle = 60.0.

Therefore, the axes move to (X 0.0, Y 0.0).

- 18 -

The radius and the angle are calculated from the current position. When the radius or the angle is commanded at the same time, the radius or the angle becomes the value specified in the command. [Example] G90 G00 X50.0 Y50.0

G16 ........ The radius = 70.710,

the angle = 45.0. (from the current position (X 50.0, Y 50.0))

Y60.0 ..... The radius = 70.710,

the angle = 60.0.

B-64694EN-2/01 PROGRAMMING

4. COORDINATE VALUE AND

DIMENSION

PCC = 0

PCC = 1

Therefore, the axes move to (Y 0.0, Z 0.0).

Therefore, the axes move to (Y 76.604, Z 64. 279 ).

- The origin of the program coordinate

system is set as the origin of the polar coordinate system.

- The XY plane is selected.

150°

30°

100mm

270°

When the selected plane has been changed (G17,G18, G19)

Example

Bolt hole circle

The radius and the angle become 0. When the radius or the angle is commanded at the same time, the radius or the angle becomes the value specified in the command. [Example] G90 G16 G17

X100.0 Y30.0 ......... The radius = 100.0,

the angle = 30.0.

G19 Z40.0 ............The radius = 0,

the angle = 40.0.

The radius and the angle are succeeded. When the radius or the angle is commanded at the same time, the radius or the angle becomes the value specified in the command. [Example] G90 G16 G17

X100.0 Y30.0 ......... The radius = 100.0,

the angle = 30.0.

G19 Z40.0 .... The radius = 100.0,

the angle = 40.0.

- Specifying angles and a radius with absolute programmings

N1 G17 G90 G16 ; Specifying the polar coordinate command and selecting the XY plane Setting the origin of the program coordinate system as the origin of the polar

coordinate system N2 G81 X100.0 Y30.0 Z-20.0 R-5.0 F200.0 ; Specifying a distance of 100 mm and an angle of 30 deg N3 Y150.0 ; Specifying a di st ance of 100 mm and an angle of 150 deg N4 Y270.0 ; Specifying a di st ance of 100 mm and an angle of 270 deg N5 G15 G80 ; Canceling the polar coordinate command

- Specifying angles with incremental programmings and a radi us with absolute programmings

N1 G17 G90 G16; Specifying the polar coordinate command and selecting the XY plane Setting the origin of the program coordinate system as the origin of the polar

coordinate system N2 G81 X100.0 Y30.0 Z-20.0 R-5.0 F200.0 ; Specifying a distance of 100 mm and an angle of 30 deg N3 G91 Y120.0 ; Specifying a distance of 100 mm and an angle of +120 deg N4 Y120.0 ; Specifying a distance of 100 mm and an angle of +120 deg N5 G15 G80 ; Canceling the polar coordinate command

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PROGRAMMING B-64694EN-2/01

4. COORDINATE VALUE AND DIMENSION

NOTE

adding new CNC function.

Limitation

- Specifying a radius in the polar coordinate m ode

In the polar coordinate mode, specify a radius for circular interpolation or helical interpolation (G02, G03) with R.

- Axes that are not considered part of a polar coordinate command in the pol ar coordinate mode

Axes specified for the following commands are not considered part of the polar coordinate command. The command value is not converted by the polar coordinate command.

- Dwell (G04)

- Programmable data input (G10)

- Local coordinate system setting (G52)

- Workpiece coordinate system setting (G92)

- Machine coordinate system setting (G53)

- Stored stroke check (G22)

- Coordinate system rotation (G68)

- Scaling (G51)

- Tool retract and recover (G10.6)

- Workpiece coordinate system preset (G92.1)

- Figure copying (G72.1, G72.2)

- Cylindrical interpolation (G07.1, G107)

- Programmable mirror image (G51.1)

- Rotary axis

The polar coordinate command specify by the selected plane first axis and second axis. The polar coordinate command cannot be specified with the axis that is set as a rotation axis.

- Function with limitation when using simultaneously

There is a limitation when the following functions are used together with the polar coordinate command. For details of the limitations, refer to the explanation of each function.

- Retrace

- Inch/metric conversion

- Functions that cannot be used simultaneously

The following functions cannot be used together with the polar coordinate command.

- AI contour control

- Tilted working plane indexing

- Cs contour control

- Optional angle chamfering and corner rounding

“Axes that are not considered part of a polar coordinate command in the polar

coordinate mode”, “Function with limitation when using simultaneously” and “Functions that cannot be used simultaneously” might be changed or added by

- 20 -

B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

Drilling

(-Z direction)

Operation at the bottom of a hole

Retraction

(+Z direction)

G73

Intermittent feed

Rapid traverse

High-speed peck drilling cycle

G74

Feed

Dwell → Spindle CW

Feed

Left-hand tapping cycle

G76

Feed

Spindle orientation

Rapid traverse

Fine boring cycle

G80

- - -

Cancel

Drilling cycle, spot drilling cycle

Drilling cycle, counter boring cycle

G83

Intermittent feed

Rapid traverse

Peck drilling cycle

G84

Feed

Dwell → Spindle CCW

Feed

Tapping cycle

G85

Feed

Boring cycle

G86

Feed

Spindle stop

Rapid traverse

Boring cycle

G87

Feed

Spindle CW

Rapid traverse

Back boring cycle

G88

Feed

Dwell → Spindle stop

Manual

Boring cycle

G89

Feed

Dwell

Feed

Boring cycle

5 FUNCTIONS TO SIMPLIFY PROGRAMMING

5.1 CANNED CYCLE FOR DRILLING

Overview

Canned cycles for drilling make it easier for the programmer to create programs. With a canned cycle, a frequently-used machining operation can be specified in a single block with a G function; without canned cycles, normally more than one block is required. In addition, the use of canned cycles can shorten the program to save memory. Table 5.1 (a) lists canned cycles for drilling.

Table 5.1 (a) Canned cycles for drilling

G code

G81 Feed - Rapid traverse

G82 Feed Dwell Rapid traverse

Application

- 21 -

PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

Operation 1

Feed

Initial level

Operation 2

Operation 6

Point R level

Operation 5

Operation 3

Rapid traverse

Operation 4

G code

Positioning plane

Drilling axis

G17

Xp-Yp plane

G18

Zp-Xp plane

G19

Yp-Zp plane

Explanation

A canned cycle for drilling consists of a sequence of six operations. Operation 1 Positioning of axes X and Y (including also another axis) Operation 2 Rapid traverse up to point R level Operation 3 Hole machining Operation 4 Operation at the bottom of a hole Operation 5 Retraction to point R level Operation 6 Rapid traverse up to the initial point

Fig. 5.1 (a) Operation sequence of canned cycle for drilling

- Positioning plane

The positioning plane is determined by plane selection code G17, G18, or G19. The positioning axis is an axis other than the drilling axis.

- Drilling axis

Although canned cycles for drilling include tapping and boring cycles as well as drilling cycles, in this chapter, only the term drilling will b e used to refer to operations implemented with canned cycles. The drilling axis is a basic axis (X, Y, or Z) not used to define the positioning plane, or any axis parallel to that basic axis. The axis (basic axis or parallel axis) used as the drilling axis is determined according to the axis address for the drilling axis specified in the same block as G codes G73 to G89. If no axis address is specified for the drilling axis, the basic axis is assumed to be the drilling axis.

Table 5.1 (b) Positioning plane and drilling axis

Xp: X axis or an axis parallel to the X axis Yp: Y axis or an axis parallel to the Y axis Zp: Z axis o r an axis parallel to the Z axis

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

CAUTION

Switch the drilling axis after canceling a canned cycle for drilling.

NOTE

drilling axis. When FXY=0, the Z axis is always the drilling axis.

G90 (Absolute programming)

G91 (Incremental programming)

Z = 0

Point R

Point Z

Point R

Point Z

Example

Assume that the U, V and W axes be parallel to the X, Y, and Z axes respectively. This condition is specified by parameter No. 1022. G17 G81 Z_ _ : The Z axis is used for drilling. G17 G81 W_ _ : The W axis is used for drilling. G18 G81 Y_ _ : The Y axis is used for drilling. G18 G81 V_ _ : The V axis is used for drilling. G19 G81 X_ _ : The X axis is used for drilling. G19 G81 U_ _ : The U axis is used for drilling. G17 to G19 may be specified in a block in which any of G73 to G89 is not specified.

A bit 0 (FXY) of parameter No. 5101 can be set to the Z axis always used as the

- Travel distance along the drilling axis G90/G91

The travel distance along the drilling axis varies for G90 and G91 as Fig. 5.1 (b):

Fig. 5.1 (b) Absolute programming and incremental programming

- Drilling mode

G73, G74, G76, and G81 to G89 are modal G codes an d remain in effect until canceled. When in effect, the current state is the drilling mode. Once drilling data is specified in the drilling mode, the data is retained until modified or canceled. Specify all necessary drilling data at the beginning of canned cycles; when canned cycles are being performed, specify data modifications only.

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

G98 (Return to initial level)

G99 (Return to point R level)

Initial level

Point R level

In the case of without ",D"

parameter to be used

G73

High-speed peck drilling cycle

No.5114

High-speed peck rigid tapping cycle,

Peck rigid tapping cycle

Peck drilling cycle

No.5115

Small-hole peck drilling cycle

No.5174

G84.2

Rigid tapping cycle (FS15 format)

No.5213

G84.3

Left-handed rigid tapping cycle (FS15 format)

No.5213

Number of repeats K The maximum command value = 9999

NOTE

For K, specify an integer of 0 or 1 to 9999.

- Return point level G98/G99

When the tool reaches the bottom of a hole, the tool may be returned to point R or to the initial level. These operations are specified with G98 and G99. The operations performed when G98 and G99 are specified are shown in Fig. 5.1 (c). Generally, G99 is used for the first drilling operation and G98 is used for the last drilling operation. The initial level does not change even when drilling is performed in the G99 mode.

Fig. 5.1 (c) Initial level and point R level

- Clearance

Clearance is commanded with an address D with a comma. If the cycle is commanded without ",D" command, the clearance parameter will be valid. The cycles that can be commanded are as shown in Table 5.1 (c). If clearance is not programmed, use parameterized clearance. ",D" should be commanded in the block where the drilling operation is performed. It is memorized as a modal command during canned cycle for drilling. Decimal point input is possible for the ",D" command.

Table 5.1 (c) List of canned cycle for drilling which clearance can be commanded

G code Function

G74, G84

G83

command, the clearance

No.5213

- Repeat

To repeat drilling for equally-spaced holes, specify the number of repeats in K_. K is effective only within the block where it is specified. Specify the first hole position in incremental programming (G91). If it is specified in absolute programming (G90), drilling is repeated at the same position.

If K0 is specified, drilling data is stored, but drilling is not performed.

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

Positioning (rapid traverse G00)

Cutting feed (linear interpolation G01)

Manual feed

OSS

Oriented spindle stop (The spindle stops at a fi xed rotation position)

Dwell

- Single block

If a drilling cycle is performed in a single block, the control unit stops at each of the end points of operations 1, 2, and 6 in Fig. 5.1 (a). This means that three starts are made to make a single hole. At th e end points of operations 1 and 2, the feed hold lamp turns on and the control unit stops. If the repetitive count is not exhausted at the end point of operation 6, the control unit stops in the feed hold mode, and otherwise, stops in the single block stop mode. Note that G87 does not cause a stop at point R in G87. G88 causes a stop at point Z after a dwell.

- Cancel

To cancel a canned cycle, use G80 or a gro up 01 G code.

Group 01 G codes

G00 : Positioning (rapid traverse) G01 : Linear interpolation G02 : Circular interpolation or helical interpolation (CW) G03 : Circular interpolation or helical interpolation (CCW)

- Symbols in figures

Subsequent sections explain the individual canned cycles. Figures in these Explanation use the following symbols:

Shift (rapid traverse G00)

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

G73 X_ Y_ Z_ R_ Q_ ,D_ F_ K_ ;

K_ : Number of repeats (if required)

G73 (G98)

G73 (G99)

Point R

qqd

Point Z

Initial level

Point R level

Point R

qqd

Point Z

5.1.1 High-Speed Peck Drilling Cycle (G73)

This cycle performs high-speed peck drilling. It performs intermittent cutting feed to the bottom of a hole while removing chips from the hole.

Format

X_ Y_ : Hole position data Z_ : The distance from point R to the bottom of the hole R_ : The distance from the initial level to point R level Q_ : Depth of cut for each cutting feed ,D_ : Clearance F_ : Cutting feedrate

Explanation

- Operations

The high-speed peck drilling cycle performs intermittent feeding along the Z-axis. When this cycle is used, chips can be removed from the hole easily, and a smaller val ue can b e set for retractio n. This allows, drilling to be performed efficiently. Set the clearance, d, in ",D" command or parameter No. 5114. The tool is retracted in rapid traverse.

- Spindle rotation

Before specifying G73, rotate the spindle using an auxiliary function (M code).

- Auxiliary function

When the G73 code and an M code are specified in the same block, the M code is executed at the time of the first positioning operation. When K is used to specify the number of repeats, the M code is executed for the first hole only; for the second and subsequent holes, the M code is not executed.

- Tool length compensation

When a tool length compensation (G43, G44, or G49) is specified in the canned cycle for drilling, the offset is applied after the time of positioning to point R.

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

Limitation

- Axis switching

Before the drilling axis can be changed, the canned cycle for drilling must be canceled.

- Drilling

In a block that does not contain X, Y, Z, R, or any other axes, drilling is not performed.

- Q

Specify Q in blocks that perform drilling. If they are specified in a block that does not perform drilling, they cannot be stored as modal data.

- Cancel

Do not specify a G code of the 01 group (G00 to G03) and G73 in a single block. Otherwise, G73 will be canceled.

- Tool offset

In the canned cycle mode for drilling, tool offsets are i gnored.

