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FANUC Series Series 16i-TB, Series 18i-TB, Series 160i-TB, Series 180i-TB. OPERATOR’S MANUAL - page 20

B-63524EN/01

OPERATION

4. AUTOMATIC OPERATION

4.10.5

Connecting PCMCIA

Card Attachment

4.10.5.1

Specification number

Specification

Remarks

A02B-0236-K160

For 7.2″ LCD or 8.4″ LCD

A02B-0236-K161

For 9.5″ LCD or 10.4″ LCD

4.10.5.2

1) How to assemble to the unit

Assemble an attachment guide and a control unit to the cabinet by

Assembling

screwing together as follow figure.

The attachment guide is 1.6mm thick. Pay attention for the length of

the screws when you assemble them.

Attachment

guide

2) How to mount the card

(a) Insert the card to slit of the attachment. Please pay attention to the

direction of the card.

(Please mach the direction of ditch on the

card.)

(b) Push up the card to the upper end of the attachment.

549

4. AUTOMATIC OPERATION

OPERATION

B-63524EN/01

3) Assembling of the attachment

Insert the memory card with the attachment into the memory card

interface as following figure. And, fix the attachment guide by

screwing the screw of the attachment guide by manual.

Memory card inter-

face

attach-

ment

screw to fix the attach-

ment

550

B-63524EN/01

OPERATION

4. AUTOMATIC OPERATION

4) Appearance after connection

NOTE

1

In both case of stand-alone type i series and LCD mounted

type i series, the memory card interface where is the left side

of the screen of the display unit. (The memory card interface

on the stand-alone type controller is not available.)

2

It is impossible to assemble the display unit and the

attachment guide from inside of the cabinet.

3

The memory card must be used in the condition, as the

coolant cannot be poured directly on it.

4.10.6

Recommended

Maker

Type

Capacity

Memory Card

Hitachi LTD

HB289016A4

16MB

HB289032A4

32MB

HB289160A4

160MB

Matushita electric

BN-012AB

12MB

BN-020AB

20MB

BN-040AB

40MB

SanDisk

SDP3B-4

4MB

SDP3B-20

20MB

SDP3B-40

40MB

551

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OPERATION

5. TEST OPERATION

To display the change in the position without moving the tool, use

5.1

machine lock.

MACHINE LOCK AND

There are two types of machine lock, all-axis machine lock, which stops

AUXILIARY

the movement along all axes, and specified-axis machine lock, which

FUNCTION LOCK

stops the movement along specified axes only. In addition, auxiliary

function lock, which disables M, S, and T commands, is available for

checking a program together with machine lock.

MDI

X

Z

Tool

Workpiece

The tool does not move but the position

along each axis changes on the display.

Fig. 5.1 Machine lock

Procedure for Machine Lock and Auxiliary Function Lock

D Machine Lock

Press the machine lock switch on the operator’s panel. The tool does not

move but the position along each axis changes on the display as if the tool

were moving.

Some machines have a machine lock switch for each axis. On such

machines, press the machine lock switches for the axes along which the

tool is to be stopped. Refer to the appropriate manual provided by the

machine tool builder for machine lock.

WARNING

The positional relationship between the workpiece

coordinates and machine coordinates may differ before and

after automatic operation using machine lock. In such a

case, specify the workpiece coordinate system by using a

coordinate setting command or by performing manual

reference position return.

Press the auxiliary function lock switch on the operator’s panel. M, S, T,

D Auxiliary Function Lock

and B codes are disabled and not executed. Refer to the appropriate

manual provided by the machine tool builder for auxiliary function lock.

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OPERATION

5. TEST OPERATION

A programmed feedrate can be reduced or increased by a percentage (%)

5.2

selected by the override dial. This feature is used to check a program.

FEEDRATE

For example, when a feedrate of 100 mm/min is specified in the program,

OVERRIDE

setting the override dial to 50% moves the tool at 50 mm/min.

Feedrate 100 mm/min

(Specified by programmed)

Tool

Check the machining

by altering the feedrate

Feedrate 50 mm/min after

from the value speci-

feedrate override

fied in the program.

Workpiece

Fig. 5.2 Feedrate override

Procedure for Feedrate Override

Set the feedrate override dial to the desired percentage (%) on the

machine operator’s panel, before or during automatic operation.

On some machines, the same dial is used for the feedrate override dial

and manual continuous feedrate dial. Refer to the appropriate manual

provided by the machine tool builder for feedrate override.

