FANUC Series 0i-MODEL F Plus. CONNECTION MANUAL (FUNCTION) - page 216

10. SPINDLE SPEED FUNCTION

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10.13.16.1

Change the combination for FSSB high-speed rigid tapping

Outline

In FSSB high-speed rigid tapping, the combination of spindle axis and servo axis to synchronize can be
changed after power-on.

Explanation

This function makes it possible to choose whether to use parameter No.24204 or No.24208 by PMC input
signals to change the combination of spindle axis and servo axis to synchronize.

Spindle/Servo axes combination change (Parameter change from No.24204 to

No.24208)

Set Spindle/Servo axis combination change signal SPSVS<G0518.6> from “0” to “1”. After the change
of spindle/servo axes combination completes, Spindle/Servo axis combination change status signal
SPSVSS<F0537.1> is set from “0” to “1”.

NOTE

The alarm (DS0092) “SV/SP COMBINATION ERROR” issues in the following
cases.
- Parameter No.24208 is an illegal setting.
- The function using parameter No.24204 (FSSB high-speed rigid tapping,

Servo/Spindle synchronous control (FSSB type), Electronic gear box (FSSB
type)) is being applied.

- Rigid tapping, Servo/Spindle synchronous control or Electronic gear box is

being applied in the path that uses parameter No.24208.

Time chart

Spindle/Servo axes combination change (Parameter change from No.24208 to

No.24204)

Set Spindle/Servo axis combination change signal SPSVS<G0518.6> from “1” to “0”. After the change
of spindle/servo axes combination completes, Spindle/Servo axis combination change status signal
SPSVSS<F0537.1> is set from “1” to “0”.

Spindle/Servo axis
combination change signal
SPSVS<G0518.6>

Effective parameter

Spindle/Servo axis
combination change
status signal
SPSVSS<F0537.1>

No.24204

No.24208

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NOTE

The alarm (DS0092) “SV/SP COMBINATION ERROR” issues in the following
cases.
- The function using parameter No.24208 (FSSB high-speed rigid tapping,

Servo/Spindle synchronous control (FSSB type), Electronic gear box (FSSB
type)) is being applied.

- Rigid tapping, Servo/Spindle synchronous control or Electronic gear box is

being applied in the path that uses parameter No.24204.

Time chart

Spindle/Servo axes combination update (Update of parameter No.24208)

Set Spindle/Servo axis combination update signal SPSVU<G0518.7> from “0” to “1” with Spindle/Servo
axis combination change status signal SPSVSS<F0537.1> equal to “1”. After the update of spindle/servo
axes combination completes, Spindle/Servo axis combination update complete signal SPSVUC<F0537.2>
is set to “1”.

NOTE

The alarm (DS0092) “SV/SP COMBINATION ERROR” issues in the following
cases.
- Parameter No.24208 is an illegal setting.
- The function using parameter No.24208 (FSSB high-speed rigid tapping,

Servo/Spindle synchronous control (FSSB type), Electronic gear box (FSSB
type)) is being applied.

- Rigid tapping, Servo/Spindle synchronous control or Electronic gear box is

being applied in the path that uses parameter No.24208.

Spindle/Servo axis
combination change signal
SPSVS<G0518.6>

Effective parameter

Spindle/Servo axis
combination change
status signal
SPSVSS<F0537.1>

No.24208

No.24204

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Time chart

Signal

Spindle/Servo axis combination change signal SPSVS<G0518.6>

[Classification] Input signal

[Function] This signal changes the combination of spindle axis and servo axis to synchronize.

[Operation] When setting this signal from “0” to “1”, the parameter to set the combination of spindle

axis and servo axis to synchronize is changed from No.24204 to No.24208.

When setting this signal from “1” to “0”, the parameter to set the combination of spindle

axis and servo axis to synchronize is changed from No.24208 to No.24204.

Spindle/Servo axis combination update signal SPSVU<G0518.7>

[Classification] Input signal

[Function] This signal updates the combination of spindle axis and servo axis to synchronize

(Parameter No.24208).

[Operation] When setting this signal from “0” to “1”, the combination of spindle axis and servo axis

to synchronize (Parameter No.24208) is updated. This signal is valid when Spindle/Servo
axis combination change status signal SPSVSS<F0537.1> is equal to “1”.

Spindle/Servo axis combination change status signal SPSVSS<F0537.1>

[Classification] Output signal

[Function] This signal indicates the status of the change in the combination of spindle axis and servo

axis to synchronize.

[Output condition] This signal is set to “1” in the following case:

- When the parameter to set the combination of spindle axis and servo axis to synchronize

is changed to No.24208 by Spindle/Servo axis combination change signal
SPSVS<G0518.6>.

