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FANUC Series 30i/300i/300is-MODEL A. Machining Center System. User's manual - page 285

A.PARAMETERS

APPENDIX

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19604

TPC

[Input type] Setting input

[Data type] Bit path

# 5

TPC

In the case that there is no address P at the start of tool center point

control (G43.4/G43.5), tool posture control
0: Does not work.
1: Works.

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19605

NSC

[Input type] Parameter input

[Data type] Bit path

# 0

NSC

For the machine type that has no rotation axis for rotating the tool

(when parameter No. 19680 is set to 12 to specify the table rotation
type), control point shifting in the tilted working plane command is:
0: Enabled.

Set bit 4 (SPR) and bit 5 (SVC) of parameter No. 19665.

1: Disabled.

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CAV

SPG

19607

CAV WCD

SPG

[Input type] Parameter input

[Data type] Bit path

# 1

SPG

To apply 3-dimensional tool compensation to a machine having a

table rotation axis, as the G code to be specified:
0: G41.2/G42.2 is used regardless of the machine type.
1: G41.4/G42.4 is used for a table rotation type machine;

G41.5/G42.5 for a mixed type machine.

# 3

WCD

This parameter specify a direction of compensation vector by a sign of

offset value in geinding-wheel wear compensation

Offset vale by D code

Minus Plus

Direction from
compensation center to
command end position.

Direction from command
end position to
compensation center

19607#3

Direction from command
end position to
compensation center

Direction from
compensation center to
command end position.

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A.PARAMETERS

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Compensation vector

Programmed path

Tool center path

Compensation
Center

Direction from compensation center to command end position

Compensation Vector

Programmed path

Tool center path

Compensation
center

Direction from command end position to compensation center

# 5

CAV

When an interference check finds that interference (overcutting)

occurred:
0: Machining stops with the alarm (PS0041).

(Interference check alarm function)

1: Machining is continued by changing the tool path to prevent

interference (overcutting) from occurring. (Interference check
avoidance function)

For the interference check method, see the descriptions of bit 1 (CNC)
of parameter No. 5008 and bit 3 (CNV) of parameter No. 5008.

A.PARAMETERS

APPENDIX

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19608

MIR PRI

DET NI5

[Input type] Parameter input

[Data type] Bit path

NI5

The interference check in 3-dimensional cutter compensation is

performed by:
0: Projecting a look-ahead command position onto a plane

perpendicular to the tool axis direction of a block for which
compensation is planned.

The interference check avoidance function cannot be used.

1: Projecting a look-ahead command position onto a plane that is

always perpendicular to the tool axis direction. When a table
rotation axis is present, checking is made in the table coordinate
system.

The interference check avoidance function can be used.

# 2

DET

When the programming coordinate system is fastened to the table in

tool center point control or 3-dimensional tool compensation, the
relative position and absolute position of a specified path are:
0: Displayed in the programming coordinate system (fastened to the

table).

1: Displayed in the workpiece coordinate system (not fastened to

the table).

# 5

PRI

Among multiple end point candidates that exist when a movement is

made on a rotation axis by a command such as I, J, and K when a
slanted surface machining command is specified under tool center
point control (type 2) or 3-dimensional tool compensation (type 2):
0: A combination in which the master (first rotation axis) makes a

smaller angular movement is selected for a machine of tool
rotation type or table rotation type. A combination in which the
table (second rotation axis) makes a smaller angular movement is
selected for a machine of composite type.

1: A combination in which the slave (second rotation axis) makes a

smaller angular movement is selected for a machine of tool
rotation type or table rotation type. A combination in which the
tool (first rotation axis) makes a smaller angular movement is
selected for a machine of composite type.

# 6

MIR

When programmable mirror image is applied to a linear axis in tool

center point control (type 2) or 3-dimensional tool compensation (type
2), mirror image is:
0: Not applied to a specified I, J, or K command
1: Applied to a specified I, J, or K command.

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A.PARAMETERS

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19631

Variation for determining an angle when the leading-edge offset function is

performed

[Input type] Parameter input

[Data type] Real axis

[Unit of data] degree

[Minimum unit of data] Depend on the increment system of the reference axis

[Valid data range] 9 digit of minimum unit of data (refer to standard parameter setting

table (A))
(When the increment system is IS-B, -999999.999 to +999999.999

）

In the leading-edge offset function is performed, this parameter sets
the range of variations applicable when the included angle of the tool
direction vector (VT) and the advancing direction vector (VM) is
determined to be 0

, 180

, or 90

For example, let the included angle between VT and VM be

≤

180) and the angle set in this parameter be

∆θ

is then determined as

follows:
If

≤

∆θ

= 0

(180-

∆θ

)

≤

180

= 180°

(90-

∆θ

)

≤

(90+

∆θ

)

= 90°

Normally, set a value around 1.0.

19632

Distance from a programmed point (pivot point) to tool center point position

(cutting point)

[Input type] Parameter input

[Data type] Real axis

[Unit of data] mm, inch (input unit)

[Minimum unit of data] Depend on the increment system of the reference axis

[Valid data range] 9 digit of minimum unit of data (refer to standard parameter setting

table (A))
(When the increment system is IS-B, -999999.999 to +999999.999

）

This parameter sets the distance from a programmed point to the
actual cutting point to perform vector calculation for 3-dimensional
cutter compensation at the tool center point.

When this parameter is set to 0, the tool center point is not supported
by the 3-dimensional cutter compensation function.

