FANUC Series 16i/160i/160is-MODEL B, Series 18i/180i/180is-MODEL B, Series 21i/210i/210is-MODEL B. MAINTENANCE MANAUL

9. DIGITAL SERVO

B-63525EN/02

9.5

αi SERVO WARNING

INTERFACE

General

The αi servo system can report the warning status before one of the

following target alarms occurs.

When the warning status is entered, a report to the PMC is issued.

For example, this signal can be used by the machine for retracting tools

from the time a warning occurs by the time a servo alarm occurs.

Signal

Servo warning detail

signals

SVWRN1 to 4

<F093#4 to #7>

[Classification] Output signal

[Function] Reports the warning signal corresponding to the state of the servo

amplifier.

[Output condition] The following table shows the warning statuses of the servo amplifier and

their corresponding warning signals.

Corresponding alarm messages

Warning status signals (F93)

Time from when a

warning state signal is

SVWRN4

SVWRN3

SVWRN2

SVWRN1

issued to until an alarm

(#7)

(#6)

(#5)

(#4)

occurs

444 n AXIS: INV. COOLING FAN FAILURE

One minute

601 n AXIS: INV. RADIATOR FAN FAILURE

Until overheat occurs

(inconstant)

443 n AXIS: CNV. COOLING FAN FAILURE

One minute

606 n AXIS: CNV. RADIATOR FAN FAILURE

Until overheat occurs

(inconstant)

431 n AXIS: CNV. OVERLOAD

One minute

607 n AXIS: CNV. SINGLE PHASE FAILURE

PSMR: Five seconds,

PSM: One minute

692

9. DIGITAL SERVO

B-63525EN/02

A timing chart for handling a warning is shown below.

Occurrence of a warning

Servo amplifier

SVWRN1-4

(Warning)

Perform deceleration stop or block stop

during this time period with the PMC to

stop the machine without damage. The

time period varies with the warning type.

Activation

Occurrence and stop of the

alarm corresponding to a

warning

Signal address

F903

SVWRN4

SVWRN3

SVWRN2

SVWRN1

693

9. DIGITAL SERVO

B-63525EN/02

9.6

αi SERVO

INFORMATION

SCREEN

General

In the αi servo system, ID information output from each of the connected

units is obtained and output to the CNC screen.

The units that have ID information are shown below.

(Remark: Some instances of these units do not have ID information.)

S Servo motor

S Pulse coder

S Servo amplifier module

S Power supply module

ID information is automatically read from each of the connected units

during first startup of the CNC and then recorded. During the second or

later startup, the ID information recorded during first startup can be

compared with the ID information read this time on the screen to check

whether the configuration of the connected units is changed. (If there is

a difference between them, the alarm mark (*) appears.)

The recorded ID information can be edited. Therefore, the ID information

of an unit that does not have ID information can be displayed. (However,

the alarm mark (*) indicating a difference between these IDs appears.)

Parameter

13112

SVI

IDW

[Data type] Bit

IDW The edit of the servo information screen or the spindle information screen

is:

0 : Prohibited

1 : Allowed

SVI The servo information screen is:

0 : Displayed

1 : Not displayed

694

9. DIGITAL SERVO

B-63525EN/02

Additional Information

Even if replacement is performed reasonably such as for

repairing, this function incorrectly indicates the * mark when

it detects the replacement.

To clear the * mark, follow the steps below to update the

registered data, as described in the editing section later.

(1)Make the registered data editable. (Parameter IDW (No.

13112#0) = 1)

(2)On the edit screen, place the cursor on the item from

which you want to delete the * mark.

(3)Operate the soft keys [CHANGE], [INPUT], and [SAVE]

in that order.

Editing the servo ID screen

Assume that parameter No.13112#0(IDW) = 1.

Press the MDI switch on the machine operator’s panel.

Follow the steps shown in ”Displaying the servo ID screen” to display

the screen as shown below.

To move the cursor on the screen, use the

and

keys.

696

9. DIGITAL SERVO

B-63525EN/02

Screen operation

Mode

Key operation

Use

Viewing

Page key

Scrolls up or down on a screen-by-screen basis.

