FANUC Series 0i-MODEL D, FANUC Series 0i Mate-MODEL D. MAINTENANCE MANUAL

9.AC SPINDLE

B-64305EN/03

Spindle alarm

Motor overheat

Converter DC link overvoltage

Spindle sensor one-rotation signal

Excessive speed deviation

ITP signal error I

undetected

DC link fuse blown

ITP signal error II

Spindle sensor signal error

Input fuse blown

Overload current alarm

Radiator cooling fan stopped

Temperature sensor disconnection

Power line switch state error

SSM error

Excessive speed

Internal cooling fan stopped

Abnormal rotation

Main circuit overload

Excessive converter deceleration

Magnetic pole position count error

DC link overvoltage

power

Velocity command dependent

DC link overcurrent

Converter main circuit overload

acceleration

CPU internal data memory error

Converter cooling fan stopped

110

Error in communication between

Amplifier ID not registered

Alarm of position feedback error

amplifiers

Output switch/spindle switch alarm

between semi-closed and closed

111

Converter control power supply

RAM error

modes

undervoltage

Amplifier ID data error

Travel distance error during

112

Excessive converter regenerative

Sum check error

magnetic pole determination

power

Excessive U phase current offset

Error in communication between

113

Converter cooler radiation fan

Excessive V phase current offset

spindle amplifiers

stopped

Position sensor polarity setting error

Reference position return command

120

Communication data alarm

Spindle amplifier overload current

error in FSC/EGB mode

121

Communication data alarm

Transfer data error/stop

Safety speed exceeded

122

Communication data alarm

Position coder disconnection

Axis data error

123

Spindle switch circuit error

Short-time overload

Safety parameter error

124

Invalid speed specified for

Input section overcurrent

Motor speed found mismatching

learning control

Speed detection disconnection

Motor sensor disconnection

125

Invalid degree of dynamic

Transfer RAM error

CPU test alarm

characteristic compensation

DC link charge error

CRC test alarm

element for learning control

Parameter setting error

Safety function unexecuted

126

Spindle speed exceeded

Error counter overflow

Axis number found mismatching

127

Invalid learning cycle

Speed detector setting error

Safety parameter found

128

Excessive speed deviation alarm

Position coder one-rotation signal

mismatching

on spindle synchronous control

detection error

Initial test operation error

129

Excessive positional deviation

Position coder one-rotation signal

Alarm in spindle amplifier

alarm on spindle synchronous

undetected

communication destination

control

Signal of the differential speed

Motor sensor one-rotation signal

130

Speed polarity error in torque

control position coder disconnected

detection error

tandem operation

Threading position sensor

Motor sensor one-rotation signal

131

Spindle adjustment function alarm

one-rotation signal detection error

undetected

132

Serial data error

Position coder signal error

Motor sensor signal error

133

Data transfer error

: Overflow of converted motor speed

Spindle sensor disconnection

134

Soft phase

for differential spindle speed control

Spindle sensor one-rotation signal

135

Safety speed zero monitoring

Excessive speed command

detection error

error

calculation value under spindle

136

Safety speed zero monitoring

synchronization

mismatch

137

Device communication error

139

Pulse error

140

Count error

141

Serial sensor one-rotation signal

undetected

Operation

Following 6 modes are available:

Normal operation

Orientation

Synchronous control

Rigid tapping

Cs contour control

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B-64305EN/03

9.AC SPINDLE

Spindle positioning control (T series)

Load meter

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

Load meter data

× Max. output value of load

Load meter [%] =

32767

meter (*)

(*) Parameter No. 4127: High-speed winding

Parameter No. 4093: Low-speed winding

Control input signal

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

TLML

Torque limit command (low)

*ESP

Emergency stop

TLMH

Torque limit command (high)

SOCN

Soft start/stop

CTH1

Gear signal 1

RSL

Output switching request

CTH2

Gear signal 2

RCH

Power line state confirm

SRV

Spindle reverse rotation

INDX

Orientation stop pos. change

SFR

Spindle forward rotation

ROTA

Rotation direction of ORCM

ORCM

Spindle orientation

NRRO

Short-cut of ORCM

MRDY

Machine ready

INTG

Speed integral control signal

ARST

Alarm reset signal

DEFM Differential mode command

Control output signals

Signals those are ON are displayed from the following signals:

ALM

Alarm signal

LDT2

Load detecting signal 2

SST

Speed zero signal

TLM5

Torque limitation

SDT

Speed detecting signal

ORAR

Orientation end signal

SAR

Speed arrival signal

RCHP

Output switch signal

LDT1

Load detecting signal 1

RCFN Output switch complete signal

9.1.2.5 Correspondence between operation mode and parameters on

spindle tuning screen

Normal operation mode

S11:

S21:

S31:

1st spindle

2nd spindle

3rd spindle

Proportional gain (HIGH)

4040

Proportional gain (LOW)

4041

Integral gain (HIGH)

4048

Integral gain (LOW)

4049

Motor voltage

4083

Regenerative power

4080

Orientation mode

S11:

S21:

S31:

1st spindle

2nd spindle

3rd spindle

Proportional gain (HIGH)

4042

Proportional gain (LOW)

4043

Integral gain (HIGH)

4050

Integral gain (LOW)

4051

Loop gain (HIGH)

4060

Loop gain (MED.HIGH)

4061

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9.AC SPINDLE

B-64305EN/03

S11:

S21:

S31:

1st spindle

2nd spindle

3rd spindle

Loop gain (MED.LOW)

4062

Loop gain (LOW)

4063

Motor voltage

4084

Gain change upon completion of orientation

4064

Stop position shift

4077

PC-type orientation stop position

4031

Synchronization control mode

S11:

S21:

S31:

1st spindle

2nd spindle

3rd spindle

Proportional gain (HIGH)

4044

Proportional gain (LOW)

4045

Integral gain (HIGH)

4052

Integral gain (LOW)

4053

Loop gain (HIGH)

4065

Loop gain (MED.HIGH)

4066

Loop gain (MED.LOW)

4067

Loop gain (LOW)

4068

Motor voltage

4085

Acc./Dec. time constant

4032

Shift amount

4034

Rigid tapping mode

S11:

S21:

S31:

1st spindle

2nd spindle

3rd spindle

Proportional gain (HIGH)

4044

Proportional gain (LOW)

4045

Integral gain (HIGH)

4052

Integral gain (LOW)

4053

Loop gain (HIGH)

4065

Loop gain (MED.HIGH)

4066

Loop gain (MED.LOW)