This signal is set to “0” in the following case:

Spindle/Servo axis
combination update signal
SPSVU<G0518.7>

Effective parameter

Spindle/Servo axis
combination update
complete signal
SPSVUC<F0537.2>

Parameter No.24208

before rewrite

Parameter No.24208

after rewrite

Spindle/Servo axis
combination change signal
SPSVS<G0518.6>

Spindle/Servo axis
combination change
status signal
SPSVSS<F0537.1>

Rewrite parameter No.24208

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- When the parameter to set the combination of spindle axis and servo axis to synchronize

is changed to No.24204 by Spindle/Servo axis combination change signal
SPSVS<G0518.6>.

- When the combination of spindle axis and servo axis to synchronize is not changed by

Spindle/Servo axis combination change signal.

Spindle/Servo axis combination update complete signal SPSVUC<F0537.2>

[Classification] Output signal

[Function] This signal indicates that the combination of spindle axis and servo axis to synchronize

(Parameter No.24208) has completed being updated.

[Output condition] This signal is set to “1” in the following case:

- When the combination of spindle axis and servo axis to synchronize (Parameter

No.24208) is updated by Spindle/Servo axis combination update signal
SPSVU<G0518.7>.

This signal is set to “0” in the following case:

- When Spindle/Servo axis combination update signal SPSVU<G0518.7> is set to “0”.

Signal address

G0518

SPSVU

SPSVS

F0537

SPSVUC

SPSVSS

Notes

When the alarm (DS0092) "SV/SP COMBINATION ERROR" is issued, the combination of spindle
axis and servo axis is not updated and remains in the last status.

When controlling Spindle/Servo axis combination change signal SPSVS<G0518.6> or
Spindle/Servo axis combination update signal SPSVU<G0518.7> during operation, use M codes that
do not perform Buffering.

Parameter No.24204 can be replaced with parameter No.24208 by this function when applying the
functions that use parameter No.24204, other than FSSB high-speed rigid tapping.

When applying this function, check the ready status with All-spindle operation ready signal
SRSRDY<F0034.7> after power-on.

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10.13.17

Smart Rigid Tapping

Outline

Smart rigid tapping is the tapping function that uses maximum spindle power in all speed range. As the
servo axis follows spindle axis with using FSSB communication, the synchronous error is small.
The fastest rigid tapping can be achieved with no parameter tuning basically.

Fig. 10.13.17 (a) Smart rigid tapping

Application example of smart rigid tapping (Pitch 1mm, Length25mm)

Before applying Smart rigid tapping

After applying Smart rigid tapping

Fig. 10.13.17 (b) Application example of smart rigid tapping

Spindle speed

At extraction :
Same movement as cutting

Full torque acceleration
in velocity control

Velocity control

Deceleration by tolerable acc. in position control

Detecting
torelable acceleraion

Bottom of tap

Time

Pos. ctrl.

Velocity control

Spindle speed
(2000min

-1

/div)

Servo speed
(200min

-1

/div)

Spindle torque
command (100%/div)

Synchronous error (50pulse/div)

Acc/Dec by spindle maximum power

Keeping the small synchronous error
even in short cycle time

25% reduced (ex.)

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Program Format

The program format for Smart rigid tapping is same as ordinal rigid tapping. But if the moving distance of
tapping is larger than over 4096 times of screw pitch, the alarm PS0564, "ILLEGAL COMMAND OF
SMART RTAP" will occur.

DI/DO Signals and Sequence

The DI/DO signals and PMC sequence for ordinal rigid tapping can be used without any change. There is
no special DI/DO signals and PMC sequence for Smart rigid tapping.
Regarding DI/DO signals and PMC sequence, refer to the chapter of "Signal" and "Timing Charts for
Rigid Tapping Specification" in this manual.

Parameters

Settings for FSSB high-speed rigid tapping

Set all parameters related to FSSB high-speed rigid tapping so that the servo axis follows spindle
axis. The detail of setting parameters are shown in the chapter of "FSSB high-speed rigid tapping"
and "Parameter" in this manual.

Table 10.13.17 (a) Settings for FSSB high-speed rigid tapping

Parameter No.

Contents

Setting value

2005#1

Feed-forward function bit (Servo)

2429#1

FSSB high-speed rigid tapping function bit (Servo)

2610

Position gain of servo axis during FSSB high-speed rigid tapping

5000

4549#1

FSSB high-speed rigid tapping function bit (Spindle)

24203#0

FSSB high-speed rigid tapping function bit (CNC)

24204

The index number of the spindle axis that synchronizes to each
servo axis

Depends on

configuration

Settings for Smart rigid tapping

After setting of following parameters the settings for Smart rigid tapping will be finished in case that
the settings for Normal rigid tapping has been already done. In case that the settings for Normal rigid
tapping has not been done yet, do it with referring to 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 (b) Settings for Smart rigid tapping

Parameter No.

Contents

Setting value

5206#1

Smart rigid tapping function bit

2423#2

Setting for the compensation of reverse operation in Smart rigid
tapping

5214

Setting of an allowable rigid tapping synchronous error range

4105
4107

Time constant of magnetic flux for Magnetic flux control

Specific

parameter

for each motor

4661

Tolerable error value at spindle stop

Settings for Each Machine

As Smart rigid tapping accelerates by maximum spindle power, the tuning is not necessary basically. But
there may be some cases that a shock occurs in servo axis which follows spindle acc./dec. by maximum
power. In such case, use following parameters.