0

200

JOG FEED RATE OVERRIDE

Restrictions

D Override Range

The override that can be specified ranges from 0 to 254%. For individual

machines, the range depends on the specifications of the machine tool

builder.

D Override during thread

During threading, the override is ignored and the feedrate remains as

specified by program.

555

5. TEST OPERATION

OPERATION

B-63524EN/01

An override of four steps (F0, 25%, 50%, and 100%) can be applied to the

5.3

rapid traverse rate. F0 is set by a parameter (No. 1421).

RAPID TRAVERSE

OVERRIDE

Rapid traverse

5m/min

rate10m/min

Override

50%

Fig. 5.3 Rapid traverse override

Procedure for Rapid Traverse Override

Select one of the four feedrates with the rapid traverse override switch

during rapid traverse. Refer to the appropriate manual provided by

the machine tool builder for rapid traverse override.

25

50

LOW

100

Rapid traverse override

Explanation

The following types of rapid traverse are available. Rapid traverse

override can be applied for each of them.

1) Rapid traverse by G00.

2) Rapid traverse during a canned cycle.

3) Rapid traverse in G27, G28 and G30.

4) Manual rapid traverse.

5) Rapid traverse of manual reference position return

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OPERATION

5. TEST OPERATION

The tool is moved at the feedrate specified by a parameter regardless of

5.4

the feedrate specified in the program. This function is used for checking

DRY RUN

the movement of the tool under the state that the workpiece is removed

from the table.

Tool

ÇChuckÇÇ

ÇÇÇÇÇ

ÇÇÇÇÇ

ÇÇÇ

ÇÇÇ

ÇÇÇ

ÇÇÇ

ÇÇÇ

ÇÇÇÇÇ

ÇÇÇÇÇ

ÇÇÇÇÇ

Fig. 5.4 Dry run

Procedure for Dry Run

Press the dry run switch on the machine operator’s panel during

automatic operation. The tool moves at the feedrate specified in a

parameter. The rapid traverse switch can also be used for changing

the feedrate. Refer to the appropriate manual provided by the

machine tool builder for dry run.

Explanation

D Dry run feedrate

The dry run feedrate changes as shown in the table below according to the

rapid traverse switch and parameters.

SINGLE

OPT

BLOCK

MC

Rapid traverse

Program command

BLOCK

STOP

SKIP

LOCK

button

Rapid traverse

Feed

DRY

RUN

MST

WORK

LOCK

LIGHT

ON

Rapid traverse rate

Dry run feedrate×JVmax *2)

OFF

Dry run speed JV,or rapid

Dry run feedrate JV

traverse rate *1)

Max. cutting feedrate

Setting by parameter No. 1422

Rapid traverse rate

Setting by parameter No. 1420

Dry run feedrate

Setting by parameter No. 1410

JV: Jog feedrate override

*1) Dry run feedrate x JV when parameter RDR (bit 6 of No. 1401) is

1. Rapid traverse rate when parameter RDR is 0.

*2) Clamped to the maximum cutting feedrate

JVmax: Maximum value of jog feedrate override

557

5. TEST OPERATION

OPERATION

B-63524EN/01

Pressing the single block switch starts the single block mode. When the

5.5

cycle start button is pressed in the single block mode, the tool stops after

SINGLE BLOCK

a single block in the program is executed. Check the program in the single

block mode by executing the program block by block.

Cycle start

Cycle start

Cycle start

Cycle start

Tool

ÇÇÇÇÇ

Stop

Stop

Stop

ÇÇÇÇÇ

Stop

ÇÇÇ

ÇÇÇ

Workpiece

ÇÇÇ

ÇÇÇ

ÇÇÇ

ÇÇÇÇÇ

ÇÇÇÇÇ

ÇÇÇÇÇ

Single block

Procedure for Single Block

1

Press the single block switch on the machine operator’s panel. The

execution of the program is stopped after the current block is

executed.

2

Press the cycle start button to execute the next block. The tool stops

after the block is executed.

Refer to the appropriate manual provided by the machine tool builder

for single block execution.

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OPERATION

5. TEST OPERATION

Explanation

D Reference position

If G28 to G30 are issued, the single block function is effective at the

return and single block

intermediate point.

D Single block during a

In a canned cycle, the single block stop points are as follows.

canned cycle

Rapid traverse

S

: Single block

Cutting feed

Tool path

Explanation

lG90

Straight cutting cycle

Taper cutting cycle

Tool path 1

(Outer/inner turning cycle)

S

S

to 4 is as-

4

4

sumed as

1

1

3

3

2

2

one cycle.