4067

Loop gain (LOW)

4068

Motor voltage

4085

ZRN gain %

4091

Grid shift amount at servo mode

4073

Cs contour control mode

S11:

S21:

S31:

1st spindle

2nd spindle

3rd spindle

Proportional gain (HIGH)

4046

Proportional gain (LOW)

4047

Integral gain (HIGH)

4054

Integral gain (LOW)

4055

Loop gain (HIGH)

4069

Loop gain (MED.HIGH)

4070

Loop gain (MED.LOW)

4071

Loop gain (LOW)

4072

Motor voltage

4086

ZRN gain %

4092

Reference position shift

4135

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B-64305EN/03

9.AC SPINDLE

Spindle positioning control mode (T series)

S11:

S21:

S31:

1st spindle

2nd spindle

3rd spindle

Proportional gain (HIGH)

4044

Proportional gain (LOW)

4045

Integral gain (HIGH)

4052

Integral gain (LOW)

4053

Loop gain (HIGH)

4065

Loop gain (MED.HIG)

4066

Loop gain (MED.LOW)

4067

Loop gain (LOW)

4068

Motor voltage

4085

ZRN gain %

4091

Reference position shift

4073

9.1.3

Automatic Setting of Standard Parameters

The standard parameters related to each motor model can be set automatically.

* The specifications used to control the motor vary with the machine tool builder, but this function

also sets the parameters that determine the specifications to their default values (initial values) again.

Therefore, be sure to set the parameters correctly again with reference to a list of parameters Nos.

4000 to 4999 before performing automatic operation.

Turn on the power in the emergency stop state.

Set bit 7 of parameter 4019 to 1.

4019

LDSP

[Input type] Parameter input

[Data type] Bit spindle

#7 LDSP The parameters for the serial interface spindle are:

0: Not set automatically.

1: Set automatically.

Set a motor model code.

4133

Motor model code

Code

Motor model

Amplifier

336

βiI 3/10000 (2000/10000min^-1)

βiSVSP*-7.5

337

βiI 3/10000 (2000/10000min^-1)

βiSVSP*-11

338

βiI 3/10000 (2000/10000min^-1)

βiSVSP*-15

333

βiI 6/10000 (2000/10000min^-1)

βiSVSP*-11

339

βiI 6/10000 (2000/10000min^-1)

βiSVSP*-15

341

βiI 8/10000 (2000/10000min^-1)

βiSVSP*-11

342

βiI 8/10000 (2000/10000min^-1)

βiSVSP*-15

343

βiI 12/8000 (2000/8000min^-1)

βiSVSP*-15

350

βiIP 15/6000 (1200/6000min^-1)

βiSVSP*-11

351

βiIP 15/6000 (1200/6000min^-1)

βiSVSP*-15

353

βiIP 18/6000 (1000/6000min^-1)

βiSVSP*-11

352

βiIP 18/6000 (1000/6000min^-1)

βiSVSP*-15

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9.AC SPINDLE

B-64305EN/03

Code

Motor model

Amplifier

301

αiI 0.5/10000 (3000/10000min^-1)

αiSP2.2

302

αiI 1/10000 (3000/10000min^-1)

αiSP2.2

304

αiI 1.5/10000 (1500/10000min^-1)

αiSP5.5

305

αiI 1.5/15000 (3000/150000min^-1)

αiSP15

306

αiI 2/10000 (1500/10000min^-1)

αiSP5.5

307

αiI 2/15000 (3000/15000min^-1)

αiSP22

308

αiI 3/10000 (1500/10000min^-1)

αiSP5.5

309

αiI 3/12000 (1500/12000min^-1)

αiSP11

310

αiI 6/10000 (1500/10000min^-1)

αiSP11

311

αiI 0.5/10000HV (3000/10000min^-1)

αiSP5.5HV

312

αiI 8/8000 (1500/8000min^-1)

αiSP11

313

αiI 1/10000HV (3000/10000min^-1)

αiSP5.5HV

314

αiI 12/7000 (1500/7000min^-1)

αiSP15

315

αiI 1.5/10000HV (1500/10000min^-1)

αiSP5.5HV

316

αiI 15/7000 (1500/7000min^-1)

αiSP22

317

αiI 2/10000HV (1500/10000min^-1)

αiSP5.5HV

318

αiI 18/7000 (1500/7000min^-1)

αiSP22

319

αiI 3/10000HV (1500/10000min^-1)

αiSP5.5HV

320

αiI 22/7000 (1500/7000min^-1)

αiSP26

321

αiI 6/10000HV (1500/10000min^-1)

αiSP11HV

322

αiI 30/6000 (1150/6000min^-1)

αiSP45

323

αiI 40/6000 (1500/6000min^-1)

αiSP45

324

αiI 50/4500 (1150/4500min^-1)

αiSP55

325

αiI 8/8000HV (1500/8000min^-1)

αiSP11HV

326

αiI 12/7000HV (1500/7000min^-1)

αiSP15HV

327

αiI 15/7000HV (1500/7000min^-1)

αiSP30HV

328

αiI 22/7000HV (1500/7000min^-1)

αiSP30HV

329

αiI 30/6000HV (1150/6000min^-1)

αiSP45HV

401

αiI 6/12000 (1500/12000, 4000/12000min

^-1)

αiSP11

402

αiI 8/10000 (1500/10000, 4000/10000min^-1)

αiSP11

403

αiI 12/10000 (1500/10000, 4000/10000min^-1)

αiSP15

404

αiI 15/10000 (1500/10000, 4000/10000min^-1)

αiSP22

405

αiI 18/10000 (1500/10000, 4000/10000min^-1)

αiSP22

406

αiI 22/10000 (1500/10000, 4000/10000min^-1)

αiSP26

407

αiIP 12/6000 (500/1500, 750/6000min^-1)

αiSP11

408

αiIP 15/6000 (500/1500, 750/6000min^-1)

αiSP15

409

αiIP 18/6000 (500/1500, 750/6000min^-1)

αiSP15

410

αiIP 22/6000 (500/1500, 750/6000min^-1)

αiSP22

411

αiIP 30/6000 (400/1500, 575/6000min^-1)

αiSP22

412

αiIP 40/6000 (400/1500, 575/6000min^-1)

αiSP26

413

αiIP 50/6000 (575/1500, 1200/6000min^-1)

αiSP26

414

αiIP 60/4500 (400/1500, 750/4500min^-1)

αiSP30

415

αiI 100/4000HV (1000/3000, 2000/4000min^-1)

αiSP75HV

418

αiIP 40/6000HV (400/1500, 575/6000min^-1)

αiSP30HV

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

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B-64305EN/03

9.AC SPINDLE

9.1.4

Warning Interface

Overview

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 SPWRN9 <F264.0 to F264.7, 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.

