FANUC AC SERVO MOTOR ai series, AC SPINDLE MOTOR ai series, SERVO AMPLIFIER ai series. MAINTENANCE MANUAL

No.

Description

Action

Although optional parameter for the output

Check setting of the parameter for output

switching option is not set, low-speed winding is

switching and the power line status signal

selected (RCH = 1).

(RCH).

Although Cs contour control mode is input, neither

SFR (forward rotation signal) nor SRV (reverse

Check the sequence.

rotation signal) is input.

Although servo mode (rigid tapping or spindle

positioning) control command is input, neither SFR

Check the sequence.

(forward rotation signal) nor SRV (reverse rotation

signal) is input.

Although spindle synchronization control command

is input, neither SFR (forward rotation signal) nor

Check the sequence.

SRV (reverse rotation signal) is input.

Although Cs contour control command is input,

Do not specify another mode during

another operation mode (servo mode, spindle

execution of the Cs contour control

synchronization, or orientation) is specified.

command. Before entering another mode,

cancel the Cs contour control command.

Although servo mode (rigid tapping or spindle

Do not specify another mode during

positioning) is input, another operation mode (Cs

execution of the servo mode command.

contour control, spindle synchronization, or

Before entering another mode, cancel

orientation) is specified.

servo mode.

Although spindle synchronization is input, another

Do not specify another mode during

operation mode (Cs contour control, servo mode, or

execution of the spindle synchronization

orientation) is specified.

command. Before entering another mode,

cancel the spindle synchronization

command.

Although orientation specification is input, another

Do not specify another mode during

operation mode (Cs contour control, servo mode, or

execution of the spindle synchronization

synchronization control) is specified.

command. Before entering another mode,

cancel the spindle synchronization

command.

The SFR (forward rotation signal) and SRV

Input one of the SFR and SRV signals.

(reverse rotation signal) are input at the same time.

Although the parameter not to use the differential

Check the setting of the parameter and the

speed control function (bit 5 of parameter No. 4000

differential speed mode command

= 0) is set, DEFMD (differential speed mode

command) is input.

The parameter settings for the speed detector (bits

Check the setting of the parameter.

2, 1, and 0 of parameter No. 4011) are invalid.

There is no speed detector that matches the

settings.

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No.

Description

Action

Although parameter settings are such that that

Check the setting of the parameter and the

there is no position sensor (position control is not to

input signal.

be performed, that is, "bits 3, 2, 1, and 0 of

parameter No. 4002 are, respectively, 0, 0, 0, and

0," a position coder-based orientation command

has been issued.

Although magnetic sensor orientation command is

Do not specify another mode during

input, another operation mode (Cs contour control,

execution of the orientation command.

servo mode, or spindle synchronization) is

Before entering another mode, cancel the

specified.

orientation command.

A tandem operation command was input when

Input a tandem operation command after

spindle synchronous control is enabled.

canceling spindle synchronous control.

Spindle synchronous control was specified when

Specify spindle synchronous control after

tandem operation is enabled.

canceling torque tandem operation.

A tandem operation command is input even if the

Torque tandem control requires the CNC

option is not specified.

software option. Check the option.

Although continuous indexing in position

Check the INCMD (incremental command).

coder-based orientation is to be performed, an

Be sure to perform absolute position

absolute position command (INCMD = 0) has been

command-based orientation before an

issued after incremental operation (INCMD = 1).

absolute position command.

Parameter settings are made to use both spindle

Check the parameter settings and input

switching and three stage speed range switching

signals.

control.

Parameter settings are such that the shortest-time

The shortest-time orientation function

orientation function is to be used (bit 6 of parameter

cannot be used in the αi series spindle

No. 4018 is 0 and parameter Nos. 4320 to 4323 are

amplifier. Use a different type of

nonzero).

orientation.

The magnetic pole undetected state is set, but a

In the magnetic pole undetected state

command is input.

(EPFIXA=0), the motor cannot be driven

even if a command is input. input a

command in the magnetic pole detection

completed state (EPFIXA=1).

While EPFSTR=1 is set, a command is

ignored even in the magnetic pole detection

completed state, and this error is indicated.

Upon completion of magnetic pole detection,

set EPFSTR=0.

This hardware configuration does not support the

Check the CNC model.

use of the spindle FAD function. In this case, the

motor is not activated.

Although S0 is not specified for the speed mode, the

Specify S0 for the speed mode before

parameter setting is made to enable the disturbance

enabling the disturbance input function (

input function (bit 7 of parameter No.4395 =1).

setting bit 7 of parameter No.4395 to 1).

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No.

Description

Action

This hardware configuration does not support the

Check the CNC model.

use of the spindle EGB function. In this case, the

motor is not activated.