(*1)

Editing

Soft key

(*2)

[INPUT]

Replace the selected ID information at the cursor posi-

tion with the character string in key-in buffer.

[CANCEL]

Deletes the character string in key-in buffer.

[CHANGE]

Transfers the selected ID information at the cursor posi-

tion that was sent by the servo, to key-in buffer. Only

the items preceded by * (*3) are valid.

[SAVE]

Saves the ID information that has been changed on the

servo information screen in flash ROM.

[RELOAD]

Cancels the ID information that has been changed on

the servo information screen and loads ID information

from flash ROM.

Page key

Scrolls up or down on a screen-by-screen basis.

Cursor key

Scrolls up or down the selection of ID information.

*1 Viewing mode: when parameter No.13112#0 = 0

*2 Editing mode: when parameter No.13112#0 = 1

*3 Servo information is stored in flash ROM. If there is a difference

between the servo information in flash ROM and the actual servo

information, the corresponding items are preceded by *.

Note

For axes that are not used by the αi servo system, ID information of

connected units cannot be obtained.

697

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

AC SPINDLE (SERIAL INTERFACE)

This chapter outlines the serial interface and analog interface spindle

amplifiers and explains related parameters.

10.1 AC SPINDLE (SERIAL INTERFACE)

699

10.1.1 Outline of Spindle Control

699

10.1.2 Spindle Setting and Tuning Screen

702

10.1.3 Automatic Setting of Standard Parameters

710

10.1.4 Warning Interface for the αi Spindle

711

10.1.5 αi Spindle Information Screen

713

10.2 AC SPINDLE (ANALOG INTERFACE)

717

10.2.1 Outline of Spindle Control

717

The following drawing number is indicated on the upper part of the

spindle unit of the serial interface spindle amplifier:

698

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

S instruction

M instruction

PMC

M03,M04,M05,M19

FIN

*SSTP(Spindle stop)

SOVx( Spindle override)

Motor speed

SF,GR1O,GR2O,GR3O

(For machining center)

GR1,GR2 (For lathe)

SOR( Orientation)

(PRM 3735 to 3752)

R010 to R120

Orientation speed

(PRM 3705#1, 3732,

R01I to R12I

3706#5)

SIND

Output polarity

SGN(0=+,1=-)

(PRM 3706#7,6)

SSIN

*ESP,MRDY,

SFR,SRV,ORCM

etc.

SST, SDT, SAR, LDT1,

LDT2, ORAR, ALM etc.

Interface

function

Optical cable

Serial spindle

Interface

amplifier

function

Spindle

Operator’s

motor

panel

Load meter

Speed meter

Spindle

700

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

10.1.1.1

Method A of gear change

Output

Motor speed

for machining

center

4095

Max

PRM 3736

Gear 2

Gear 3

Gear 1

PRM 3735

S code

PRM 3741

PRM 3742

PRM 3743

(min^-1)

10.1.1.2

Method B of gear change

Output

Motor speed

for machining

4095

Max

center (PRM 3705#2=1)

PRM 3736

PRM 3752

PRM 3751

Gear 1

Gear 2

Gear 3

PRM 3735

S code

PRM 3741

PRM 3742

PRM 3743

(min^-1)

10.1.1.3

For lathe

Output Motor speed

4095

Max

Gear 2

Gear 3

Gear 1

Gear 4

S code

PRM 3741

PRM 3742

PRM 3743

PRM 3744

701

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

10.1.2

Spindle Setting and

Tuning Screen

10.1.2.1

(1) Confirm the parameters

Display method

3111

SPS

Bit1 (SPS)

0 : The spindle tuning screen is not displayed.

1 : The spindle tuning screen is displayed.

(2) Press the

SYSTEM

key to select the screen for setting parameters and other

data.

(3) Press the continuous menu key

(4) Press the soft key [SP.PRM]. Then, the spindle setting and tuning

screen appears.

(5) The following screens are provided. These screens can be selected

using soft keys.

1) [SP.SET] : Spindle setting screen

2) [SP.TUN] : Spindle tuning screen

3) [SP.MON] : Spindle monitor screen

PAGE

(6) With the page keys

, a spindle to be displayed can be

PAGE

selected (only when multiple serial spindles are connected).

