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FANUC Series 0i-MODEL D, FANUC Series 0i Mate-MODEL D. MAINTENANCE MANUAL - page 14

B-64305EN/03

10.TROUBLESHOOTING

<Screen display example>

This example indicates that the I/O Link is as shown in the figure below.

I/O module for

Control unit

connector panel

JD51A

Group 0

Operator's panel I/O

module

Group 1

-

Checking the power supplies of the I/O devices

Check that the connected I/O devices are connected properly to the power supplies and that the voltages

are as prescribed.

Check that the power-on sequence is correct.

<Time at which an I/O device is to be turned on>

Before the CNC is turned on or within 500 ms after the CNC is turned on

If the CNC is turned off, the I/O device needs to be turned off once.

-

Checking cable connection

As in the example shown on the previous page, I/O Link cables are used to connect JD1A (JD51A) and

JD1B.

JD1A (JD51A) represents an upper unit while JD1B represents a lower unit.

Check that the cables are connected correctly.

-

Checking ground connection

Check that the ground wires are connected and are not loose.

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10.TROUBLESHOOTING

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Checking I/O connection

Check that the input/output signals to be connected to each I/O device are connected correctly.

For operator's panel I/O modules and for connector panel I/O modules, also check that the 0 V or +24 V

input signal is connected to the common pin and that the +24 V output signal is connected to the DO

common pin.

-

Checking I/O Link allocation

Check that I/O Link allocation has been performed correctly.

Press function key

, soft key

[PMCCNF], soft key [MODULE], and soft key [EDIT]. The

allocation edit screen appears.

After editing allocation, be sure to write the sequence program onto the flash ROM using the PMC data

I/O screen. Otherwise, the changes will be lost when the power is turned off.

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

AN UNEXPECTED ADDRESS

If data is input to an invalid address in a connector panel I/O unit (for example, data that should be input

to X004 is actually input to X010 in a connector panel I/O unit), the most likely causes are as follows:

(1) The I/O Link allocation is wrong.

→ Perform the check described in Section 10.8.

(2) The unit-to-unit cables (CA52-to-CA53) are not connected correctly.

If the connection is wrong, expansion unit 1 is allocated the address of expansion unit 3, as shown

below.

→ Connect the unit-to-unit cables as shown below:

Correct connection (the allocation starts with X0)

CA52

CA53 CA52

CA53 CA52

CA53

Basic

Expansion 1

Expansion 2

Expansion 3

X0-2

X3-5

X6-8

X9-11

Incorrect connection (the allocation starts with X0)

CA52

CA52 CA53

CA53 CA52

CA53

Basic

Expansion 1

Expansion 2

Expansion 3

X0-2

X9-11

X6-8

X3-5

(3) The setting of the rotary switch on an expansion unit is wrong

If the rotary switch is set to 1, one unit number is skipped. If set to 2, two unit numbers are skipped.

Usually, the setting must be 0. (For those units without a rotary switch, unit numbers cannot be

skipped.)

→ See the following example and refer to the Section 4.6, “SETTING I/O MODULES.”

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10.TROUBLESHOOTING

Example) Rotary switch setting on expansion unit 1=1

CA52

CA53

Basic

Expansion 1

X0-2

X6-8

⇐ X3 to X5 are skipped.

10.10 IN A CONNECTOR PANEL I/O UNIT, NO DATA IS OUTPUT

TO AN EXPANSION UNIT

The most likely cause is that power is not being supplied to the expansion unit.

→ Check whether +24-V power is supplied to No. 18 pin and No. 50 pin of the expansion unit, DI and

DO signals are not input and output.

→ Check whether +24-V power is supplied to No. 1 pin and No. 33 pin of the expansion unit, when DI

signals are input and DO signals are not output.

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10.TROUBLESHOOTING

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10.11 ALARM SR0085 TO SR0087 (READER/PUNCHER

INTERFACE ALARM)

START

YES

Alarm SR0085?

NO

-

Check baud rate and

other I/O parameters

-

I/O device is faulty

YES

Alarm SR0086?

NO

NO

Is I/O parameter

correct?

YES

-

Reset the parameter

according to the item

of data I/O.

OFF

Is power of I/O ?

ON

-

Turn on I/O device

NO

Is cable connection

right?

YES

-

Connect the cable

-

I/O device is faulty

-

Main board is faulty

Alarm SR0087?

-

I/O device is faulty

-

Main board d is faulty

Causes

(a) Parameters on reader/puncher interface are not correct.

Check the following setting data and parameters.

(b) External I/O device or host computer is faulty.

(c) Main board is faulty.

(d) Cable between NC and I/O device is faulty.

Countermeasures

(a) Parameters on reader/puncher interface are not correct.

Check the following setting data and parameters:

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10.TROUBLESHOOTING

-

Setting data

PUNCH CODE=0 OR 1 (0: EIA,1:ISO)

Select ISO or EIA according to the type of I/O device.

If punch code does not match, alarm SR0086 will generate.

-

Parameter

Value of parameter No. 0020

0

1

2

Function

Feed

0101#7

0111#7

0121#7

Data input/output code

0101#3

0111#3

0121#3

Stop bit

0101#0

0111#0

0121#0

Type of I/O device

102

112

122

Baud rate

103

113

123

0135#3

-

-

-

Communication method

RS-232C

MAIN BOARD

Connector

JD36A

JD36B

#7

#6

#5

#4

#3

#2

#1

#0

0101

NFD

ASI

SB2

0111

0121

NFD 0: Feed is output before and after data in data output

(FANUC PPR)

1: Feed is not output (standard).

ASI 0: EIA or ISO is used during input/output.

(Input: The code used is identified automatically.

Output: The code used depends on the punch code of setting data.)

1: ASCII codes are used during output.