Both spindle FAD function and spindle EGB function

These functions cannot be used at the same

are enabled. In this case, the motor is not activated.

time. Enable only one of the functions

ID information of the spindle amplifier cannot be

Replace the spindle amplifier with one for

obtained.

which correct ID information is written

The SSM is abnormal.

For actioon to be taken for this error, see

(1) The interface signal between the spindle

Section 1.4.”SUB MODULE SM”, in Part IV

anplifier(SP) and SSM is disconnect.

in FANUC AC SPINDLE MOTOR α+ series

(2) The SSM is faulty.

PARAMETER MANUAL B-65280JA.

The current loop setting (parameter No.4012) is

Check the setting of parameter No.4012,

changed.

and turn the power offf, then on again.

-Parameters related to inter-spindle amplifier

Check the parameters.

communication are not set correctly.

-Functions that cannot be used together with the

torque tandem function are set.

DSCN(disconnection detection disable signal) is

Check the sequence.

input in the state where SFR (forward rotation

Do not input DSCN( disconnection

command), SRV (reverse rotation command), or

detectiondisable signal) while a command

ORCM (orientation command) is input.

for motor activation is input.

A setting unavailable with the αiCZ sensor (serial) is

Check the parameters.

made.(*1)

The spindle amplifier does not support the control

Check the setting of parameter No.4012.

frequency setting.

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Note

*1 If state error 43 is displayed, check the following items.

<1> The setting is made so that the αiCZ sensor (serial) is used as both of the motor and

spindlesensors. (No.4010#2,1,0=0,1,0 and No.4002#3,2,1,0=0,1,1,0)

<2> Spindle HRV control is not set. (No.4012#7=0)

<3> The use of the differential spindle speed control function is set. (No.4000#5=1)

<4> The use of the spindle switching control function is set. (No.4014#0=1)

<5> The setting is made so that alarms related to position feedback are not detected.

(No.4007#6=1 or No.4016#5=0)

<6> The setting is made so that feedback signal disconnection is not detected. (No.4007#5=1)

<7> The setting is made so that alarms related to threading position detection signal feedback

arenot detected. (No.4016#5=0)

<8> The use of an external one-rotation signal is set. (No.4004#2=1)

<9> The use of a position coder is set. (No.4002#3,2,1,0=0,0,1,0)

<10> The setting is made so that the synchronous built-in spindle motor is driven.

(No.4012#6=1)

<11> The use of inter-spindle amplifier communication is set. (No.4352#7=1 or No.4352#6=1)

<12> The use of the dual check safety function is set.

<13> The use of the spindle tandem function is set. (No.4015#3=1)

<14> The use of the αi CZ sensor (serial) as the motor sensor is set and the dual check safety

function is enabled.

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2. TROUBLESHOOTING

2.1.

TROUBLESHOOTING PROCEDURES

2.1.1

Troubleshooting Procedure

Smart trouble shooting function is available for the combination of the 30+-B series CNC and the α+ servo

amplifier for the 30+-B series. The function analyzes causes of alarm occurrence and shows how to remove them.

At alarm occurrence, switch from he CNC screen to the “Trouble diagnosis guidance” screen and remove the cause

of the alarm according to what is displayed on the screen.

⇒ 2.2 SMART TROUBLE SHOOTING FUNCTION

⇒ 2.2.1 Failure Diagnosis Guidance

IMPORTANT

・ Using the failure diagnosis guidance requires keeping it in the “SAMPLING” status. See

Subsection 2.2.3 for explanations about how to shift to the “SAMPLING” status.

Data (about power supply, motor current, and detector) related to servo amplifiers before alarm and just at alarm

are sent to the CNC immediately. This data can be used in taking action for alarm occurrence.

Data (about power supply, motor current, and detector) related to servo amplifiers is saved to the CNC immediately

before and at alarm occurrence. This data can be used in taking action for alarm occurrence.

⇒ 2.2.2 Failure Diagnosis Monitor

IMPORTANT

・ The failure diagnosis monitor has two status, “SAMPLING” and “LATCHED”.

If you want to monitor data at future alarm occurrence, perform “CLEAR”. If you want to save

the conditions at past alarm occurrence, do not perform “CLEAR”. See Subsection 2.2.3 for

detailed descriptions of this procedure.

See Section 2.3 for lists of CNC alarm numbers related to servos and LED indication numbers on servo amplifiers.

NOTE

・ There might be a possibility that you cannot get exact analysis even when you use smart

trouble shooting function. In such case, identify the alarm number, the program where the

alarm occur, and what you operated, and then make a service call.

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2.2.