The warning numbers and their descriptions are shown below.

Warning

Contents

Details

number

Motor overheat

When the motor temperature increases beyond the overheat warning

detection level (set by a parameter), a warning signal is output. At this

time, spindle operation is continued. So, perform necessary processing

with the PMC.

An alarm is issued when the motor temperature has reached the

overheat alarm detection level.

Open-phase detected in the

If an open-phase is detected in the main power supply, the warning

converter main power supply

signal is output. Since the spindle continues to operate at this time,

use the PMC to perform processing as needed.

About one minute (for the αiPS) or about five seconds (for the αiPSR)

after the warning signal is output, an alarm occurs.

Temperature sensor error

Coolant entered the spindle motor, probably reducing insulating

resistance. Remove coolant. Take measures to prevent coolant

from entering the motor. If insulating resistance is in advanced

stages, the motor needs to be replaced.

Internal fan stopped

If the internal fan stops, the warning signal is 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.

Converter main circuit

If the main circuit of the Power Supply (PS) is overloaded, the warning

overloaded

signal is 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.

Converter cooling fan stopped

If the Power Supply (PS) cooling fan stops, the warning signal is

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.

Radiator cooling fan stopped

If the radiator cooling fan stops, the warning signal is 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.

113

Converter radiator cooling fan

If the Power Supply (PS) radiator cooling fan stops, the warning signal

stopped

is output. Since the spindle continues to operate at this time, use the

PMC to perform processing as needed.

If the Power Supply (PS) main circuit overheats, an alarm occurs.

- 349 -

9.AC SPINDLE

B-64305EN/03

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 spindle

[Data type] Word spindle

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

If there is no warning, 0 is indicated.

9.1.5

Spindle Information Screen

Overview

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.

• Spindle amplifier (SP)

• Power Supply (PS)

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

[Input type] Parameter input

[Data type] Bit path

#0 IDW Editing on the servo or spindle information screen is:

0: Prohibited.

1: Not prohibited.

#2 SPI The servo information screen is:

0: Displayed.

1: Not displayed.

Displaying the spindle information screen

Press the

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

Press the [SPINDLE] soft key to display the screen as shown below.

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9.AC SPINDLE

B-64305EN/03

Editing the spindle information screen

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

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

Follow the steps shown in "Displaying the spindle information screen" to display the screen as

shown below.

To move the cursor on the screen, use cursor keys

Screen operation

Mode

Key operation

Use

Viewing (*1)

Page key

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

Editing (*2)

Soft key

[INPUT]

Replace the selected ID information at the cursor position with the character string

in key-in buffer.

[CANCEL]

Deletes the character string in key-in buffer.

[READ ID]

Transfers the ID information the connected device at the cursor has to the 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 bit 0 (IDW) of parameter No. 13112 = 0

*2 Editing mode: when bit 0 (IDW) of parameter No. 13112 = 1

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

screen and the actual ID information, the corresponding items are preceded by *.

- 352 -

10.TROUBLESHOOTING

B-64305EN/03

10 TROUBLESHOOTING

This chapter describes troubleshooting procedure.

10.1 CORRECTIVE ACTION FOR FAILURES

355

10.1.1 INVESTIGATING THE CONDITIONS UNDER WHICH FAILURE OCCURRED...355

10.2 NO MANUAL OPERATION NOR AUTOMATIC OPERATION CAN BE EXECUTED

356

10.3 JOG OPERATION CANNOT BE DONE

359

10.4 HANDLE OPERATION CANNOT BE DONE

362

10.5 AUTOMATIC OPERATION CANNOT BE DONE

367

10.6 CYCLE START LED SIGNAL HAS TURNED OFF

372

10.7 NOTHING IS DISPLAYED ON THE LCD WHEN THE POWER IS TURNED ON

373

10.8 INPUT FROM AND OUTPUT TO I/O DEVICES CANNOT BE PERFORMED

INPUT/OUTPUT CANNOT BE PERFORMED PROPERLY

374

10.9 IN A CONNECTOR PANEL I/O UNIT, DATA IS INPUT TO AN UNEXPECTED

ADDRESS

376

10.10 IN A CONNECTOR PANEL I/O UNIT, NO DATA IS OUTPUT TO AN EXPANSION UNIT 377

10.11 ALARM SR0085 TO SR0087 (READER/PUNCHER INTERFACE ALARM)

378

10.12 ALARM PS0090 (REFERENCE POSITION RETURN IS ABNORMAL)

381

10.13 ALARM DS0300 (REQUEST FOR REFERENCE POSITION RETURN)

383

10.14 ALARM SV0401 (V READY OFF)

384

10.15 ALARM SV0404 (V READY ON)

386

10.16 ALARM SV0462 (SEND CNC DATA FAILED)

ALARM SV0463 (SEND SLAVE DATA FAILED)

386

10.17 ALARM SV0417 (DIGITAL SERVO SYSTEM IS ABNORMAL)

387

10.18 ALARM OH0700 (OVERHEAT: CONTROL UNIT)

387

10.19 ALARM OH0701 (OVERHEAT: FAN MOTOR)

387

10.20 ALARM SV5134 (FSSB: OPEN READY TIME OUT)

ALARM SV5137 (FSSB: CONFIGURATION ERROR)

ALARM SV5197 (FSSB: OPEN TIME OUT)

388

10.21 ALARM SV5136 (FSSB: NUMBER OF AMPS IS SMALL)

388

10.22 SERVO ALARMS

389

10.23 SPC ALARMS

391

10.24 SPINDLE ALARMS

391

10.25 SYSTEM ALARMS

391

10.25.1 OVERVIEW

391

10.25.2 OPERATIONS ON THE SYSTEM ALARM SCREEN

393

10.25.3 SYSTEM ALARMS DETECTED BY HARDWARE

396

SYSTEM ALARM 401 (EXTERNAL BUS INVALID ADDRESS)

397

SYSTEM ALARM 403 (S-BUS TIME OUT ERROR)

398

SYSTEM ALARM 404 (ECC UNCORRECTABLE ERROR)

399

SYSTEM ALARM 500 (SRAM DATA ERROR(SRAM MODULE))

400

SYSTEM ALARM 502 (NOISE ON POWER SUPPLY)

401

SYSTEM ALARM 503 (ABNORMAL POWER SUPPLY MODULE)

402

10.25.4 SYSTEM ALARMS 114 TO 137 (ALARMS ON THE FSSB)

402

10.26 SYSTEM ALARMS RELATED TO THE PMC AND I/O Link

404

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B-64305EN/03

10.TROUBLESHOOTING

10.1 CORRECTIVE ACTION FOR FAILURES

When a failure occurs, it is important to correctly grasp what kind of failure occurred and take appropriate

action, to promptly recover the machine.