Example

M3 S2000 ; Cause the spindle to start rotating. G90 G99 G73 X300.0 Y-250.0 Z-150.0 R-100.0 Q15.0 F120 ; Position, drill hole 1, then return to point R. Y-550.0 ; Position, drill hole 2, then return to point R. Y-750.0 ; Position, drill hole 3, then return to point R. X1000.0 ; Position, drill hole 4, then return to point R. Y-550.0 ; Position, drill hole 5, then return to point R. G98 Y-750.0 ; Position, drill hole 6, then return to the initial level. G80 G28 G91 X0 Y0 Z0 ; Return to the reference position M5 ; Cause the spindle to stop rotating.

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

G74 X_ Y_ Z_ R_P_ F_ K_ ;

K_ : Number of repeats (if required)

G74 (G98)

G74 (G99)

Point R

Point Z

Spindle CW

Spindle CCW

Initial level

Point R

Point Z

Spindle CW

Spindle CCW

Point R level

CAUTION

stop the machine until the return operation is completed.

5.1.2 Left-Handed Tapping Cycle (G74)

This cycle performs left-handed tapping. In the left-handed tapping cycle, when the bottom of the hole has been reached, the spindle rotates clockwise.

Format

X_ Y_ : Hole position data Z_ : The distance from point R to the bottom of the hole R_ : The distance from the initial level to point R level P_ : Dwell time F_ : Cutting feedrate

Explanation

- Operations

Tapping is performed by turning the spindle counterclockwise. When the bottom of the hole has been reached, the spindle is rotated clockwise fo r retraction. This creates a reverse thread.

Feedrate overrides are ignored during left-handed tapping. A feed hold does not

- Spindle rotation

Before specifying G74, use an auxiliary function (M code) to rotate the spindle counterclockwise. If drilling is continuously performed with a small value specified for the distance between the hole position and point R level or between the initial level and point R level, the normal spindle speed may not be reached at the start of hole cutting op eration. In this case, insert a d well before each drilling operation with G04 to delay the operation, without specifying the number of repeats for K. For some machines, the above note may not be considered. Refer to the manual provided by the machine tool builder.

- Auxiliary function

When the G74 command and an M code are specified in the same block, the M code is ex ecuted at the time of the first positioning operation. When K is used to specify the n umber of repeats, the M code is executed for the first hole only; for the second and subsequent holes, the M code is not executed.

- Tool length compensation

When a tool length compensation (G43, G44, or G49) is specified in the canned cycle for drilling, the offset is applied after the time of positioning to point R.

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

Limitation

- Axis switching

Before the drilling axis can be changed, the canned cycle for drilling must be canceled.

- Drilling

In a block that does not contain X, Y, Z, R, or any other axes, drilling is not performed.

- P

Specify P in blocks that perform drilling. If it is specified in a block that does not perform drilling, it cannot be stored as modal data.

- Cancel

Do not specify a G code of the 01 group (G00 to G03) and G74 in a single block. Otherwise, G74 will be canceled.

- Tool offset

In the canned cycle mode for drilling, tool offsets are ignored.

Example

M4 S100 ; Cause the spindle to start rotating. G90 G99 G74 X300.0 Y-250.0 Z-150.0 R-120.0 F120 ; Position, tapping hole 1, then return to point R. Y-550.0 ; Position, tapping hole 2, then return to point R. Y-750.0 ; Position, tapping hole 3, then return to point R. X1000.0 ; Position, tapping hole 4, then return to point R. Y-550.0 ; Position, tapping hole 5, then return to point R. G98 Y-750.0 ; Position, tapping hole 6, then return to the initial level. G80 G28 G91 X0 Y0 Z0 ; Return to the ref erence position M5 ; Cause the spindle to stop rotating.

- 29 -

PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

G76 X_ Y_ Z_ R_ Q_ P_ F_ K_ ;

K_ : Number of repeats (if required)

Spindle CW

Initial level

Point R

Point Z

OSS

Spindle CW

Point R level

Point R

Point Z

OSS

Shift amount q

Spindle orientation

Tool

5.1.3 Fine Boring Cycle (G76)

The fine boring cycle bores a hole precisely. When the bottom of the hole has been reached, the spindle stops, and the tool is moved away from the machined surface of the workpiece and retracted.

Format

X_ Y_ : Hole position data Z_ : The distance from point R to the bottom of the hole R_ : The distance from the initial level to point R level Q_ : Shift amount at the bottom of a hole P_ : Dwell time at the bottom of a hole F_ : Cutting feedrate

G76(G98) G76(G99)

Explanation

- Operations

When the bottom of the hole has been reached, the spindle is stopped at the fixed rotation position, and the tool is moved in the direction opposite to the tool nose and retracted. This ensures that the machined surface is not damaged and enables precise and efficient boring to be performed.

- Spindle rotation

Before specifying G76, use a Auxiliary function (M code) to rotate the spindle.

- Auxiliary function

When the G76 command and an M code are specified in the same block, the M code is ex ecuted at the time of the first positioning operation. When K is used to specify the n umber of repeats, the M code is executed for the first hole only; for the second and subsequent holes, the M code is not executed.

- Tool length compensation

When a tool length compensation (G43, G44, or G49) is specified in the canned cycle for drilling, the offset is applied after the time of positioning to point R.

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

CAUTION

cut for G73 and G83.

Limitation

- Axis switching

Before the drilling axis can be changed, the canned cycle for drilling must be canceled.

- Drilling

In a block that does not contain X, Y, Z, R, or any additional axes, drilling is not performed.

- P, Q

Be sure to specify a positive value in Q. If Q is specified with a n egative value, the sign is ignored. Set the direction of shift in the parameter No.5148. Specify P and Q in a block that performs drilling. If they are specified in a block that does not perform drilling, they are not stored as modal data.

Q (shift at the bottom of a hole) is a modal value retained within canned cycles

for drilling. It must be specified carefully because it is also used as the depth of

- Cancel

Do not specify a G code of the 01 group (G00 to G03) and G76 in a single block. Otherwise, G76 will be canceled.

- Tool offset

In the canned cycle mode for drilling, tool offsets are igno red.

Example

M3 S500 ; Cause the spindle to start rotating. G90 G99 G76 X300.0 Y-250.0 Position, bore hole 1, then return to point R. Z-150.0 R-120.0 Q5.0 Orient at the bottom of the hole, then shift by 5 mm. P1000 F120 ; Stop at the bottom of the hole for 1 sec. Y-550.0 ; Position, drill hole 2, then return to point R. Y-750.0 ; Position, drill hole 3, then return to point R. X1000.0 ; Position, drill hole 4, then return to point R. Y-550.0 ; Position, drill hole 5, then return to point R. G98 Y-750.0 ; Position, drill hole 6, then return to the initial level. G80 G28 G91 X0 Y0 Z0 ; Return to the reference position M5 ; Cause the spindle to stop rotating.

- 31 -

PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

G81 X_ Y_ Z_ R_ F_ K_ ;

K_ : Number of repeats (if required)

G81 (G98)

G81 (G99)

Initial level

Point R

Point Z

Point R level

Point R

Point Z

5.1.4 Drilling Cycle, Spot Drilling (G81)

This cycle is used for normal drilling. Cutting feed is performed to the bottom of the hole. The tool is then retracted from the bottom of the hole in rapid traverse.

Format

X_ Y_ : Hole position data Z_ : The distance from point R to the bottom of the hole R_ : The distance from the initial level to point R level F_ : Cutting feedrate

Explanation

- Operations

After positioning along the X- and Y-axes, rapid traverse is performed to point R. Drilling is performed from point R to point Z. The tool is then retracted in rapid traver se.

- Spindle rotation

Before specifying G81, use an auxiliary function (M code) to rotate the spindle.

- Auxiliary function

When the G81 command and an M code are specified in the same block, the M code is ex ecuted at the time of the first positioning operation. When K is used to specify the n umber of repeats, the M code is performed for the first hole only; for the second and subsequent holes, the M code is not executed.

- Tool length compensation

When a tool length compensation (G43, G44, or G49) is specified in the canned cycle for drilling, the offset is applied after the time of positioning to point R.

Limitation

- Axis switching

Before the drilling axis can be changed, the canned cycle for drilling must be canceled.

- Drilling

In a block that does not contain X, Y, Z, R, or any other axes, drilling is not performed.

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

G82 X_ Y_ Z_ R_ P_ F_ K_ ;

K_ : Number of repeats (if required)

G82 (G98)

G82 (G99)

Initial level

Point R

Point Z

Point R level

Point R

Point Z

- Cancel

Do not specify a G code of the 01 group (G00 to G03) and G81 in a single block. Otherwise, G81 will be canceled.

- Tool offset

In the canned cycle mode for drilling, tool offsets are ignored.

Example

M3 S2000 ; Cause the spindle to start rotating. G90 G99 G81 X300.0 Y-250.0 Z-150.0 R-100.0 F120 ; Position, drill hole 1, then return to point R. Y-550.0 ; Position, drill hole 2, then return to point R. Y-750.0 ; Position, drill hole 3, then return to point R. X1000.0 ; Position, drill hole 4, then return to point R. Y-550.0 ; Position, drill hole 5, then return to point R. G98 Y-750.0 ; Position, drill ho le 6, then return to the initial

level. G80 G28 G91 X0 Y0 Z0 ; Return to the reference position M5 ; Cause the spindle to stop rotating.

5.1.5 Drilling Cycle Counter Boring Cycle (G82)

This cycle is used for normal drilling. Cutting feed is performed to the bottom of the hole. At the bottom, a dwell is performed, then the tool is retracted in rapid traverse. This cycle is used to drill holes more accurately with respect to depth.

Format

X_ Y_ : Hole position data Z_ : The distance from point R to the bottom of the hole R_ : The distance from the initial level to point R level P_ : Dwell time at the bottom of a hole F_ : Cutting feed rate

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

Explanation

- Operations

After positioning along the X- and Y-axes, rapid traverse is performed to point R. Drilling is then performed from point R to point Z. When the bottom of the hole has been reached, a dwell is performed. The tool is then retracted in rapid traverse.

- Spindle rotation

Before specifying G82, use an auxiliary function (M code) to rotate the spindle.

- Auxiliary function

When the G82 command and an M code are specified in the same block, the M code is ex ecuted at the time of the first positioning operation. When K is used to specify the n umber of repeats, the M code is executed for the first hole only; for the second and subsequent holes, the M code is not executed.

- Tool length compensation

When a tool length compensation (G43, G44, or G49) is specified in the canned cycle for drilling, the offset is applied after the time of positioning to point R.

Limitation

- Axis switching

Before the drilling axis can be changed, the canned cycle for drilling must be canceled.

- Drilling

In a block that does not contain X, Y, Z, R, or any other axes, drilling is not performed.

- P

Specify P in blocks that perform drilling. If it is specified in a block that does not perform drilling, it cannot be stored as modal data.

- Cancel

Do not specify a G code of the 01 group (G00 to G03) and G82 in a single block. Otherwise, G82 will be canceled.

- Tool offset

In the canned cycle mode for drilling, tool offsets are ignored.

Example

M3 S2000 ; Cause the spindle to start rotating. G90 G99 G82 X300.0 Y-250.0 Z-150.0 R-100.0 P1000 F120 ; Position, drill hole 1, and dwell for 1 sec at the bottom of the hole, then

return to point R. Y-550.0 ; Position, drill hole 2, then return to point R. Y-750.0 ; Position, drill hole 3, then return to point R. X1000.0 ; Position, drill hole 4, then return to point R. Y-550.0 ; Position, drill hole 5, then return to point R. G98 Y-750.0 ; Position, drill hole 6, then return to the initial level. G80 G28 G91 X0 Y0 Z0 ; Return to the reference position M5 ; Cause the spindle to stop rotating.

- 34 -

B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

G83 X_ Y_ Z_ R_ Q_ ,D_ F_ K_ ;

K_ : Number of repeats (if required)

G83 (G98)

G83 (G99)

q d

Point R

Point Z

Initial level

Point R

Point Z

Point R level

5.1.6 Peck Drilling Cycle (G83)

This cycle performs peck drilling. It performs intermittent cutting feed to the bottom of a hole while removing shavings from the hole.

Format

Explanation

- Operations

Q represents the depth of cut for each cutting feed. It must always be specified as an incremental valu e. In the second and subsequent cutting feeds, rapid traverse is performed up to a point that lies at a distance of d just before where the last drilling has ended. Th en, the cutting feed is performed from the point again. d is set in ",D" command or parameter No.5115. Be sure to specify a positive value in Q. Negative values are ignored.

- Spindle rotation

Before specifying G83, use an auxiliary function (M code) to rotate the spindle.

- Auxiliary function

When the G83 command and an M code are specified in the same block, the M code is ex ecuted at the time of the first positioning operation. When K is used to specify the number of repeats, the M code is executed for the first hole only; for the second and subsequent holes, the M code is not executed.

- Tool length compensation

When a tool length compensation (G43, G44, or G49) is specified in the canned cycle for drilling, the offset is applied after the time of positioning to point R.

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

Limitation

- Axis switching

Before the drilling axis can be changed, the canned cycle for drilling must be canceled.

- Drilling

In a block that does not contain X, Y, Z, R, or any other axes, drilling is not performed.

- Q

Specify Q in blocks that perform drilling. If they are specified in a block that does not perform drilling, they cannot be stored as modal data.

- Cancel

Do not specify a G code of the 01 group (G00 to G03) and G83 in a single block. Otherwise, G83 will be canceled.

- Tool offset

In the canned cycle mode for drilling, tool offsets are ignored.

Example

M3 S2000 ; Cause the spindle to start rotating. G90 G99 G83 X300.0 Y-250.0 Z-150.0 R-100.0 Q15.0 F120.0 ; Position, drill h ole 1, then return to point R. Y-550.0 ; Position, drill hole 2, then return to point R. Y-750.0 ; Position, drill hole 3, then return to point R. X1000.0 ; Position, drill hole 4, then return to point R. Y-550.0 ; Position, drill hole 5, then return to point R. G98 Y-750.0 ; Position, drill hole 6, then return to the initial level. G80 G28 G91 X0 Y0 Z0 ; Return to the reference position M5 ; Cause the spindle to stop rotating.

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

G83 X_ Y_ Z_ R_ Q_ ,D_ F_ I_ K_ P_ ;

(If this is omitted, P0 is assumed as the default.)