After 4 is fin-

ished, a stop

is made.

lG92

Straight threading cycle

Taper threading cycle

Tool path 1

(Threading cycle)

S

S

to 4 is as-

4

4

sumed as

1

1

3

3

2

2

one cycle.

After 4 is fin-

ished, a stop

is made.

lG94

Straight end surface cutting cycle

Taper end surface cutting cycle

(End surface turning cycle)

S

S

Tool path 1

1

1

to 4 is as-

2

4

4

sumed as

2

one cycle.

3

3

After 4 is fin-

ished, a stop

is made.

lG70

S

7

(Finishing cycle)

Tool path 1

6

to 7 is as-

5

4

1

sumed as

3

one cycle.

2

After 7 is fin-

ished, a stop

is made.

lG71

S

(Outer surface rough

4

Each tool

3

20

1

machining cycle)

2

path 1 to 4,5

G72

8

7

6

5

to 8,9 to 12,

(End surface rough machining

11

12

9

13 to 16 and

cycle)

10

19

17 to 20 is

15

16

13

14

assumed as

17

one cycle.

18

After each

cycle is fin-

ished, a stop

This figure shows the case for G71. G72 is the same.

is made.

Fig. 5.5 Single block during canned cycle (1/2)

559

5. TEST OPERATION

OPERATION

B-63524EN/01

Rapid traverse

S

: Single-block stop

Cutting feed

Tool path

Explanation

lG73

S

6

Tool path 1

(Closed-loop cutting cycle)

to 6 is as-

5

4

1

sumed as

3

2

one cycle.

After 10 is

finished, a

stop is

made.

lG74

9

5

1

(End surface cutting-off cycle)

Tool path 1

8

7

6

4

3

2

S

G75

to 10 is as-

(Outer/inner surface cutting-off

sumed as

10

cycle)

one cycle.

After 10 is

finished, a

This figure shows the case for G74. G75 is the same.

stop is

made.

lG76

S

(Multiple repetitive threading cycle)

4

Tool path 1

to 4 is as-

1

3

sume as

one cycle.

2

After 4 is fin-

ished, a stop

is made.

Fig. 5.5 Single block during canned cycle (2/2)

D Subprogram call and

Single block stop is not performed in a block containing M98P_;. M99;

single block

or G65.

However, single block stop is even performed in a block with M98P_ or

M99 command, if the block contains an address other than O, N or P.

560

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OPERATION

6. SAFETY FUNCTIONS

If you press Emergency Stop button on the machine operator’s panel, the

6.1

machine movement stops in a moment.

EMERGENCY STOP

Red

EMERGENCY STOP

Fig. 6.1 Emergency stop

This button is locked when it is pressed. Although it varies with the

machine tool builder, the button can usually be unlocked by twisting it.

Explanation

EMERGENCY STOP interrupts the current to the motor.

Causes of trouble must be removed before the button is released.

563

6. SAFETY FUNCTIONS

OPERATION

B-63524EN/01

When the tool tries to move beyond the stroke end set by the machine tool

6.2

limit switch, the tool decelerates and stops because of working the limit

OVERTRAVEL

switch and an OVER TRAVEL is displayed.

Deceleration and stop

Y

X

Stroke end

Limit switch

Fig. 6.2 Overtravel

Explanation

D Overtravel during

When the tool touches a limit switch along an axis during automatic

automatic operation

operation, the tool is decelerated and stopped along all axes and an

overtravel alarm is displayed.

D Overtravel during

In manual operation, the tool is decelerated and stopped only along the

manual operation

axis for which the tool has touched a limit switch. The tool still moves

along the other axes.

Press the reset button to reset the alarm after moving the tool to the safety

D Releasing overtravel

direction by manual operation. For details on operation, refer to the

operator’s manual of the machine tool builder.

D Alarm

No.

Message

Description

The tool has exceeded the hardware-spe-

506

Overtravel: +n

cified overtravel limit along the positive nth

axis (n: 1 to 8).

The tool has exceeded the hardware-spe-

507

Overtravel: -n

cified overtravel limit along the negative nth

axis (n: 1 to 8).

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OPERATION

6. SAFETY FUNCTIONS

There areas which the tool cannot enter can be specified with stored stroke

6.3

check 1, stored stroke check 2, and stored stroke check 3.

STORED STROKE

CHECK

ÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇ

ÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇ

ÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇ

ÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇ

ÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇ

Stored stroke limit 3

ÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇ

Stored stroke limit 2ÇÇÇÇÇ

ÇÇÇÇÇÇÇÇ

ÇÇ

ÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇ

ÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇ

ÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇ

ÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇ

ÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇ

ÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇÇ

ÇÇ:Forbidden area for the tool

ÇÇ

Fig. 6.3 (a) Stroke check

When the tool exceeds a stored stroke limit, an alarm is displayed and the

tool is decelerated and stopped.