SMART TROUBLE SHOOTING FUNCTION

The 30+-B series CNC has a function for failure diagnosis. With this function, the operator can get diagnostic

information that may be useful to make decisions at the occurrence of a servo, spindle, or CNC alarm from the

CNC screen.

The major features of the smart trouble shooting function are as follows:

・ “Trouble diagnosis guidance” screen for figuring out alarm causes according to the failure diagnosis flow

・ “Trouble diagnosis monitor” screen for monitoring the states of servo circuits and spindles during normal

operation and enabling data to be latched at alarm occurrence

・ “Trouble diagnosis graphic” screen for making it possible to display waveforms observed at the occurrence

of a servo or spindle alarm

In all of these features, the “Trouble diagnosis guidance” screen can be used to identify an alarm cause and how

to handle it quickly, leading to a possible improvement in facility availability ratio due to a reduction of down time.

Shown below is an example of the “Trouble diagnosis guidance” screen.

Trouble diagnosis guidance screen

The failure diagnosis guidance executes a diagnosis flow to identify these causes. Many analyses are made

automatically according to information inside of CNC. However, questions may be displayed on the guidance

screen in making some analyses. Answer the questions using the soft key [YES] or [No] to proceed on the

guidance flow.

NOTE

・ “PROBABLE CAUSE” and “GUIDANCE” (how to handle) show the most likely information

obtained. Before any replacement, make a double check using another method (for example,

detecting an insulation resistance or checking conductivity).

・ In case that the result of the diagnosis is “Failure of amplifier” when “SV ABNORMAL

CURRENT” alarm (SV438) or “OVERCURRENT POWER CIRCUIT” alarm (SP9012) or “SV

IPM ALARM” (SV449) occurs, check the insulation of power wire and motor between lines to

ground before replacing the amplifier.

・ In case that the result of the diagnosis is “Failure of motor or power cable” when “SV

ABNORMAL CURRENT” alarm (SV438) or “OVERCURRENT POWER CIRCUIT” alarm

(SP9012) or “SV IPM ALARM” (SV449) occurs, check also the insulation of power wire and

motor between lines to ground.

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2.2.1

Failure Diagnosis Guidance

IMPORTANT

・ Using the failure diagnosis guidance requires keeping it in the “SAMPLING” status. See

Subsection 2.2.3 for explanations about how to shift to the “SAMPLING” status.

Explained below is how to use the failure diagnosis guidance to identify the causes of alarm occurrence, using

SV011 (“EXCESS ERROR (MOVING)”) and SV0449 (“SV IPM ALARM”) as examples.

Alarm example 1) Occurrence of SV0411 (“EXCESS ERROR (MOVING)”)

(1) At alarm occurrence, follow the steps below to display the “Trouble diagnosis guidance” screen.

<1> If no alarm screen appears, press the Message key.

<2> Keep pressing the continuation menu key [＞] until the soft key [GUIDE] appears.

<3> Press the soft key [GUIDE] .

Press [GUIDE] key

(2) There are some causes to occur EXCESS ERROR as follows.

Amplifier abnormal

Power wire or motor winding short-circuited

Power wire or motor winding broken

Servo-off signal malfunctioning

Excessive load fluctuation

Brake faulty

Command for speed higher than specification issued

The failure diagnosis guidance executes a diagnosis flow to identify these causes. Many analyses are made

automatically according to information within the NC. However, questions may be displayed on the

guidance screen in making some analyses. Answer the questions using the soft key [YES] or [NO] to

proceed on the guidance flow.

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Example)

“EXCESS ERROR (MOVING)” resulting from a broken power wire

Pressing [GUIDE] causes the

message shown on the left to appear.

The guidance requests you to turn off

the power once. After the servo

amplifier is turned off and on again,

self-diagnosis is conducted.

Just after the servo amplifier is turned

on, self-diagnosis was conducted, and

the “PHASE OPEN” alarm occurred.

Press the [GUIDE] button again to

display the “Trouble diagnosis

guidance” screen.

The [Trouble diagnosis guidance]

screen suggests a possible broken

motor winding or power wire. Take

action as directed by the message.

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Alarm example 2) Occurrence of SV0449 ([SV IPM alarm])

(1) At alarm occurrence, follow the steps below to display the “Trouble diagnosis guidance” screen.

<1> If no alarm screen appears, press the Message key.

<2> Keep pressing the continuation menu key [＞] until the soft key [GUIDE] appears.

<3> Press the soft key [GUIDE] .

Press [GUIDE] key

(2) There are some causes to occur “SV IPM alarm” as follows.