G83 (G98)

G83 (G99)

∆

Point R

Point Z

Initial level

Dwell

Overload torque

∆

Point R

Point Z

Dwell

Overload torque

Point R level

∆

()

5.1.7 Small-Hole Peck Drilling Cycle (G83)

An arbor with the overload torque detection function is used to retract the tool when the overload torque detection signal (skip signal) is detected during drilling. Drilling is resumed after the spindle speed and cutting feedrate are changed. These steps are repeated in this peck drilling cycle. The mode for the small–hole peck drilling cycle is selected when the M cod e in parameter No. 5163 is specified. The cycle can be started by specifying G83 in this mode. This mode is canceled when G80 is specified or when a reset occurs.

Format

X_ Y_ : Hole position data Z_ : Distance from point R to the bottom of the hole R_ : Distance from the initial level to point R

Q_ : Depth of each cut ,D_ : Clearance F_ : Cutting feedrate I_ : Forward or backward traveling speed (same format as F above) (If this is omitted, the values in parameters Nos. 5172 and 5173 are

assumed as defaults.) K_ : Number of times the operation is repeated (if required) P_ : Dwell time at the bottom of the hole

∆: Initial clearance when the tool is retracted to point R and the clearance from the bottom of the hole in the

second or subsequent drilling (",D" command or parameter No. 5174)

q: Depth of each cut

Path along which the tool travels at the rapid traverse rate Path along which the tool travels at the programmed cutting feedrate

Path along which the tool travels at the forward or backward rate specified with parameters during the cycle

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

NOTE

target point as previous advancing.

Explanations

- Component operations of the cycle

* X- and Y-axis positioning * Positioning at point R along the Z-axis * Cutting along the Z-axis (first time, depth of cut Q, incremental)

Retracting (bottom of hole → minimum clearance ∆, incremental) Retracting (bottom of hole + clearance ∆ → point R, absolute) Forwarding (point R → bottom of hole + clearance ∆, absolute)

Cutting (second and subsequent times, cut of depth Q + ∆, incremental) * Dwell * Return to point R along the Z-axis (or initial point) = end of cycle

Acceleration/deceleration during advancing and retraction is controlled according to the cutting feed acceleration/deceleration time constant. When retraction is performed, the position is checked at point R.

- Specifying an M code

When the M code in parameter No. 51 63 is specified , the system enters th e mode for the small–hole peck drilling cycle. This M code does not wait for F IN. Care must be taken when this M code is specified with another M code in the same block. (Example) M03 M□□ ; → Waits for FIN. M□□ M03 ; → Does not wait for FIN.

- Specifying a G code

When G83 is specified in the mode for the small-hole peck drilling cycle, the cycle is started. This continuous–state G code remains unchanged until another canned cycle is specified or until the G code for canceling the canned cycle is specified. This eliminates the need for specifying drilling data in each block when identical drilling is repeated.

- Signal indicating that the cycle is in progress

In this cycle mode, the small-hole peck drilling cycle in progress signal is set to "1" at the start of point R positioning on the axis in the drilling direction after G83 is specified and positioning is performed to the specified hold position. This signal is set to "0" if another canned cycle is specified or if this mode is canceled with G80, a reset, or an emergency stop. For details, refer to the manual of the machine tool builder.

- Overload torque detection signal

A skip signal is used as the overload torq ue detection signal. The skip signal is effective while the tool i s advancing or drilling and the tool tip is between points R and Z. (The signal causes a retraction). For details, refer to the manual of the machine tool builder.

When receiving overload torque detect signal while the tool is advancing, the tool

will be retracted (clearance ∆ and to the point R), then advanced to the same

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

Cutting feedrate = F × α

Spindle speed = S × γ

- Changing the drilling conditions

In a single G83 cycle, drilling conditions are changed for each drilling operation (advance → drilling → retraction). Bits 1 and 2 of parameter OLS, NOL No. 5160 can be specified to supp ress the change in drilling conditions.

1 Changing the cutting feedrate The cutting feedrate programmed with the F code is changed for each of the second and subsequent

drilling operations. In parameters Nos.5166 and 5167, specify the respective rates of change applied when the skip signal is detected and when it is not detected in the previous drilling operation.

<First drilling> α=1.0

α=α×β÷100, where β is the rate of change for each drilling operation When the skip signal is detected during the previous drilling operation: β=b1% (parameter No.5166) When the skip signal is not detected during the previous drilling operation: β=b2% (parameter

No.5167)

If the rate of change in cutting feedrate becomes smaller than the rate specified in parameter No.

5168, the cutting feedrate is not changed. The cutting feedrate can be increased up to the maximum cutting feedrate.

2 Changing the spindle speed The spindle speed programmed with the S code is changed for each of the second and subsequent

advances. In parameters Nos. 5164 and 5165, specify the rates of change applied when the skip

signal is detected and when it is not detected in the previous drilling operation.

<First drilling> γ=1.0

γ=γ×δ÷100, where δ is the rate of change for each drilling operation When the skip signal is detected during the previous drilling operation: δ=d1% (parameter No.5164) When the skip signal is not detected during the previous drilling operation: δ=d2% (parameter

No.5165)

When the cutting feedrate reaches the minimum rate, the spindl e speed is not changed. The spindle

speed can be increased up to a value corresponding to the maximum value of S analog data.

- Advance and retraction

Advancing and retraction of the tool are not executed in the same manner as rapid -traverse positioning. Like cutting feed, the two operations are carried out as interpolated operations. Note that the tool life management function excludes advancing and retraction from the calculation of the tool life.

- Specifying address I

The forward or backward traveling speed can be specified wit h address I in the same format as address F, as shown below: G83 I1000 ; (without decimal point) G83 I1000. ; (with decimal point) Both commands indicate a speed of 1000 mm/min. Address I specified with G83 in the continuous-state mode continues to be valid until G80 is specified or until a reset occurs.

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

NOTE

cutting feedrate specified by F.

NOTE

small-hole peck drilling cycle mode.

If address I is not specified and parameter No.5172 (for backward) or No.5173

(for forward) is set to 0, the forward or backward travel speed is same as the

- Functions that can be specified

In this canned cycle mode, the following functions can be specified:

- Hole position on the X-axis, Y-axis, and additional axis

- Operation and branch by custom macro

- Subprogram (hole position group, etc.) calling

- Switching between absolute and incremental modes

- Coordinate system rotation

- Scaling (This command will not affect depth of cut Q or small clearance ∆.)

- Dry run

- Feed hold

- Single block

When single-block operation is enabled, drilling is stopped after each retraction. Also, a single block stop is performed by setting bit 0 (SBC) of parameter No. 5105.

- Feedrate override

The feedrate override function works during cutting, retraction, and advancing in the cycle.

- Custom macro interface

The number of retractions made during cutting and the number of retractions made in response to the overload signal received during cutting can be output to custom macro common variables (#100 to #149) specified in parameters Nos.5170 and 5171. Parameters Nos.5170 and 5171 can specify variable numbers within the range of #100 to #149. Parameter No.5170: Specifies the number of the common variable to which the number of retractions

made during cutting is output.

Parameter No.5171: Specifies the number of the common variable to which the number of retractions

made in response to the overload signal received during cutting is output.

The numbers of retraction output to common variables are cleared by G83 while

- Positioning to hole position

When positioning the axes to hole position (axes X and Y when XY plane is used) in Small-hole peck drilling cycle, the machining time can be shortened by the spindle is not stopped. This function is enabled by the parameter SPH(No.5108#6).

Limitation

- Subprogram call

In the canned cycle mode, specify the subprogram call command M98P_ in an independent block.

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

G84 X_ Y_ Z_ R_ P_ F_ K_ ;

K_ : Number of repeats (if required)

G84 (G98)

G84 (G99)

Point R

Point Z

Spindle CCW

Spindle CW

Initial level

Point R

Point Z

Spindle CCW

Spindle CW

Point R level

CAUTION

machine until the return operation is completed.

Example

M03 S2000 ; Cause the spindle to start rotating. M□□ ; Specifies the small-hole peck drilling cycle mode. G90 G99 G83 X_ Y_ Z_ R_ Q_ F_ I_ K_ P_ ; Specifies the small-hole peck drilling cycle. X_ Y_ ; Drills at another position. : : G80 ; Cancels the small-hole peck drilling cycle mode.

5.1.8 Tapping Cycle (G84)

This cycle performs tapping. In this tapping cycle, when the bottom of the hole has been reached, the spindle is rotated in the reverse direction.

Format

X_ Y_ : Hole position data Z_ : The distance from point R to the bottom of the hole R_ : The distance from the initial level to point R level P_ : Dwell time F_ : Cutting feedrate

Explanation

- Operations

Tapping is performed by rotating the spindle clockwise. When the bottom of the hole has been reached, the spindle is rotated in the reverse directi on for retraction. This operation creates t hreads.

Feedrate overrides are ignored during tapping. A feed hold does not stop the

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

- Spindle rotation

Before specifying G84, use an auxiliary function (M code) to rotate the spindle. If drilling is continuously performed with a small value specified for the distance between the hole position and point R level or between the initial level and point R level, the normal spindle speed may not be reached at the start of hole cutting op eration. In this case, insert a d well before each drilling operation with G04 to delay the operation, without specifying the number of repeats for K. For some machines, the above note may not be considered. Refer to the manual provided by the machine tool builder.

- Auxiliary function

When the G84 command and an M code are specified in the same block, the M code is ex ecuted at the time of the first positioning operation. When the K is used to specify number of repeats, the M code is executed for the first hole only; for the second and subsequent holes, the M code is not executed.

- Tool length compensation

When a tool length compensation (G43, G44, or G49) is specified in the canned cycle for drilling, the offset is applied after the time of positioning to point R.

Limitation

- Axis switching

Before the drilling axis can be changed, the canned cycle for drilling must be canceled.

- Drilling

In a block that does not contain X, Y, Z, R, or any other axes, drilling is not performed.

- P

Specify P in blocks that perform drilling. If it is specified in a block that does not perform drilling, it cannot be stored as modal data.

- Cancel

Do not specify a G code of the 01 group (G00 to G03) and G84 in a single block. Otherwise, G84 will be canceled.

Example

M3 S100 ; Cause the spind le to start rotating. G90 G99 G84 X300.0 Y-250.0 Z-150.0 R-120.0 P300 F120.0 ; Position, drill h ole 1, then return to point R. Y-550.0; Position, drill hole 2, then return to point R. Y-750.0; Position, drill hole 3, then return to point R. X1000.0; Position, drill hole 4, then return to point R. Y-550.0; Position, drill hole 5, then return to point R. G98 Y-750.0; Position, drill hole 6, then return to the initial level. G80 G28 G91 X0 Y0 Z0 ; Return to the reference position M5 ; Cause the spindle to stop rotating.

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

G85 X_ Y_ Z_ R_ F_ K_ ;

K_ : Number of repeats (if required)

G85 (G98)

G85 (G99)

Point R

Point Z

Initial level

Point R

Point Z

Point R level

5.1.9 Boring Cycle (G85)

This cycle is used to bore a hole.

Format

X_ Y_ : Hole position data Z_ : The distance from point R to the bottom of the hole R_ : The distance from the initial level to point R level F_ : Cutting feed rate

Explanation

- Operations

After positioning along the X- and Y- axes, rapid traverse is performed to point R. Drilling is performed from point R to point Z. When point Z has been reached, cutting feed is performed to return to point R.

- Spindle rotation

Before specifying G85, use an auxiliary function (M code) to rotate the spindle.

- Auxiliary function

When the G85 command and an M code are specified in the same block, the M code is executed at t he time of the first positioning operation. When K is used to specify the number of repeats, the M code is executed for the first hole only; for the second and subsequent holes, the M code is not executed.

- Tool length compensation

When a tool length compensation (G43, G44, or G49) is specified in the canned cycle for drilling, the offset is applied after the time of positioning to point R.

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

G86 X_ Y_ Z_ R_ F_ K_ ;

K_ : Number of repeats (if required)

G86 (G98)

G86 (G99)

Point R

Point Z

Initial level

Spindle stop

Spindle CW

Point R

Point Z

Point R level

Spindle stop

Spindle CW

Limitation

- Axis switching

Before the drilling axis can be changed, the canned cycle for drilling must be canceled.

- Drilling

In a block that does not contain X, Y, Z, R, or any other axes, drilling is not performed.

- Cancel

Do not specify a G code of the 01 group (G00 to G03) and G85 in a single block. Otherwise, G85 will be canceled.

- Tool offset

In the canned cycle mode for drilling, tool offsets are ignored.

Example

M3 S100 ; Cause the spindle to start rotating. G90 G99 G85 X300.0Y-250.0Z-150.0R-120.0F120.0; Position, drill hole 1, then return to point R. Y-550.0; Position, drill hole 2, then return to point R. Y-750.0; Position, drill hole 3, then return to point R. X1000.0; Position, drill hole 4, then return to point R. Y-550.0; Position, drill hole 5, then return to point R. G98 Y-750.0; Position, drill hole 6, then return to the initial level. G80 G28 G91 X0 Y0 Z0 ; Return to the reference position M5 ; Cause the spindle to stop rotating.

5.1.10 Boring Cycle (G86)

This cycle is used to bore a hole.

Format

X_ Y_ : Hole position data Z_ : The distance from point R to the bottom of the hole R_ : The distance from the initial l evel to point R level F_ : Cutting feed rate

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

Explanation

- Operations

After positioning along the X- and Y-axes, rapid traverse is performed to point R. Drilling is performed from point R to point Z. When the spindle is stopped at the bottom of the hole, the tool is retracted in rapid traverse.

- Spindle rotation

Before specifying G86, use an auxiliary function (M code) to rotate the spindle. If drilling is continuously performed with a small value specified for the distance between the hole position and point R level or between the initial level and point R level, the normal spindle speed may not be reached at the start of hole cutting operation. In this case, insert a dwell before each drilling operation with G04 to delay the operation, without specifying the number of repeats for K. For some machines, the above no te may not be consid ered. Refer to the manual provided by the machine tool builder.

- Auxiliary function

When the G86 command and an M code are specified in the same block, the M code is ex ecuted at the time of the first positioning operation. When K is used to specify the n umber of repeats, the M code is executed for the first hole only; for the second and subsequent holes, the M code is not executed.