(The punch code of setting data needs to be set to 1.)

SB2 0: No. of stop bits is 1.

1: No. of stop bits is 2.

0102

Type of I/O device

0112

0122

Value

TYPE OF I/O DEVICE

0

RS-232-C (Used control codes DC1 to DC4)

1

FANUC CASSETTE ADAPTOR 1 (FANUC CASSETTE B1/ B2)

2

FANUC CASSETTE ADAPTOR 3 (FANUC CASSETTE F1)

FANUC PROGRAM FILE Mate,

FANUC FA CARD ADAPTOR

3

FANUC FLOPPY CASSETTE ADAPTOR,

FANUC Handy File,

FANUC SYSTEM P-MODEL H

4

RS-232-C (Not used control codes DC1 to DC4)

5

Portable tape reader

FANUC PPR, FANUC SYSTEM P-MODEL G,

6

FANUC SYSTEM P-MODEL H

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10.TROUBLESHOOTING

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0103

Baud rate

0113

0123

Value

Baud rate

Value

Baud rate

7

600

10

4800

8

1200

11

9600

9

2400

12

19200

(b)

External I/O device or Host computer is in trouble

(i)

Check whether the setting on communication of external I/O device or host computer is the

same as that of the CNC. (baud rate, stop bits, etc.)

If they are not the same, change the setting.

(ii) When spare I/O device presents, check whether it is possible to realize communication using

the spare I/O device.

(c)

Main board is faulty

(i)

When parameter No.0020 is 0, 1, or 2 (JD36A, JD36B of Main board)

Replace the module since main board may be faulty.

(d)

Cable between CNC and I/O device is faulty.

Check the cable for disconnection or wrong connection.

-

Connection

Main board

RS-232-C (JD36A)

Punch panel

RS-232-C (JD36B)

Such as I/O device

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10.TROUBLESHOOTING

-

Cable connection

RS-232-C

(JD36A)

(JD36B)

Punch panel

RD

(01)

(03)

RD

0V

(02)

DR

(03)

(06)

DR

0V

(04)

CS

(05)

(05)

CS

0V

(06)

CD

(07)

(08)

CD

0V

(08)

(09)

+24V

(10)

SD

(11)

(02)

SD

0V

(12)

ER

(13)

(20)

ER

0V

(14)

RS

(15)

(04)

RS

0V

(16)

(07)

SG

(17)

(18)

+24V

(19)

(25)

+24V

(20)

(01)

FG

Shield

Connector : Half-pitch

Connector :DBM-25S

G

G

20-pins (PCR)

10.12 ALARM PS0090 (REFERENCE POSITION RETURN IS

ABNORMAL)

Contents

A reference position return was performed when the condition "the one turn signal is received more than

once when an axis is fed in the reference position return direction at a speed at which the positional

deviation (DGN.300) is 128 pulses or more" was not satisfied.

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10.TROUBLESHOOTING

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Countermeasures

START

Check whether the positional error amount (No. 300 value on the

Position error

diagnosis screen) in the reference position return direction is 128 or

amount : DGN

more during a reference position return or during axis movement

300

before a reference position return

YES

128 or more

(1) Next page

NO

Raise the speed

Check feed rate command:

Parameter No. 1420 F

:

Rapid traverse rate

[mm/min]

Parameter No. 1424

Manual rapid traverse rate

[mm/min]

Parameter No. 1825 G

:

Servo loop gain [0.01sec^-1]

F×5000/3

Position error =

G × detection unit [μm/PULSE]

Detection unit

: Move amount to a command pulse

Check rapid traverse override signals :

ROV1

ROV2

Override

ROV1 G014.0

0

0

100%

ROV2 G014.1

0

1

50%

1

0

25%

Parameter No. 1421 F0 rate

1

1

F0 rate

Check reference position return deceleration signal

*DEC1 to *DEC5 X009.0 to X009.4

When reference position return is started from deceleration signal 0, feed

rate becomes FL rate.

Parameter No. 1425 FL rate

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10.TROUBLESHOOTING

(1)

Check whether the motor rotated more than one

rotation (one rotation signal is issued ) at faster than

128 pulses of position error amount.

NO

Return start position is too close

Rotated ?

- Move the return start position away.

- Move the machine at faster that

YES

128 pulses for more than one

rotation to wards RP.

Check that voltage of Pulsecoder is higher than 4.75 V.

To measure Pulsecoder voltage, remove the motor cover and measure on

pulse coder PCB at across + and - or +5V and 0V terminals.

NO

More than 4.75V

YES

Hardware failure

Pulse coder power voltage is low

- Change Pulsecoder or motor

CAUTION

1 After replacing the pulse coder or motor, be sure to set the reference position

again.

2 A speed more than 128 pulses is required because if speed is lower that this,

one-rotation signal does not function stably, causing improper position detection.

3 If bit 0(PLC0) of parameter No. 2000 is set to 1, a speed corresponding to a

positional deviation of 1280 pulses or more is required.

4 Parameter No. 1836 can be set to 128 or less, as the minimum positional

deviation with which reference position return is possible. (If the parameter is set

to 0, 128 is assumed as the minimum positional deviation. When bit 0 (PLC0)

of parameter No. 2000 is 1, set the minimum positional deviation with which

reference position return is possible to 10 times the setting of parameter No.

1836.)

10.13 ALARM DS0300 (REQUEST FOR REFERENCE POSITION

RETURN)

Absolute position data in the serial Pulsecoder was lost.

(This alarm will be generated when serial Pulsecoder is exchanged or position feedback signal cable of

the serial Pulsecoder is disconnected).

Countermeasures

Machine position must be memorized using the following method:

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10.TROUBLESHOOTING

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-

When the deceleration dog is present

1

Execute manual reference position return only for an axis for which this alarm was generated. If

manual reference position return cannot be executed because another alarm occurs, clear the alarm

and then execute reference position return.