Amplifier abnormal

Power wire or motor winding short-circuited

Power wire or motor winding broken

Current control disturbed

The failure diagnosis guidance executes a diagnosis flow to identify these causes. Many analyses are made

automatically according to information within the NC. However, questions may be displayed on the

guidance screen in making some analyses. Answer the questions using the soft key [YES] or [NO] to

proceed on the guidance flow.

Example)

“SV IPM alarm” resulting from a broken power wire

Pressing [GUIDE] causes the message

shown on the left to appear. The

guidance requests you to turn off the

power once. After the servo amplifier

is turned off and on again,

self-diagnosis is conducted.

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Just after the servo amplifier is turned

on, self-diagnosis was conducted, and

the “FAILURE OF CURRENT

CTL” alarm occurs. Display the

“Trouble diagnosis guidance” screen

again.

The guidance displays “Is the value of

SV DGN. INFO. set to 1 in trouble

diagnosis monitor”. So, view the

“Trouble diagnosis monitor”

screen.

Display the “Trouble diagnosis

monitor” screen, go to the page

containing the item “SV DNG.

INFO.”, and then press the

[CURRENT] button.

Press [CURRENT] key

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2.2.2

Failure Diagnosis Monitor

IMPORTANT

・ The failure diagnosis monitor has two status, “SAMPLING” and “LATCHED”.

If you want to monitor data at future alarm occurrence, perform “CLEAR”. If you want to save

the conditions at past alarm occurrence, do not perform “CLEAR”. See Subsection 2.2.3 for

detailed descriptions of this procedure.

The failure diagnosis monitor can display the following information.

Follow the steps below to display the “Trouble diagnosis monitor” screen.

・ Press the Message key to display the alarm screen.

・ Keep pressing the continuation menu key [＞] until the soft key [MONIT] appears.

・ Press the soft key [MONIT] to display the “Trouble diagnosis monitor” screen.

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Display

Data（unit）

Data explanation

page No.

COMMAND PULSE (pulse)

1/8

F.B. PULSE (pulse)

(Note 3)

1/8

REF.COUNTER (pulse)

1/8

POS. ERROR (pulse)

1/8

ACTUAL SPEED (1/min)

1/8

AMR DATA

Armature position data of motor (256/1cycle of motor

1/8

current )

Maximum torque =100%

2/8

TORQUE COMMAND (%)

Maximum current of servo amplifier =100%

2/8

EFFECTIVE CURRENT (%)

2/8

MOTOR CURRENT (A)

Alarm level of unexpected disturbance torqe detection

2/8

DISTURBANCE LEVEL (%)

=100%

OVC alarm level =100%

2/8

HEAT SIMULATION (%)

(note2)

2/8

ARBITRARY DATA1

(note2)

2/8

ARBITRARY DATA2

Instantaneous value (Note 3)

3/8

DC LINK VOLT. (V)

Average of 1cycle of input power supply(Note 3)

3/8

PS VOLTAGE RMS (Vrms)

Average of 1cycle of input power supply (Note 3)

3/8

PS VOLT.UMBALANCE (%)

Average of 1cycle of THD(Total Harmonic Distortion)

3/8

PS VOLTAGE THD (%)

(Note 3)

Average of current amplitude of the 1 cycle of input power

3/8

PS CURRENT (A)

supply (Note 3)

(Note 4)

3/8

PS STATUS FLAG 1

(Note 4)

3/8

PS STATUS FLAG 2

(Note 4)

3/8

PS STATUS FLAG 3

(Note 4)

3/8

PS STATUS FLAG 4

Average of 1cycle of input power supply (Note 3)

3/8

PS INPUT FREQ (Hz)

State flage of INSULATION DETERIORATION

4/8

SV INS.INFO.

DETECTION FUNCTION

Insulation resistance (Note 3)

4/8

SV INS.RESISTANCE (MΩ)

(Note 3)

4/8

PS INT.TMP. (℃)

PS HEAT SINK TMP. (℃)

(Note 3)

5/8

SV INT.TMP. (℃)

(Note 3)

5/8

SV HEAT SINK TMP. (℃)

(Note 3)

5/8

AMP GROUP/SLAVE

Groupe No. and Slave No.

5/8

State flage of PS

5/8

PS DGN.INFO.

Error state flage of communication between amplifier

5/8

AMP COMM.ERR.INF.

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State flage of SV

5/8

SV DGN.INFO.

(Note 5)

6/8

SV FSSB UPR.ERR.

(Note 5)

6/8

SV FSSB LWR.ERR.

(Note 5)

6/8

SV FSSB UPR.JTR.

(Note 5)

6/8

SV FSSB LWR.JTR.

(Note 5)

6/8

SDU FSSB UPR.ERR.