- Tool length compensation

When a tool length compensation (G43, G44, or G49) is specified in the canned cycle for drilling, the offset is applied after the time of positioning to point R.

Limitation

- Axis switching

Before the drilling axis can be changed, the canned cycle for drilling must be canceled.

- Drilling

In a block that does not contain X, Y, Z, R, or any other axes, drilling is not performed.

- Cancel

Do not specify a G code of the 01 group (G00 to G03) and G86 in a single block. Otherwise, G86 will be canceled.

- Tool offset

In the canned cycle mode for drilling, tool offsets are ignored.

Example

M3 S2000 ; Cause the spindle to start rotating. G90 G99 G86 X300.0Y-250.0Z-150.0R-100.0F120.0; Position, drill h ole 1, then return to point R. Y-550.0; Position, drill hole 2, then return to point R. Y-750.0; Position, drill hole 3, then return to point R. X1000.0; Position, drill hole 4, then return to point R. Y-550.0; Position, drill hole 5, then return to point R. G98 Y-750.0; Position, drill hole 6, then return to the initial level. G80 G28 G91 X0 Y0 Z0 ; Return to the reference position M5 ; Cause the spindle to stop rotating.

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

G87 X_ Y_ Z_ R_ Q_ P_ F_ K_ ;

K_ : Number of repeats (if required)

G87 (G98)

G87 (G99)

Shift amount q

Spindle orientation

Tool

Spindle CW

Initial level

Point R

Point Z

OSS

Spindle CW

5.1.11 Back Boring Cycle (G87)

This cycle performs accurate boring.

Format

X_ Y_ : Hole position data Z_ : The distance from point R to the bottom of the hole R_ : The distance from the initial level to point R

Q_ : Shift amount at the bottom of a hole P_ : Dwell time at the bottom of a hole F_ : Cutting feed rate

Not used

Explanation

After positioning along the X- and Y-axes, the spindle is stopped at the fixed rotation position. The tool is moved in the direction opposite to the tool nose, positioning (rapid traverse) is performed to the bottom of the hole (point R). The tool is then shifted in the direction of the tool nose and the spindle is rotated clockwise. Boring is performed in the positive direction along the Z-axis until point Z is reached. At point Z, the spindle is stopped at the fixed rotation position again, the tool is shifted in the direction opposite to the tool nose, then the tool is returned to the initial level. The tool is then shifted in the direction of the tool nose and the spindle is rotated clockwise to proceed to the next block operation.

- Spindle rotation

Before specifying G87, use an auxiliary function (M code) to rotate the spindle. If drilling is continuously performed with a small value specified for the distance between the hole position and point R level or between the initial level and point R level, the normal spindle speed may not be reached at the start of hole cutting operation. In this case, insert a dwell before each drilling operation with G04 to delay the operation, without specifying the number of repeats for K. For some machines, the above note may not be considered. Refer to the manual provided by the machine tool builder.

- Auxiliary function

When the G87 command and an M code are specified in the same block, the M code is ex ecuted at the time of the first positioning operation. When K is used to specify the n umber of repeats, the M code is executed for the first hole only; for the second and subsequent holes, the M code is not executed.

- Tool length compensation

When a tool length compensation (G43, G44, or G49) is specified in the canned cycle for drilling, the offset is applied after the time of positioning to point R.

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

CAUTION

for G73 and G83.

Limitation

- Axis switching

Before the drilling axis can be changed, the canned cycle for drilling must be canceled.

- Drilling

In a block that does not contain X, Y, Z, R, or any additional axes, drilling is not performed.

- P/Q

Be sure to specify a positive value in Q. If Q is specified with a n egative value, the sign is ignored. Set the direction of shift in the parameter No. 5148. Specify P and Q in a block that performs drilling. If they are specified in a block that does not perform drilling, they are not stored as modal data.

Q (shift at the bottom of a hole) is a modal value retained in canned cycles for

drilling. It must be specified carefully because it is also used as the depth of cut

- Cancel

Do not specify a G code of the 01 group (G00 to G03) and G87 in a single block. Otherwise, G87 will be canceled.

- Tool offset

In the canned cycle mode for drilling, tool offsets are ignored.

Example

M3 S500 ; Cause the spindle to start rotating. G90 G87 X300.0 Y-250.0 Position, bore hole 1. Z-150.0 R-120.0 Q5.0 Orient at the initial level, then shift by 5 mm. P1000 F120.0 ; Stop at point Z for 1 s. Y-550.0 ; Position, drill hole 2. Y-750.0 ; Position, drill hole 3. X1000.0 ; Position, drill hole 4. Y-550.0 ; Position, drill hole 5. Y-750.0 ; Position, drill hole 6 G80 G28 G91 X0 Y0 Z0 ; Return to the reference position M5 ; Cause the spindle to stop rotating.

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

G88 X_ Y_ Z_ R_ P_ F_ K_ ;

K_ : Number of repeats (if required)

G88 (G98)

G88 (G99)

Spindle CW

Initial level

Point R

Point Z

Spindle stop after dwell

Spindle CW

Point R level

Point R

Point Z

Spindle stop after dwell

5.1.12 Boring Cycle (G88)

This cycle is used to bore a hole.

Format

Explanation

- Operations

After positioning along the X- and Y-axes, rapid traverse is performed to point R. Boring is performed from point R to point Z. When boring is completed, a dwell is performed at the bottom of the hole, then the spindle is stopped and enters the hold state. At this time, you can switch to the manual mode and move the tool manually. Any manual operations are available; it is desirable to finally retract the tool from the hole for safety, though. At the restart of machining in the DNC operation or memory mode, the tool returns to the initial level or point R level according to G98 or G99 and the spindle rotates clockwise. Then, operation is restarted according to the programmed commands in the next block.

- Spindle rotation

Before specifying G88, use an auxiliary function (M code) to rotate the spindle.

- Auxiliary function

When the G88 command and an M code are specified in th e same block, the M code is executed at the time of the first positioning operation. When K is used to specify the number of repeats, the M code is executed for the first hole only; for the second and subsequent holes, the M code is not executed.

- Tool length compensation

When a tool length compensation (G43, G44, or G49) is specified in the canned cycle for drilling, the offset is applied after the time of positioning to point R.

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

Limitation

- Axis switching

Before the drilling axis can be changed, the canned cycle for drilling must be canceled.

- Drilling

In a block that does not contain X, Y, Z, R, or any other axes, drilling is not performed.

- P

Specify P in blocks that perform drilling. If it is specified in a block that does not perform drilling, it cannot be stored as modal data.

- Cancel

Do not specify a G code of the 01 group (G00 to G03) and G88 in a single block. Otherwise, G88 will be canceled.

- Tool offset

In the canned cycle mode for drilling, tool offsets are ignored.

Example

M3 S2000 ; Cause the spindle to start rotating. G90 G99 G88 X300.0 Y-250.0 Z-150.0 R-100.0 P1000 F120.0 ; Position, drill hole 1, return to point R then stop at the bottom of the hole

for 1 s. Y-550.0 ; Position, drill hole 2, then return to point R. Y-750.0 ; Position, drill hole 3, then return to point R. X1000.0 ; Position, drill hole 4, then return to point R. Y-550.0 ; Position, drill hole 5, then return to point R. G98 Y-750.0 ; Position, drill hole 6, then return to the initial level. G80 G28 G91 X0 Y0 Z0 ; Return to the reference position M5 ; Cause the spindle to stop rotating.

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

G89 X_ Y_ Z_ R_ P_ F_ K_ ;

K_ : Number of repeats (if required)

G89 (G98)

G89 (G99)

Point R

Point Z

Initial level

Point R

Point Z

Point R level

5.1.13 Boring Cycle (G89)

This cycle is used to bore a hole.

Format

Explanation

- Operations

This cycle is almost the same as G85. The difference is that this cycle performs a d well at the bottom of the hole.

- Spindle rotation

Before specifying G89, use an auxiliary function (M code) to rotate the spindle.

- Auxiliary function

When the G89 command and an M code are specified in the same block, the M code is ex ecuted at the time of the first positioning operation. When K is used to specify the number of repeats, the M code is executed for the first hole only; for the second and subsequent holes, the M code is not executed.

- Tool length compensation

When a tool length compensation (G43, G44, or G49) is specified in the canned cycle for drilling, the offset is applied after the time of positioning to point R.

Limitation

- Axis switching

Before the drilling axis can be changed, the canned cycle for drilling must be canceled.

- Drilling

In a block that does not contain X, Y, Z, R, or any other axes, drilling is not performed.

- P

Specify P in blocks that perform drilling. If it is specified in a block that does not perform drilling, it cannot be stored as modal data.

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

G80 ;

- Cancel

Do not specify a G code of the 01 group (G00 to G03) and G89 in a single block. Otherwise, G89 will be canceled.

- Tool offset

In the canned cycle mode for drilling, tool offsets are ignored.

Example

M3 S100 ; Cause the spindle to start rotating. G90 G99 G89 X300.0 Y-250.0 Z-150.0 R-120.0 P1000 F120.0 ; Position, drill h ole 1, return to point R then stop at the bottom of the hole

5.1.14 Canned Cycle Cancel for Drilling (G80)

G80 cancels canned cycles for drilling.

Format

Explanation

All canned cycles for drilling are canceled to perform normal operation. Point R and point Z are cleared. Other drilling data is also canceled (cleared).

Example

M3 S100 ; Cause the spindle to start rotating. G90 G99 G88 X300.0 Y-250.0 Z-150.0 R-120.0 F120.0 ; Position, drill h ole 1, then return to point R. Y-550.0 ; Position, drill hole 2, then return to point R. Y-750.0 ; Position, drill hole 3, then return to point R. X1000.0 ; Position, drill hole 4, then return to point R. Y-550.0 ; Position, drill hole 5, then return to point R. G98 Y-750.0 ; Position, drill hole 6, then return to the initial level. G80 G28 G91 X0 Y0 Z0 ; Return to the reference position , canned cycle cancel M5 ; Cause the spindle to stop rotating.

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

Offset value +200.0 is set in offset No. 11, +190.0 is set in offset No.15, and +150.0 is set in offset No.31

Program example

;

N001

G92 X0 Y0 Z0;

Coordinate setting at reference position

N002

G90 G00 Z250.0 T11 M6;

Tool change

N003

G43 Z0 H11;

Initial level, tool length compensation

N004

S30 M3;

Spindle start

N005

G99 G81 X400.0 Y-350.0 Z-153.0 R-97.0 F120;

Positioning, then #1 drilling

N006

Y-550.0;

Positioning, then #2 drilling and point R level return

N007

G98 Y-750.0;

Positioning, then #3 drilling and initial level return

N008

G99 X1200.0;

Positioning, then #4 drilling and point R level return

N009

Y-550.0;

Positioning, then #5 drilling and point R level return

N010

G98 Y-350.0;

Positioning, then #6 drilling and initial level return

N011

G00 X0 Y0 M5;

Reference position return, spindle stop

N012

G49 Z250.0 T15 M6;

Tool length compensation cancel, tool change

N013

G43 Z0 H15;

Initial level, tool length compensation

N014

S20 M3;

Spindle start

N015

G99 G82 X550.0 Y-450.0 Z-130.0 R-97.0 P300 F70 ;

Positioning, then #7 drilling, point R level return

N016

G98 Y-650.0;

Positioning, then #8 drilling, initial level return

N017

G99 X1050.0;

Positioning, then #9 drilling, point R level return

N018

G98 Y-450.0;

Positioning, then #10 drilling, initial level return

N019

G00 X0 Y0 M5;

Reference position return, spindle stop

N020

G49 Z250.0 T31 M6;

Tool length compensation cancel, tool change

N021

G43 Z0 H31;

Initial level, tool length compensation

N022

S10 M3;

Spindle start

N023

G85 G99 X800.0 Y-350.0 Z-153.0 R47.0 F50;

Positioning, then #11 drilling, point R level return

return

N025

G28 X0 Y0 M5;

Reference position return, spindle stop

N026

G49 Z0;

Tool length compensation cancel

N027

M0;

Program stop

5.1.15 Example for Using Canned Cycles for Drilling

N024 G 91 Y-200.0 K2; Positioning, then #12, 13 drilling, point R level

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

400

150

250

150

T 11

T 15

T 31

#11

#13

#12

#10

#9#6#5

#1 to 6 Drilling of a 10 mm diameter hole #7 to 10 Drilling of a 20 mm diameter hole #11 to 13 Boring of a 95 mm diameter hole (depth 50 mm)

190

200

150

250

100

350

200

Program using tool length offset and canned cycles

Reference position

Retract position

Initial level

200

Fig. 5.1.15 (a) Example for using canned cycles for drilling

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

Operation 1

Feed

Initial level

Operation 2

Operation 6

Point R level

Operation 5

Operation 3

Rapid traverse

Operation 4

5.1.16 Reducing of Waiting Time of Spindle Speed Arrival in the

Canned Cycle for Drilling

Overview

When bit 7 (SAC) of parameter No.11507 is set to 1, this function checks the spindle speed arrival signal SAR without waiting time that is set a parameter No.3740 at starting of drilling since the second times in canned cycle for drilling. Also, this function is available rapid traverse to the initial lever and block overlap in rapid traverse of positioning to a next position of hole in canned cycle for drilling. These improvements reduce the cycle time.

Explanation

When bit 7 (SAC) of parameter No.11507 is set to 0, the spindle speed arrival signal SAR i s checked after waiting for elapsing time that is set parameter No.3740 for each drilling. When bit 7 (SAC) of parameter No.11507 is set to 1, in drilling since the second times, the spindle speed arrival signal SAR is checked immediately that is set parameter No.3740 is not related. However, when command and state are the following conditions, CNC is waiting for elapsing time that is set parameter No.3740 before checking the spi ndle speed arrival signal SAR.

- Canned cycle for drilling is canceled by G80 or G code of group 01.

- S code is commanded.

- G code of canned cycle for drilling is commanded which is different modal G code.

- The spindle speed arri val signal SAR becomes “0”.

- CNC becomes reset state.