NOTE

This parameter can be rewritten only before the
3-dimensional cutter compensation mode is
entered.

A.PARAMETERS

APPENDIX

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19635

Angle used as a criterion for the interference check in 3-dimensional cutter

compensation

[Input type] Setting input

[Data type] Real axis

[Unit of data] degree

[Minimum unit of data] Depend on the increment system of the reference axis

[Valid data range] 9 digit of minimum unit of data (refer to standard parameter setting

table (A))
(When the increment system is IS-B, -999999.999 to +999999.999

）

In 3-dimensional cutter compensation, if the difference in angle
between two tool direction vectors is equal to or greater than the
setting of this parameter, the tool direction is determined to have been
changed.
When 0 is set, 45 degrees is assumed.

Let two tool direction vectors be Va and Vb. Then, if the difference in
angle is

degrees or greater as shown in the figure below, the tool

direction vector is determined to have changed.

degrees

19636

Angle used to determine whether to execute the interference

check/avoidance function of 3-dimensional tool compensation machining

[Input type] Setting input

[Data type] Real path

[Unit of data] deg

[Minimum unit of data] Depend on the increment system of the reference axis

[Valid data range] 9 digit of minimum unit of data (refer to standard parameter setting

table (A))
The interference check/avoidance function of 3-dimensional tool
compensation machining is executed when the angle difference
between the tool direction vectors for the target two points is less than
the setting.

This parameter is valid when bit 1 (NI5) of parameter No. 19608 is set
to 1. When the setting is 0, the angle is assumed to be 10.0 degrees.

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A.PARAMETERS

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19658

Angular displacement of a rotation axis

[Input type] Parameter input

[Data type] Real axis

[Unit of data] deg

[Minimum unit of data] Depend on the increment system of the applied axis

[Valid data range] 9 digit of minimum unit of data (refer to standard parameter setting

table (B))
(When the increment system is IS-B, -999999.999 to +999999.999)
This parameter sets the coordinate of a rotation axis, among the
rotation axes determining the tool axis direction, which is not
controlled by the CNC for the tool axis direction tool length
compensation function. Whether this parameter is valid or invalid is
determined by the setting of bit 1 (RAP) of parameter No. 19650.

19659

Offset value for the angular displacement of a rotation axis

[Input type] Parameter input

[Data type] Real axis

[Unit of data] deg

[Minimum unit of data] Depend on the increment system of the applied axis

[Valid data range] 9 digit of minimum unit of data (refer to standard parameter setting

table (A))
(When the increment system is IS-B, -999999.999 to +999999.999)
An offset can be applied to the angular displacement for the tool axis
direction tool length compensation function to compensate for the
move direction.

19660

Origin offset value of a rotation axis

[Input type] Parameter input

[Data type] Real axis

[Unit of data] deg

[Minimum unit of data] Depend on the increment system of the applied axis

[Valid data range] 9 digit of minimum unit of data (refer to standard parameter setting

table (A))
(When the increment system is IS-B, -999999.999 to +999999.999)
This parameter sets an angular displacement shifted from the origin
for a rotation axis for the tool axis direction tool length compensation
function.

A.PARAMETERS

APPENDIX

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19661

Rotation center compensation vector in tool axis direction tool length

compensation

[Input type] Parameter input

[Data type] Real axis

[Unit of data] mm, inch (machine unit)

[Minimum unit of data] Depend on the increment system of the applied axis

[Valid data range] 9 digit of minimum unit of data (refer to standard parameter setting

table (A))
(When the increment system is IS-B, -999999.999 to +999999.999)
This parameter sets the vector from the first rotation axis center to the
second rotation axis center for the tool axis direction tool length
compensation function.

19662

Spindle center compensation vector in tool axis direction tool length

compensation

[Input type] Parameter input

[Data type] Real axis

[Unit of data] mm, inch (machine unit)

[Minimum unit of data] Depend on the increment system of the applied axis

[Valid data range] 9 digit of minimum unit of data (refer to standard parameter setting

table (A))
(When the increment system is IS-B, -999999.999 to +999999.999)
This parameter sets the compensation vector for the spindle center for
the tool axis direction tool length compensation function.

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A.PARAMETERS

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19665

SVC

SPR

[Input type] Parameter input

[Data type] Bit path

# 4

SPR

The controlled point is shifted by:

0: Automatic

calculation.

1: Using parameter No. 19667.

Bit 5 (SVC) of

parameter No.

19665

Bit 4 (SPR) of

parameter No.

19665

Shift of controlled point

Shift is not performed as not done conventionally.

1 0

The controlled point is shifted according to the result of the following
automatic calculation:
- (Intersection offset vector between the tool axis and the first rotation axis of
the tool + intersection offset vector between the second and first rotation axes
of the tool + tool holder offset (parameter No. 19666))
(See the figure below.)

1 1

The controlled point is shifted.
As the shift vector, the vector set in parameter No. 19667 is used.

Shift of controlled point

Tool length offset

Tool holder offset

Controlled-point shift vector

Tool center point

Controlled point

Second rotary axis of tool

First rotary axis of tool

[Controlled-point shift vector when automatically calculated]

# 5

SVC

The controlled point is:

0: Not

shifted.

1: Shifted.
The method of shifting is specified by bit 4 (SPR) of parameter No.
19665.

NOTE

When the machine has no rotation axis for rotating
the tool (when parameter No. 19680 is set to 12 to
specify the table rotation type), the controlled point
is not shifted regardless of the setting of this
parameter.

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