(Note 5)

6/8

SDU FSSB LWR.ERR.

(Note 5)

6/8

SDU FSSB UPR.JTR.

SDU FSSB LWR.JTR.

(Note 5)

6/8

The number of times by which the data of a built-in

7/8

INT.DTCT.INTP.CNT

detector was disturbed in the noise

(The number of times which detected the abnormalities in

data)

The number of times which detected the abnormalities in

7/8

INT.DTCT.COM.CNT

data of a built-in detector

(The number of times which detected the communication

error)

Warning information of a built-in detector

7/8

INT.DETECTOR WRN.

The number of times by which the data of a separated

7/8

EXT.DTCT.INTP.CNT

detector was disturbed in the noise

(The number of times which detected the abnormalities in

data)

The number of times which detected the abnormalities in

7/8

EXT.DTCT.COM.CNT

data of a separated detector

(The number of times which detected the communication

error)

Warning information of a separated detector

7/8

EXT.DETECTOR WRN.

(Note 2)

7/8

SV DATA 1

(Note 2)

7/8

SV DATA 2

(Note 2)

7/8

SV DATA 3

(Note 2)

7/8

SV DATA 4

LAST LATCH DATE

8/8

LAST LATCH TIME

8/8

EXECUTED FILE NAME

8/8

EXECUTED N-NUM

8/8

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NOTE

1 The range of displays listed above is only the one that can be displayed with the monitor function. It

includes neither a system performance nor a rated value.

2 Arbitrary data items 1 and 2 and SV data items 1 to 4 are intended for use by FANUC for

maintenance purposes.

3 The displayed voltage, current, frequency, resistance, and temperature values are approximate

values with some error included. If accurate data is needed, measure them using dedicated

measuring instruments.

4 PS status flags 1 to 4 are intended for use by FANUC for maintenance purposes.

5 FSSB errors and jitter data indicate the status of FSSB communication. They are intended for use

by FANUC for maintenance purposes.

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Display

Data（unit）

Data explanation

page No.

1/9

Operation mode

1/9

Gear select command

1/9

Command pulse (pulse)

(Note2)

1/9

Command speed (1/min)

1/9

Input signals

1/9

Output signals

2/9

ACT.SPINDLE SPEED (1/min)

(Note2)

2/9

ACT.MOTOR SPEED (1/min)

2/9

LOAD METER (%)

Maximum torque=100%

2/9

TORQUE COMMAND (%)

2/9

MOTOR CURRENT (A)

OVC alarm level=100%

2/9

HEAT SIMU.(MOTOR) (%)

OVC alarm level=100%

2/9

HEAT SIMU.(AMP) (%)

2/9

POS. ERROR (pulse)

2/9

Synchronization error (pulse)

Instantaneous value (Note 3)

3/9

DC LINK VOLT. (V)

Average of 1cycle of input power supply (Note 3)

3/9

PS VOLTAGE RMS (Vrms)

Average of 1cycle of input power supply (Note 3)

3/9

PS VOLT.UMBALANCE (%)

Average of 1cycle of THD(Total Harmonic Distortion)

3/9

PS VOLTAGE THD (%)

(Note 3)

Average of current amplitude of the 1 cycle of input power

3/9

PS CURRENT (A)

supply (Note 3)

(Note 5)

3/9

PS STATUS FLAG 1

3/9

PS STATUS FLAG 2

(Note 5)

3/9

PS STATUS FLAG 3

(Note 5)

3/9

PS STATUS FLAG 4

(Note 5)

Average of 1cycle of input power supply(

3/9

PS INPUT FREQ (Hz)

State flage of INSULATION DETERIORATION

4/9

SP INS.INFO.

DETECTION FUNCTION

Insulation resistance (Note 3)

4/9

SP INS.RESISTANCE (MΩ)

PS INT.TMP. (℃)

(Note 3)

5/9

PS HEAT SINK TMP. (℃)

(Note 3)

5/9

(Note 3)

5/9

SP INT.TMP. (℃)

(Note 3)

5/9

SP HEAT SINK TMP. (℃)

Groupe No. and Slave No.

5/9

AMP GROUP/SLAVE

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State flage of PS

5/9

PS DGN.INFO.

Error state flage of communication between amplifier

5/9

AMP COMM.ERR.INF.

State flage of SP

5/9

SP DGN.INFO.

(Note 6)

6/9

SP FSSB UPR.ERR.

(Note 6)

6/9

SP FSSB LWR.ERR.

(Note 6)

6/9

SP FSSB UPR.JTR.

(Note 6)

6/9

SP FSSB LWR.JTR.