Check for the failure according to the following procedure :

When?

With what operation?

What failure?

Grasp the kind of failure

↓

Appropriate action

↓

Recovery

10.1.1 Investigating the Conditions under which Failure Occurred

(1) When and how many times (frequency of occurrences)

(2) With what operation

(3) What failure occurred

When did the failure occur?

•

Date and time?

•

Occurred during operation? (how long was the operation?)

•

Occurred when the power was turned on?

•

Was there any lightening surge, power failure, or other disturbances to the power supply?

How many times has it occurred

•

Only once?

•

Occurred many times ? (How many times per hour, per day, or per month?)

With what operation did it occur ?

•

What was the NC mode when the failure occurred?

Jog mode, memory operation mode, MDI mode, reference position return mode and so on

•

If during program operation,

(1) Where in the program ?

(2) Which program No. and sequence No. ?

(3) What program ?

(4) Occurred during axial movement ?

(5) Occurred during the execution of an M/S/T code ?

(6) Failure specific to the program ?

•

Does the same operation cause the same failure ?

(Check the repeatability of the failure.)

•

Occurred during data input/output ?

•

For a failure related to servo

(1) Occurred at both low feedrate and high feedrate ?

(2) Occurred only for a certain axis ?

•

For a failure related to spindle

(1) When did the failure occur ? (during power-on, acceleration, deceleration, or constant

rotation)

What failure occurred ?

•

Which alarm was displayed on the alarm display screen?

(Check the axis along which an alarm has occurred for alarms SV alarms, OT alarms, or SP

alarms.)

- 355 -

10.TROUBLESHOOTING

B-64305EN/03

•

Is the screen correct ?

•

If machining dimensions are incorrect

(1) How large is the error ?

(2) Are the coordinates (dimensions) of the position display screen also incorrect?

(3) Are the offsets correct ?

Other information

•

Is there noise origin around machine?

If the failure has not occurred frequently, the cause may be external noise to the power supply

or inductive noise on machinery cables.

Operate other machines connected to the same power line and see if noise come from the relays

or compressors.

•

Is it taken any countermeasure for noise in machine side?

See Item, “COUNTERMEASURES AGAINST NOISE.”

•

Check the following for the input power supply voltage :

(1) Is there variation in the voltage ?

(2) Are the voltages different depending on the phase ?

(3) Is the standard voltage supplied ?

•

How high is the ambient temperature of the control unit?

Refer to manual about noise.

•

Has excessive vibration been applied to the control unit?

When you contact FANUC

•

Check the following.

(1) Name of the NC unit

(2) Name of the machine tool builder and type of machine

(3) Software series/version of the NC

(4) Specifications of the servo amplifier and motor

(for a failure related to the servo)

(5) Specifications of the spindle amplifier and spindle motor

(for a failure related to a spindle)

•

See the drawing issued by the machine tool builder for the locations

of the

NC unit and

servo/spindle amplifiers.

•

We use the following specification codes :

(1) Servo/spindle amplifier

: A06B-xxxx-Hxxx

(2) Servo/spindle motor

: A06B-xxxx-Bxxx

NOTE

The mark ‘x’ represents a number.

10.2 NO MANUAL OPERATION NOR AUTOMATIC OPERATION

CAN BE EXECUTED

Points

(1) Check whether position display shows correct position

(2) Check CNC status display

(3) Check CNC internal status using diagnosis function

Causes and Countermeasures

Position display (relative, absolute, machine coordinate) does not change

(1) Check CNC status display (Refer to Section 1.4, “CNC STATE DISPLAY” for detail.)

(a) Check the emergency stop state (the emergency stop signal is on).

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B-64305EN/03

10.TROUBLESHOOTING

If status display shows EMG the emergency stop signal is input. Check the following signal

using the PMC's diagnosis function (PMCDGN).

X0008

*ESP

G0008

*ESP

*ESP :

ESP=0 indicates that emergency stop signal is input.

(b) Check the reset state (a reset is on).

When RESET is displayed, any of a reset is functioned. Check the following signal using the

PMC's diagnosis function (PMCDGN).

(i)

Check the input signal from PMC.

G0008

ERS

RRW

ERS : When ERS is 1, external reset signal is input.

RRW : When RRW is 1, reset & rewind signal is input.

(ii) Check the RESET key on the MDI keyboard.

When the signals in 1) are 0, <RESET> key may be functioning. Check the contact of

<RESET> key using a tester.

When it is abnormal, change the keyboard.

(c)

Confirm the status of modes

Operation mode status is displayed on the lower part of screen as follows :

If nothing is displayed, mode select signal is not input. Check mode select signal using PMC's

diagnosis function (PMCDGN).

For details, refer to section 1.4, “CNC STATE DISPLAY”.

(Example of display)

JOG : Manual operation (JOG) mode

HND: Manual handle (MPG) mode

MDI : Manual data input (MDI) mode

MEM : Automatic operation (Memory) mode

EDIT : EDIT (Memory edit) mode

G0043

MD4

MD2

MD1

↓

Manual operation (JOG) mode

Manual handle (MPG) mode

Manual data input (MDI) mode

Automatic operation (Memory) mode

EDIT (Memory edit) mode

(2) Check diagnosis functions 0000 and 1010 of the CNC. Check the items for which 1 is displayed at

right side.

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Items with (a) to (d) relate with manual and automatic operation and its detail is shown below.

(a)

In-position check is being done

It shows that positioning is not yet completed. Check the contents of the following diagnosis

number. (It is 1 in the following condition)

DGN0300

Position Error > Parameter No.1826

In-position width

(i)

Check the parameters according to the parameter list.

1825

Servo loop gain per axis

(Normal : 3000)

(b)

Jog feedrate override is 0%

Check the signals using the PMC's signal status screen.

G0010

*JV7

*JV6

*JV5

*JV4

*JV3

*JV2

*JV1

*JV0

G0011

*JV15

*JV14

*JV13

*JV12

*JV11

*JV10

*JV9

*JV8

When the override is 0% all bits of the above address becomes

1111

1111 or 0000

0000.