Fig. 5.1.16 (a) Operation sequence of canned cycle for drilling

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

time for SAR

traverse

G73

High-speed peck drilling cycle

available

Left-handed rigid tapping cycle

G76

Fine boring cycle

available

G81

Drilling cycle, spot drilling Cycle

available

G82

Drilling cycle, counter boring Cycle

available

G83

Peck drilling cycle

available

Rigid tapping cycle

G85

Boring cycle

available

G86

Boring cycle

available

G87

Back boring cycle

available

G88

Boring cycle

available

G89

Boring cycle

available

time for SAR

traverse

G84.2

Rigid tapping cycle

available

G84.3

Left-handed rigid tapping cycle

available

Operation at the bottom of a hole

drilling cycle

counter boring cycle

G83

Intermittent feed

Rapid traverse

Peck drilling cycle

G85

Cutting feed

Boring cycle

G86

Cutting feed

Spindle stop

Rapid traverse

Boring cycle

G89

Cutting feed

Dwell

Cutting feed

Boring cycle

Applied of speed-up of each command

Table of canned cycle for drilling (Series 0i format)

G code Function

Reducing of waiting

Block overlap in rapid

G74

G84

Left-hand tapping cycle

Tapping cycle

- available

Table of canned cycle for drilling (Series 15 format)

G code Function

Reducing of waiting

5.2 CANNED CYCLE OVERLAP FOR DRILLING

Block overlap in rapid

Overview

With this function, during the canned cycle mode for drilling, the command can overlap with the next block for the fixed time of the time constant of the acceleration/deceleration after interpolation. This speeds up the operation of the canned cycle for drilling and shortens the cycle time.

Explanation

- Supported canned cycle for drilling

Table5.2 (a) Canned cycle for drilling shows canned cycle for drilling supported by this function.

Table5.2 (a) Canned cycle for drilling

G code Drilling

G73 Intermittent feed - Rapid traverse

G81 Cutting feed - Rapid traverse

G82 Cutting feed Dwell Rapid traverse

Retraction Application

High-speed peck

Drilling cycle, spot

Drilling cycle,

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

(When canned cycle for drilling is canceled at point F, no overlap is done at point F.)

G73 (G98)

G73 (G99)

Point R

Point Z

Initial level

Point R level

Point R

Point Z

A B D1

D2 F A

C2 E C1

- Operations in which overlap is valid in each cycle

High-Speed Peck Drilling Cycle (G73)

q : Depth of cut d : Return value Point A : Overlap is valid. (When bit 0 (DPS) of parameter No.1681 is set to 1, overlap is invalid.) Point B : Overlap is valid. (When bit 1 (DRL) of parameter No.1681 is set to 1, overlap is invalid.) Point C1, C2 : Overlap is valid. (When bit 4 (DQL) of parameter No.1681 is set to 1, overlap is invalid.)

(When overlap is done at point C1 and point C2, the actual depth of cut is smaller than specified amount q.)

Point D1, D2 : Overlap is valid. (When bit 2 (DRV) of parameter No.1681 is set to 1, overlap is invalid.)

(When overlap is done at point D1 and point D2, the actual retur n v al ue is smaller than specified

amount d.) Point E : Overlap is valid. (When bit 5 (DZL) of parameter No.1681 is set to 1, overlap is invalid.) Point F : Overlap is valid. (When bit 0 (DPS) of parameter No.1681 is set to 1, overlap is invalid.)

Fig. 5.2 (a) High-Speed Peck Drilling Cycle (G73)

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

(When canned cycle for drilling is canceled at point D, no overlap is done at point D.)

G81 (G98)

G81 (G99)

Initial level

Point R

Point Z

Point R level

Point R

Point Z

(When canned cycle for drilling is canceled at point D, no overlap is done at point D.)

G82 (G98)

G82 (G99)

Initial level

Point R

Point Z

Point R level

Point R

Point Z

B D A B D C C C C

Drilling Cycle, Spot Drilling (G81)

Point A : Overlap is valid. (When bit 0 (DPS) of parameter No.1681 is set to 1, overlap is invalid.) Point B : Overlap is valid. (When bit 1 (DRL) of parameter No.1681 is set to 1, overlap is invalid.) Point C : Overlap i s valid. (When bit 5 (DZL) of parameter No.1681 is set to 1, overlap is invalid.) Point D : Overlap i s valid. (When bit 0 (DPS) of parameter No.1681 is set to 1, overlap is invalid.)

Fig.5.2 (b) Drilling Cycle, Spot Drilling (G81)

Drilling Cycle Counter Boring Cycle (G82)

P : Dwell time Point A : Overlap is valid. (When bit 0 (DPS) of parameter No.1681 is set to 1, overlap is invalid.) Point B : Overlap is valid. (When bit 1 (DRL) of parameter No.1681 is set to 1, overlap is invalid.) Point C : Overlap i s valid. (When bit 5 (DZL) of parameter No.1681 is set to 1, overlap is invalid.)

(When dwell is commanded, no overlap is done at point C.)

Point D : Overlap i s valid. (When bit 0 (DPS) of parameter No.1681 is set to 1, overlap is invalid.)

Fig.5.2 (c) Drilling Cycle Counter Boring Cycle (G82)

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

(When canned cycle for drilling is canceled at point G, no overlap is done at poi nt G.)

G83 (G98)

G83 (G99)

Point R

Point Z

Initial level

Point R

Point Z

Point R level

A B D1

E2 G A

C2 F C1

Peck Drilling Cycle (G83)

q : Depth of cut d : In the second and subsequent cuts, rapid traverse changes to cutting feed at a position d befor e

the end point of the last cut. Point A : Overlap is valid. (When bit 0 (DPS) of parameter No.1681 is set to 1, overlap is invalid.) Point B : Overlap is valid. (When bit 1 (DRL) of parameter No.1681 is set to 1, overlap is invalid.) Point C1, C2 : Overlap is valid. (When bit 4 (DQL) of parameter No.1681 is set to 1, overlap is invalid.)

(When overlap is done at point C1 and point C2, the actual depth of cut is smaller than specified amount q.)

Point D1, D2 : Overlap is valid. (When bit 2 (DRV) of parameter No.1681 is set to 1, overlap is invalid.)

(When overlap is done at point D1 and point D2, the direction of movement is reversed before the

tool reaches point R.) Point E1, E2 : Overlap is valid. (When bit 3 (DFW) of parameter No.1681 is set to 1, overlap is i nv al id.) Point F : Overlap is valid. (When bit 5 (DZL) of parameter No.1681 is s et to 1, overlap is invalid.) Point G : Overlap is valid. (When bit 0 (DPS) of parameter No.1681 is set to 1, overlap is invalid.)

Fig.5.2 (d) Peck Drilling Cycle (G83)

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

(When canned cycle for drilling is canceled at point E, no overlap is done at poi nt E.)

G85 (G98)

G85 (G99)

Point R

Point Z

Initial level

Point R

Point Z

Point R level

Point B : Overlap is valid. (When bit 1 (DRL) of parameter No.1681 is set to 1, overlap is invalid.)

G86 (G98)

G86 (G99)

Point R

Point Z

Initial level

Spindle stop

Spindle CW

Point R

Point Z

Point R level

Spindle stop

Spindle CW

A D B C A B E

Boring Cycle (G85)

Point A : Overlap is valid. (When bit 0 (DPS) of parameter No.1681 is set to 1, overlap is invalid.) Point B : Overlap is valid. (When bit 1 (DRL) of parameter No.1681 is set to 1, overlap is invalid.) Point C : Overlap i s valid. (When bit 1 (DRL) of parameter No.1681 is set t o 1, overlap is invalid.) Point D : Overlap i s valid. (When bit 0 (DPS) of parameter No.1681 is set to 1, overlap is invalid.)

(When canned cycle for drilling is canceled at point D, no overlap is done at point D.)

Point E : Overlap is valid. (When bit 1 (DRL) of parameter No.1681 or DPS(No.1681#0) is set to 1, overlap

is invalid.)

Fig.5.2 (e) Boring Cycle (G85)

Boring Cycle (G86)

Point A : Overlap is valid. (When bit 0 (DPS) of parameter No.1681 is set to 1, overlap is invalid.)

Fig.5.2 (f) Boring Cycle (G86)

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

(When canned cycle for drilling is canceled at point E, no overlap is done at point E.)

G89 (G98)

G89 (G99)

Point R

Point Z

Initial level

Point R

Point Z

Point R level

A B C D A B E

Boring Cycle (G89)

P : Dwell time Point A : Overlap is valid. (When bit 0 (DPS) of parameter No.1681 is set to 1, overlap is invalid.) Point B : Overlap is valid. (When bit 1 (DRL) of parameter No.1681 is set to 1, overlap is invalid.) Point C : Overlap i s valid. (When bit 1 (DRL) of parameter No.1681 is set t o 1, overlap is invalid.) Point D : Overlap i s valid. (When bit 0 (DPS) of parameter No.1681 is set to 1, overlap is invalid.)

(When canned cycle for drilling is canceled at point D, no overlap is done at point D.)

Point E : Overlap is valid. (When bit 0 (DPS) or bit 1 (DRL) of parameter No.1681 is set to 1, overlap is

invalid.)

Fig.5.2 (g) Boring Cycle (G89)

5.3 RIGID TAPPING

The tapping cycle (G84) and left-handed tapping cycle (G74) may be performed in standard mode or rigid tapping mode. In standard mode, the spindle is rotated and stopped along with a movement along the tapping axis using auxiliary functions M03 (rotating the spindle clockwise), M04 (rotating the spindle counterclockwise), and M05 (stopping the spindle) to perform tapping. In rigid mode, tapping is performed by controlling the spindle motor as if it were a servo motor and by interpolating between the tapping axis and spindle. When tapping is performed in rigid mode, the spindle rotates one turn every time a certain feed (thread lead) which takes place along the tapping axis. This operation does not vary even during acceleration or deceleration. Rigid mode eliminates the need to use a floating tap required in the standard tapping mode, thus allowing faster and more precise tapping.

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

The rigid tapping mode can be specified using one of three methods.

L_ : Number of repeats (if required)

G84 (G98)

G84 (G99)

Initial level

Point R

Spindle stop

Spindle CW

Point Z

Point R level

Operation 2

Operation 1

Operation 6

Operation 3

Operation 4

Operation 5

Spindle stop

Spindle CCW

Spindle stop

Point R

Spindle CW

Point Z

Point R level

Spindle stop

Spindle CCW

Spindle stop

5.3.1 Rigid Tapping (G84)

When the spindle motor is controlled in rigid mode as if it were a servo motor, a tapping cycle can be sped up.

Format

- Specification of M29S_ in a tapping block.

G84 X_ Y_ Z_ R_ P_ F_ K_ M29 S_ ;

- Specification of M29S_ before the tapping block.

M29 S_ ; G84 X_ Y_ Z_ R_ P_ F_ K_ ;

- Enabling rigid tapping to be performed without specifying M29S_ (bit 0 (G84) of parameter No. 5200 set to 1).

G84 X_ Y_ Z_ R_ P_ F_ K_ ;

X_ Y_ : Hole position data Z_ : The distance from point R to the bottom of the hole and the position of the

bottom of the hole

R_ : The distance from the initial level to point R level P_ : Dwell time at the bottom of the hole and at point R when a return is made F_ : Cutting feedrate K_ : Number of repeats (if required)

G84.2 X_ Y_ Z_ R_ P_ F_ L_ ;

(Series 15 format)

Explanation

After positioning along the X- and Y-axes, rapid traverse is performed to point R. Tapping is performed from point R to point Z. When tapping is completed, the spindle is stopped and a dwell is performed. The spindle is then rotated in the reverse direction, the tool is retracted to point R, then the spindle is stopped. Rapid traverse to initial level is then performed. While tapping is being performed, the feedrate override and spindle override are assumed to be 100%. Feedrate override can be enabled by sett ing, however.

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

CLR (bit 5 of parameter No.3402)

C09 (bit 1 of parameter No.3407)

G code 0 -

G84/G74

1 0 G80 1 1

G84/G74

- Thread lead

In feed-per-minute mode, the thread lead is obtained from the expression, feedrate ÷ spindle speed. In feed-per-revolution mode, the thread lead equals the feedrate speed.

- Tool length compensation

If a tool length compensation (G43, G44, or G49) is specified in the canned cycle, the offset is applied at the time of positioning to point R.

- FANUC Series 15 format command

Rigid tapping can be performed using FANUC Series 15 format commands. The rigid tapping sequence (including data transfer to and from the PMC), Limitation, and the like are the same as described i n this chapter.

- Acceleration/deceleration after interpolati on

Linear or bell-shaped acceleration/deceleratio n can be applied.

- Look-ahead acceleration/deceleration before interpolation

Look-ahead acceleration/deceleration before interp olation is invalid.

- Override

Various types of override functions are invalid. The following override functions can be enabled by setting corresponding parameters:

- Extraction override

- Override signal Details are given later.

- Dry run

Dry run can be executed also in G84 (G74). When dry run is executed at the feedrate for the drilling axis in G84 (G74), tapping is performed according to the feedrate. Note that the spindle speed becomes faster at a higher dry run feedrate.

- Machine lock

Machine lock can be executed also in G84 ( G74). When G84 (G74) is executed in the machine lock state, the tool does not move along the drilling axis. Therefore, the spindle does not also rotate.

- Reset

When a reset operation is performed during rigid tapping, rigid tapping is stopped and G code is set as Table 5.3.1 (a) according to bit 5 (CLR) of parameter No.3402, bit 1 (C09) of No.3407. In restarting operation with G84/G74, command G80 if necessary.

Table 5.3.1 (a)

- Interlock

Interlock can also be applied in G84 (G74).

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

- Feed hold and single block

Feed hold and single block are disabled in rigid tapping. When bit 6 (FHD) of parameter No.5200 is 1, feed hold and single block are enabled.

- Feed hold

- Bit 6 (FHD) of p arameter No.5200 = 0 If feed hold is applied between Operation 3 and Operation 5, the feed hold lamp turns on

immediately, but the tool decelerates and stops after moving to Operation 6. If feed hold is applied during Operation 1, Operation 2, and Operation 6, CNC becomes feed hold state and the tool decelerates and stops.