Amplitude of built-in analog sensor

7/9

INT.A/B AMPLITUDE (V)

INT.A/B MAX FLUCT (%)

Max. fluctuation of built-in analog sensor

7/9

A phase offset of built-in analog sensor

7/9

INT.A/B OFFSET A (mV)

B phase offset of built-in analog sensor

7/9

INT.A/B OFFSET B (mV)

The number of times by which the data of a built-in sensor

7/9

INT.A/B NOISE CNT

was disturbed in the noise

(The number of times which detected the abnormalities in

data)

Amplitude of separated analog sensor

7/9

EXT.A/B AMPLITUDE (V)

Max. fluctuation of separated analog sensor

7/9

EXT.A/B MAX FLUCT (%)

A phase offset of separated analog sensor

7/9

EXT.A/B OFFSET A (mV)

B phase offset of separated analog sensor

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EXT.A/B OFFSET B (mV)

The number of times by which the data of a separated

7/9

EXT.A/B NOISE CNT

analog sensor is disturbed in the noise

(The number of times which detected the abnormalities in

data)

The number of times by which the data of a built-in serial

8/9

INT.SRAL INTP.CNT

sensor is disturbed in the noise

(The number of times which detected the abnormalities in

data)

The number of times which detected the abnormalities in

8/9

INT.SRAL COM.CNT

data of a built-in serial sensor

(The number of times which detected the communication

error)

Warning information of built-in serial sensor

8/9

INT.SRAL WRN.

The number of times by which the data of a separated

8/9

EXT.SRAL INTP.CNT

serial sensor is disturbed in the noise

(The number of times which detected the abnormalities in

data)

The number of times which detected the abnormalities in

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EXT.SRAL COM.CNT

data of a separated serial sensor

(The number of times which detected the communication

error)

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Warning information of separated serial sensor

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EXT.SRAL WRN.

(Note 4)

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SP DATA 1

(Note 4)

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SP DATA 2

(Note 4)

8/9

SP DATA 3

(Note 4)

8/9

SP DATA 4

LAST LATCH DATE

9/9

LAST LATCH TIME

9/9

EXECUTED FILE NAME

9/9

EXECUTED N-NUM

9/9

Note

1 The range of displays listed above is only the one that can be displayed with the monitor function. It

includes neither a system performance nor a rated value.

2 The parameter of maximum speed of motor should be set in order to display the speed command

and actual speed.

・No.4020：Maximum speed of main spindle motor

・No.4196：Maximum speed of sub spindle motor motor (when the spindle switching control function

is used)

3 The displayed voltage, current, frequency, resistance, and temperature values are approximate

values with some error included. If accurate data is needed, measure them using dedicated

measuring instruments.

4 SP data items 1 to 4 are intended for use by FANUC for maintenance purposes.

5 PS status flags 1 to 4 are intended for use by FANUC for maintenance purposes.

6 FSSB errors and jitter data indicate the status of FSSB communication. They are intended for use

by FANUC for maintenance purposes.

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2.2.3

How to set the Failure Diagnosis Guidance and Failure Diagnosis

Monitor in the “SAMPLING” status

The failure diagnosis monitor has two statuses, “SAMPLING” and “LATCHED”.

The monitor is initially in the “SAMPLING” status. When an alarm occurs, it shifts to the “LATCHED” status.

When the monitor is in the “LATCHED” status, performing the “CLEAR” operation erases the data saved at alarm

occurrence and places it back to the “SAMPLING” status.

For this reason, observe the following:

・ If it is necessary to monitor data at future alarm occurrence, perform the “CLEAR” operation.

・ If it is necessary to save the statuses at past alarm occurrence, do not perform the “CLEAR” operation

Shown below is how to place the monitor back in the “SAMPLING” status by performing the “CLEAR” operation.

Press [OPRT] key

“SAMPLING”

starts blinking.

Press [EXEC] key

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2.3.

Alarm number

2.3.1

Servo alarm

LED

Alarm No

Description

SV0001

Sync alignment error

SV0002

Sync excess error alarm 2

Synchronous/composite/super imposed control

SV0003

mode can’t be continued

SV0004

Excess error (G31)

SV0005

Sync excess error (MCN)

SV0006

Illegal tandem axis

SV0007

SV alarm another path (Multi AMP.)

SV0010

SV overheat

SV0011

SV motor over current(SOFT)

SV0012

SV drive off circuit failure

SV0013

SV cpu bus failure

SV0014

SV cpu watch dog

SV0015

(Blink)

SV low volt driver

SV current detect error

SV0016

SV0017

SV internal serial bus failure

SV rom data failure

SV0018

(Blink)

SV motor current abnormal（Ground fault）

SV0019

(Blink)

SV0020

PS ground fault

SV0024

PS soft thermal

SV0034

PS hardware error

SV0035

－

NO failure

SV0036

(Blink)

Phase open

SV0037

(Blink)

Failure of SV

(OPEN)

SV0038

－

Failure of current CTL.

