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FANUC Series 0i-MODEL F Plus. CONNECTION MANUAL (FUNCTION) - page 193

10. SPINDLE SPEED FUNCTION

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3715

NSAx

[Input type] Parameter input

[Data type] Bit axis

#0 NSAx

When a move command is executed for an axis, the spindle speed arrival signal SAR is:

Checked.

Not checked.

Set an axis for which the spindle speed arrival signal SAR need not be checked when a
move command is executed for the axis. When a move command is specified only for an
axis with this parameter set to 1, the spindle speed arrival signal SAR is not checked.

3716

A/Ss

[Input type] Parameter input

[Data type] Bit spindle

NOTE

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

#0 A/Ss

Spindle motor type is :

Analog spindle.

Serial spindle.

NOTE

1 The 1 analog spindle at the maximum can be controlled in a

system.

2 To use a serial spindle, set bit 5 (SSN) of parameter No. 8133 to 0.
3 When using an analog spindle, assign it at the end of the spindle

configuration.

3717

Spindle amplifier number to each spindle

NOTE

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

[Input type] Parameter input

[Data type] Byte spindle

[Valid data range] 0 to Maximum number of controlled axes

Set a spindle amplifier number to be assigned to each spindle.
0:

No spindle amplifier is connected.

Spindle motor connected to amplifier number 1 is used.

Spindle motor connected to amplifier number 2 is used.

to
n:

Spindle motor connected to amplifier number n is used.

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10. SPINDLE SPEED FUNCTION

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3718

Subscript for display of a serial spindle (main spindle) or analog spindle

3719

Subscript for display of a serial spindle (sub-spindle)

[Input type] Parameter input

[Data type] Byte spindle

[Valid data range] 0 to 122

Set a subscript to be added to spindle speed display on a screen such as the position
display screen.

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.

3721

Number of gear teeth on the position coder side

[Input type] Parameter input

[Data type] Word spindle

[Valid data range] 0 to 9999

Set the number of gear teeth on the position coder side in speed control (such as feed per
revolution).

3722

Number of gear teeth on the spindle side

[Input type] Parameter input

[Data type] Word spindle

[Valid data range] 0 to 9999

Set the number of gear teeth on the spindle side in speed control (such as feed per
revolution).

CAUTION

1 Parameter No.3721 and No.3722 can not be used for thread

cutting. If thread cutting was done by setting the any value on these
parameters, the correct screw can't be cut.
In the machine to do thread cutting, connect mechanically between
the spindle and position coder by the gear ratio=1:1. And these
parameters set the No.3721=0, No.3722=0.
(It is the setting for the gear ratio 1:1.)

2 Parameter No.3721 and No.3722 can not be used for Cs contour

control. If Cs contour control was done by setting the any value on
these parameters, spindle can’t move as commanded. In the
machine to do Cs contour control, connect mechanically between
the spindle and position coder by the gear ratio = 1:1. And these
parameters set the No.3721=0, No.3722=0. (It is the setting for the
gear ratio 1:1.)

10. SPINDLE SPEED FUNCTION

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3730

Data used for adjusting the gain of the analog output of spindle speed

[Input type] Parameter input

[Data type] Word spindle

[Unit of data] 0.1%

[Valid data range] 700 to 1250

Set data used for adjusting the gain of the analog output of spindle speed.

[Adjustment method]

<1> Assign standard value 1000 to the parameter.
<2> Specify the spindle speed so that the analog output of the spindle speed is the

maximum voltage (10 V).

<3> Measure the output voltage.
<4> Assign the value obtained by the following equation to parameter No. 3730.

Setting value = (10 (V) / Measured data (V))

1000

<5> After setting the parameter, specify the spindle speed so that the analog output of the

spindle speed is the maximum voltage. Confirm that the output voltage is 10V.

NOTE

This parameter needs not to be set for serial spindles.

3731

Compensation value for the offset voltage of spindle speed analog output

[Input type] Parameter input

[Data type] Word spindle

[Unit of data] Velo

[Valid data range] -1024 to 1024

Set a compensation value for the offset voltage of spindle speed analog output.
Setting = -8191

offset voltage (V)/12.5

[Adjustment method]

<1>  Assign standard value 0 to the parameter.
<2>  Specify the spindle speed so that the analog output of the spindle speed is 0.
<3>  Measure the output voltage.
<4>  Assign the value obtained by the following equation to parameter No. 3731.

Setting value =

-8191

Offset voltage (V)

12.5

<5> After setting the parameter, specify the spindle speed so that the analog output of the

spindle speed is 0. Confirm that the output voltage is 0V.

NOTE

This parameter needs not to be set for serial spindles.