- Bit 6 (FHD) of p arameter No.5200 = 1 If feed hold is applied between Op eration 1 an d Operation 6, CNC beco mes feed hold state and

the tool decelerates and stops.

- Single block

- Bit 6 (FHD) of p arameter No.5200 = 0 Single block stop points are the end points of Operation 1, Operation 2, and Operation 6.

- Bit 6 (FHD) of p arameter No.5200 = 1 Single block stop points are the end points of each Operation.

- Manual feed

For rigid tapping by manual handle feed, see the section "Rigid Tapping by Manual Handle" in Operator’s manual (Common to Lathe system/Machining center system) / B-64694EN. With other manual operations, rigid tapping cannot be performed.

- Backlash compensation

In the rigid tapping mode, backlash compensation is applied to compensate the lost motion when the spindle rotates clockwise or counterclockwise. Set the amount of backlash in parameters Nos. 5321 to

5324. Along the drilling axis, backlash compensation has been applied regardless of whether the rigid tap.

Limitation

- Axis switching

Before the drilling axis can be changed, the canned cy cle must be canceled. If th e drilling ax is is changed in rigid mode, alarm PS0206 is issued.

- S command

- If a speed higher than the maximum speed for the gear being used is specified, alarm PS0200 is issued.

- When the rigid tapping canned cycle is cancelled, the S command used for rigid tapping is cleared to S0.

- Distribution amount for the spindle

The maximum distribution amount is as follows (displayed on diagnosis data No. 451):

- For a serial spindle: 32,767 pulses per 8 ms

This amount is changed according to the gear ratio setting for the position coder or rigid tapping command. If a setting is made to exceed the upper limit, alarm PS020 2 is issued.

- F command

If a value exceeding the upper limit of cutting feedrate is specified, alarm PS0011 is issued.

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

Metric input

Inch input

Remarks

G94

1 mm/min

0.01 inch/min

Decimal point programming allowed

G95

0.01 mm/rev

0.0001 inch/rev

Decimal point programming allowed

- Unit of F command

- M29

If an S command and axis movement are specified between M29 and G84, alarm PS0203 is issued. If M29 is specified in a tapping cycle, alarm PS0204 is i ssued.

- P

Specify P in a block that performs drilling. If P is specified in a no n-drilling block, it is not stored as modal data.

- Cancel

Do not specify a G code of the 01 group (G00 to G03 or G60 (when the bit 0 (MDL) of parameter No. 5431 is set to 1)) and G84 (G74) in a single block. Otherwise, G84 (G74) will be canceled.

- Tool offset

In the canned cycle mode, tool offsets are ignored.

- Program restart

A program cannot be restarted during rigid tapping.

- Subprogram call

In the canned cycle mode, specify the subprogram call command M98P_ in an independent block.

- Constant surface speed control

If rigid tapping is commanded during constant surface speed control, alarm (PS0200), ”ILLEGAL S CODE COMMAND” is issued. Command rigid tapping after canceling constant surface speed control.

- Positioning by optimum accelerations

Positioning by optimum accelerations is disabled during rigid tapping.

Example

Z-axis feedrate 1000 mm/min Spindle speed 1000 min Thread lead 1.0 mm <Programming of feed per minute> G94; Specify a feed-per-minute command. G00 X120.0 Y100.0 ; Positioning M29 S1000 ; Rigid mode specification G84 Z-100.0 R-20.0 F1000 ; Rigid tapping <Programming of feed per revolution> G95 ; Specify a feed-per-revolution command. G00 X120.0 Y100.0 ; Positioning M29 S1000 ; Rigid mode specification G84 Z-100.0 R-20.0 F1.0 ; Rigid tapping

-1

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

The rigid tapping mode can be specified using one of three methods.

L_ : Number of repeats (if required)

G74 (G98)

G74 (G99)

Initial level

Point R

Spindle stop

Spindle CCW

Point Z

Point R level

Operation 2

Operation 1

Operation 6

Operation 3

Operation 4

Operation 5

Spindle stop

Spindle CW

Spindle stop

Point R

Spindle CCW

Point Z

Point R level

Spindle stop

Spindle CW

Spindle stop

5.3.2 Left-Handed Rigid Tapping Cycle (G74)

When the spindle motor is controlled in rigid mode as if it were a servo motor, tapping cycles can be speed up.

Format

- Specification of M29S_ in a tapping block.

G74 X_ Y_ Z_ R_ P_ F_ K_ M29 S_ ;

- Specification of M29S_ before the tapping block.

M29 S_ ; G74 X_ Y_ Z_ R_ P_ F_ K_ ;

- Enabling rigid tapping to be performed without specifying M29S_ (bit 0 (G84) of parameter No. 5200 set to 1).

G74 X_ Y_ Z_ R_ P_ F_ K_ ;

X_ Y_ : Hole position data Z_ : The distance from point R to the bottom of the hole and the position of the

bottom of the hole

R_ : The distance from the initial level to point R level P_ : Dwell time at the bottom of the hole and at point R when return is made. F_ : Cutting feedrate K_ : Number of repeats (if required)

G84.3 X_ Y_ Z_ R_ P_ F_ L_ ;

(Series 15 format)

Explanation

After positioning along the X- and Y-axes, rapid traverse is performed to point R. Tapping is performed from point R to point Z. When tapping is completed, the spindle is stopped and a dwell is performed. The spindle is then rotated in the normal direction, the tool is retracted to point R, then the spindle is stopped. Rapid traverse to initial level is then performed. While tapping is being performed, the feedrate override and spindle override are assumed to be 100%. Feedrate override can be enabled by sett ing, however.

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

CLR (bit 5 of parameter No.3402)

C09 (bit 1 of parameter No.3407)

G code 0 -

G84/G74

1 0 G80 1 1

G84/G74

- Thread lead

In feed-per-minute mode, the thread lead is obtained from the expression, feedrate ÷ spindle speed. In feed-per-revolution mode, the thread lead equals the feedrate.

- Tool length compensation

If a tool length compensation (G43, G44, or G49) is specified in the canned cycle, the offset is applied at the time of positioning to point R.

- FANUC Series 15 format command

Rigid tapping can be performed using FANUC Ser ies 15 format commands. The rigid tapping sequence (including data transfer to and from the PMC) , Limitation, and the like are the same as described in this chapter.

- Acceleration/deceleration after interpolati on

Linear or bell-shaped acceleration/deceleratio n can be applied.

- Look-ahead acceleration/deceleration before interpolati on

Look-ahead acceleration/deceleration before interp olation is invalid.

- Override

Various types of override functions are invalid. The following override functions can be enabled by setting corresponding parameters:

- Extraction override

- Override signal Details are given later.

- Dry run

Dry run can be executed also in G84 (G74). When dry run is executed at the feedrate for the drilling axis in G84 (G74), tapping is performed according t o the feedrate. Note that the sp indle speed becomes faster at a higher dry run feedrate.

- Machine lock

Machine lock can be executed also in G84 (G74). When G84 (G74) is executed in the machine lock state, the tool does not move along the drilling axis. Therefore, the spindle does not also rotate.

- Reset

When a reset operation is performed during rigid tapping, rigid tapping is stopped and G code is set as Table 5.3.2 (a) according to bit 5 (CLR) of parameter No.3402, bit 1 (C09) of No.3407. In restarting operation with G84/G74, command G80 if necessary.

Table 5.3.2 (a)

- Interlock

Interlock can also be applied in G84 (G74).

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

Metric input

Inch input

Remarks

G94

1 mm/min

0.01 inch/min

Decimal point programming allowed

G95

0.01 mm/rev

0.0001 inch/rev

Decimal point programming allowed

- Feed hold and single block

Feed hold and single block are disabled in rigid tapping. When bit 6 (FHD) of parameter No.5200 is 1, feed hold and single block are enabled.

- Feed hold

- Bit 6 (FHD) of p arameter No.5200 = 0 If feed hold is applied between Operation 3 and Operation 5, the feed hold lamp turns on

- Bit 6 (FHD) of p arameter No.5200 = 1 If feed hold is applied between Op eration 1 an d Operation 6, CNC beco mes feed hold st ate and

the tool decelerates and stops.

- Single block

- Bit 6 (FHD) of p arameter No.5200 = 0 Single block stop points are the end points of Operation 1, Operation 2, and Operation 6.

- Bit 6 (FHD) of p arameter No.5200 = 1 Single block stop points are the end points of each Operation.

- Manual feed

For rigid tapping by manual handle feed, see the section "Rigid Tapping by Manual Handle." With other manual operations, rigid tapping cannot be performed.

- Backlash compensation

In the rigid tapping mode, backlash compensation is applied to compensate the lost motion when the spindle rotates clockwise or counterclockwise. Set the amount of backlash in parameters Nos. 5321 to

5324. Along the drilling axis, backlash compensation has been applied regardless of whether the rigid tap.

Limitation

- Axis switching

Before the drilling axis can be changed, the canned cycle must be canceled. If the drilling axis is changed in rigid mode, alarm PS0206 is issued.

- S command

- Specifying a ro tation speed exceeding the maximum speed for the gear used causes alarm PS0200.

- When the rigid tap pin g cann ed cy cl e is cancel led, the S command used for rigid tapping is cleared to S0.

- Distribution amount for the spindle

The maximum distribution amount is as follows (displayed on diagnosis data No. 451):

- For a serial spindle: 32,767 pulses per 8 ms

This amount is changed according to the gear ratio setting for the position coder or rigid tapping command. If a setting is made to exceed the upper limit, alarm PS020 2 is issued.

- F command

Specifying a value that exceeds the upper limit of cutting feedrate causes alarm PS0011.

- Unit of F command

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

- M29

Specifying an S command or axis movement between M29 and G84 causes alarm PS0203. Then, specifying M29 in the tapping cycle causes alarm PS0204.

- P

Specify P in a block that performs drilling. If P is specified in a no n-drilling block, it is not stored as modal data.

- Cancel

Do not specify a G code of the 01 group (G00 to G03 or G60 (when the bit 0 (MDL) of parameter No. 5431 is set to 1)) and G74 in a singl e block. Otherwise, G74 will be canceled.

- Tool offset

In the canned cycle mode, tool offsets are ignored.

- Subprogram call

In the canned cycle mode, specify the subprogram call command M98P_ in an independent block.

- Constant surface speed control

If rigid tapping is commanded during constant surface speed control, alarm (PS0200), ”ILLEGAL S CODE COMMAND” is issued. Command rigid tapping after canceling constant surface speed control.

- Positioning by optimum accelerations

Positioning by optimum accelerations is disabled during rigid tapping.

Example

Z-axis feedrate 1000 mm/min Spindle speed 1000 min Thread lead 1.0 mm <Programming for feed per minute> G94 ; Specify a feed-per-minute command. G00 X120.0 Y100.0 ; Positioning M29 S1000 ; Rigid mode specification G74 Z-100.0 R-20.0 F1000 ; Rigid tapping <Programming for feed per revolution> G95 ; Specify a feed-per-revolution command. G00 X120.0 Y100.0 ; Positioning M29 S1000 ; Rigid mode specification G74 Z-100.0 R-20.0 F1.0 ; Rigid tapping

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY

PROGRAMMING

G84 (or G74) X_ Y_ Z_ R_ P_ Q_ ,D_ F_ K_ ;

The distance from point R to the bottom of the

L_ : Number of repeats (if required)

G84, G74 (G98)

G84, G74 (G99)

Initial level

Point Z

Point R

qqq

<1>

<2>

Point R level

d = retraction distance

Point Z

Point R

<1>

<2>

Point R level

Initial level

Point Z

Point R

<1>

<2>

Point R level

d = cutting start distance

<3>

Point Z

Point R

<1>

<2>

Point R level

<3>

5.3.3 Peck Rigid Tapping Cycle (G84 or G74)

Tapping a deep hole in rigid tapping mode may be difficult due to chips sticking to the tool or increased cutting resistance. In such cases, the peck rigid tapping cycle is useful. In this cycle, cutting is performed several times until the bottom of the hole is reached. Two peck tapping cycles are available: High-speed peck tapping cycle and standard peck tapping cycle. These cycles are selected using the bit 5 (PCP) of parameter No. 5200.

Format

X_ Y_ : Hole position data Z_ :

hole and the position of the bottom of the hole

R_ : The distance from the initial level to point R

level

P_ : Dwell time at the bottom of the hole and at

point R when a return is made Q_ : Depth of cut for each cutting feed ,D_ : Clearance F_ : The cutting feedrate K_ : Number of repeats (if required)

G84.2 (or G84.3) X_ Y_ Z_ R_ P_ Q_ ,D_ F_ L_ ;

(Series 15 format)

• High-speed peck tapping cycle (Bit 5 (PCP) of parameter No. 5200=0) <1> The tool operates at a normal

cutting feedrate. The normal

time constant is used. <2> Ret raction can be overridden. The retraction time constant is used.

• Peck tapping cycle (Bit 5 (PCP) of parameter No.

5200=1) <1> The tool operates at a normal

cutting feedrate. The normal

time constant is used. <2> Ret raction can be overridden. The retraction time constant is

used. <3> Ret raction can be overridden. The normal time constant is

used.

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PROGRAMMING B-64694EN-2/01

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

CLR (bit 6 of parameter No.3402)

C09 (bit 1 of parameter No.3407)

G code 0 -

G84/G74 1 0

G80 1 1

G84/G74

Explanation

- High-speed peck tapping cycle

After positioning along the X- and Y-axes, rapid traverse is performed to point R. From point R, cutting is performed with depth Q (depth of cut for each cutting feed), then the tool is retracted by distance d. The bit 4 (DOV) of parameter No. 5200 specifies whether retraction can be overridden or not. When point Z has been reached, the spindle is stopped , then rotated in the reverse direction fo r retraction. Set the retraction distance, d, in ",D" command or parameter No. 5213.

