FANUC Series 0i-MODEL F Plus. CONNECTION MANUAL (FUNCTION)

10. SPINDLE SPEED FUNCTION

B-64693EN-1/01

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Parameter list related to Normal rigid tapping

In case of the retraction of rigid tapping after the breakage of tool on cutting by Smart rigid tapping,
Normal rigid tapping is necessary even if Smart rigid tapping. To use Normal rigid tapping, the
setting of time constant parameter for acc./dec. is required. The following list shows the tuning
parameter for Normal rigid tapping. In case that the tuning for Normal rigid tapping has finished, it’s
not necessary to change these parameters. Regarding the detail of each parameter, refer to the
chapter of "Parameter" in this manual or the chapter of "Rigid tapping" in FANUC AC SPINDLE
MOTOR

series BUILT-IN SPINDLE MOTOR B

series parameter manual (B-65280EN).

Table 10.13.17 (e) Parameter list related to Normal rigid tapping

Parameter No.

Contents

5280
5281 to 5284

Position gain of tapping axis at rigid tapping
(No. 5284 is used for the T series only.)

5261
5262
5263
5264

Acc/Dec time constant
(No. 5264 is used for the T series only.)

5201#2
5271 to 5274

Time constant for acceleration/deceleration in rigid tapping extraction (No. 5274 is used for
the T series only.)

5203#2

Feed-forward function at rigid tapping

5310
5350
5354
5358

Allowable level of position error of tapping axis at moving

5311

Allowable level of position error of spindle at moving

5312
5352
5356
5360

Allowable level of position error of tapping axis at stop

5313

Allowable level of position error of spindle at stop

5203#5

Selection of bell shape acc./dec. for rigid tapping

5365
5366
5367
5368

Bell shape acc./ dec. time constant for rigid tapping
(No. 5368 is used for the T series only.)

4037

Velocity loop feed-forward coefficient

4344

Advanced preview feed-forward coefficient
(This parameter sets the coefficient for rapid traverse when bit 4 of parameter No. 4542 is
1.)

4542#4

Cutting feed/rapid traverse feed-forward function

4627

Advanced preview feed-forward coefficient for cutting feed
(This parameter is valid when bit 4 of parameter No. 4542 is 1.)

Restriction

If you use rough TTL resolution sensor such as

Positioncoder(4096pulse/rev) in spindle position

sensor, there is a possibility that the vibration or strange sound might be detected due to the
following movement of servo axis to rough feedback data. We don’t recommend to use such sensors
for Smart rigid tapping. Use analog 1Vpp sensor or serial type sensor.

You can’t use Smart rigid tapping in the following conditions.
-

Using sensor-less motors as spindle motor

Using Spindle differential speed control

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Smart rigid tapping becomes invalid in the following kinds of rigid tappings. In these cases, Normal
rigid tapping will be executed. When you use them, set some parameters such as time constant
which are shown in "Parameter list related to Normal rigid tapping".
-

Peck rigid tapping

Rigid tapping by manual handling feed

Extraction in rigid tapping

Rigid tapping using Spindle control by servo motor

Rigid tapping by analog spindle

In the situation that plural spindle axes are synchronized by Spindle command synchronous control
mode, Smart rigid tapping becomes invalid. PS0203 alarm "PROGRAM MISS AT RIGID
TAPPING" will occur.

Smart rigid tapping becomes invalid in the checking mode in manual handle retrace. In the mode,
Normal rigid tapping will be executed.

As Smart rigid tapping executes acc./dec. by spindle maximum power, Acc./dec. after interpolation
and Look-ahead acc./dec. before interpolation become invalid.

In Smart rigid tapping over-ride signals for feed axes *FV0-*FV7<Gn012> and over-ride cancel
signal OVC<Gn006.4> become invalid even if parameter OVS(No.5203#4)=1. Over-ride for
extraction of rigid tapping is valid.

In Smart rigid tapping the backlash compensation for spindle becomes invalid. The backlash
compensation for feed axis becomes valid.

Interlock and machine lock become invalid during smart rigid tapping. Axes become interlock state
or machine lock state after finishing Smart rigid tapping.

In Smart rigid tapping feed hold and single block become invalid. The axes don’t stop until the end
of 1cycle of tapping.

Reset and emergency stop during Smart rigid tapping make velocity command 0 stop.

It’s impossible to change feedrate by external deceleration during Smart rigid tapping. Feedrate at
starting cutting or extraction is maintained.

The following functions become invalid during Smart rigid tapping.
-

General purpose retract

Tool retract and recover

One-digit F code feed

Manual handle interrupt

When you use 3-dimensional rigid tapping, set D3R (Parameter No.11221#1) to “1”.