*JV15

*JV0

Override

1111 1111 1111 1111

0.00%

1111 1111 1111 1110

0.01%

1101 1000 1110 1111

100.00%

0000 0000 0000 0001

655.34%

0000 0000 0000 0000

0.00%

(c)

Interlock or start lock signal is input

There are a plural interlock signals. Check at first which interlock signal is used by the machine

tool builder at the parameters shown below.

DAU

DIT

ITX

ITL

3003

DIT

ITX

ITL

#0 (ITL) ITL=0 shows interlock signal *IT is effective. To i)

#2 (ITX) ITX=0 shows interlock signal *ITn is effective. To ii)

#3 (DIT) DIT=0 shows interlock signal +MITn/-MITn is effective. To iii)

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#4 (DAU) Interlock signal +MITn/-MITn is

0:Valid only in manual operation

1:Valid either manual operation or automatic operation To iii)

Check the interlock signals selected by the above parameters on the PMC signal status screen.

(i)

Interlock signals (*IT, *CSL, and *BSL) are input.

G0008

*BSL

*CSL

*IT

*IT=0, *CSL=0, and *BSL=0 show that interlock signal is input.

(ii) Axis interlock signal (*ITn) is input.

G0130

*IT5

*IT4

*IT3

*IT2

*IT1

*ITn=0 shows interlock signal is input.

(iii) Axis interlock signal (+MITn/-MITn) is input.

M series

G0132

+MIT5

+MIT4

+MIT3

+MIT2

+MIT1

G0134

-MIT5

-MIT4

-MIT3

-MIT2

-MIT1

+MITn/-MITn=1 shows interlock signal is input.

T series

X004

-MIT2

+MIT2

-MIT1

+MIT1

X013

-MIT2^#2

+MIT2^#2

-MIT1^#2

+MIT1^#2

+MITn/-MITn=1 shows interlock signal is input.

(d) The NC is in the reset state.

In this state, "RESET" is display as the state indication of the previous item 1-(1)-(b). So, not

only manual operation but also all automatic operations are disabled. So, referring to the

Section 10.2, "Manual and Automatic Operations are Disabled", make an investigation.

When machine coordinate value does not update on position display

Machine lock signal (MLK/MLKn) is input.

G0044

MLK

G0108

MLK5

MLK4

MLK3

MLK2

MLK1

MLK : All axes machine lock

MLKn : Each axis machine lock

When the signal is 1, the corresponding machine lock signal is input.

10.3 JOG OPERATION CANNOT BE DONE

Points

(1) Check whether position display is operating.

(2) Check CNC status display.

(3) Check internal status using Diagnostic function.

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Causes and Countermeasures

Position display (relative, absolute, machine coordinate) does not change

(1) Check mode selection status.

When status display shows JOG, it is normal.

When status display does not show JOG, mode select signal is not selected correctly. Confirm the

mode select signal using the PMC's signal status screen.

G0043

MD4

MD2

MD1

↓

Manual operation (JOG) mode

(2) Check the input signal from PMC.

Check the signal using the PMC's signal status screen.

G0100

+J5

+J4

+J3

+J2

+J1

G0102

-J5

-J4

-J3

-J2

-J1

+Jn, -Jn When a bit is "1", the corresponding feed axis direction selection signal has been entered.

+ J n

: Feed along the 1st axis

: Feed along the 5th axis

: Feed in the + direction

: Feed in the - direction

Example)

In the normal state, pressing the "+X" button on the operator's panel causes the signal +Jn to be

displayed as "1".

* This signal becomes effective when the rise of the signal is detected. If, therefore, the direction

selection signal has been entered before jog mode selection, axis movement is not performed;

set the bit "0" and then re-check the signal.

(3) Check diagnosis functions 0000 and 1010 of the CNC. Check the items for which 1 is displayed at

right side.

* Items with (a) to (d) relate with manual and automatic operation and its detail is shown below.

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(a)

In-position check is being done

It shows that positioning is not yet completed. Check the following diagnostic number.

(It is

1 in the following condition)

DGN0300

Position Error>Parameter No.1826

In-position width

(i)

Check the parameters according to the parameter list.

1825

Servo loop gain per axis

(Normal : 3000)

(b)

Jog feedrate override is 0%

Check the signals using the PMC's signal status screen.

G0010

*JV7

*JV6

*JV5

*JV4

*JV3

*JV2

*JV1

*JV0

G0011

*JV15

*JV14

*JV13

*JV12

*JV11

*JV10

*JV9

*JV8

When the override is 0% all bits of the above address becomes

1111

1111 or 0000

0000.

*JV15

*JV0

Override

1111 1111 1111 1111

0.00%

1111 1111 1111 1110

0.01%

1101 1000 1110 1111

100.00%

0000 0000 0000 0001

655.34%

0000 0000 0000 0000

0.00%

(c)

Interlock or start lock signal is input

There are a plural interlock signals. Check at first which interlock signal is used by the machine

tool builder at the parameters shown below.

3003

ITX

ITL

#0 (ITL) ITL=0 shows interlock signal *IT is effective. To i)

#2 (ITX) ITX=0 shows interlock signal *ITn is effective. To ii)

Check the interlock signals selected by the above parameters on the PMC signal status screen.

(i)

Interlock signal (*IT) is input.

G0008

*IT

*IT=0 shows that interlock signal is input.

(ii) Axis interlock signal (*ITn) is input.

G0130

*IT5

*IT4

*IT3

*IT2

*IT1

*ITn=0 shows interlock signal is input.

(d) NC is in a reset state

In this state, not only manual operation but also automatic operation is disabled. Make an

investigation according to the Section 10.2, "Manual Operation and Automatic Operation are

Disabled."

(4) Check the manual feedrate (parameter).

1423

Jog feedrate per axis

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(5) Check that manual feed per revolution is not selected.

The manual feed per revolution function feeds an axis at a speed in sync with the revolution of the

spindle and is enabled by the following parameter.

1402

JRV

JRV Jog feed and incremental feed are :

0 : Of feed per minute

1 : Of feed per revolution

(a) Check the revolution of the spindle.

Since the feedrate of an axis is calculated based on the revolutions of the spindle when this

parameter is set to 1, rotate the spindle.

(b) Check the detector and cables.

If the axis does not move even when the spindle is rotated, check the detector of the spindle

(position coder) and the cable between the position coder and the CNC if it is short-circuited or

ungrounded.