2

Press

key at the end of reference position return to release the alarm.

-

When the deceleration dog is not present

Execute dogless reference position setting to memorize the reference position.

-

When serial Pulsecoder is changed

Since the reference position is different from the former one, change the grid shift value (parameter No.

1850) to correct the position.

Related parameters

#7

#6

#5

#4

#3

#2

#1

#0

1815

APCx

APZx

#4 APZx Machine position and position on absolute position detector when the absolute position

detector is used

0: Not corresponding

1: Corresponding

When an absolute position detector is used, after primary adjustment is performed or after

the absolute position detector is replaced, this parameter must be set to 0, power must be

turned off and on, then manual reference position return must be performed. This

completes the positional correspondence between the machine position and the position

on the absolute position detector, and sets this parameter to 1 automatically.

#5 APCx Position detector

0: Other than absolute position detector

1: Absolute position detector (absolute pulse coder)

10.14 ALARM SV0401 (V READY OFF)

Causes and Countermeasures

This alarm is issued if the servo ready signal VRDY of a servo amplifier does not turn on or if the signal

turns off during operation.

There are cases in which this alarm is issued because another servo alarm is issued. If this occurs, first

take the action for the first alarm.

Check the power magnetic circuit around the amplifier. The servo amplifier or the axis cards on the CNC

may be defective.

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10.TROUBLESHOOTING

-

VRDY

CNC

Servo amplifier

MCON: From the CNC to the servo amplifier

(Turn MCC on to request the activation of the

servo motor)

VRDY: From the servo amplifier to the CNC

(Notifies that the servo is ready)

The exchange of this information is performed via the FSSB (optical cable).

-

Example of connection around the amplifier (Typical example)

Power

Servo

Servo

Spindle

Supply

amplifier

amplifier

amplifier

(PS)

Control

power

supply

Emergency stop

circuit

Serial spindle

Servo

Servo

Spindle

motor

motor

motor

3-phase

Circuit

AC

breaker

reactor

Single-p

hase

Circuit

breaker

Check items

• Check the value of diagnosis information No. 358 (V ready-off information), identify the possibly

faulty location according to the instructions of the information, and check the following items.

(For details of diagnosis information No. 358, see Subsection 1.3.2, “Contents Displayed,” in

Section 1.3, “DIAGNOSIS FUNCTION,” in this manual.)

-

Is the Power Supply (PS) control power supply on?

-

Has an emergency stop been canceled?

-

Is MCC on? If there is an external MCC sequence in addition to the MCC contact of the Power

Supply (PS), check that sequence also.

-

Is the power for driving MCC supplied?

-

Is the breaker on?

-

Has some alarm been issued in the Power Supply (PS) or spindle amplifier?

-

Replacing the servo amplifier

If no problem is found in the power magnetic circuit around the amplifier, replace the servo amplifier.

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10.TROUBLESHOOTING

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-

Replacing the axis cards

If the above action does not solve the problem, replace the axis cards.

10.15 ALARM SV0404 (V READY ON)

Causes and Countermeasures

This alarm is issued if the servo ready signal (VRDY) of a servo amplifier remains on.

The servo amplifier or the axis cards on the CNC may be defective.

-

VRDY

CNC

Servo amplifier

MCON: From the CNC to the servo amplifier

(Turn MCC on to request the activation of the

servo motor)

VRDY: From the servo amplifier to the CNC

(Notifies that the servo is ready)

The exchange of this information is performed via the FSSB (optical cable).

This alarm is issued if VRDY remains on when the CNC turns MCON off or if VRDY turns on before the

CNC turns MCON on.

-

Replacing the servo amplifier

The servo amplifier may be defective. Replace the servo amplifier.

-

Replacing the axis cards

If replacing the servo amplifier does not solve the problem, replace the axis cards.

10.16 ALARM SV0462 (SEND CNC DATA FAILED)

ALARM SV0463 (SEND SLAVE DATA FAILED)

Causes and Countermeasures

Alarm SV0462 is issued if a slave (servo amplifier) cannot receive correct data due to an FSSB

communication error.

Alarm SV0463 is issued if the CNC cannot receive correct data due to an FSSB communication error.

If these alarms are issued, the alarm message indicates the number of the defective axis (axis name).

-

Servo amplifier or optical cable

Any of the optical cables between the amplifier corresponding to the axis number indicated by the alarm

message and the CNC controller may be defective.

Or, any of the first amplifier to the amplifier corresponding to that axis number may be defective.

-

Axis cards

The axis cards installed on the CNC may be defective.

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10.TROUBLESHOOTING

10.17 ALARM SV0417 (DIGITAL SERVO SYSTEM IS

ABNORMAL)

Digital servo parameters are abnormal.

(Digital servo parameters are set incorrectly.)

Countermeasures

1

Confirm the setting value of the following parameters:

Parameter No. 2020

: Motor format number

Parameter No. 2022

: Motor rotation direction

Parameter No. 2023

: Number of pulses of velocity feedbacks

Parameter No. 2024

: Number of pulses of position feedback

Parameter No. 1023

: Servo axis number

Parameter No. 2084

: Flexible feed gear ratio

Parameter No. 2085

: Flexible feed gear ratio

Confirm the details with diagnosis function of CNC side.

2

Change the setting of this parameter to 0.

Parameter No. 2047

: Observer parameter

10.18 ALARM OH0700 (OVERHEAT: CONTROL UNIT)

Causes and Countermeasures

This alarm is issued if the ambient temperature of the CNC control unit is abnormally high. As an

installation condition, the ambient temperature of the CNC must not exceed 58°C (for LCD-mounted type

CNC) or 55°C (for stand-alone type CNC).