The following settings are not supported for Smart rigid tapping axis.
-

Slave axis of superimposed control

Slave axis of flexible synchronization control

Slave axis of electronic gear box

Alarm (SV0048) "SMART RIGID TAPPING STOP" will occur with the following alarms during
Smart rigid tapping and the excitation of servo motor will be turned off. Alarm (SV0048) can be
canceled with reset.
-

Alarm (SP9xxx) (when spindle motor is deactivated)

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Alarm (SP0741) (when synchronous error range exceeds the setting value of parameter
(No.5214))

When SRT(No.5206#1) is 1 and the spindle software, which doesn’t support Smart rigid tapping, is
used, alarm PS0564 "ILLEGAL COMMAND OF SMART RTAP" will occur at rigid tapping.

10.13.18

Parameter

2005

FEED

[Input type] Parameter input

[Data type] Bit axis

#1 FEED

Feed forward function is:

Disabled.

Enabled.

NOTE

Set 1 to the synchronizing servo axis with spindle axis on FSSB
high-speed rigid tapping.

In FSSB high-speed rigid tapping mode, the feed forward
coefficient becomes 100 percent.

NOTE

This parameter is initial setting parameter. For details, refer to the
appendix "Automatic setting / Initial setting parameter" in
CONNECTION MANUAL (FUNCTION) (B-64693EN-1).

2423

RGDBLA

[Input type] Parameter input

[Data type] Bit axis

#2 RGDBLA

Setting for the compensation of reverse operation in Smart rigid tapping

Compensation invalid

Compensation valid

2429

FHRSV

[Input type] Parameter input

[Data type] Bit axis

#1 FHRSV

Servo axis control of FSSB high-speed rigid tapping is:

Disabled.

Enabled.

NOTE

Set 1 to the synchronizing servo axis of a spindle axis on FSSB
high-speed rigid tapping.

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2610

Position control loop gain for the tapping axis in FSSB high-speed rigid tapping

[Input type] Parameter input

[Data type] Word axis

[Valid data range] 0 to 32767

The position control loop gain for the tapping axis (servo axis) in FSSB high-speed rigid
tapping can be set.
If the setting value of this parameter is 0, the position control loop gain is the same as the
position gain (parameters Nos.5280 to 5284) of conventional rigid tapping used by both
of servo axis and spindle axis.

2611

Coefficient of velocity feed-forward for feed axis in smart rigid tapping

[Input type] Parameter input

[Data type] Word axis

[Unit of data] 1%

[Standard setting] 0

Use this parameter to improve the axis response in case that the synchronous error is large
at the start point of tapping as follow figure. Increase this value to every 100 with
watching the synchronous error. There is a possibility that the torque command of servo
axis might become vibrating at acc./dec. if the value is too large.

主軸速度

主軸トルクコマンド

同期誤差

No.2611=0

No.2611=350

2613

Compensation of reverse operation in Smart rigid tapping

[Input type] Parameter input

[Data type] Word axis

[Unit of data] 0.01%

[Valid data range] 0 to 10000
[Standard setting] 0

Use this parameter to improve the axis response in case that the synchronous error
becomes large at the reversal point of tapping. Please increase this value to every 100
with watching the synchronous error.

同期誤差

主軸速度

No.2613=0

No.2613=700

Synchronous error

Spindle speed

Spindle torque command

Synchronous error

Spindle speed

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3702

EMS

[Input type] Parameter input

[Data type] Bit path

#1 EMS

The multi-spindle control is:

Used.

Not used.

3703

SPR

MPP

MPM

2P2

[Input type] Parameter input

[Data type] Bit

NOTE

When at least one of these parameters is set, the power must be
turned off before operation is continued.

#0 2P2

When a multi-path system is used, inter-path spindle control allows:

Configuration where the spindle that belongs to one path only is shared between
path 1 and path 2.

Configuration where the spindles that belong to path 1 and 2 are shared between the
two paths.

When the spindle that belongs to an arbitrary path is shared between arbitrary paths, set
bit 2 (MPM) of parameter No. 3703. (The meanings of signals used vary, so that ladder
program modifications need to be made.)

#2 MPM

When a multi-path system is used, the configuration allowed by inter-path spindle

control:
0:

Follows the setting of bit 0 (2P2) of parameter No. 3703.

Allows the sharing of the spindle that belongs to a path between arbitrary paths.

#3 MPP

In multi-spindle control, a spindle selection using a programmed command instead of

using the signals (SWS1 to SWS4<Gn027.0 to 2, Gn026.3>) is:
0:

Not made.

Made.

NOTE

When this parameter is set to 1, set parameter No. 3781 at the same
time.

#4 SPR

Rigid tapping with spindle of another path function is:

Not available.

Available.

The "rigid tapping with spindle of another path" function can be combined with the
address P-based spindle select function. This combination enables program commands (P
code) to be used to select a spindle in a path other than the command issuing path for
rigid tapping.