When the tool enters a forbidden area and an alarm is generated, the tool

can be moved in the reverse direction from which the tool came.

Explanation

D Stored stroke check 1

Parameters (Nos. 1320, 1321 or Nos. 1326, 1327) set boundary. Outside

the area of the set limits is a forbidden area. The machine tool builder

usually sets this area as the maximum stroke.

D Stored stroke check 2

Parameters (Nos. 1322, 1323) or commands set these boundaries. Inside

(G22, G23)

or outside the area of the limit can be set as the forbidden area. Parameter

OUT (No. 1300#0) selects either inside or outside as the forbidden area.

In case of program command a G22 command forbids the tool to enter the

forbidden area, and a G23 command permits the tool to enter the

forbidden area. Each of G22; and G23; should be commanded

independently of another commands in a block.

The command below creates or changes the forbidden area:

565

6. SAFETY FUNCTIONS

OPERATION

B-63524EN/01

G 22X_Z_I_K_;

A(X,Z)

B(I,K)

X>I,Z>K

X-I>ζ

Z-K>ζ

ζ is the distance the tool travels in 8 ms. It is 2000 in least

command increments when the feedrate is 15 m/min.

Fig. 6.3 (b) Creating or changing the forbidden area using a program

When setting the area by parameters, points A and B in the figure below

must be set.

A(X_1,Z₁)

B(X_2,Z₂)

X₁>X 2 , Z₁>Z₂

X₁-X₂> ζ

Z₁-Z₂> ζ

ζ is the distance the tool travels in 8 ms. It is 2000 in least

command increments when the feedrate is 15 m/min.

Fig. 6.3 (c) Creating or changing the forbidden area using a parameters

In stored stroke check 2, even if you mistake the order of the coordinate

value of the two points, a rectangular, with the two points being the

apexes, will be set as the area.

When you set the forbidden area X₁, Z₁, X₂, and Z₂ through parameters

(Nos. 1322, 1323), the data should be specified by the distance from the

reference position in the least command increment. (Output increment)

If set the forbidden area XZIK by a G22 command, specify the data by the

distance from the reference position in the least input increment (Input

increment.) The programmed data are then converted into the numerical

values in the least command increment, and the values are set as the

parameters.

D Stored stroke check 3

Set the boundary with parameters No. 1324 and 1325. The area inside the

boundary becomes the forbidden area.

566

B-63524EN/01

OPERATION

6. SAFETY FUNCTIONS

D Checkpoint for the

The parameter setting or programmed value (XZIK) depends on which

forbidden area

part of the tool or tool holder is checked for entering the forbidden area.

Confirm the checking position (the top of the tool or the tool chuck) before

programming the forbidden area.

If point C (The top of the tool) is checked in Fig. 6.3 (d) , the distance “c”

should be set as the data for the stored stroke limit function. If point D

(The tool chuck) is checked, the distance “d” must be set.

d

D

c

C

The position of the

tool after reference

Area boundary

position return

Fig. 6.3 (d) Setting the forbidden area

D Forbidden area over-

Area can be set in piles.

lapping

ÇÇÇÇÇÇÇÇÇÇ

Ç

ÇÇ

Ç

ÇÇÇÇÇÇ

Ç

ÇÇÇÇÇÇ

Ç

ÇÇ

ÇÇÇÇÇÇÇÇÇÇ

Fig. 6.3 (e) Setting the forbidden area over lapping

Unnecessary limits should be set beyond the machine stroke.

D Effective time for a

Each limit becomes effective after the power is turned on and manual

forbidden area

reference position return or automatic reference position return by G28

has been performed.

After the power is turned on, if the reference position is in the forbidden

area of each limit, an alarm is generated immediately. (Only in G22 mode

for stored stroke limit 2).

When the tool has become unmovable in the forbidden area, push the

D Releasing the alarms

emergency stop button to release the forbidden condition and move the

tool out of the forbidden area in the G23 mode; then, if the setting is

wrong, correct it and perform the reference position return again.

D Change from G23 to

When G23 is switched to G22 in the forbidden area, the following results.

G22 in a forbidden area

(1) When the forbidden area is inside, an alarm is informed in the next

move.

(2) When the forbidden area is outside, an alarm is informed immediately.