SV0039

(Blink)

Failure of SV (SHORT)

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LED

Alarm No

Description

SV0301

APC alarm: communication error

SV0302

APC alarm: over time error

SV0303

AAPC alarm: framing error

SV0304

APC alarm: parity error

SV0305

APC alarm: pulse error

SV0306

APC alarm: over flow error

SV0307

APC alarm: movement excess error

SV0360

Abnormal checksum(INT)

SV0361

Abnormal phase data(INT)

SV0363

Abnormal clock(INT)

SV0364

Soft phase alarm(INT)

SV0365

Broken LED(INT)

SV0366

Pulse miss(INT)

SV0367

Count miss(INT)

SV0368

Serial data error(INT)

SV0369

Data trans. error(INT)

SV0380

Broken LED(EXT)

SV0381

Abnormal phase (EXT)

SV0382

Count miss(EXT)

SV0383

Pulse miss(EXT)

SV0384

Soft phase alarm(EXT)

SV0385

Serial Data error(EXT)

SV0386

Data trans. error(EXT)

SV0387

Abnormal encoder(EXT)

SV0401

Improper v_ready off

SV0403

Card/soft mismatch

SV0404

Improper v_ready on

SV0407

Excess error

SV0409

Detect abnormal Torque

SV0410

Excess error (STOP)

SV0411

Excess error (MOVING)

SV0413

LSI overflow

SV0415

Motion value overflow

SV0417

Ill dgtl servo parameter

SV0420

Sync Torque excess

SV0421

Excess error(Semi-full)

SV0422

Excess velocity in torque

SV0423

Excess error in torque

SV0430

SV motor overheat

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LED

Alarm No

Description

SV0431

PS overload

SV0432

PS low volt. control

SV0433

PS low volt. DC link

SV0434

SV low volt control

SV0435

SV low volt DC link

SV0436

Softthermal(OVC)

SV0437

PS Overcurrent

SV abnormal current

SV0438

SV0439

PS over volt. DC link

SV0441

Abnormal current offset

SV0442

PS pre-charge failure

SV0443

PS internal fan failure

SV0444

SV internal fan failure

SV0445

Soft disconnect alarm

SV0446

Hard disconnect alarm

SV0447

Hard disconnect(EXT)

SV0448

Unmatched feedback alarm

SV IPM alarm

SV0449

SV0453

SPC soft disconnect alarm

SV0454

Illegal rotor pos detect

SV0456

Illegal current loop

SV0458

Current loop error

SV0459

Hi HRV setting error

SV0460

FSSB disconnect

SV0462

Send CNC data failed

SV0463

Send slave data failed

SV0465

Read ID data failed

SV0466

Motor/Amp. Combination

SV0468

Hi HRV setting error(AMP)

SV0474

Excess error(STOP:SV )

SV0475

Excess error(MOVE:SV)

SV0476

Illegal Speed cmd.(SV )

SV0477

Illegal machine pos.(SV)

SV0478

Illegal axis data(SV)

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LED

Alarm No

Description

SV0481

Safety param error(SV)

SV0484

Safety function error(SV)

SV0488

Self test over time

SV0489

Safety param error(CNC)

SV0490

Safety function error(CNC)

SV0494

Illegal speed cmd.(CNC)

SV0496

Illegal axis data(CNC)

SV0498

Axis number not set(CNC)

SV0600

SV DC link over current

SV0601

SV external fan failure

SV0602

SV overheat

SV IPM alarm(OH)

SV0603

SV0604

AMP communication error

SV0606

PS external fan failure

SV0607

PS improper Input power

SV0646

Abnormal analog signal(EXT)

SV0652

Temp.error

SV0654

DB Relay failure

SV1025

V_ready on (Initializing )

SV1026

Illegal axis arrange

SV1055

Illegal tandem axis

SV1067

FSSB:configuration error(SOFT)

SV1068

Dual check safety alarm

SV1069

Excess error(Servo off:CNC)

SV1070

Excess error(Servo off:SV)

SV1071

Excess error(Move:CNC)

SV1072

Excess error(Stop:CNC)