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3705

EVS

SGT

ESF

SFA

NSF

SGT

ESF

[Input type] Parameter input

[Data type] Bit path

#0 ESF

When the spindle control function (Spindle analog output or Spindle serial output) is used,

and the constant surface speed control function is used or bit 4 (GTT) of parameter No.
3706 is set to 1:
0:

S codes and SF are output for all S commands.

For the lathe system:

S codes and SF are not output for an S command in the constant surface speed
control (G96) mode and a command for maximum spindle speed clamping
(G92 S_; (G50 for G code system A)).

For the machining center system:

S codes and SF are not output for an S command in the constant surface speed
control (G96) mode.

NOTE

The operation of this parameter varies between the lathe system
and machining center system.
For the lathe system:

This parameter is valid when bit 4 (EVS) of parameter No. 3705
is set to 1.

For the machining center system:

For an S command for maximum spindle speed clamping
(G92 S_;), SF is not output, regardless of the setting of this
parameter.

#3 SGT

Gear switching method during tapping cycle (G84 and G74) is:

Method A (Same as the normal gear switching method)

Method B (Gears are switched during tapping cycle according to the spindle speed
set in parameters Nos. 3761 and 3762).

#4 EVS

When the spindle control function (Spindle analog output or Spindle serial output) is used,

S codes and SF are:
0:

Not output for an S command.

Output for an S command.

The output of S codes and SF for an S command in constant surface speed control mode
(G96), or for an S command used to specify maximum spindle speed clamping (G92 S_;
(G50 for G code system A)) depends on the setting of bit 0 (ESF) of parameter No. 3705.

#5 NSF

For the M series, when a T type gear is selected (with bit 4 (GTT) of parameter No. 3706

set to 1 or constant surface speed control is enabled (bit 0 (SSC) of parameter No. 8133 is
1)), and an S code is specified:
0:

SF is output.

SF is not output.

NOTE

This parameter does not affect S code output. For an S command
for maximum spindle speed clamping (G92 S_;), SF is not output,
regardless of the setting of this parameter.

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#6 SFA

The SF signal is output:

When gears are switched.

Irrespective of whether gears are switched.

3706

GTT

[Input type] Parameter input

[Data type] Bit path

#4 GTT

Spindle gear selection method is:

M type.

T type.

NOTE

1 This parameter is effected for M system.
2 M type

The gear selection signal is not input. The CNC selects a gear
based on the speed range of each gear set by a parameter
beforehand according to S codes, and the selected gear is posted
by outputting the gear selection signal. Moreover, the spindle
speed matching the gear selected by the output gear selection
signal is output.

T type

The gear selection signal is input. The spindle speed matching the
gear selected by this signal is output.

3 When the constant surface speed control is enabled (bit 0 (SSC) of

parameter No. 8133 is 1), T type is selected, regardless of
whether this parameter is specified.

4 When T type spindle gear switching is selected, the following

parameters have no effect:
No.3705#2(SGB), No.3751, No.3752,
No.3705#1(GST), No.3705#3(SGT), No.3761, No.3762,
No.3705#6(SFA), No.3735, No.3736
On the other hand, parameter No. 3744 becomes usable.

5 When multi spindle control is used, select to T type.

3720

Number of position coder pulses

NOTE

When this parameter is set, the power must be turned off before
operation is continued.

[Input type] Parameter input

[Data type] 2-word spindle

[Unit of data] Detection unit

[Valid data range] 1 to 32767

Set the number of position coder pulses.

3761

Spindle speed when switching from gear 1 to gear 2 during tapping

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3762

Spindle speed when switching from gear 2 to gear 3 during tapping

[Input type] Parameter input

[Data type] 2-word path

[Unit of data] min

-1

[Valid data range] 0 to 99999999

When method B is selected as the gear change method in the tapping cycle (when bit 3
(SGT) of parameter No. 3705 is set to 1), set the spindle speed at a change point of each
gear.

Spindle motor max. clamp speed
(Parameter No.3736)

Spindle speed
command
(S command)

Max. speed (4095, 10V)

Spindle motor minimum clamp speed
(Parameter No.3735)

Spindle motor speed

Gear 1-2
change point
parameter
No.3761

Gear 2-3
change point
parameter
No.3762

Gear 1
Max. speed
Parameter
No.3741

Gear 2
Max. speed
Parameter
No.3742

Gear 3
Max. speed
Parameter
No.3743

4000

RETSV

[Input type] Parameter input

[Data type] Bit spindle

#4 RETSV

Reference position return direction in the servo mode (rigid tapping, etc.)

The spindle returns to the reference position counterclockwise (CCW).

1: The spindle returns to the reference position clockwise (CW).

NOTE

This parameter is valid only when a serial spindle is used.

4073

Grid shift amount in the servo mode

[Input type] Parameter input

[Data type] Word spindle

FANUC Series 0i-MODEL F Plus. CONNECTION MANUAL (FUNCTION) - page 217