10.1.2.2

Spindle setting screen

SPINDLE SETTING

(1)GEAR SELECT

: 1

(2)SPINDLE

: S11

(PARAMETER)

(3)GEAR RATIO

(4)MAX SPINDLE SPEED

3000

(5)MAX MOTOR SPEED

6000

(6)MAX C AXIS SPEED

100

D Gear selection

The gear select status on the machine side is displayed.

Indication

CTH1

CTH2

702

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

D Spindle

Select a spindle for which data is to be set.

S11: Main spindle amplifier for the 1st spindle

S12: Subspindle amplifier for the 1st spindle

S21: Main spindle amplifier for the 2nd spindle

S22: Subspindle amplifier for the 2nd spindle

D Parameters

S11:1st Main

S12:1st Sub

S21:2nd Main

S22:2nd Sub

Gear ratio(HIGH)

4056

4216

Gear ratio(MIDIUM HIGH)

4057

Gear ratio(MIDIUM LOW)

4058

4217

Gear ratio(LOW)

4059

Max. spindle speed

3741

(gear1)

Max. spindle speed

3742

(gear2)

Max. spindle speed

3743

(gear3)

Max. spindle speed

3744

(gear4)

Max. motor speed

4020

4196

4020

4196

Max. C axis speed

4021

None

4021

None

10.1.2.3

Spindle tuning screen

SPINDLE TUNING

OPERATION

: SPEED CONTROL

GEAR SELECT

: 1

SPINDLE

: S11

(PARAMETER)

(MONITOR)

PROP.GAIN

MOTOR SPEED

100

INT.GAIN

SPINDLE SPEED 150

LOOP GAIN

3000

POS ERR S1

100

MOTOR VOLT

POS ERR S2

103

TIME CONST

100

SYN.ERR

REF. SHIFT

2046

D Operation mode

: Normal operation

: Orientation

: Synchronization control

: Rigid tapping

: Cs contour control

: Spindle positioning control

703

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

The displayed parameters vary depending on the operation mode.

D Displayed parameters

Spindle position-

Normal

Orientation

Synchronization

Rigid tapping

Cs contour

ing control

operation

control

Proportional gain

Integral gain

Loop gain

Motor voltage

Loop gain

Motor voltage

Regenerative power

Motor voltage

ZRN gain (%)

ORAR gain (%)

Acceleration/deceleration

ZRN gain

ZRN gain (%)

Shift reference position

Shift spindle stop position

constant (%)

Shift reference position

Note) For the parameter numbers corresponding to the displayed

parameter items, see Section 10.1.2.5.

D Displayed monitoring

The displayed monitoring items vary depending on the operation mode.

items

Spindle position-

Normal

Orientation

Synchronization

Rigid tapping

Cs contour

ing control

operation

control

Motor speed

Feedrate

Spindle speed

Position deviation S1

Position deviation S2

Position deviation Z

Synchronous deviation

Note 1)

|Spindle data|

Motor speed [min*1] +

Max. Motor speed.(* 1)

16383

(*1) Parameter 4020: Main spindleParameter 4196: Subspindle

Note 2) The spindle speed in Cs contour control mode is in degrees/min.

704

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

10.1.2.4

Spindle monitor screen

SPINDLE MONITOR SCREEN

ALARM

: AL-27(POSITION CODER DIS.)

OPERATION

: Cs AXIS OONTROL

SPINDLE SPEED : 100 DEG/MIN

MOTOR SPEED

: 150 RPM

100

150

200

LOAD METER (%)