SV1100

S-comp. value overflow

SV5134

FSSB:Open ready time out

SV5136

FSSB:Number of AMP. is insufficient

SV5137

FSSB:Configuration error

SV5139

FSSB:Error

SV5197

FSSB:Open time out

SV5311

FSSB:Illegal connection

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2.3.2

Spindle Alarm

LED

Alarm No

Description

SP9001

Motor overheat

SP9002

Excessive speed deviation

SP9003

DC link fuse blown

SP9004

Open phase in the converter main power supply

SP9006

Temperature sensor disconnected

SP9007

Excessive speed

SP9009

Main circuit overload/IPM overheat

SP9010

Low voltage input power

SP9011

Converter: DC link overvoltage

SP9012

DC link overcurrent/IPM alarm

CPU Data memory fault

SP9014

No ID number

SP9015

Output switching/spindle switching alarm

SP9016

RAM Error

SP9017

ID number parity error

Program sum check error

Excessive offset of the phase U current detection

SP9019

circuit

Excessive offset of the phase V current detection

SP9020

circuit

SP9021

Position sensor polarity setting incorrect

SP9022

Spindle Amplifier overload current

Serial transfer data error

SP9027

Position coder disconnected

SP9029

Short-period overload

SP9030

Overcurrent in the converter input circuit

SP9031

Motor lock alarm

SP9032

Serial communication LSI RAM error

SP9033

Converter: DC link precharge failure

SP9034

Parameter data out of the specifiable range

SP9036

Error counter overflow

SP9037

Speed detector parameter error

SP9041

Position coder one-rotation signal detection error

SP9042

Position coder one-rotation signal not detected

SP9043

Disconnect position corder signal for differential speed

Position sensor one-rotation signal detection error

SP9046

during thread cutting

SP9047

Position coder signal error

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LED

Alarm No

Description

SP9049

Differential speed is over value

Excessive speed command calculation value during

SP9050

spindle synchronization

SP9051

Converter: DC link undervoltage

SP9052

ITP signal error I

SP9053

ITP signal error II

SP9054

Current overload alarm

SP9055

Abnormal switching status of power leads

SP9056

Internal cooling fan stopped

SP9058

Converter: main circuit overload

SP9059

Converter: cooling fan stopped

SP9061

Excess of error between semi-closed and full-closed

Move distance is too long when Magnetic pole

SP9065

confirmed

SP9066

Communication alarm between spindle amplifiers

SP9067

FSC/EGB command error

SP9069

Safety speed exceeded

SP9070

Abnormal axis data

SP9071

Abnormal safety parameter

SP9072

Motor speed mismatch

SP9073

Motor sensor disconnected

SP9074

CPU test alarm

SP9075

CRC test alarm

SP9076

Safety function not executed

SP9077

Axis number mismatch

SP9078

Safety parameter mismatch

SP9079

Abnormal initial test operation

SP9080

Alarm at the other spindle amplifier

SP9081

Motor sensor one-rotation signal detection error

SP9082

Motor sensor one-rotation signal not detected

SP9083

Motor sensor signal error

SP9084

Spindle sensor disconnected

SP9085

Spindle sensor one-rotation signal detection error

SP9086

Spindle sensor one-rotation signal not detected

SP9087

Spindle sensor signal error

SP9088

Cooling fan stopped of the radiator

SP9089

Sub module SM error

SP9090

Unexpected rotation

SP9091

Pole position count miss

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LED

Alarm No

Description

SP9092

Over speed to velocity command

Program ROM error

SP9110

Communication error between amplifiers

SP9111

Converter: control power supply low voltage

SP9113

PS external fan failure

SP9114

PS control axis error 1

SP9115

PS control axis error 2

SP9120

Communication data alarm

SP9121

Communication data alarm

SP9122

Communication data alarm

SP9123

Spindle switching circuit error

SP9124

Learning control rotation command error

SP9125

Learning control compensation order error

SP9127

Learning control period error

SP9128

Spindle synchronous control velocity error excess

SP9129

Spindle synchronous control position error excess

SP9130

Torque tandem polarity error

SP9131

Spindle tuning function alarm

SP9132

Serial sensor data error

SP9133

Serial sensor transfer error

SP9134

Serial sensor soft phase error

SP9137

SP device communication error

SP9138

Current limit setting error

SP9139

Serial sensor pulse miss

SP9140

Serial sensor count miss

SP9141

Serial sensor no 1 rotation signal

SP9142

Serial sensor abnormal

SP9143

Cs high speed change command error

SP9144

Current detect circuit error

SP9145

Low voltage for driver circuit

SP9147

Spindle ground fault

SP9148

Axis number not set

SP9153

SP not failure

SP9154

Phase open

SP9155

Failure of SP (OPEN)

SP9156

Current control failure

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FANUC AC SERVO MOTOR ai series, AC SPINDLE MOTOR ai series, SERVO AMPLIFIER ai series. MAINTENANCE MANUAL - page 8