- Peck tapping cycle

After positioning along the X- and Y-axes, rapid traverse is performed to point R level. From point R, cutting is performed with depth Q (depth of cut for each cutting feed), then a return is performed to point R. The bit 4 (DOV) of parameter No. 5200 specifies wh ether the retraction can be overridden or not. The moving of cutting feedrate F is performed from point R to a position distance d from the end point of the last cutting, which is where cutting is restarted. For this moving of cutting feedrate F, the specification of the bit 4 (DOV) of parameter No. 5200 is also valid. When point Z has been reached, the spindle is stopped, then rotated in the reverse direction for retraction. Set d (distance to the point at which cutting is started) in ",D" command or parameter No. 5213.

- Acceleration/deceleration after interpolati on

Linear or bell-shaped acceleration/deceleratio n can be applied.

- Look-ahead acceleration/deceleration before interpolati on

Look-ahead acceleration/deceleration before interp olation is invalid.

- Override

Various types of override functions are invalid. The following override functions can be enabled by setting corresponding parameters:

- Extraction override

- Override signal Details are given later.

- Dry run

Dry run can be executed also in G84 (G74). When dry run is executed at the feedrate for the drilling axis in G84 (G74), tapping is performed according t o the feedrate. Note that the sp indle speed becomes faster at a higher dry run feedrate.

- Machine lock

Machine lock can be executed also in G84 ( G74). When G84 (G74) is executed in the machine lock state, the tool does not move along the drilling axis. Therefore, the spindle does not also rotate.

- Reset

When a reset operation is performed during rigid tapping, rigid tapping is stopped and G code is set as Table 5.3.3 (a) according to bit 6 (CLR) of parameter No.3402, bit 1 (C09) of No.3407. In restarting operation with G84/G74, command G80 if necessary.

Table 5.3.3 (a)

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- Interlock

Interlock can also be applied in G84 (G74).

- Feed hold and single block

Feed hold and single block are disabled in rigid tapping. When bit 6 (FHD) of parameter No.5200 is 1, feed hold and single block are enabled.

- Feed hold

- Bit 6 (FHD) of p arameter No.5200 = 0 If feed hold is applied during tapping, the feed hold lamp turns on immediately, but the tool

decelerates and stops after retraction to initi al lev el (G98 ) o r po in t R lev el (G99 ). If f eed ho ld i s applied during positioning to tapping position, positioning from initial level to point R level, and retraction from point R level to initial level, CNC becomes feed hold state and the tool decelerates and stops.

- Bit 6 (FHD) of p arameter No.5200 = 1 If feed hold is applied from positioning to tapping position to retraction to initial level (G98)

(point R level (G99)), CNC becomes feed hold stat e and the tool decelerates and stops.

- Single block

- Bit 6 (FHD) of p arameter No.5200 = 0 Single block stop points are the end points of positioning to tapping position, positioning from

initial level to point R level, and retraction from point R level to initial level (G98) (point R level (G99)).

- Bit 6 (FHD) of p arameter No.5200 = 1 Single block stop points are the end points of each operation.

- Manual feed

For rigid tapping by manual handle feed, see the section “Rigid Tapping by Manual Handle.” With other manual operations, rigid tapping cannot be performed.

- Backlash compensation

In the rigid tapping mode, backlash compensation is applied to compensate the lost motion when the spindle rotates clockwise or counterclockwise. Set the amount of backlash in parameters Nos. 5321 to

5324. Along the drilling axis, backlash compensation has been applied regardless of whether the rigid tap.

Limitation

- Axis switching

Before the drilling axis can be changed, the canned cy cle must be canceled. If th e drilling ax is is changed in rigid mode, alarm PS0206 is issued.

- S command

- Specifying a rotation speed exceeding the maximum speed for the gear used causes alarm PS0200.

- When the rigid tapping canned cycle is cancelled, the S command used for rigid tapping is cleared to S0.

- Distribution amount for the spindle

The maximum distribution amount is as follows (displayed on diagnosis data No. 451):

- For a serial spindle: 32,767 pulses per 8 ms

This amount is changed according to the gear ratio setting for the position coder or rigid tapping

command. If a setting is made to exceed the upper limit, alarm PS0202 is issued.

- F command

Specifying a value that exceeds the upper limit of cutting feedrate causes alarm PS0011.

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Metric input

Inch input

Remarks

G94

1 mm/min

0.01 inch/min

Decimal point programming allowed

G95

0.01 mm/rev

0.0001 inch/rev

Decimal point programming allowed

- Unit of F command

- M29

Specifying an S command or axis movement between M29 and G84 causes alarm PS0203. Then, specifying M29 in the tapping cycle causes alarm PS0204.

- P/Q

Specify P and Q in a block that performs drilling. If they are specified in a block that does not perform drilling, they are not stored as modal data. When Q0 is specified, the peck rigid tapping cycle is not performed.

- Cancel

Do not specify a group 01 G code (G00 to G03 or G60 (when the bit 0 (MDL) of parameter No. 5431 is set to 1)) and G84 (G74) in the same block. If they are specified together, G84 (G74) is canceled.

- Tool offset

In the canned cycle mode, tool offsets are ignored.

- Subprogram call

In the canned cycle mode, specify the su bprogram call command M98P_ in an independent block.

- Amount of return and cutting start distance

Set the amount of return and the cutting start distance (No. 5213) so that point R is not exceeded.

- Constant surface speed control

If rigid tapping is commanded during constant surface speed control, alarm (PS0200), ”ILLEGAL S CODE COMMAND” is issued. Command rigid tapping after canceling constant surface speed control.

- Positioning by optimum accelerations

Positioning by optimum accelerations is disabled during rigid tapping.

Example

Z-axis feedrate 1000 mm/min Spindle speed 1000 min Thread lead 1.0 mm Depth of cut 20.0 mm Amount of retraction or cutting start distance 10.0 mm (set by parameter No.5213) <Programming for feed per minute> G94 ; Specify a feed-per-minute command. G00 X120.0 Y100.0 ; Positioning M29 S1000 ; Rigid mode specification G74 Z-100.0 R-20.0 Q20.0 F1000 ; Rigid tapping <Programming for feed per revolution> G95 ; Specify a feed-per-revolution command. G00 X120.0 Y100.0 ; Positioning M29 S1000 ; Rigid mode specification G74 Z-100.0 R-20.0 Q20.0 F1.0 ; Rigid tapping

-1

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NOTE

required.

100

×=

) at (specified speed Spindle

) at (specified extraction at speed Spindle

%)( Override

5.3.4 Canned Cycle Cancel (G80)

The rigid tapping canned cycle is canceled. For how to cancel this cycle, see the Subsection 5.1.14, "Canned Cycle Cancel for Drilling (G80)."

When the rigid tapping canned cycle is cancelled, the S value used for rigid

tapping is also cleared (as if S0 is specified).

Accordingly, the S command specified for rigid tapping cannot be used in a

subsequent part of the program after the cancellation of the rigid tapping canned cycle.

After canceling the rigid tapping canned cycle, specify a new S command as

5.3.5 Override during Rigid Tapping

Various types of override functions are invalid. The following override functions can be enabled by setting corresponding parameters:

- Extraction override

- Override signal

5.3.5.1 Extraction override

For extraction override, the fixed override set in the parameter or override specified in a program can be enabled at extraction (including retraction during peck drilling/high-speed peck drilling).

Explanation

- Specifying the override in the parameter

Set bit 4 (DOV) of parameter No. 5200 to 1 and set the override in parameter No. 5211. An override from 0% to 200% in 1% steps can be set. Bit 3 (OVU) of parameter No. 5201 can be set to 1 to set an override from 0% to 2000% in 10% steps.

- Specifying the override in a program

Set bit 4 (DOV) of parameter No. 5200 and bit 4 (OV3) of parameter No. 5201 to 1. The spindle speed at extraction can be specified in the program. Specify the spindle speed at extraction using address "J" in the block in which rigid tapping is specified. Example) To specify 1000 min . M29 S1000 ; G84 Z-100. F1000. J2000 ; .

The difference in the spindle speed is converted to the actual override by the following calculation. Therefore, the spindle speed at extraction may not be the same as that specified at address "J". If the override does not fall in the range between 100% and 200%, it is assumed to be 100%.

-1

for S at cutting and 2000 min-1 for S at extraction

The override to be applied is determined according to the setting of parameters and that in the command as shown in the Table 5.3.5.1 (a).

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Command

DOV = 1

OV3 = 1

OV3 = 0

100% to 200%

program

100% to 200%

No spindle speed at extraction specified at address "J"

Parameter No. 5211

NOTE

1 Do not use a decimal point in the value specified at address "J".

assumed.

3 The maximum override is obtained using the following equation so that the

100

S×=) at (specified speed Spindle

)parameters in (specified speed spindle Maximum

(%) override Maximum

extraction in the rigid tapping mode, it is valid until the canned cycle is canceled.

Table 5.3.5.1 (a)

Parameter setting

DOV = 0

Spindle speed at extraction specified at address "J"

Within the range between

Outside the range between

Command in the

100%

Parameter

No. 5211

If a decimal point is used, the value is assumed as follows:

Example) When the increment system for the reference axis is IS-B

- When pocket calculator type decimal point programming is not used The specified value is converted to the value for which the least input

increment is considered.

"J200." is assumed to be 200000 min-1.

- When pocket calculator type decimal point programming is used The specified value is converted to the value obtained by rounding down

to an integer.

"J200." is assumed to be 200 min-1. 2 Do not use a minus sign in the value specified at address "J". If a minus sign is used, a value outside the range between 100% to 200% is

100%

spindle speed to which override at extraction is applied does not exceed the maximum used gear speed (specified in parameters Nos. 5241 to 5244). For this reason, the obtained value is not the same as the maximum spindle speed depending on the override.

4 When a value is specified at address "J" for specifying the spindle speed at

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5. FUNCTIONS TO SIMPLIFY PROGRAMMING

NOTE

100

×=

) at (specified speed Spindle

)parameters in (specified speed spindle Maximum

(%) override Maximum

manual provided by the machine tool builder.

5.3.5.2 Override signal

By setting bit 4 (OVS) of parameter No. 5203 to 1, override can be applied to cutting/extraction operation during rigid tapping as follows:

- Applying override using the feedrate override signal (When the second feedrate override signal turns “1”, the second feedrate override is applied to the

feedrate to which feedrate override is applied.)

- Canceling override using the override cancel signal

There are the following relationships between this function and override to each operation:

- At cutting

- When the override cancel signal is set to “0”: value specified by the override signal

- When the override cancel signal is set to “1”: 100%

- At extraction

- When the override cancel signal is set to “0”: Value specified by the override signal

- When the override cancel signal is set to “1” and extraction override is disabled: 100%

- When the override cancel signal is set to “1” and extraction override is enabled: Value specified for extraction override

1 The maximum override is obtained using the following equation so that the

spindle speed to which override is applied does not exceed the maximum used gear speed (specified in parameters Nos. 5241 to 5244). For this reason, the obtained value is not the same as the maximum spindle speed depending on the override.

2 Since override operation differs depending on the machine in use, refer to the

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, C_ Chamfering

Hypothetical corner intersection

Inserted chamfering block

<1> G91 G01 X100.0 ,C10.0 ; <2> X100.0 Y100.0 ;

<1> G91 G01 X100.0 ,R10.0 ; <2> X100.0 Y100.0 ;

Center of a circle with radius R

Inserted corner R block

5.4 OPTIONAL CHAMFERING AND CORNER R

Overview

Chamfering and corner R blocks can be inserted automatically between the following:

- Between linear interpolation and linear interpolation blocks

- Between linear interpolation and circular interpolation blocks

- Between circular interpolation and linear interpolation blocks

- Between circular interpo l ation and circular interpolation blocks It is possible to use this function with AI contour control.

Format

, R_ Corner R

Explanation

When the above specification is added to the end of a block that specifies linear interpolation (G01) or circular interpolation (G02 or G03), a chamfering or corner R block is inserted. Blocks specifying chamfering and corner R can be specified consecutively.

- Chamfering

After C, specify the distance from the hypotheti cal corner intersection to the start and end points. The hypothetical corner point is the corner point that would exist if chamfering were not performed.

- Corner R

After R, specify the radius for corner R.

Fig. 5.4 (a) Chamfering

Fig. 5.4 (b) Corner R

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10.0

20.0

30.0

40.0

50.0

80.0

70.0

60.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

N001

N002

N003

N005

N004

N006

N007

N008

N009

N010

N011

Example

N001 G92 G90 X0 Y0 ; N002 G00 X10.0 Y10.0 ; N003 G01 X50.0 F10.0 ,C5.0 ; N004 Y25.0 ,R8.0 ; N005 G03 X80.0 Y55.0 R30.0 ,R8.0 ; N006 G01 X50.0 ,R8.0 ; N007 Y70.0 ,C5.0 ; N008 X10.0 ,C5.0 ; N009 Y10.0 ; N010 G00 X0 Y0 ; N011 M0;

Fig.5.4 (c) Example

Limitation

- Invalid specification

Chamfering (,C) or corner R (,R) specified in a block other than a linear interpolation (G01) or circular interpolation (G02 or G03) block is ignored.

- Next block

A block specifying chamfering or corner R must be followed by a block that specifies a move command using linear interpolation (G01) or circular interpolation (G02 or G03). If the next block does not contain these specifications, alarm PS0051 is issued. Between these blocks, however, only one block specifying G04 (dwell) can be inserted. The dwell is executed after execution of the inserted chamfering or corner R block.

- Exceeding the move range

If the inserted chamfering or corner R block causes the tool to go beyond the original interpolation move range, alarm PS0055 is issued.

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PROGRAMMING

The tool path without chamfering is indicated with a solid line.

Chamfering block to be inserted

G91 G01 X30.0 ; G03 X7.5 Y16.0 R37.0 ,C28.0 ; G03 X67.0 Y-27.0 R55.0 ;

Fig 5.4 (d) Exceeding the move range

- Plane selection

A chamfering or corner R block is inserted only for a command to move the tool within the same plane. Example: When the U-axis is set as an axis parallel to the basic X-axis (by setting parameter No. 1022 to 5),

the following program performs chamfering between cutting feed along the U-axis and that along the Y-axis: G17 U0 Y0 G00 U100.0 Y100.0 G01 U200.0 F100 ,C30.0 Y200.0

The following program causes alarm PS0055, however. (Because chamfering is specified in the

block to move the tool along the X-axis, which is not on the selected plane) G17 U0 Y0 G00 U100.0 Y100.0 G01 X200.0 F100 ,C30.0 Y200.0

The following program also causes alarm PS0055. (Because the block next to the chamfering

command moves the tool along the X-axis, which is not on the selected plane) G17 U0 Y0 G00 U100.0 Y100.0 G01 Y200.0 F100 ,C30.0 X200.0

If a plane selection command (G17, G18, or G19) is specified in the block next to the block in which chamfering or corner R is specified, alarm PS0051 is issued.