(6) Check that the axis is not the index table indexing axis.

For the index table indexing axis (B-axis), jog feed, incremental feed, and manual handle feed

cannot be performed.

10.4 HANDLE OPERATION CANNOT BE DONE

Points

(1) Check that the servo is activated.

(2) Check that the manual pulse generator is properly connected to the I/O module.

(3) Check that the I/O Link allocation of the I/O module is properly performed.

(4) Check that the related parameters are set and the related signals are input.

(5) Check the internal state with the CNC diagnosis function.

Causes and Countermeasures

Checking the activation of the servo

Check that the LED on the servo amplifier indicates "0". If a number other than "0" is indicated, the servo

is not activated. In this state, even JOG operation and automatic operation cannot be operated.

Check the servo-related parameters and the wiring.

2 Checking the manual pulse generators

(1) Cable failures (such as breaks)

Examine the cables for faults such as breaks and short-circuits, referring to the figure below.

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CNC

Distributed I/O module

(motherboard)

Operator's panel I/O module

First manual pulse

JA3

generator

IOLINK

(JD51A)

JD1B

Second manual

pulse generator

Third manual pulse

generator

CNC

Distributed I/O module

Manual pulse

(main board)

Operator's panel I/O module

generators

JD51A

Shield

JD1B

JA3

Shield

SIN(01)

(03)SOUT

HA1(01)

HA1

*SIN(02)

(04)*SOUT

HB1(02)

HB1

First

SOUT(03)

(01)SIN

+5V(09)

+5V

*SOUT(04)

(02)*SIN

0V(12)

0V(11)

(11)0V

0V(12)

(12)0V

HA2(03)

HA2

0V(13)

(13)0V

HB2(04)

HB2

Second

0V(14)

(14)0V

+5V(18)

+5V

0V(14)

HA3(05)

HA3

HB3(06)

HB3

Third

+5V(20)

+5V

0V(16)

(2) Manual pulse generator failures

When rotated, a manual pulse generator generates the signals shown below.

Using an oscilloscope, measure the signals from the screw terminal block located at the rear of a manual

pulse generator. If no signals are output, measure the +5 V voltage.

Rear of a manual pulse generator

Screw

terminal

block

HA: Manual pulse generator phase A signal

HB: Manual pulse generator phase B signal

+5V 0V HA HB

When rotated in the plus direction

When rotated in the minus direction

1 : 1

+5V

Off

+5V

Off

1 : 1

1/4

1/4 (phase difference)

Check the on/off ratio and the phase difference between HA and HB.

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(3) Checking the I/O Link allocation

The signals generated from a manual pulse generator are input to the X address of the PMC allocated to

the manual pulse generator.

(This X address is a parameter (No.12300 to 12302) set value.)

On the PMC SIGNAL STATUS screen (see Section 6.4.1), confirm that when a manual pulse generator is

rotated, the X address (parameter (No.12300 to 12302) set value) signal is counted up or down. If the

signal does not change when the manual pulse generator is rotated, check the connection of the manual

pulse generator and I/O Link allocation.

Checking the parameters and input signals

See Section 1.4, “CNC STATE DISPLAY.”

(1) Checking the basic parameter

Check that the following parameter, which enables manual handle feed, is set to 1.

8131

HPG

# 0 HPG Manual handle feed is:

0: Not Used.

1: Used.

Check the following parameter for the X address of the PMC allocated to the manual pulse generator.

7105

HDX

#1 HDX Manual handle for I/O Link connection is:

0: Automatically set.

1: Manually set.

NOTE

In manual setting, parameters Nos.12300 to 12302 must be set by manual to

connect Manual Pulse Generator with I/O Link.

12300

X address of the 1st. manual pulse generator

12301

X address of the 2nd. manual pulse generator

12302

X address of the 3rd. manual pulse generator

NOTE

When these parameters are set, the power must be turned off before operation

is continued.

(2) Checking the CNC status display (shown at the lower-left of the screen)

When the status display shows HND, mode selection is correct.

If it is not HND, mode select signal is not input correctly. Check the mode select signal using the PMC's

signal status screen.

G0043

MD4

MD2

MD1

↓

Manual handle mode

(3) Checking the manual handle feed axis select signal

Check the signals using the PMC's signal status screen.

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G0018

HS2C

HS2B

HS2A

HS1C

HS1B

HS1A

G0019

HS3C

HS3B

HS3A

When axis select switch for manual handle feed is selected on the machine operator's panel, if the signals

are input as follows, it is normal.

Selected axis

HSnC

HSnB

HSnA

no selection

1st axis

2nd axis

3rd axis

4th axis

5th axis

NOTE

The number n indicates a manual pulse generator (MPG) number. A manual

handle feed axis can be selected for up to three manual pulse generators for the

M series, or up to two or three (0i-TD only, optional function) manual pulse

generators for the T series. A feed axis is selected by 3-bit code of A to C.

(4) Checking the magnification of manual handle feed

Check the following signals using the PMC's signal status screen. Also confirm the following parameters

based on the parameter list.

G0019

MP2

MP1

In handle mode, the travel distance per step can be changed.

MP2

MP1

Step feed

Handle feed

100

× Mn

× 1000

× Nn

7100

MPX

#5 MPX In Manual handle feed mode, manual handle feed amount selection signal is

0 : same for all manual pulse generator, and it is set by signals MP1 and

MP2<Gn019.4,.5>.

1 : differ to each other manual pulse generator, and it’s setting signal as follow:

1st. Manual Pulse Generator : MP1,MP2<Gn019.4,.5>

2nd. Manual Pulse Generator : MP21,MP22<Gn087.0,.1>

3rd. Manual Pulse Generator : MP31,MP32<Gn087.3,.4> (M series only)

7102

HNGx

#0 HNGx Axis movement direction for rotation direction of manual pulse generator

0: Same in direction

1: Reverse in direction

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7113

Manual handle feed magnification m

7114

Manual handle feed magnification n

7131

Manual handle feed magnification m2 / 2nd. manual pulse generator

7132

Manual handle feed magnification n2 / 2nd. manual pulse generator

7133

Manual handle feed magnification m3 / 3rd. manual pulse generator

7134

Manual handle feed magnification n3 / 3rd. manual pulse generator

(5) Checking the index table indexing axis

For the index table indexing axis (B-axis), jog feed, incremental feed, and manual handle feed cannot be

performed.

Check by the CNC diagnosis function

(1) Check diagnosis functions 0000 and 1010 of the CNC. Check the items for which 1 is displayed at

right side.