-

Ambient temperature

A temperature monitoring circuit is installed on the main board, and causes this alarm to be issued if the

ambient temperature is abnormally high.

Take appropriate action to the cabinet that houses the CNC control unit so that the temperature falls

within the proper temperature range (0 to 58°C (for LCD-mounted type CNC) or 0 to 55°C (for

stand-alone type CNC)).

If it is obvious that the ambient temperature is not abnormal, the main board may be defective.

10.19 ALARM OH0701 (OVERHEAT: FAN MOTOR)

Causes and Countermeasures

This alarm is issued if a fault occurs in any of the fan motors, such as the stoppage of a fan motor during

the operation of the CNC.

-

Fan motors

Fan motors are installed in the uppermost portion of the CNC control unit. This alarm is issued if a fault

such as a stoppage occurs.

If this alarm is issued, replace the fan motor according to "2.9 REPLACING FAN MOTORS" or "3.8

REPLACING A FAN UNIT".

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10.20 ALARM SV5134 (FSSB: OPEN READY TIME OUT)

ALARM SV5137 (FSSB: CONFIGURATION ERROR)

ALARM SV5197 (FSSB: OPEN TIME OUT)

Causes and Countermeasures

These alarms are issued due to a failure in the optical cable, axis card, or a slave such as a servo amplifier

connected to the FSSB.

No.

Message

Description

SV5134

FSSB:OPEN READY

In the initialization, the FSSB could not be in an open ready sate. The axis

TIME OUT

card is thought to be defective.

SV5137

FSSB:CONFIGURATION

An FSSB configuration error occurred.

ERROR

The connecting amplifier type is incompatible with the FSSB setting value.

SV5197

FSSB:OPEN TIME OUT

The FSSB cannot be opened even though the CNC allowed the FSSB to

be opened.

Or, the connection between the CNC and the amplifier in is incorrect.

-

Checking the parameter settings

Check that the FSSB-related parameters are set correctly.

-

Power supplies of the servo amplifiers

Check the power supplies of the servo amplifiers connected to the FSSB.

-

Replacing the axis cards, optical cables, and servo amplifiers

Replace the axis cards on the CNC.

Replace the optical cables and servo amplifiers connected to the FSSB, one at a time, to identify the

defective item.

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

Causes and Countermeasures

The number of servo amplifiers recognized by the FSSB is insufficient, compared with the number of

controlled axes.

-

FSSB setting screen

If this alarm is issued, display the amplifier setting screen from the FSSB setting screen. Only the servo

amplifiers recognized on the FSSB are displayed.

-

Optical cable or servo amplifier

The optical cable that connects together the last recognized amplifier and the next one may be defective.

Or, either of the amplifiers connected together with that optical cable may be defective. Check the power

supplies of the amplifiers.

-

Power fault of a servo amplifier

This alarm may be issued if a power fault occurs in a servo amplifier. A power fault occurs if the

amplifier control power supply voltage drops, if the +5 V conductor of the Pulsecoder cable is ground, or

for other reasons.

-

Axis cards

The axis cards installed on the CNC may be defective.

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10.22 SERVO ALARMS (SV04**, SV06**)

For an explanation of the following servo alarms, refer to the FANUC AC SERVO MOTOR αi series,

AC SPINDLE MOTOR αi series, SERVO AMPLIFIER αi series Maintenance Manual (B-65285EN).

Number

Message

Description

SV0417

ILL DGTL SERVO PARAMETER

A digital serve parameter setting is incorrect.

[When bit 4 of diagnosis information No. 203 is 1.]

An illegal parameter was detected by the servo software. Identify

the cause with reference to diagnosis information No. 352.

[When bit 4 of diagnosis information No. 203 is 0.]

The CNC software detected an illegal parameter. Probable

causes are given below (see diagnosis information No. 280).

1) The value specified in parameter No. 2020 as the motor model

falls outside the specified range.

2) The motor rotation direction in parameter No. 2022 is not set to

a correct value (111 or -111).

3) The speed feedback pulse count per motor rotation in

parameter No. 2023 is set to a negative or other incorrect value.

4) The position feedback pulse count per motor rotation in

parameter No. 2024 is set to a negative or other incorrect value.

SV0420

SYNC TORQUE EXCESS

In feed axis control , for synchronization, the difference value of

torque between a master and slave axes exceeded the parameter

(No. 2031) setting value. This alarm occurs for a master axis.

SV0421

EXCESS ERROR(SEMI-FULL)

The difference between the feedback from the semi and full sides

exceeded the setting of parameter No.1729.

SV0422

EXCESS VELOCITY IN

In torque control, the commanded permissible velocity was

TORQUE

exceeded.

SV0423

EXCESS ERROR IN TORQUE

In torque control, the total permissible move value specified as a

parameter was exceeded.

SV0430

SV MOTOR OVERHEAT

The servo motor has overheated.

SV0431

CNV. OVERLOAD

Power Supply (PS) : Overheat

Servo Amplifier

: Overheat

SV0432

CNV. LOW VOLT CONTROL

Power Supply (PS) : The control power supply voltage has

dropped.

Servo Amplifier

: The control power supply voltage has

dropped.

SV0433

CNV. LOW VOLT DC LINK

Power Supply (PS) : Low DC link voltage

Servo Amplifier

: Low DC link voltage

SV0434

INV. LOW VOLT CONTROL

Servo Amplifier

: Low control power voltage

SV0435

INV. LOW VOLT DC LINK

Servo Amplifier

: Low DC link voltage

SV0436

SOFTTHERMAL(OVC)

The digital servo software detected a software thermal (OVC).

SV0437

CNV. OVERCURRENT POWER

Power Supply (PS) : Overcurrent on input circuit section.