JJJJJ

CONTROL INPUT : ORCM MRDY *ESP

CONTROL OUTPUT : SST SDT ORAR

D Spindle alarm

1: Motor overheated

2: Speed deviation excessive

3: Fuse blow of DC link

4: Fuse blow of AC inputline

5: Fuse blow of DC voltage

7: Excessive speed

9: Heat sink overheat

10: Low voltage of AC input

11: Excess voltage in DC link

12: Excess current in DC link

13: CPU internal data memory error

18: ROM SUM check error

19: U phase current offset excessive

20: V phase current offset excessive

24: Serial data transmission abnormal

25: Serial data transmission stop

26: Cs axis speed detecting signal failure

27: Position coder signal disconnection

28: Cs pos.detect signal disconnection

29: Short time overload

30: Input circuit excess current

31: Speed detecting signal disconnection

32: SLC LSI internal RAM abnormal

33: DC link charging insufficient

34: Parameter abnormal setting

35: Gear ratio data excessive

36: Error counter overflow

37: Speed detecting unit error setting

38: Magnetic sensor signal abnormal

39: Alarm of one revolution signal for Cs axis control is detected

40: Alarm of one revolution signal for Cs axis control is not detected

41: Erroneous detection of the position coder one revolution signal

42: Undetection of the position coder one revolution signal

46: Erroneous detection of the position coder one revolution signal on

threading

47: Abnormal position coder signal

48: Erroneous detection of position coder one revolution signal

705

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

D Operation

Following 6 modes are available:

a. Normal operation

b. Orientation

c. Synchronous operation

d. Rigid tapping

e. Cs contour cotrol

f. Spindle positioning control

D Load meter

The load meter displays spindle load in a unit of 10%.

1) Load meter[%] +^{Loadmeterdata}

Max.output value

32767

of load meter (*)

(*) PRM 4127: Main

PRM 4274: Sub.

D Control input signal

Max.10 signals those are ON are displayed from the following signals:

TLML

: Torque limit command (low)

SPSL

: Spindle selection signal

TLMH

: Torque limit command (high)

MCFN

: Power line switching

CTH1

: Gear signal 1

SOCN

: Soft start/stop cancel

CTH2

: Gear signal 2

RSL

: Output switching request

SRV

: Spindle reverse rotation

RCH

: Power line state confirm

SFR

: Spindle forward rotation

INDX

: Orientation stop pos.

ORCM

: Spindleorientation

change

MEDY

: Machine ready

ROTA

: Rotation direction of

ARST

: Alarm reset signal

ORCM

*ESP

: Emergency stop

NRRO

: Shor-cut of ORCM

INTG

: Speed integral control

signal

DEFM

: Referencial mode

command

D Control output signals

Max. 10 signals those are ON are displayed from the following signals:

ALM

: Alarm signal

TML5

: Torque limitation

SST

: Speed zero signal

ORAR : Orientation end signal

SDT

: Speed detecting signal

CHP

: Power line switched signal

SAR

: Speed arrival signal

CFIN

: Spindle switch complete

LDT1

: Load detecting signal 1

RCHP

: Output switch signal

LDT2

: Load detecting signal 2

RCFN

: Output switch complete

signal

706

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

10.1.2.5

Correspondence

between operation mode

and parameters on

spindle tuning screen

D Normal operation mode

S11:

S12:

S21:

S22:

1st Main

1st Sub

2nd Main

2nd Sub

Proportional gain(HIGH)

4040

4206

4040

4206

Proportional gain (LOW)

4041

4207

4041

4207

Integral gain(HIGH)

4048

4212

Integral gain(LOW)

4049

Motor voltage

4083

4236

4083

4236

Regenerative power

4080

4231

4080

4231

D Orientation mode

S11:

S12:

S21:

S22:

1st Main

1st Sub

2nd Main

2nd Sub

Proportionalgain(HIGH)

4042

4208

4042

4208

Proportional gain (LOW)

4043

4209

4043

4209

Integral gain(HIGH)

4050

4213

Integral gain(LOW)

4051

Loop gain (HIGH)

4060

4218

Loop gain (MID, HIGH)

4061

Loop gain (MID, LOW)

4062

4219

Loop gain (LOW)

4063

Motor voltage

4084

4237

4084

4237

Gain change upon completion

4064

4220

4064

4220

of orientation

Stop position shift

4077

4228

4077

4228

PC-type orientation stop posi-

4031

4204

4031

4204

tion

707

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

D Synchronization control

Numerals are parameter numbers :

mode

S11:

S12:

S21:

S22:

1st Main

1st Sub

2nd Main

2nd Sub

Proportional gain(HIGH)

4044

4210

4044

4210

Proportionalgain(LOW)