* Items with (a) to (c) relate with manual and automatic operation and its detail is shown below.

(a) In-position check is being done

It shows that positioning is not yet completed. Check the following diagnostic number. (It is 1

in the following condition)

DGN0300

Position Error>Parameter No.1826

In-position width

(i)

Check the parameters according to the parameter list.

1825

Servo loop gain per axis

(Normal : 3000)

(b) Interlock or start lock signal is input

There are a plural interlock signals. Check at first which interlock signal is used by the machine

tool builder at the parameters shown below.

3003

ITX

ITL

#0 (ITL) ITL=0 shows interlock signal *IT is effective. To 1)

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#2 (ITX) ITX=0 shows interlock signal *ITn is effective. To 2)

Check the interlock signals selected by the above parameters on the PMC signal status screen.

(i)

Interlock signal (*IT) is input.

G0008

*IT

*IT=0 shows that interlock signal is input.

(ii) Axis interlock signal (*ITn) is input.

G0130

*IT5

*IT4

*IT3

*IT2

*IT1

*ITn=0 shows interlock signal is input.

In this state, not only manual operation but also automatic operation is disabled. Make an

investigation according to the Section 10.2, "Manual Operation and Automatic Operation are

Disabled."

10.5 AUTOMATIC OPERATION CANNOT BE DONE

Points

(1) Check manual operation is possible.

(2) Check the status of cycle start LED on machine operator's manual.

(3) Check status of CNC.

Causes and Countermeasures

When manual operation is either impossible, perform countermeasure, based on the Section 10.3, "Jog

Operation cannot be Done".

Confirm that a correct mode is selected according to the mode select status of CNC status display. Also,

by confirming the automatic operation status it is possible to identify cycle operation, feed hold and cycle

stop state.

When cycle operation is not started (Cycle start LED does not light)

"****" is displayed at status display on screen.

(1) Check the mode select signal.

When the mode select signal is input correctly, following status display is done.

MDI

: Manual data input (MDI) mode

MEM

: Automatic operation (MEM) mode

RMT

: Remote operation mode

If status display does not show a correct status, check the mode signal with following PMC's signal

status screen.

G0043

DNCI

MD4

MD2

MD1

DNCI

MD4

MD2

MD1

Mode select

Manual data input mode

Automatic operation (memory) mode

Remote operation mode

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(2) Check the automatic operation start signal.

The automatic operation start signal is set to 1 when the automatic operation start button is pressed

or 0 when the automatic operation start button is released. Automatic operation is started when this

signal is changed from 1 to 0, so check the status of the signal on the PMC signal status screen.

G0007

ST :

Cycle start signal

(3) Check the automatic operation stop (feed hold) signal.

During normal operation, when the automatic operation stop button is not pressed, the automatic

operation stop (feed hold) signal is 1. So, check the signal status on the PMC signal status screen.

G0008

*SP

*SP :

Feed hold signal

When an automatic operation is in progress (Cycle start LED is lit)

CNC's status display shows "STRT" on the screen.

(1) Check information displayed with CNC diagnosis number 0000. Check the items for which 1 is

displayed on the right side.

Diagnosis

0000

CNC internal state 1

[Data type] Bit

NAME

Internal state when "1" is displayed

(a) In-position Check

In-position check is being done.

(b) Feedrate Override 0% Feedrate override is 0%.

(d) Inter/Start Lock on

Interlock/start lock is on.

(e) Speed Arrival on

The system is waiting for the speed arrival signal to turn on.

Wait Revolution

The system is waiting for the spindle one-rotation signal in

threading.

Stop Position Coder The system is waiting for the rotation of the position coder

in spindle feed per revolution.

Feed Stop

A feed stop was made.

Items with (a) to (e) relate with an automatic operation and their details are as follows :

(a)

In-position check (confirming positioning) is being done

In positioning (G00) of the corresponding axis, the specified position is not reached.

Whether positioning is completed or not is checked as the servo position error amount. So,

use the following diagnosis function to check this.

DGN 300

Position error > Parameter No.1826

In-position width

Position error amount almost becomes 0, when positioning of an axis completes and when the

amount becomes within the in-position width, it is assumed that positioning completes and the

next block is executed.

(b)

Feedrate override is at 0%

Actual feedrate is overridden by the override signals to a programmed feedrate. Check the

override signals using the PMC's signal status screen.

• Feedrate override signal

G0012

*FV7

*FV6

*FV5

*FV4

*FV3

*FV2

*FV1

*FV0

*FVn : Feedrate override

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• State of override signal

*FV7

*FV0

1 1 1 1 1 1 1 1

1 1 1 1 1 1 1 0

1 0 0 1 1 0 1 1

100%

0 0 0 0 0 0 0 1

254%

0 0 0 0 0 0 0 0

(c)

Manual feedrate override is 0% (dry run)

Normally manual feedrate override function is used for jog feed.

But when DRN(dry run) signal turns on during an automatic operation, override values set with

these signals become valid to the following speed set by a parameter.

G0046

DRN

Dry run signal is input with this signal being 1.

1410

Dry run rate

When the value of the following override signal is 100%, the set feedrate is achieved.

G0010

*JV7

*JV6

*JV5

*JV4

*JV3

*JV2

*JV1

*JV0

G0011

*JV15

*JV14

*JV13

*JV12

*JV11

*JV10

*JV9

*JV8

When override value is 0%, all bits of the above address is

[1111

1111] or [0000

0000].

*JV15

*JV0

Override

1111

0.00%

1111

1110

0.01%

1101

1000

1110

1111

100.00%

0000

0001

655.34%

0000

0.00%

(d)

Interlock signal is input

Some interlock functions are provided; the interlock signal to be used is set by the machine tool

builder with the parameter. So, check the following settings first.

3003

ITX

ITL

#0 (ITL) ITL=0 shows interlock signal *IT is effective. To i)

#2 (ITX) ITX=0 shows interlock signal *ITn is effective. To ii)

Check the interlock signals selected by the above parameters on the PMC signal status screen.

(i)

Interlock signals (*IT, *CSL, and *BSL) are input.

G0008

*BSL

*CSL

*IT

*IT=0, *CSL=0, and *BSL=0 show that interlock signal is input.

(ii) Interlock signal per each axis (*ITn) is input

G0130

*IT5

*IT4

*IT3

*IT2

*IT1

When the bit is 0, the corresponding axis's interlock signal is input.

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(iii) The axis for which the movement command is executed is detached.

* This function is valid when parameter RMBx (No.1005#7)=1.