567

6. SAFETY FUNCTIONS

OPERATION

B-63524EN/01

D Setting the forbidden

For the two-path control, set a forbidden area for each tool post.

area for the two-path

control

NOTE

In setting a forbidden area, if the two points to be set arethe

same, the area is as follows:

(1)When the forbidden area is stored stroke check 1, all

areas are forbidden areas.

(2)When the forbidden area is stored stroke check 2 or

stored stroke check 3 all areas are movable areas.

D Overrun amount of

If the maximum rapid traverse rate is F (mm/min), the maximum overrun

stored stroke limit

amount, L (mm), of the stored stroke limit is obtained from the following

expression:

L (mm) = F/7500

The tool enters the specified inhibited area by up to L (mm). Bit 7 (BFA)

of parameter No. 1300 can be used to stop the tool when it reaches a point

L mm short of the specified area. In the case, the tool will not enter the

inhibited area.

D Timing for displaying

Parameter BFA (bit 7 of No. 1300) selects whether an alarm is displayed

an alarm

immediately before the tool enters the forbidden area or immediately after

the tool has entered the forbidden area.

ALram

Number

Message

Contents

500

OVER TRAVEL:

Exceeded the n-th axis (1-8) + side stored

+n

stroke limit 1.

501

OVER TRAVEL:

Exceeded the n-th axis (1-8)

* side stored

–n

stroke limit 1.

502

OVER TRAVEL:

Exceeded the n-th axis (1-8) + side stored

+n

stroke limit 2.

503

OVER TRAVEL:

Exceeded the n-th axis (1-8)

* side stored

–n

stroke limit 2.

504

OVER TRAVEL:

Exceeded the n-th axis (1-8) + side stored

+n

stroke limit 3.

505

OVER TRAVEL:

Exceeded the n-th axis (1-8)

* side stored

–n

stroke limit 3.

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OPERATION

6. SAFETY FUNCTIONS

The chuck-tailstock barrier function prevents damage to the machine by

6.4

checking whether the tool tip fouls either the chuck or tailstock.

CHUCK AND

Specify an area into which the tool may not enter (entry-inhibition area).

TAILSTOCK

This is done using the special setting screen, according to the shapes of

BARRIERS

the chuck and tailstock. If the tool tip should enter the set area during a

machining operation, this function stops the tool and outputs an alarm

message.

The tool can be cleared from the area only by retracting it in the direction

opposite to that in which the tool entered the area.

Setting the chuck and tailstock barriers

D Setting the shapes of the

OFFSET

1

Press the

SETTING

function key.

chuck and tailstock

2

Press the

continuous menu key. Then, press the [BARIER]

chapter selection soft key.

3

Pressing the page key toggles the display between the chuck barrier

setting screen and tailstock barrier setting screen.

Chuck barrier setting screen

BARRIER (CHUCK)

O0000 N00000

TY=0(0:IN,1:OUT)

W1

L =

50.000

W

L1

W =

60.000

L1=

25.000

CX

W1=

30.000

L

CX=

200.000

CZ

CZ=

-100.000

ACTUAL POSITION (ABSOLUITE)

X

200.000

Z

50.000

>_

MDI **** *** ***

14:46:09

[

][ W.SHFT ][

][ BARIER

][ (OPRT) ]

569

6. SAFETY FUNCTIONS

OPERATION

B-63524EN/01

Tailstock barrier setting screen

BARRIER (TAILSTOCK)

O0000 N00000

L

L =

100.000

X

D =

200.000

L1

L1=

50.000

/D3

D1=

100.000

L2

/

L2=

50.000

/

TZ

D2=

50.000

D2

D1

D

D3=

30.000

/D3

Z

TZ=

100.000

ACTUAL POSITION (ABSOLUTE)

X

200.000

Z

50.000

>_

MDI **** *** ***

14:46:09

[ INPUT ][ +INPUT ][

SET

][

][

]

4

Position the cursor to each item defining the shape of the chuck or

tailstock, enter the corresponding value, then press the [INPUT] soft

key. The value is set. Pressing the [+INPUT] soft key after a value has

been entered adds the entered value to the current value, the new

setting being the sum of the two values.

Items CX and CZ, both on the chuck barrier setting screen, and item

TZ on the tailstock barrier setting screen can also be set in another

way. Manually move the tool to the desired position, then press the

[SET] soft key to set the coordinate(s) of the tool in the workpiece

coordinate system. If a tool having an offset other than 0 is manually

moved to the desired position with no compensation applied,

compensate for the tool offset in the set coordinate system.

Items other than CX, CZ, and TZ cannot be set by using the [SET] soft

key.