- Travel distance 0

When two linear interpolation operations are performed, the chamfering or corner R block is regarded as having a travel distance of zero if the angle between the two straight lines is within ±1°. When linear interpolation and circular interpolation operations are performed, the corner R block is regarded as having a travel distance of zero i f the angle between the straight line and the tangent to the ar c at the intersection is within ±1°. When two circular interpolation operations are performed, the corner R block is regarded as having a travel distance of zero if the angle between the tangents to the arcs at the intersection is within ±1°.

- Macro executer

Optional angle chamfering and corner rounding specified in the execution macro is disabled.

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NOTE

issued.

NOTE

When bit 3 (IXC) of parameter No.8132 is 1, this function can be used.

0°

-45°

+60°

Value specified for rotation from A to B (case 2 described above) G90 B-45.0 ; or G91 B-105.0;

- Single block operation

When the block in which chamfering or corner R is specified is executed in the single block mode, operation continues to the end point of the inserted chamfering or corner R block and the machine stops in the feed hold mode at the end point. When bit 0 (SBC) of parameter No. 5105 is set to 1, the machine stops in the feed hold mode also at the start point of the inserted chamfering or corner R block.

1 When ",C" and ",R" are specified in the same block, the address specified last is

valid.

2 If ",C" or ",R" is specified in a thread cutting command block, alarm PS0050 is

5.5 INDEX TABLE INDEXING FUNCTION

By specifying indexing positions (angles) for one rotation axis (usually referred to as axis A, B, or C), the index table of the machining center can be indexed. Before and after indexing, the index table is automatically unclamped or clamped.

Explanation

- Indexing position

Specify an indexing position with address A, B, or C. The indexing position is specified by either of the following (depending on bit 4 of parameter G90 No.5500):

1. Absolute value only

2. Absolute or incremental value depending on the specified G code: G90 or G91 A positive value indicates an indexing position in the counterclockwise direction. A negative value indicates an indexing position in the clockwise direction. The minimum indexing angle of the index table is the value set to parameter 5512. Only multiples of the least input increment can be specified as the indexin g ang le. If any v alue that is not a mult iple is sp ecified, an alarm PS1561 occurs. Decimal fractions can also be entered. When a decimal fraction is entered, the 1's digit corresponds to degree units.

Fig.5.5 (a) Indexing position

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PROGRAMMING

CAUTION

the index table indexing function (set bit 0 (ITI) of parameter No. 5501 to 0).

NOTE

clamp or unclamp signal is cleared and the CNC exits the completion wait state.

- Direction and value of rotation

The direction of rotation and angular displacement are determined by either of the following two methods. Refer to the manual written by the machine tool builder to find out which method is applied.

1. Using the auxiliary function specified in parameter No. 5511 (Address) (Indexing position) (Miscellaneous function); Rotation in the negative direction (Address) (Indexing position); Rotation in the positive direction (No auxiliary functions are specified.)

An angular displacement greater than 360° is rounded down to the corresponding angular

displacement within 360° when bit 2 (ABS) of parameter No. 5500 specifies this option.

For example, when G90 B400.0 (auxiliary function); is specified at a position of 0, the table is

rotated by 40° in the negative direction.

2. Using no auxiliary functions

By setting to bits 2 (ABS), 3 (INC), and 4 (G90) of parameter No. 5500, operation can be selected

from the following two options.

Select the operation by referring to the manual written by the machine tool builder.

(1) Rotating in the direction in which an angular displacement becomes shortest This is valid only in absolute programming. A specified angular displacement greater than 360°

is rounded down to the corresponding angular displacement within 360° when bit 2 (ABS) of parameter No. 5500 specifies this option.

For example, when G90 B400.0; is specified at a position of 0, the table is rotated by 40° in the

positive direction. (2) Rotating in the specified direction In the absolute programming, the value set in bit 2 (ABS) of parameter No. 5500 determines

whether an angular displacement greater than 360° is rounded down to the corresponding

angular displacement within 360°. In the incremental programming, the angular displacement is not rounded down. For example,

when G90 B720.0; is specified at a position of 0, the table is rotated twice in the positive

direction, when the angular displacement is not rounded down.

- Feedrate

The table is always rotated around the control axis (a rotation axis) used for index table indexing (hereafter called the index table indexing axis) in the rapid traverse mode. Dry runs cannot be executed for the index table indexing axis.

1 If a reset is made during indexing of the index table, a reference position return

must be made before each time the index table is indexed subsequently.

2 For a path on which the index table indexing function is not to be used, disable

1 If an index table indexing axis and another controlled axis are specified in the

same block either alarm PS1564 is issued or the command is executed, depending on bit 6 (SIM) of parameter No. 5500 and bit 0 (IXS) of parameter No.

5502. 2 The auxiliary function specifying a negative direction is processed in the CNC. The relevant M code signal and completion signal are sent between the CNC

and the machine.

3 If a reset is made while waiting for completion of clamping or unclamping, the

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B-64694EN-2/01 PROGRAMMING

5. FUNCTIONS TO SIMPLIFY PROGRAMMING

Item

Explanation

option.

this option.

Single direction positioning

Impossible to specify

2nd auxiliary function (B code)

Possible with any address other than B that of the index table indexing axis.

indexing axis movement

stop can be executed. Machine lock can be executed after indexing is completed.

The index table indexing axis is usually in the servo-off state.

offset value is zero.).

clamp command is not executed.

function is used.

NOTE

To use this function, any one of the above option is required.

- Index table indexing function and other functions

Table 5.5 (a) Index table indexing function and other functions

Relative position display

Absolute position display

Operations during index table

SERVO OFF signal

Incremental commands for an index table indexing axis

Operations for an index table indexing axis

Pole position detection function

This value is rounded down when bit 1 of parameter REL No.5500 specifies this

This value is rounded down when bit 2 (ABS) of parameter No. 5500 specifies

Unless otherwise processed by the machine, feed hold, interlock and emergency

Disabled

The workpiece coordinate system and machine coordinate system must always agree with each other on the index table indexing axis (the workpiece zero point

Manual operation is disabled in the JOG, INC, or HANDLE mode. A manual reference position return can be made. If the axis sel ec tion signal is set to zero during manual reference position return, movement i s stopped and the

This function cannot be used on an axis on which the pole position detection

5.6 IN-FEED CONTROL (FOR GRINDING MACHINE)

Overview

Each time an external signal is input wh en the machin e is at a table swing end point, the machine makes a cut by a constant amount along the programmed profile on the specified YZ plane. This makes it possible to perform grinding and cutting in a timely manner and facilitating the grinding of a workpiece with a profile.

This function is included in the option "Grinding function A" and "Grinding

function B".

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PROGRAMMING

(2)

(3)

(1)

(4)

•

External

signal input

X=0

Sensor placement

X=a

G161 R_ ;

Profile program

NOTE

(Do not specify other G codes at the same time.)

Fig. 5.6 (a)

For example, it is possible to machine a workpiece with a profile programmed with linear interpolation, circular interpolation, and linear interpolation on the YZ plane, such as that shown in the Fig. 5.6 (a). A sensor is placed at an X = 0 position so that the external signal is inp ut when the sensor detects the grinding wheel. When the program is started at poin t A, the machine is fir st placed in t he state in which it waits for the input of the external signal. Then, when the sensor detects the grindi ng wheel, the external signal is inpu t, and the machine makes a cut by the constant amount α along the programmed profile on the specified YZ plane and moves to point B (operation (1)). The machine is then placed in the state in which it waits for the input of the external signal again, and performs a grinding operation along the X-axis. It grinds from point B to point C (operation (2)) and grinds back from point C to point B (operation (3)). When the machine returns to point B, the sensor detects the grinding wheel again, and the external signal is input, so that the machine makes a cut by the amount of α and moves to point D (operation (4)). At point D, the machine performs a grinding operation along the X-axis. Afterwards, each time the external signal is input, the machine makes a cut by the amount of α along the profile program, so that the workpiece is machined to a profile such as that shown in the Fig. 5.6 (a).

Format

G160 ;

Always specify G160 and G161 in an independent block.

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PROGRAMMING

CAUTION

is not correct.

Explanation

- G161 R_

This specifies an operation mode and the start of a profile program. A depth of cut can be specified with R.

- Profile program

Program the profile of a workpiece on the YZ plane, using linear interpolation (G01) or circular interpolation (G02, G03). Multiple-block commands are possible. When a profile program is started, the machine is placed in the state in which it waits for the input of the external signal. When the external signal is input in th is stat e, th e machine makes a cut by t he d ept h o f cut specified with R. Later, until the end point of the program, the machine makes a cut each time the external signal is input. If the final depth of cut is less than R, the remaining travel distance is assumed the dept h of cut. The feedrate is the one specified in the program with an F code. As in normal linear interpolation (G01) or circular interpolation (G02, G03), override can be applied.

- G160

This specifies the cancellation of an operation mode (end of a profile program).

Limitation

- G161 R_

If no value is specified with R or if the value specified with R is negative, alarm PS0230 is issued.

- Profile program

In a profile program, do not issue move commands other than those for linear interpolation (G01) and circular interpolation (G02, G03).

If a move command other than those for linear interpolation (G01) and circ ular

interpolation (G02, G03) is issued in a profile program, the specified depth of cut

- Grinding operation

In this operation mode, a grinding operation that causes the machine to move to and from the grinding wheel cannot be specified in an NC program. Perform such an operation by PMC axis control etc.

- Block overlap

In this operation mode, block overlap is disabled.

- The external signal

The external signal is disabled when it is input before a profile program is started. Input the external signal after the start of a profile p rogram. Also, ev en if the external signal is input during a cut, this is not accepted in the next cut. It is necessary to input the signal again after the end of the cut, when the machine is in the state in which it waits for the input of the external signal.

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PROGRAMMING

O0001 ;

NOTE

for an incremental command with bit 1 (ABS) of parameter No. 7001 being 1.

70.0

80.0

70.0

R=67.000

Example

: N0 G161 R10.0 ; N1 G91 G01 Z-70.0 F100 ; N2 G19 G02 Z-80.0 R67.0 ; N3 G01 Z-70.0 ; N4 G160 ;

Fig. 5.6 (b)

The program above causes the machine to move by 10.000 along the machining profile in the Fig. 5.6 (b) each time the external signal is input. α = Travel distance at each input of the external signal. The feedrate is the one specified in the program with an F code.

Note

If manual intervention is performed during in-feed control, the tool path aft er the

manual intervention can be switched by setting the manual absolute switch to on or off as in normal linear/circular interpolation. When the manual absolute switch is on, the machine returns to the programmed path for an absolute comm and or

5.7 CANNED GRINDING CYCLE (FOR GRINDING MACHINE)

With the canned grinding cycle, repetitive machining operations that are specific to grinding and are usually specified using several blocks can be specified using one block including a G function. So, a program can be created simply. At the same time, the size of a program can be reduced, an d the memory can be used more efficiently. Four types of canned grinding cycles are available:

- Plunge grinding cycle (G75)

- Direct constant-dimension plunge grinding cycle (G77)

- Continuous-feed surface grinding cycl e ( G78)

- Intermittent-feed surface grinding cycle (G79)

In the descriptions below, an axis used for cutting with a grinding wheel and an axis used for grinding with a grinding wheel are referred to as follows:

Axis used for cutting with a grinding wheel: Cutting axis Axis used for grinding with a grinding wheel: Grinding axis Axis on which to make a dresser cut: Dressing axis

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fanuc 0i-F Plus Operator’s Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY PRECAUTIONS

TABLE OF CONTENTS

I. GENERAL

1 GENERAL

1.1 NOTES ON READING THIS MANUAL

1.2 NOTES ON VARIOUS KINDS OF DATA

II. PROGRAMMING

1 GENERAL

1.1 TOOL FIGURE AND TOOL MOTION BY PROGRAM

3 INTERPOLATION FUNCTION

3.1 THREADING (G33)

4 COORDINATE VALUE AND DIMENSION

4.1 POLAR COORDINATE COMMAND (G15, G16)

5 FUNCTIONS TO SIMPLIFY PROGRAMMING

5.1 CANNED CYCLE FOR DRILLING

5.1.1 High-Speed Peck Drilling Cycle (G73)

5.1.2 Left-Handed Tapping Cycle (G74)

5.1.3 Fine Boring Cycle (G76)

5.1.4 Drilling Cycle, Spot Drilling (G81)

5.1.5 Drilling Cycle Counter Boring Cycle (G82)

5.1.6 Peck Drilling Cycle (G83)

5.1.7 Small-Hole Peck Drilling Cycle (G83)

5.1.8 Tapping Cycle (G84)

5.1.9 Boring Cycle (G85)

5.1.10 Boring Cycle (G86)

5.1.11 Back Boring Cycle (G87)

5.1.12 Boring Cycle (G88)

5.1.13 Boring Cycle (G89)

5.1.14 Canned Cycle Cancel for Drilling (G80)

5.1.15 Example for Using Canned Cycles for Drilling

5.2 CANNED CYCLE OVERLAP FOR DRILLING

5.3 RIGID TAPPING

5.3.1 Rigid Tapping (G84)

5.3.2 Left-Handed Rigid Tapping Cycle (G74)

5.3.3 Peck Rigid Tapping Cycle (G84 or G74)

5.3.4 Canned Cycle Cancel (G80)

5.3.5 Override during Rigid Tapping

5.3.5.1 Extraction override

5.3.5.2 Override signal

5.4 OPTIONAL CHAMFERING AND CORNER R

5.5 INDEX TABLE INDEXING FUNCTION

5.6 IN-FEED CONTROL (FOR GRINDING MACHINE)

5.7 CANNED GRINDING CYCLE (FOR GRINDING MACHINE)