Check whether the control axis is being detached using the following input signal or parameter.

The control axis detach signal (DTCHn) is input.

G0124

DTCH5

DTCH4

DTCH3

DTCH2

DTCH1

DTCHn If it is 1, the corresponding axis is detached.

The corresponding axis is detached by the following parameter.

0012

RMVx

RMVx Releasing the assignment of the control axis for each axis

0: Not released

1: Released

(Equivalent to the control axis detachment signals DTCH1, DTCH2, and so forth)

(e) CNC is waiting for spindle speed arrival signal to be input

Actual spindle speed does not arrive at a speed specified in a program.

Confirm the signal state using the PMC's signal status screen.

G0029

SAR

When this signal is 0, spindle speed does not arrive at the specified speed.

* This function is enabled only when bit 0 (SAR) of parameter No. 3708 is 1.

(2) If it does not operate only during positioning, check items (a) and (b) below.

(a) Check the setting of the rapid traverse rate.

1420

Rapid traverse rate per axis

(b) Check the rapid traverse override.

G0014

ROV2

ROV1

G0096

HROV

*HROV6

*HROV5

*HROV4

*HROV3

*HROV2

*HROV1

*HROV0

(HROV=0)

(HROV=1)

ROV2

ROV1

Override

*HROV6……*HROV0

Override

100%

1 1 1 1 1 1 1

50%

1 1 1 1 1 1 0

25%

0 0 1 1 0 1 1

100%

1421

Rapid traverse override F0 rate

(3) If it does not operate only during cutting feed, check items (a) to (d) below.

(a) Check the setting of the maximum cutting rate.

Feedrate is clamped at this upper feedrate.

1430

Maximum feedrate in each axis

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(b) For feed per revolution (mm/rev), check the position coder.

(i)

Position coder does not rotate

Check the connection between spindle and position coder

The following failure is considered:

- Timing belt is broken

- Key is removed

- Coupling is loose

- Connector of signal cable is loosened

(ii) Position coder failed or connection error occurred

Check the connection of the position coder as described in (ii) in (c) below.

(i)

Position coder does not rotate

Check the connection between spindle and position coder

The following failure is considered:

- Timing belt is broken

- Key is removed

- Coupling is loose

- Connector of signal cable is loosened

(ii) Position coder failed or connection error occurred

Position coder is connected to the spindle amplifier when serial interface

is used or

connected to the CNC when analog interface is used.

For serial interface

CNC

Position coder

JA7B

JYA3

JA41

Spindle

JA7A

amplifier

Spindle motor

Position coder

JA7B

JYA3

Spindle

JA7A

Spindle motor

amplifier

- For analog interface

CNC

JA41

Position coder

Analog Spindle

JA40

Spindle motor

amplifier

Whether A/B phase signals from the position coder are read correctly, can be judged also by

the spindle speed display on the position display screen.

(When bit 2 (DPS) of parameter No. 3105 is 0, the actual speed of the spindle is not displayed.)

(d) Check a feedrate command (F command) is not zero.

If the bit 7 (FCO) of parameter No. 1404 is set to 1, alarm PS0011 is not issued even if a

feedrate command (F command) with a feedrate of 0 is issued.

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10.TROUBLESHOOTING

B-64305EN/03

10.6 CYCLE START LED SIGNAL HAS TURNED OFF

Points

(1) Confirm cycle start LED on machine operator's panel.

(2) Check the signal status of PMC.

Causes and Countermeasures

Check the states of the related signals on the signal status screen of PMC.

a. Checking the emergency stop signal

X0008

*ESP

G0008

*ESP

*ESP=0

: Emergency stop signal is input :

b. Checking the external reset signal

G0008

ERS

#7(ERS) : When the bit is 1, external reset signal is input.

* This signal may be used as a confirmation signal from the PMC side when M02 is specified during

program termination or other situations. In this case, a state in which the external reset signal is

input is entered.

c. Checking the pressing of the reset button on the MDI panel

Automatic operation was reset because the

key on the MDI panel is pressed during automatic

operation.

d. Checking the reset & rewind signal

G0008

RRW

#6(RRW) : When this signal is 1, the reset & rewind signal is input.

* This signal may be used as a confirmation signal from the PMC side when M30 is specified during

program termination or other situations. In this case, a state in which the reset & rewind signal is

input is entered.

e. Checking the occurrence of a servo alarm

Automatic operation was reset because any servo alarm occurred during automatic operation.

Checking the suspend state

Automatic operation enters the suspend state when:

(1) Modes are switched from an automatic operation mode to a manual operation mode.

(2) Feed hold signal is input.

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B-64305EN/03

10.TROUBLESHOOTING

• Mode select signal

G0043

MD4

MD2

MD1

↓

Memory edit(EDIT)

Automatic

Automatic operation (AUTO)

operation

Manual data input (MDI)

Jog feed (JOG)

Manual

Handle/step

operation

TEACH IN HANDLE

TEACH IN JOG

• Feed hold signal

G0008

*SP

#5(*SP) : When this signal is 0, the feed hold signal is input.

g. Checking single block stop

G0046

SBK

#1(SBK) :

When this signal is 1, the single block signal is input.

10.7 NOTHING IS DISPLAYED ON THE LCD WHEN THE

POWER IS TURNED ON

Causes and Countermeasures

If nothing is displayed on the LCD after power-on or data displayed immediately after power-on is still

displayed, possible causes include the following:

• The LCD cable or backlight cable is defective or connector connection is poor.

• The necessary software is not installed.

• The motherboard or inverter board is defective.

For the LCD-mounted type

• The LCD cable or backlight cable is not connected.

• The necessary software is not installed.

• The main board or inverter board is defective.

For the stand-alone type

• The display unit is not connected to the power supply.

• The display unit is not connected to the CNC with the optical cable or the cable is broken.

• The necessary software is not installed.

• The main board or display unit is defective.

Checking LED indication

Referring to Sections 2.4, “LED display of main board” and 3.4, “CONFIGURATION OF PRINTED

CIRCUIT BOARD CONNECTORS AND CARDS,” check the LED on/off status of the main board.

If the motherboard has started up normally and the LED display indicates normal operation, a probable

cause is a fault of the display system, such as a cable not connected or a defective inverter board.

If the LED display is locked in the middle of the startup process, the probable causes include defective

hardware (or installation failure) and the necessary software not installed.

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FANUC Series 0i-MODEL D, FANUC Series 0i Mate-MODEL D. MAINTENANCE MANUAL - page 13