SV0438

INV. ABNORMAL CURRENT

Servo Amplifier

: Motor overcurrent

SV0439

CNV. OVER VOLT DC LINK

Power Supply (PS) : The DC link voltage is too high.

Servo Amplifier

: The DC link voltage is too high.

SV0440

CNV. EX DECELERATION

Power Supply (PS) : Excessive generative discharge

POW.

Servo Amplifier

: Excessive generative discharge, or

abnormal error in generative power circuit

SV0441

ABNORMAL CURRENT

The digital servo software detected an abnormality in the motor

OFFSET

current detection circuit.

SV0442

CNV. CHARGE FAILURE

Power Supply (PS) : The spare charge circuit for the DC link is

abnormal.

SV0443

CNV. COOLING FAN FAILURE

Power Supply (PS) : Internal cooling fan failure.

Servo Amplifier

: Internal cooling fan failure.

SV0444

INV. COOLING FAN FAILURE

Servo Amplifier

: Internal cooling fan failure.

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Number

Message

Description

SV0445

SOFT DISCONNECT ALARM

The digital servo software detected a disconnected Pulsecoder.

SV0446

HARD DISCONNECT ALARM

The hardware detected a disconnected built-in Pulsecoder.

SV0447

HARD DISCONNECT(EXT)

The hardware detected a disconnected separate detector.

SV0448

UNMATCHED FEEDBACK

The sign of the feedback signal from the standalone detector is

ALARM

opposite to that from the feedback signal from the built-on

Pulsecoder.

SV0449

INV. IPM ALARM

Servo Amplifier

: The IPM (Intelligent Power Module) detected

an alarm.

SV0453

SPC SOFT DISCONNECT

Software disconnection alarm of the α Pulsecoder.

ALARM

Turn off the power to the CNC, then remove and insert the

Pulsecoder cable. If this alarm is issued again, replace the

Pulsecoder.

SV0454

ILLEGAL ROTOR POS DETECT

The magnetic pole detection function terminated abnormally.

The magnetic pole could not be detected because the motor did

not run.

SV0456

ILLEGAL CURRENT LOOP

An attempt was made to set the current loop that could not be set.

The amplifier pulse module in use does not comply with HIGH

SPEED HRV. Or, requirements to control are not satisfied in the

system.

SV0458

CURRENT LOOP ERROR

The specified current loop differs from the actual current loop.

SV0459

HI HRV SETTING ERROR

For two axes whose servo axis numbers (parameter No. 1023) are

consecutively even and odd numbers, HIGH SPEED HRV control

is possible for one axis and impossible for the other.

SV0460

FSSB DISCONNECT

The FSSB connection was discontinued.

Probable causes are:

1) The FSSB connection cable was disconnected or broken.

2) The amplifier was turned off .

3) In the amplifier, the low-voltage alarm occurred.

SV0462

SEND CNC DATA FAILED

The correct data could not be received on a slave side because of

the FSSB communication error.

SV0463

SEND SLAVE DATA FAILED

The correct data could not be received in the servo software side

because of the FSSB communication error.

SV0465

READ ID DATA FAILED

A read of the ID information for the amplifier has failed at

power-on.

SV0466

MOTOR/AMP. COMBINATION

The maximum current of an amplifier is different to that of a motor.

Probable causes are:

1) The connection command for an amplifier is incorrect.

2) The parameter (No.2165) setting is incorrect

SV0468

HI HRV SETTING ERROR(AMP)

An attempt was made to set up HIGH SPEED HRV control for use

when the controlled axis of an amplifier for which HIGH SPEED

HRV control could not be used.

SV0600

INV. DC LINK OVER CURRENT

DC link overcurrent.

SV0601

INV. RADIATOR FAN FAILURE

External radiator cooling fan failure.

SV0602

INV. OVERHEAT

The servo motor has overheated.

SV0603

INV. IPM ALARM(OH)

The IPM (Intelligent Power Module) detected an overheat alarm.

SV0604

AMP. COMMUNICATION

The communication between Servo amplifier and Power Supply

ERROR

(PS) is in error.

SV0605

CNV. EX. DISCHARGE POW.

Power Supply (PS) : The motor regenerative power is too much.

SV0606

CNV. RADIATOR FAN FAILURE

Power Supply (PS) : External radiator cooling fan failure.

SV0607

CNV. SINGLE PHASE FAILURE

Power Supply (PS) : The input power supply has a missing phase.

If the hardware on the CNC is suspected to be defective as a result of examination, replace the axis cards.

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10.23 SPC ALARMS (SV03**)

For an explanation of the following SPC alarms (serial Pulsecoder alarms), refer to the FANUC AC

SERVO MOTOR αi series, AC SPINDLE MOTOR αi series, SERVO AMPLIFIER αi series

Maintenance Manual (B-65285EN).

Number

Message

Description

SV0360

ABNORMAL CHECKSUM(INT)

The checksum alarm occurred on the built-in Pulsecoder.

SV0361

ABNORMAL PHASE

The phase data abnormal alarm occurred on the built-in

DATA(INT)

Pulsecoder.

SV0362

ABNORMAL REV. DATA(INT)

The speed count abnormal alarm occurred on the built-in

Pulsecoder.

SV0363

ABNORMAL CLOCK(INT)

The clock alarm occurred on the built-in Pulsecoder.

SV0364

SOFT PHASE ALARM(INT)

A digital servo soft detected an abnormality on the built in

Pulsecoder.

SV0365

BROKEN LED(INT)

The digital servo software detected abnormal data on the built-in

Pulsecoder.

SV0366

PULSE MISS(INT)

A pulse error occurred on the built-in Pulsecoder.

SV0367

COUNT MISS(INT)

A count error occurred on the built-in Pulsecoder.