4045

4211

4045

4211

Integral gain(HIGH)

4052

4214

Integral gain(LOW)

4053

Position loop gain(HIGH)

4065

4221

4065

4221

Position loop gain(MID,HIGH)

4066

Position loop gain(MID,LOW)

4067

4222

4067

4222

Position loop gain(LOW)

4068

Motor voltage

4085

4238

4085

4238

Acc./Dec. time constant

4032

Shift amount

4034

D Rigid tapping mode

Numerals are parameter numbers :

S11:

S12:

S21:

S22:

1st Main

1st Sub

2nd Main

2nd Sub

Proportional gain(HIGH)

4044

4210

4044

4210

Proportionalgain(LOW)

4045

4211

4045

4211

Integral gain(HIGH)

4052

4214

Integral gain(LOW)

4053

Position loop gain(HIGH)

4065

4221

4065

4221

Position loop gain(MID,HIGH)

4066

Position loop gain(MID,LOW)

4067

4222

4067

4222

Position loop gain(LOW)

4068

Motor voltage

4085

4238

4085

4238

ZRN gain %

4091

4239

4091

4239

Grid shift amount

4073

4223

4073

4223

708

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

D Spindle contouring

Numerals are parameter numbers :

control mode

(Cs axis control)

S11:

S12:

S21:

S22:

1st Main

1st Sub

2nd Main

2nd Sub

Proportional gain(HIGH)

4046

Proportional gain (LOW)

4047

Integral gain(HIGH)

4054

Integral gain(LOW)

4055

Position loop gain(HIGH)

4069

Position loop gain(MID,HIGH)

4070

Position loop gain(MID,LOW)

4071

Position loop gain(LOW)

4072

Motor voltage

4086

ZRN gain %

4092

Reference position shift

4135

D Spindle positioning

control mode

S11:

S12:

S21:

S22:

1st Main

1st Sub

2nd Main

2nd Sub

Proportionalgain(HIGH)

4044

4210

4044

4210

Proportional gain (LOW)

4045

4211

4045

4211

Integral gain(HIGH)

4052

4214

Integral gain(LOW)

4053

Position loop gain(HIGH)

4065

4221

Position loop gain(MID,HIGH)

4066

Position loop gain(MID,LOW)

4067

4222

Position loop gain(LOW)

4068

Motor voltage

4085

4238

4085

4238

ZRN gain %

4091

4239

4091

4239

Reference position shift

4073

4223

4073

4223

709

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

10.1.3

The standard parameters related to each motor model can be set

automatically.

Automatic Setting of

D The specifications for controlling a motor depend on the specifications

Standard Parameters

defined by the machine tool builder. The parameters defined by the

machine tool builder are set as the standard values (initial values) by

this automatic setting function.

Therefore, when performing automatic operation, always set

parameters properly according to the parameter list (parameters

4000 and later).

1. Turn on the power in the emergency stop state.

2. Set bit 7 of parameter 4019 to 1.

4019

LDSP

Bit 7 (LDSP) The parameters for the serial interface spindle are:

0 : Not set automatically.

1 : Set automatically.

3. Set a motor model code.

4133

Motor model code

(Reference: Example of αi series motor model code)

Code

Motor mode

Amplifier

100

a 0.5 (3000/8000min^-1)

SPM-2.2

101

a 1 (3000/8000min^-1)

SPM-2.2

102

a 1.5 (1500/8000min^-1)

SPM-5.5

103

a 2 (1500/8000min^-1)

SPM-5.5

104

a 2/15000 (3000/15000min^-1)

SPM-5.5

105

a 3 (1500/8000min^-1)

SPM-5.5

106

a 6 (1500/8000min^-1)

SPM-11

107

a 8 (1500/6000min^-1)

SPM-11

108

a 12 (1500/6000min^-1)

SPM-15

109

a 15 (1500/6000min^-1)

SPM-22

110

a 18 (1500/6000min^-1)

SPM-22

111

a 22 (1500/6000min^-1)

SPM-26

112

a P8 (750/6000min^-1)

SPM-11

113

a P12 (750/6000min^-1)

SPM-11

114

a P15 (750/6000min^-1)

SPM-15

115

a P18 (750/6000min^-1)

SPM-15

116

a P22 (750/6000min^-1)

SPM-22

117

a P30 (575/4500min^-1)

SPM-22

4. Turn off the power then back on. Then, the parameters are read.

710

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

10.1.4

Warning Interface for

the αi Spindle

Overview

For the αi spindle, the warning state can be reported before an alarm is

issued. When the warning state is entered, a report to the PMC is sent.