3732

The spindle speed during spindle orientation or the spindle motor speed during spindle gear shift

[Input type] Parameter input

[Data type] 2-word path

[Valid data range] 0 to 20000

Set the spindle speed during spindle orientation or the spindle motor speed during gear
shift.
When bit 1 (GST) of parameter No. 3705 is set to 0, set the spindle speed during spindle
orientation in min

-1

When bit 1 (GST) of parameter No. 3705 is set to 1, set the spindle motor speed during
spindle gear shift calculated from the following formula.

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10. SPINDLE SPEED FUNCTION

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For a serial spindle

Setting value =

Spindle motor speed during spindle gear shift

16383

Maximum spindle motor speed

For an analog spindle

Setting value =

Spindle motor speed during spindle gear shift

4095

Maximum spindle motor speed

3735

Minimum clamp speed of the spindle motor

[Input type] Parameter input

[Data type] Word path

[Valid data range] 0 to 4095

Set the minimum clamp speed of the spindle motor.

Setting value =

Minimum clamp speed of the spindle motor

4095

Maximum spindle motor speed

3736

Maximum clamp speed of the spindle motor

[Input type] Parameter input

[Data type] Word path

[Valid data range] 0 to 4095

Set the maximum clamp speed of the spindle motor.

Setting value =

Maximum clamp speed of the spindle motor

4095

Maximum spindle motor speed

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

3740

Time elapsed prior to checking the spindle speed arrival signal

[Input type] Parameter input

[Data type] Word path

[Unit of data] msec

[Valid data range] 0 to 32767

Set the time elapsed from the execution of the S function up to the checking of the
spindle speed arrival signal.

10. SPINDLE SPEED FUNCTION

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3741

Maximum spindle speed for gear 1

3742

Maximum spindle speed for gear 2

3743

Maximum spindle speed for gear 3

3744

Maximum spindle speed for gear 4

[Input type] Parameter input

[Data type] 2-word spindle

[Unit of data] min

-1

[Valid data range] 0 to 99999999

Set the maximum spindle speed corresponding to 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
Max. speed
(Parameter
No.3741)

Gear 2
Max. speed
(Parameter
No.3742)

Gear 3
Max. speed
(Parameter
No.3743)

3751

Spindle motor speed when switching from gear 1 to gear 2

3752

Spindle motor speed when switching from gear 2 to gear 3

[Input type] Parameter input

[Data type] Word path

[Valid data range] 0 to 4095

For gear switching method B, set the spindle motor speed when the gears are switched.
Setting value =
(Spindle motor speed when the gears are switched / Maximum spindle motor speed)

4095

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10. SPINDLE SPEED FUNCTION

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Spindle motor max. clamp speed

Spindle speed
command
(S command)

Max. speed (4095, 10V)

Spindle motor minimum clamp speed

Spindle motor speed

Gear 1-2
change
point

Gear 2-3
change
point

Gear 1
max. speed
parameter
No.3741

Gear 2
max. speed
parameter
No.3742

Gear 3
max speed
parameter
No.3743

Parameter No.3736

Parameter No.3752

Parameter No.3751

Parameter No.3735

Speed at gear 2-3 change point

Speed at gear 1-2 change point

3753

Spindle speed when switching from gear 1 to gear 2

3754

Spindle speed when switching from gear 2 to gear 3

[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 (when bit 2 (SGB) of parameter
No. 3705 is set to 1) and bit 2 (MCH) of parameter No. 3790 is set to 1, each gear
switching point can be set by the spindle speed.

10. SPINDLE SPEED FUNCTION

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Spindle motor max. clamp speed

Spindle speed
command
(S command)

Max. speed (4095, 10V)

Spindle motor minimum clamp speed

Spindle motor speed

Gear 1-2
change
point
parameter
No.3753

Gear 2-3
change
point
parameter
no.3754

Gear 1
max. speed
parameter
No.3741

Gear 2
max. speed
parameter
No.3742

Gear 3
max speed
parameter
No.3743

Parameter No.3736

Parameter No.3752

Speed at gear 2-3 change point

Speed at gear 1-2 change point

3761

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

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.

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10. SPINDLE SPEED FUNCTION

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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

3772

Maximum spindle speed

[Input type] Parameter input

[Data type] 2-word spindle

[Unit of data] min

-1

[Valid data range] 0 to 99999999

This parameter sets the maximum spindle speed.
When a command specifying a speed exceeding the maximum speed of the spindle is
specified, or the speed of the spindle exceeds the maximum speed because of the spindle
speed override function, the spindle speed is clamped at the maximum speed set in the
parameter.

CAUTION

1 When 0 is set in this parameter, the speed of the spindle is not

clamped.

2 When spindle speed command control is applied using the PMC,

this parameter has no effect, and the spindle speed is not clamped.

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