SV0368

SERIAL DATA ERROR(INT)

The communications data could not be received from the built-in

Pulsecoder.

SV0369

DATA TRANS. ERROR(INT)

A CRC error or stop bit error occurred in the communications data

from the built-in Pulsecoder.

SV0380

BROKEN LED(EXT)

Separate detector error

SV0381

ABNORMAL PHASE (EXT)

An abnormal alarm in the position data occurred on the separate

detector.

SV0382

COUNT MISS(EXT)

A count error occurred on the separate detector.

SV0383

PULSE MISS(EXT)

A pulse error occurred on the separate detector.

SV0384

SOFT PHASE ALARM(EXT)

The digital servo software detected abnormal data on the separate

detector.

SV0385

SERIAL DATA ERROR(EXT)

The communications data could not be received from the separate

detector.

SV0386

DATA TRANS. ERROR(EXT)

A CRC error or stop bit error occurred in the communications data

from the standalone detector.

SV0387

ABNORMAL ENCODER(EXT)

An abnormality occurred on a separate detector. For more

information, contact the scale manufacturer.

10.24

SPINDLE ALARMS (SP90**)

For an explanation of the following spindle alarms, refer to the FANUC AC SERVO MOTOR αi series,

AC SPINDLE MOTOR αi series, SERVO AMPLIFIER αi series Maintenance Manual (B-65285EN).

Number

Contents

SP9001 to later: Spindle_n

n-th spindle alarm (Spindle alarm display 01 or larger)

10.25 SYSTEM ALARMS (SYS ALM***)

10.25.1 Overview

The CNC makes a transition to the special processing state called the system alarm state when a state that

disables the continuation of normal system operation is detected.

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When the system alarm state is entered, the CNC screen display is switched and the following operations

are performed:

• Servo and spindle amplifier excitation is turned off.

• Disconnection of I/O link communication

Example of system alarm screen

Types of System Alarms

System alarms are classified into three types according to the following causes:

• Software causes

• Hardware causes

• Others

-

Software causes

Mainly, the CNC system software detects software errors.

Typical causes are as follows:

• Conflict in processing/data detected by the internal state monitoring software

• Access to outside of the valid data/instruction ranges

• Division by zero

• Stack overflow

• Stack underflow

• DRAM checksum error

-

Hardware causes

Mainly, hardware detects hardware errors.

Typical causes are as follows:

• Parity error (DRAM, SRAM, cache)

• Bus error

• Power supply alarm

• FSSB cable disconnection

-

Others

Moreover, system alarms are caused by the following:

• Causes detected by peripheral software

• Servo software (such as watchdog)

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• PMC software (such as an I/O link communication error)

10.25.2 Operations on the System Alarm Screen

Description of system alarm screen

When a system alarm is issued, the screen display is switched to a screen as shown below.

This screen is referred to as the system alarm screen.

The system alarm screen consists of several pages of information.

The following key operations are used:

,

Switches between pages.

Executes the IPL monitor.

Saving of system alarm information

Various information items related to a system alarm are automatically saved in the SRAM.

The SRAM can store information about the latest two system alarms.

If a third system alarm is issued when information about the latest two system alarms is stored, the

information about the oldest system alarm is discarded, and information about the new system alarm is

saved.

Output of system alarm information

The system alarm information, which was automatically saved in the SRAM, can be output to a memory

card with the IPL monitor.

1.

Start the IPL monitor.

If the system alarm screen is displayed when a system alarm is issued, press the reset key.

If the power is turned off, turn on the power while holding down "-" and ".".

2.

On the IPL monitor screen, enter 5 to select "5. SYSTEM ALARM UTILITY".

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3.

Enter 2 to select "2. OUTPUT SYSTEM ALARM FILE".

4.

If the IPL monitor is executed on the system alarm screen, enter 2 to select "2. OUTPUT SYSTEM

ALARM FILE FROM DRAM".

If the power is turned off, enter

1 to select "1. OUTPUT SYSTEM ALARM FILE FROM

FILE-RAM".

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5.

If 1 is selected in step 4, a list of saved system alarms is displayed. Enter the number of a file to be

output.

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6.

Enter the name of a file to be output to the memory card and output the file.

10.25.3 System Alarms Detected by Hardware

System alarm 400 and subsequent system alarms indicate errors detected by hardware.

The basic screen configuration is shown below:

(1)D4F1 ｰ 01.0

(2)

SYS_ALM401 EXTERNAL BUS INVALID ADDRESS

(3)

MAIN BOARD

(4)

2008/04/22 17:09:53

(5)

PROGRAM COUNTER

: 1000B52CH

｜

ACT TASK

: 01000010H

｜

ACCESS ADDRESS

:

-

｜

ACCESS DATA

:

-

↓

ACCESS OPERATION :

-

(6)

BUS MASTER PCB

: ETC

｜

+--+----------+-----------------------------------------------------+

｜

02 ETC

03012003 22110000 80010000 00000000 00010000 00000000

｜

FFFFFFFF FFFFFFFF 68C08216 70FE0000 00000000 00000000

｜

00000000 00000000 00000000 00000000 00000000

｜

｜

BUS SLAVE PCB

: CPU

｜

+--+----------+-----------------------------------------------------+

｜

00 CPU

02071004 20100000 00000000 00000000 00000000 00000000

｜

FFFFFFFF FFFFFFFF 10B0FC00 CFF90001 68C30061 82160010

｜

000000F0 00000000 00010000 00000000 00000000

｜

｜

INFORMATION REGISTER

｜

+--+----------+-----------------------------------------------------+

↓

02 ETC

00000000 00000000 00000000 00000000

PAGE UP OR DOWN (PAGE

1/8)

[Description of the message screen]

(1): Device name, and series and edition of CNC system software

(2): System alarm number and error message

(3): Most possibly faulty component

(4): Date and time when the error occurred

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(5): Software error and other information when the error occurred

(6): Bus information when the error occurred

Item (3) indicates the most possibly faulty component. Mainly, check the

component to see whether it is defective.