Parameters for tuning Smart rigid tapping

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Table 10.13.17 (c) Parameters for tuning Smart rigid tapping

Parameter No.

Contents

Setting value

4666
4667

Bell shape acc./dec. time constant for Smart rigid tapping

4668
4669

Upper limit of torque command for Smart rigid tapping

4395#5

Improvement of deceleration for Smart rigid tapping

4790

Lower limit of torque command for Smart rigid tapping in position
control

2611

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

2613

Compensation of reverse operation in Smart rigid tapping

Settings for Smart thermal control

As Smart rigid tapping uses maximum spindle power in tapping, there is a possibility that the motor
overheat alarm (SP9001) might occur in severe duty tapping.

Smart thermal control uses the spindle motor power at the best without motor overheat.

Regarding the detail of Smart thermal control, refer to FANUC AC SPINDLE MOTOR

series

BUILT-IN SPINDLE MOTOR B

series parameter manual (B-65280EN).

Settings for rigid tapping during dry run

Rigid tapping during dry run can be selected by bit 2 (NSD) of parameter No.5206 from Smart rigid
tapping or ordinal FSSB high-speed rigid tapping. Set 1 to bit 2 (NSD) of parameter No.5206 which
is described below if you make override effective during dry run.

Bit 2 (NSD) of parameter No.5206 is 0

Rigid tapping during dry run is Smart rigid tapping.

Feedrate cannot be changed by manual feedrate override signal *JV0 to *JV15<Gn010,

Gn011> or manual rapid traverse selection signal RT<Gn019.7>.

If dry run is canceled during Smart rigid tapping in dry run, feedrate is maintained until

finishing tapping.

If dry run is switched during Smart rigid tapping, feedrate is maintained until finishing

tapping.

Bit 2 (NSD) of parameter No.5206 is 1

Rigid tapping during dry run is ordinal FSSB high-speed rigid tapping.

Feedrate can be changed by manual feedrate override signal *JV0 to *JV15<Gn010,

Gn011> or manual rapid traverse selection signal RT<Gn019.7>.

If dry run is canceled during FSSB high-speed rigid tapping in dry run, feedrate is

changed from dry run feedrate to feedrate commanded in machining program.

If dry run is switched during Smart rigid tapping, Smart rigid tapping is continued and

feedrate is maintained until finishing tapping.

Acc./dec. time constant setting is necessary because ordinal FSSB high-speed rigid

tapping is executed during dry run. Adjustment of optimal time constant is unnecessary. Set
relative long time constant such as 500[msec] to parameter No.5261 to No.5264. Refer to
"Parameter list related to Normal rigid tapping" for detail.

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Tuning of Rigid Tapping

Common used parameter list

The following parameter list show the common used parameters both for Normal rigid tapping and
Smart 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 (d) Common used parameter list

Parameter No.

Contents

5210

Rigid tapping mode specification M code

5202#0

Whether to perform orientation (reference position return) when starting rigid tapping

5221
5222
5223
5224

Teeth number of spindle side at arbitrary gear ratio (command) setting
(No. 5224 is used for the T series only.)

5231
5232
5233
5234

Teeth number of position coder side at arbitrary gear ratio (command) setting
(No. 5234 is used for the T series only.)

5241
5242
5243
5244

Spindle maximum speed at rigid tapping
(No.5244 is used for the T series only.)

5200#4

Override selection at extracting

5211

Override value at extracting

5300
5302
5304
5306

In-position width of tapping axis

5301

In-position width of spindle

4000#4

Reference position return direction on servo mode

4002#5

Whether to enable the rotation direction signal (SFR/SRV) on servo mode

4006#7

Setting of the command arbitrary gear ratio function (CMR) on rigid tapping

4017#7

Shortcut function when orientation is specified in stop state

4044
4045

Velocity loop proportional gain on servo mode
(It is selected by input signal CTH1A/B.)

4052
4053

Velocity loop integral gain on servo mode
(It is selected by input signal CTH1A/B.)

4056 to 4059

Gear ratio between spindle and motor
(It is selected by input signal CTH1A or CTH2A)

4065 to 4068

Spindle position gain on servo mode/spindle synchronous control
(It is selected by input signal CTH1A or CTH2A)

4073

Grid shift amount on servo mode

4074

Reference position return speed on servo mode

4091

Position gain change ratio at reference position return time on servo mode

4099

Delay time for stable motor excitation

4171
4173

Denominator of an arbitrary gear ratio between the motor sensor and spindle
(It is selected by input signal CTH1A or CTH2A.)

4172
4174

Numerator of an arbitrary gear ratio between the motor sensor and spindle
(It is selected by input signal CTH1A or CTH2A.)

4406

Acceleration/deceleration time constant for Cs contouring control/servo mode

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