Example)

When the tool tip enters the entry-inhibition area during machining,

the function stops the movement of the tool and displays an alarm

message. Since the machine system can stop only a slight delay after

the CNC stops, the tool will actually stop moving at a point within the

specified boundary. For safety, therefore, set an area a little larger than

the determined area. The distance between the boundaries of these two

areas, L, is calculated from the following equation, based on the rapid

traverse rate.

1

L + (Rapid traverse Rate)

7500

When the rapid traverse rate is 15 m/min, for example, set an area

having a boundary 2 mm outside that of the determined area.

The shapes of the chuck and tailstock can be set using parameters No.

1330 to 1345.

CAUTION

Set G23 mode before attempting to specify the shapes of

the chuck and tailstock.

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OPERATION

6. SAFETY FUNCTIONS

D Reference position

1

Return the tool to the reference position along the X- and Z-axes.

return

The chuck-tailstock barrier function becomes effective only once

reference position return has been completed after power on.

When an absolute position detector is provided, reference position

return need not always be performed. The positional relationship

between the machine and the absolute position detector, however,

must be determined.

D G22, G23

1

After reference position return, specifying G22 (stored stroke limit

on) makes the entry-inhibition areas for the chuck and tailstock

effective. Specifying G23 (stored stroke limit off) disables the

function.

Even if G22 is specified, the entry-inhibition area for the tailstock can

be disabled by issuing a tailstock barrier signal.

When the tailstock is pushed up against a workpiece or separated from

the workpiece by using the miscellaneous functions, PMC signals are

used to enable or disable the tailstock setting area.

Tailstock barrier

G code

Chuck barrier

Tailstock barrier

signal

0

Effective

Effective

G22

1

Effective

Ineffective

G23

No relation

Ineffective

Ineffective

G22 is usually selected when the power is turned on. Using G23, bit 7

of parameter No. 3402, however, it can be changed to G23.

Explanations

D Setting the shape of the

chuck barrier

D Chuck holding the outer

D Chuck holding the

face of a tool

inner face of a tool

X

X

L

L

ÙÙÙ

A

ÙÙÙ

A

ÙÙÙÙÙL1ÙÙ

ÙÙÙÙÙ

W1

ÙÙÙWÙÙÙ

ÙÙÙÙÙ

W

CX

CX

ÙÙÙÙÙÙÙ

ÙÙÙÙÙÙÙ

W1

L1

ÙÙÙÙÙ

ÙÙÙÙÙÙÙ

ÙÙÙ

Z

ÙÙÙ

Z

ÙÙÙÙÙ

CZ

ÙÙÙÙÙÙÙ

ÙÙÙÙÙ

Origin of work-

ÙÙÙÙÙÙÙ

piece coordi-

ÙÙÙÙÙÙÙ

ÙÙÙÙÙÙÙ

nate system

Origin of work-

ÙÙÙÙÙÙÙ

ÙÙÙÙÙ

piece coordinate

system

ÙÙÙÙÙÙÙ

ÙÙÙÙÙ

ÙÙÙ

ÙÙÙ

Note) The hatched areas indicate entry-inhibition areas.

571

6. SAFETY FUNCTIONS

OPERATION

B-63524EN/01

Symbol

Description

TY

Chuck-shape selection (0: Holding the inner face of a tool, 1: Holding the outer

face of a tool)

CX

Chuck position (along X-axis)

CZ

Chuck position (along Z-axis)

L

Length of chuck jaws

W

Depth of chuck jaws (radius)

L1

Holding length of chuck jaws

W1

Holding depth of chuck jaws (radius)

TY :

Selects a chuck type, based on its shape. Specifying 0 selects a chuck

that holds the inner face of a tool. Specifying 1 selects a chuck that

holds the outer face of a tool. A chuck is assumed to be symmetrical

about its Z-axis.

CX, CZ:

Specify the coordinates of a chuck position, point A, in the workpiece

coordinate system. These coordinates are not the same as those in the

machine coordinate system. Table 6.4 (a) lists the units used to specify

the data.

WARNING

Whether diameter programming or radius programming is

used for the axis determines the programming system.

When diameter programming is used for the axis, use

diameter programming to enter data for the axis.

Table 6.4 (a) Units

Data unit

Increment

Valid data range

system

IS-A

IS-B

Metric input

0.001 mm

0.0001 mm

-99999999 to +99999999

Inch input

0.0001 inch

0.00001 inch

-99999999 to +99999999

L, L1, W, W1:

Define the shape of a chuck. Table 6.4 (b) lists the units used to specify

the data.