For example, this signal can be used for retracting tools or reducing

cutting load from the time a warning occurs by the time an overheat alarm

occurs. In addition, diagnostic information also contains warning

numbers.

Signal

Spindle warning detailed

signals

SPWRN1 to 9

<F264#0 to #7, F265#0>

[Classification]

Output

[Function]

Reports the warning number corresponding to the state of the αi spindle

amplifier.

[Output condition]

When the αi spindle is in the warning state, a warning number consisting

of SPWRN1 to SPWRN9 is output as nine-bit binary data.

If warnings occurred on multiple αi spindle amplifiers, the warning

number of the αi spindle having the smallest axis number is output.

However, when there is no αi spindle or the system configuration of the

spindle includes an additional spindle that is older than the αi spindle, this

function is invalid for all spindles.

The warning numbers and their descriptions are shown below.

Warning

Contents

Details

number

Internal fan

If the internal fan stops, the warning signal is output.

stopped

Since the spindle continues to operate at this time,

use the PMC to perform processing as needed.

About one minute after the warning signal is output,

an alarm occurs.

Radiator cooling

If the radiator cooling fan stops, the warning signal is

fan stopped

output. Since the spindle continues to operate at this

time, use the PMC to perform processing as needed.

If the main circuit overheats, an alarm occurs.

Open-phase de-

If an open-phase is detected in the main power sup-

tected in the con-

ply, the warning signal is output. Since the spindle

verter main pow-

continues to operate at this time, use the PMC to per-

er supply

form processing as needed.

About one minute (for the PSM) or about five se-

conds (for the PSMR) after the warning signal is out-

put, an alarm occurs.

711

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

Warning

Contents

Details

number

Converter main

If the main circuit of the PSM is overloaded, the warn-

circuit overloaded

ing signal is output. Since the spindle continues to

operate at this time, use the PMC to perform proces-

sing as needed.

About one minute after the warning signal is output,

an alarm occurs.

Converter cooling

If the PSM cooling fan stops, the warning signal is

fan stopped

output. Since the spindle continues to operate at this

time, use the PMC to perform processing as needed.

About one minute after the warning signal is output,

an alarm occurs.

113

Converter radia-

If the PSM radiator cooling fan stops, the warning

tor cooling fan

signal is output. Since the spindle continues to oper-

stopped

ate at this time, use the PMC to perform processing

as needed.

If the PSM main circuit overheats, an alarm occurs.

Signal address

F264

SPWRN8

SPWRN7

SPWRN6

SPWRN5

SPWRN4

SPWRN3

SPWRN2

SPWRN1

F265

SPWRN9

Diagnosis screen

The status of a warning is displayed on the following diagnostic screen.

712

Warning status of first spindle

713

Warning status of second spindle

732

Warning status of third spindle

733

Warning status of fourth spindle

The number of a warning caused on each spindle is indicated.

If there is no warning, 0 is indicated.

NOTE

For spindles that are older than the αi spindle, this function

is invalid.

When the system configuration of the spindle (even another

spindle) includes an additional spindle that is older than the

αi spindle, this function is invalid.

712

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

10.1.5

αi Spindle Information

Screen

General

In the αi spindle system, ID information output from each of the

connected units is obtained and output to the CNC screen.

The units that have ID information are shown below.

(Remark: Some instances of these units do not have ID information.)

S Spindle motor

S Spindle amplifier

S Power supply module

ID information is automatically read from each of the connected units

during first startup of the CNC and then recorded. During second or later

startup, the ID information recorded during first startup can be compared

with the ID information read this time on the screen to check whether the

configuration of the connected units is changed. (If there is a difference

between them, the alarm mark (*) appears.)