Information on the system alarm screen can be output as a text file through the PCMCIA port of the

display unit. Contact the FANUC service department after obtaining the information.

For the method of outputting it, see Section 10.25.2, "Operations on the System Alarm Screen".

Main errors are described on the following pages.

System Alarm 401 (EXTERNAL BUS INVALID ADDRESS)

D4F1 ｰ 01.0

SYS_ALM401 EXTERNAL BUS INVALID ADDRESS

MAIN BOARD

2008/04/21 20:34:16

PROGRAM COUNTER

: 1000B52CH

ACT TASK

: 01000010H

ACCESS ADDRESS

:

-

ACCESS DATA

:

-

ACCESS OPERATION :

-

BUS MASTER PCB

: ETC

+--+----------+-----------------------------------------------------+

02 ETC

03012003 22110000 80010000 00000000 00010000 00000000

FFFFFFFF FFFFFFFF 68C08216 70FE0000 00000000 00000000

00000000 00000000 00000000 00000000 00000000

BUS SLAVE PCB

: CPU

+--+----------+-----------------------------------------------------+

00 CPU

02071004 20100000 00000000 00000000 00000000 00000000

FFFFFFFF FFFFFFFF 10B0FC00 CFF90001 68C30061 82160010

000000F0 00000000 00010000 00000000 00000000

INFORMATION REGISTER

+--+----------+-----------------------------------------------------+

02 ETC

00000000 00000000 00000000 00000000

PAGE UP OR DOWN (PAGE

1/8)

Description

A problem occurred on a CNC bus.

Causes

The printed circuit board may be defective or external noise may affect the bus.

Countermeasures

Replace the displayed most possibly faulty component. In addition, the main board, or the part shown as

“BUS MASTER PCB” or “BUS SLAVE PCB” displayed on the system alarm screen may be defective.

This error may also be caused by external noise.

Check whether there is a noise origin around the machine and whether the machine is grounded properly.

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System Alarm 403 (S-BUS TIME OUT ERROR)

D4F1 ｰ 01.0

SYS_ALM403 S-BUS TIME OUT ERROR

MAIN BOARD

2008/04/21 21:24:12

PROGRAM COUNTER

: 102FD028H

ACT TASK

: 01000010H

ACCESS ADDRESS

:

-

ACCESS DATA

:

-

ACCESS OPERATION :

-

BUS MASTER PCB

: CPU

+--+----------+-----------------------------------------------------+

00 CPU

02071004 20100000 00000000 00000000 00040000 00000000

FFFFFFFF FFFFFFFF 00A88820 C3F90000 00000000 00000000

00000000 00000000 00000000 00000000 00000000

BUS SLAVE PCB

: ETC

+--+----------+-----------------------------------------------------+

02 ETC

03012003 22110000 A0000000 00000000 00000000 00000000

FFFFFFFF FFFFFFFF 00A88820 C3010000 00000000 00000000

00000000 00000000 00000000 00000000 00000000

INFORMATION REGISTER

+--+----------+-----------------------------------------------------+

02 ETC

00000000 00000000 00000000 00000000

PAGE UP OR DOWN (PAGE

1/8)

Description

A problem occurred on a CNC bus.

Causes

The printed circuit board may be defective.

Countermeasures

Replace the displayed most possibly faulty component. In addition, the main board, or the part shown as

“BUS MASTER PCB” or “BUS SLAVE PCB” displayed on the system alarm screen may be defective.

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System Alarm 404 (ECC UNCORRECTABLE ERROR)

D4F1 ｰ 01.0

SYS_ALM404 ECC UNCORRECTABLE ERROR

MAIN BOARD

2008/04/22 17:09:53

PROGRAM COUNTER

: 100DB2E0H

ACT TASK

: 0100FFFBH

ACCESS ADDRESS

:

-

ACCESS DATA

:

-

ACCESS OPERATION :

-

BUS MASTER PCB

: ETC

+--+----------+-----------------------------------------------------+

02 ETC

03012003 22110000 80010000 00000000 00080000 00000000

FFFFFFFF FFFFFFFF 68C08216 70FE0000 00000000 00000000

00000000 00000000 00000000 00000000 00000000

BUS SLAVE PCB

: CPU

+--+----------+-----------------------------------------------------+

00 CPU

02071004 20100000 00000000 00000000 00000000 00000000

FFFFFFFF FFFFFFFF 10B0FC00 CFF90001 68C30061 82160010

000000F0 00000000 00010000 00000000 00000000

INFORMATION REGISTER

+--+----------+-----------------------------------------------------+

02 ETC

00000000 00000000 00000000 00000000

PAGE UP OR DOWN (PAGE

1/8)

Description

A problem occurred on a CNC bus.

Causes

The printed circuit board may be defective or external noise may affect the bus.

Countermeasures

Replace the displayed most possibly faulty component.

This error may also be caused by external noise.

Check whether there is a noise origin around the machine and whether the machine is grounded properly.