WARNING

Always specify W and W1 in radius. When radius

programming is used for the Z-axis, specify L and L1 in

radius.

Table 6.4 (b) Units

Data unit

Increment

Valid data range

system

IS-A

IS-B

Metric input

0.001 mm

0.0001 mm

-99999999 to +99999999

Inch input

0.0001 inch

0.00001 inch

-99999999 to +99999999

572

B-63524EN/01

OPERATION

6. SAFETY FUNCTIONS

D Setting the shape of a

tailstock barrier

L

TZ

L1

L2

B

Work-

piece

Z

D3

D2

D1

D

Origin of the

workpiece

coordinate

system

Symbol

Description

TZ

Tailstock position (along the Z-axis)

L

Tailstock length

D

Tailstock diameter

L1

Tailstock length (1)

D1

Tailstock diameter (1)

L2

Tailstock length (2)

D2

Tailstock diameter (2)

D3

Tailstock diameter (3)

TZ :

Specifies the Z coordinate of the chuck position, point B, in the

workpiece coordinate system. These coordinates are not the same as

those in the machine coordinate system. Table 6.4 (c) lists the units

used to specify the data. A tailstock is assumed to be symmetrical

about its Z-axis.

WARNING

Whether diameter programming or radius programming is

used for the Z-axis determines the programming system.

Table 6.4 (c) Units

Increment

Data unit

Valid data range

system

IS-A

IS-B

Metric input

0.001 mm

0.0001 mm

-99999999 to +99999999

Inch input

0.0001 inch

0.00001 inch

-99999999 to +99999999

L, L1, L2, D, D1, D2, D3:

Define the shape of a tailstock. Table 6.4 (d) lists the units used to

specify the data.

WARNING

Always specify D, D1, D2, and D3 in diameter programming.

When radius programming is used for the Z-axis, specify L,

L1, and L2 in radius.

573

6. SAFETY FUNCTIONS

OPERATION

B-63524EN/01

Table 6.4 (d) Units

Data unit

Increment

Valid data range

system

IS-A

IS-B

Metric input

0.001 mm

0.0001 mm

-99999999 to +99999999

Inch input

0.0001 inch

0.00001 inch

-99999999 to +99999999

D Setting the

The tip angle of the tailstock is 60 degrees. The entry-inhibition area is

entry-inhibition area for

set around the tip, assuming the angle to be 90 degrees, as shown below.

the tailstock tip

90°

60°

Limitations

D Correct setting of an

If an entry-inhibition area is incorrectly set, it may not be possible to

entry-inhibition area

make the area effective. Avoid making the following settings:

D L < L1 or W < W1 in the chuck-shape settings.

D D2 < D3 in the tailstock-shape settings.

D A chuck setting overlapping that of the tailstock.

D Retraction from the

If the tool enters the entry-inhibition area and an alarm is issued, switch

entry-inhibition area

to manual mode, retract the tool manually, then reset the system to release

the alarm. In manual mode, the tool can be moved only in the opposite

direction to that in which the tool entered the area. The tool cannot be

moved in the same direction (further into the area) as it was travelling

when the tool entered the area.

When the entry-inhibition areas for the chuck and tailstock are enabled,

and the tool is already positioned within those areas, an alarm is issued

when the tool moves. When the tool cannot be retracted, change the

setting of the entry-inhibition areas, such that the tool is outside the areas,

reset the system to release the alarm, then retract the tool. Finally, reinstall

the original settings.

574

B-63524EN/01

OPERATION

6. SAFETY FUNCTIONS

D Coordinate system

An entry-inhibition area is defined using the workpiece coordinate

system. Note the following.

1

When the workpiece coordinate system is shifted by means of a

command or operation, the entry-inhibition area is also shifted by the

same amount.

Entry-inhibi-

tion area

Entry-inhibi-

Old workpiece

tion area

coordinate system

New workpiece

coordinate system

Machine coordinate system

Use of the following commands and operations will shift the workpiece

coordinate system.

Commands:

G54 to G59, G52, G50 (G92 in G code system B or C)

Operations:

Manual handle interrupt, change in offset relative to the workpiece

reference point, change in tool offset (tool geometry compensation),

operation with machine lock, manual operation with machine absolute

signal off

2

When the tool enters an entry-inhibition area during automatic

operation, set the manual absolute signal, *ABSM, to 0 (on), then

manually retract the tool from the area. If this signal is 1, the distance

the tool moves in manual operation is not counted in the tool

coordinates in the workpiece coordinate system. This results in the

state where the tool can never be retracted from the entry-inhibition

area.