The recorded ID information can be edited. Therefore, the ID information

of an unit that does not have ID information can be displayed. (However,

the alarm mark (*) indicating a difference between these IDs appears.)

Parameter

13112

SPI

IDW

[Data type] Bit

IDW The edit of the servo information screen or the spindle information screen

is:

0 : Prohibited

1 : Allowed

SPI The spindle information screen is:

0 : Displayed

1 : Not displayed

713

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

Displaying the spindle information screen

SYSTEM

Press the

function key, then press the [SYSTEM] soft key.

Press the [SP-INF] soft key to display the screen as shown below.

NOTE

Spindle information is stored in flash ROM. If there is a

difference between the spindle information in flash ROM

and the actual spindle information, the corresponding items

are preceded by *, as shown below.

714

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

Additional Information

Even if replacement is performed reasonably such as for

repairing, this function incorrectly indicates the * mark when

it detects the replacement.

To clear the * mark, follow the steps below to update the

registered data, as described in the editing section later.

(1)Make the registered data editable. (Parameter IDW (No.

13112#0) = 1)

(2)On the edit screen, place the cursor on the item from

which you want to delete the * mark.

(3)Operate the soft keys [CHANGE], [INPUT], and [SAVE]

in that order.

Editing the spindle information screen

Assume that parameter No.13112#0(IDW) = 1.

Press the MDI switch on the machine operator’s panel.

Follow the steps shown in ”Displaying the spindle ID screen” to

display the screen as shown below.

To move key-in buffer on the screen, use the

and

keys.

715

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

Screen operation on the editing screen

Mode

Key operation

Use

Viewing

Page key

Scrolls up or down on a screen-by-screen basis.

(*1)

Editing

Soft key

(*2)

[INPUT]

Replace the selected ID information at the cursor posi-

tion with the character string in key-in buffer.

[CANCEL]

Deletes the character string in key-in buffer.

[CHANGE]

Transfers the selected ID information at the cursor posi-

tion that was sent by the servo, to key-in buffer. Only

the items preceded by * (*3) are valid.

[SAVE]

Saves the ID information that has been changed on the

spindle information screen in flash ROM.

[RELOAD]

Cancels the ID information that has been changed on

the spindle information screen and loads ID information

from flash ROM.

Page key

Scrolls up or down on a screen-by-screen basis.

Cursor key

Scrolls up or down the selection of ID information.

*1 Viewing mode: when parameter No.13112#0 = 0

*2 Editing mode: when parameter No.13112#0 = 1

*3 Spindle information is stored in flash ROM. If there is a difference

between the spindle information in flash ROM and the actual spindle

information, the corresponding items are preceded by *.

CAUTION

For mixed connection of an αi spindle and a spindle that

does not belong to the αi spindle system, ID information of

connected units for serial spindle including ai spindles

cannot be obtained.

716

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

10.2.1.1

Block diagram

S command

M command

PMC

M03 to M05, M06, M19

CW/CCW command,

Spindle speed

orientation, etc.

conversion

FIN

Miscellaneous function end

Motor speed

*SSTP

Spindle stop

Gear 1

Gear 2

GR1O, GR2O, GR3O

Gear selection (16M/18M)

GR1, GR2

Gear information (16T/18T)

Maximum spindle speed and other

parameters

PRM 3714 to 3743, 3735, 3736,

3751 and 3752 (M series)

PRM 3741 to 3744 (T series)

*ESP, MRDY SAR, LDT

SFR, SRV

SST, ORAR

ORCM, TLM

SDT, ALM

Position coder interface

D/A converter

PRM 3730 (gain)

PRM 3731 (offset)

SVC

I/O card or I/O unit

Spindle amplifier

Operator’s panel

Spindle

motor

Load meter

Speed meter

Spindle

718

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

10.2.1.2

Calculation of S analog

voltage and related

parameters

[M series]

Gear change method A (bit 2 of parameter 3705 = 0)

SVC

Motor speed

Gear 1

Gear 2

Gear 3

(4095) 10V

Max

PRM 3736

PRM 3735

S code

PRM 3741

PRM 3742

PRM 3743

(min^-1)