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System Alarm 502 (NOISE ON POWER SUPPLY)

D4F1 ｰ 01.0

SYS_ALM502 NOISE ON POWER SUPLY

POWER SUPPLY

2008/04/21 21:26:52

PROGRAM COUNTER

: 1000C0C4H

ACT TASK

: 30000001H

ACCESS ADDRESS

:

-

ACCESS DATA

:

-

ACCESS OPERATION :

-

BUS MASTER PCB

: ETC

+--+----------+-----------------------------------------------------+

02 ETC

03012003 22110000 A0000000 00000000 00001000 00000000

FFFFFFFF FFFFFFFF 822088A3 C3FE0001 00000000 00000000

00000000 00000000 00000000 00000000 00000000

BUS SLAVE PCB

: ETC

+--+----------+-----------------------------------------------------+

02 ETC

03012003 22110000 A0000000 00000000 00004000 00000000

FFFFFFFF FFFFFFFF 822088A3 C3FE0001 00000000 00000000

00000000 00000000 00000000 00000000 00000000

INFORMATION REGISTER

+--+----------+-----------------------------------------------------+

02 ETC

00000000 00000000 00000000 00000000

PAGE UP OR DOWN (PAGE

1/8)

Description

Noise or an instantaneous power failure occurred in the CNC power supply.

Causes

A power fault occurs.

Countermeasures

Find and remove the cause of the error.

This error may damage SRAM data.

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System Alarm 503 (ABNORMAL POWER SUPPLY)

D4F1 ｰ 01.0

SYS_ALM503 NOISE ON POWER SUPLY

ABNORMAL POWER SUPPLY

2008/04/21 21:26:52

PROGRAM COUNTER

: 1000C0C4H

ACT TASK

: 30000001H

ACCESS ADDRESS

:

-

ACCESS DATA

:

-

ACCESS OPERATION :

-

BUS MASTER PCB

: ETC

+--+----------+-----------------------------------------------------+

02 ETC

03012003 22110000 A0000000 00000000 00001000 00000000

FFFFFFFF FFFFFFFF 822088A3 C3FE0001 00000000 00000000

00000000 00000000 00000000 00000000 00000000

BUS SLAVE PCB

: ETC

+--+----------+-----------------------------------------------------+

02 ETC

03012003 22110000 A0000000 00000000 00004000 00000000

FFFFFFFF FFFFFFFF 822088A3 C3FE0001 00000000 00000000

00000000 00000000 00000000 00000000 00000000

INFORMATION REGISTER

+--+----------+-----------------------------------------------------+

02 ETC

00000000 00000000 00000000 00000000

PAGE UP OR DOWN (PAGE

1/8)

Description

A fault occurred in the power supply on the main board.

Causes

The power supply is defective.

Countermeasures

Replace the power supply.

10.25.4 System Alarms 114 to 137 (Alarms on the FSSB)

Causes

An alarm was detected on the FSSB.

NOTE

When the message is followed by /LINE1, it indicates the number (COP10A-1) of

the optical connector on the axis card.

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SYS_ALM114 FSSB DISCONNECTION

114: Communication between the axis card and 1st servo

(MAIN -> AMP1) /LINE1

amplifier failed.

SYS_ALM115 FSSB DISCONNECTION

115: Communication between the axis card and 1st

(MAIN -> PULSE MODULE1) /LINE1

separate detector interface unit failed.

SYS_ALM116 FSSB DISCONNECTION

116: Communication between the nth and mth servo

(AMPn -> AMPm) /LINE1

amplifiers failed.

SYS_ALM117 FSSB DISCONNECTION

117: Communication between the nth servo amplifier and

(AMPn -> PULSE MODULEm) /LINE1

mth separate detector interface unit failed.

SYS_ALM118 FSSB DISCONNECTION

118: Communication between the nth separate detector

(PULSE MODULEn -> AMPm) /LINE1

interface unit and mth servo amplifier failed.

SYS_ALM119 FSSB DISCONNECTION

119: Communication between the 1st and 2nd separate

(PULSE MODULE1 -> PULSE MODULE2)

detector interface units failed.

/LINE1

SYS_ALM120 FSSB DISCONNECTION

120: Communication between the axis card and 1st servo

(MAIN <- AMP1) /LINE1

amplifier failed.

SYS_ALM121 FSSB DISCONNECTION

121: Communication between the axis card and 1st

(MAIN <- PULSE MODULE1) /LINE1

separate detector interface unit failed.

SYS_ALM122 FSSB DISCONNECTION

122: Communication between the nth and mth servo

(AMPn <- AMPm) /LINE1

amplifiers failed.

SYS_ALM123 FSSB DISCONNECTION

123: Communication between the nth servo amplifier and

(AMPn <- PULSE MODULEm) /LINE1

mth separate detector interface unit failed.

SYS_ALM124 FSSB DISCONNECTION

124: Communication between the nth separate detector

(PULSE MODULEn <- AMPm) /LINE1

interface unit and mth servo amplifier failed.

SYS_ALM125 FSSB DISCONNECTION

125: Communication between the 1st and 2nd separate

(PULSE MODULE1 <- PULSE MODULE2)

detector interface units failed.

/LINE1

Replace the optical cable for the relevant connection. If

the alarm persists, replace the axis card, corresponding

servo amplifier, and corresponding separate detector

interface unit.

When the arrow points to the left, a power fault may occur

in the servo amplifier or separate detector interface unit at

the base of the arrow. Check the +24 V power supply

input to the relevant unit and the +5 V power supply for the

pulse coder output from the relevant unit for an error such

as a ground fault.

SYS_ALM126 FSSB INTERNAL DISCONNECTION

126: Internal communication in the nth servo amplifier

(AMPn) ->

/LINE1

failed.

SYS_ALM127 FSSB INTERNAL DISCONNECTION

127: Internal communication in the nth servo amplifier

(AMPn) <-

/LINE1

failed.

Replace the relevant servo amplifier.

SYS_ALM129 ABNORMAL POWER SUPPLY

129: A fault was detected in the power supply of the nth

(SERVO:AMPn) /LINE1

servo amplifier.

SYS_ALM130 ABNORMAL POWER SUPPLY

130: A fault was detected in the power supply of the nth

(SERVO:PULSE MODULEn) /LINE1

separate detector interface unit.

Check the power supply of the relevant servo amplifier or

separate detector interface unit.

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