D Stored stroke limit 2

When both stored stroke limit 2 and the chuck-tailstock barrier function

are provided, the barrier takes priority over the stroke limit. Stored stroke

limit 2 is ignored.

Alarms

Number

Message

Contents

502

OVER TRAVEL: +X

The tool has entered the entry-inhibition

area during positive-direction movement

along the X-axis.

OVER TRAVEL: +Z

The tool has entered the entry-inhibition

area during positive-direction movement

along the Z-axis.

503

OVER TRAVEL: -X

The tool has entered the entry-inhibition

area during negative-direction movement

along the X-axis.

OVER TRAVEL: -Z

The tool has entered the entry-inhibition

area during negative-direction movement

along the Z-axis.

575

6. SAFETY FUNCTIONS

OPERATION

B-63524EN/01

During automatic operation, before the movement specified by a given

6.5

block is started, whether the tool enters the inhibited area defined by

STROKE LIMIT

stored stroke limit 1, 2, or 3 is checked by determining the position of the

CHECK PRIOR TO

end point from the current position of the machine and a specified amount

PERFORMING

of travel. If the tool is found to enter the inhibited area defined by a stored

stroke limit, the tool is stopped immediately upon the start of movement

MOVEMENT

for that block, and an alarm is displayed.

WARNING

Whether the coordinates of the end point, reached as a

result of traversing the distance specified in each block, are

in a inhibited area is checked. In this case, the path followed

by a move command is not checked. However, if the tool

enters the inhibited area defined by stored stroke limit 1, 2,

or 3, an alarm is issued.

(See the examples below.)

Example 1)

Inhibited area defined by

stored stroke limit 1 or 2

a

End point

Start point

The tool is stopped at point a according

to stored stroke limit 1 or 2.

Inhibited area defined by

stored stroke limit 1 or 2

End point

Immediately upon movement commencing

from the start point, the tool is stopped to

enable a stroke limit check to be performed

before movement.

576

B-63524EN/01

OPERATION

6. SAFETY FUNCTIONS

Example 2)

End point

Inhibited area defined by

stored stroke limit 2 or 3

a

The tool is stopped at point a according

Start point

to stored stroke limit 1 or 2.

Inhibited area defined by

stored stroke limit 2 or 3

End point

Immediately upon movement commencing

from the start point, the tool is stopped to

enable a stroke limit check to be performed

before movement.

Explanations

When a stroke limit check prior to movement is performed, whether to

check the movement performed by a G31 (skip) block and G37 (automatic

tool length measurement) block can be determined using NPC (bit 2 of

parameter No. 1301).

Limitations

D Machine lock

If machine lock is applied at the start of movement, no stroke limit check

made before movement is performed.

D G23

When stored stroke limit 2 is disabled (G23 mode), no check is made to

determine whether the tool enters the inhibited area defined by stored

stroke limit 2.

D Program restart

When a program is restarted, an alarm is issued if the restart position is

within a inhibited area.

D Manual intervention

When the execution of a block is restarted after manual intervention

following a feed hold

following a feed hold stop, no alarm is issued even if the end point after

stop

manual intervention is within a inhibited area.

D A block consisting of

If a block consisting of multiple operations (such as a canned cycle and

multiple operations

exponential interpolation) is executed, an alarm is issued at the start point

of any operation whose end point falls within a inhibited area.

577

6. SAFETY FUNCTIONS

OPERATION

B-63524EN/01

D Cyrindrical interpolation

In cylindrical interpolation mode, no check is made.

mode

D Polar coordinate

In polar coordinate interpolation mode, no check is made.

interpolation mode

D Slanted axis control

When the slanted axis control option is selected, no check is made.

D Simple synchronous

In simple synchronous control, only the master axis is checked; no slave

control

axes are checked.

D Drawing

During drawing (while only drawing (no machining) is being performed),

no check is made.

D PMC axis control

No check is made for a movement based on PMC axis control.

D Chuck/tailstock barrier

No check is made for a chuck/tailstock barrier area (lathe system).

D Synchronous mixed

No check is made for an axis placed in synchronous mixed mode

mode

(two-path lathe control).

Alarm

Number

Message

Contents

506

OVER TRAVEL :

The pre-movement stroke limit check reveals

+n

that the block end point enters the prohibited

area for the positive stroke limit along the n

axis. Correct the program.

507

OVER TRAVEL :

The pre-movement stroke limit check reveals

–n

that the block end point enters the prohibited

area for the negative stroke limit along the n

axis. Correct the program.

578

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