Gear change method B (bit 2 of parameter 3705 = 1)

SVC Motor speed

Gear 1

Gear 2

Gear 3

(4095) 10V

Max

PRM 3736

PRM 3752

PRM 3751

PRM 3735

S code

PRM 3741

PRM 3742

PRM 3743

(min^-1)

[T series]

Constant surface speed control

SVC Motor speed

Gear 1

Gear 2

Gear 3

Gear 4

Max

(4095) 10V

S code

PRM 3741

PRM 3742

PRM 3743

PRM 3744

(min^-1)

719

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

3706

TCW

CWM

TCW

CWM

Sign of output voltage

Analog voltage (+) with both M03 and M04

Analog voltage (-) with both M03 and M04

(+) with M03, (-) with M04

(-) with M03, (+) with M04

[M series]

3705

SGB

Spindle speed set when gear change is performed is:

0 : Maximum speed for each gear.

1 : Set by respective parameters. (Parameters 3751, 3752)

3741

Max. spindle speed of gear 1 (1 to 9999) [min^-1]

3742

Max. spindle speed of gear 2 (1 to 9999) [min^-1]

3743

Max. spindle speed of gear 3 (1 to 9999) [min^-1]

3751

Spindle motor speed at the switch point between gear 1 and gear 2

3752

Spindle motor speed at the switch point between gear 2 and gear 3

[Data type]

Word

[Valid data range]

0 to 4095

Set a spindle motor speed at each gear switch point when gear switch

method B is used (when bit 2 (SGB) of parameter No. 3705 is set to 1).

Setting +^{Spindlemotorspeedatgearswitchpoint}

4095

Maximum spindle motor speed

3736

Upper limit of the output to the spindle motor

3735

Lower limit of the output to the spindle motor

Setting +^{Spindlespeed(upperlimitńlowerlimit)}

4095

Max. spindle speed

[T series]

3741

Max. spindle speed of gear 1 (1 to 9999) [min^-1]

3742

Max. spindle speed of gear 2 (1 to 9999) [min^-1]

3743

Max. spindle speed of gear 3 (1 to 9999) [min^-1]

3744

Max. spindle speed of gear 4 (1 to 9999) [min^-1]

720

10. AC SPINDLE (SERIAL INTERFACE)

B-63525EN/02

10.2.1.3

Tuning S analog voltage

(D/A converter)

(1) For M series, change the upper and lower limits as follows:

⋅ When gear change method A is used: Parameter 3736 = 4095,

parameter 3735 = 0

⋅ When gear change method B is used: Parameter 3751 = 4095,

parameter 3735 = 0

. For T series, these changes are not required.

(2) Tuning the D/A converter offset

Specify zero as the spindle speed. Then, by using a digital multimeter,

adjust the following parameter so that the voltage at the test pin DA2

on the spindle amplifier printed circuit board is 0 mV.

For M series

S0; (Specify the command by MDI operation, then press the cycle start button.)

For T series (in case of G-code system A)

G97 S0;

(Specify the command by MDI in the same manner as for M series.)

3731

Spindle speed (D/A converter) offset compensation value

(3) Tuning the D/A converter gain

Specify the maximum spindle speed of gear 1. Then, by using a digital

multimeter, adjust the following parameter so that the voltage at the

test pin DA2 on the spindle amplifier printed circuit board is 10.0 V.

For M series

Sxxxx ;

(xxxx is the value set in parameter 3741.)

(Specify the command by MDI operation, then press the cycle start button.)

3741

Max. spindle speed of gear 1 (1 to 9999) [min^-1]

For T series (in case of G-code system A)

G97 Sxxxx ;

(xxxx is the value set in parameter 3741.)

(Specify the command by MDI operation, then press the cycle start button.)

3741

Max. spindle speed of gear 1 (1 to 9999) [min^-1]

. Usually a voltage is output from the D/A converter by only

executing an S command. However, the clockwise rotation

command (M03) may be required on some machines.

721

FANUC Series 16i/160i/160is-MODEL B, Series 18i/180i/180is-MODEL B, Series 21i/210i/210is-MODEL B. MAINTENANCE MANAUL - page 25