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

B-63525EN/02

11.TROUBLESHOOTING

11.32

ALARM 935

(SRAM ECC ERROR)

Causes and actions

An ECC error occurred in the SRAM used to store data such as parameters

and machining programs.

This alarm is issued if the battery has run down or if the data in the SRAM

is destroyed due to some external cause. Or, the FROM/SRAM module

or motherboard may be defective.

D ECC check

This is the method of checking the data stored in the SRAM. It has been

employed instead of the conventional parity check.

With the ECC check method, 8-bit correction data is provided for 16-bit

data, so that if a data error occurs in one of these 16 bits, the error is

automatically corrected with the correction data, allowing the CNC to

continue operation. This alarm is issued if a data error occurs in two or

more bits.

With the conventional parity check method, a system alarm is issued if a

data error occurs even in one bit.

D Checking the battery

The battery is rated 3 V. A battery alarm is issued and “BAT” flashes on

the screen if the voltage of the battery drops to 2.6 V.

If a battery alarm is issued, replace the battery with a new one promptly.

D Performing memory all

Perform a memory all clear operation, then start up the CNC.

clear

Alternatively, if a backup of the data in the SRAM has been made, use the

backup to restore the data. To back up and restore the data in the SRAM,

use the boot system.

D Replacing the

If memory all clear or the restoration of the data with a backup does not

FROM/SRAM module

solve the problem, replace the FROM/SRAM module. Take a backup

copy in advance. All the software must be restored after the replacement.

After replacing the FROM/SRAM module, perform a memory all clear

operation and start up the CNC. All the data must be re-loaded.

If a backup is available, restore the data using the backup, then start up

the CNC.

D Motherboard

If any of the above actions does not solve the problem, replace the

motherboard.

813

B-63525EN/02

11.TROUBLESHOOTING

11.33

ALARM 950

(PMC SYSTEM

ALARM)

Causes and actions

This alarm is issued if a fault is detected in the PMC.

The probable causes include an I/O link communication error and a

defective PMC control circuit

D Connecting the I/O Link

The I/O Link is a serial interface that connects the CNC to various I/O

devices and allows transfers of I/O signals between devices at high speed.

When multiple devices are connected using the I/O Link, there forms a

relationship that a certain device is a master and the other devices are

slaves. The states of the input signals from the slaves are transferred to

the master at fixed intervals. The output signals from the master are

transferred to the slaves at fixed intervals. In a CNC system, the master

is the CNC (motherboard or main CPU board).

The I/O signals transferred via the I/O link can be used with the PMC

Ladder.

Master station (CNC)

Slave station #0

Group 0

Slave station #1

Group 1

Up to 16 groups

D I/O Link communication

If alarm 950 is issued, displaying “PC050” on the screen, an I/O link

error PC050

communication error may have occurred.

Screen display example

SYSTEM ALARM

950 PMC SYSTEM ALARM

PC050 I/OLINK(CH1)

xx:yy-aa:bb

PC050 I/OLINK(CH2)

aa:bb-xx:yy

PC050 IOLINK CH1

aabb-xxyy:aabb

PC050 IOLINK CH2

aabb:aabb-xxyy

In this screen display example, the cause of the alarm can be estimated

using xx:yy. xx and yy are hexadecimal representations. CH1 and CH2

are channels on which communication failed.

815

11. TROUBLESHOOTING

B-63525EN/02

If bit 0 of the binary representation of xx is “1”, this indicates that the

master station (CNC) received invalid communication data. For

example, assume that the following is displayed on the screen:

SYSTEM ALARM

950 PMC SYSTEM ALARM

PC050 IOLINK CH1

aabb-4142:aabb

xx is equal to 41, or “01000001” in binary notation. Bit 0, which is

the lowest (rightmost) bit, is “1”.

In this case, check the following:

(1) Noise environment of the I/O Link cable

Noise may disturb the data on the I/O Link and may result in a

problem.

(2) Contact of the I/O Link cable

Check that the I/O link cable is in contact. Check that the cable is

not loose and is latched firmly.

(3) Cable failure

Check that the I/O Link cable is connected properly.

(4) Device failure

The motherboard or any of the I/O devices connected to the I/O

Link may be defective. Replace the devices, one at a time, to

identify the defective device.

Refer to 2) if bit 1 (second bit from the right) is also “1”.

If bit 1 of the binary representation of xx is “1”, this indicates that an

error was detected on a slave station (I/O device). For example,

assume that the following is displayed on the screen:

SYSTEM ALARM

950 PMC SYSTEM ALARM

PC050 IOLINK CH1

aabb-4382:aabb

xx is equal to 43, or “01000011” in binary notation. Bit 1 (second bit

from the right) is “1”.

In this case, yy indicates the following:

Number equal to the number indicated by bits 0 to 4 of yy minus 1:

Group number of the slave station on which an error was detected

Bit 5 of yy:

Invalid communication data was detected on the slave.

Bit 6 of yy:

Another error was detected on the slave.

Bit 7 of yy:

A watchdog or parity error was detected on the slave.

In the example shown in the figure above, yy is equal to 82, or

“10000010” in binary notation. Bits 0 to 4 are “00010” (2 in decimal

notation). The number “1”, which is equal to that number minus 1, is

the group number of the slave station on which an error was detected.

Bit 7 is “1”. Thus, a watchdog or parity error was detected on the slave

station in group 1.

816

B-63525EN/02

11.TROUBLESHOOTING

In this case, check the following:

(1) If bit 5 of yy is “1”

Perform examination with the same procedure as that in 1).

(2) If bit 6 of yy is “1” or if bit 7 of yy is “1”

First, replace the device of the slave station of the indicated group

number.

If the problem is not solved, perform examination with the same

procedure as that in 1) to identify the defective location.

If bit 2 of the binary representation of xx is “1”, this indicates that the

link between the master station (CNC) and the slave station was

canceled. For example, assume that the following is displayed on the

screen:

SYSTEM ALARM

950 PMC SYSTEM ALARM

PC050 IOLINK CH1

aabb-8400:aabb

xx is equal to 84, or “1000100” in binary notation. Bit 2, which is the

third bit from the right, is “1”.

In this case, check the following:

(1) Disconnection of the slave station from the power supply

Check that the slave station is not turned off, that there are no

instantaneous power failures, and that the capacity of the power

supply is enough.

(2) Disconnection of the I/O link cable

Check that the I/O link cable has not fallen off or has not been

disconnected.

(3) If the problem is not solved, perform a check with the same

procedure as that in 1).

If bit 3 or 4 of the binary representation of xx is “1”, this indicates that

a parity error occurred in the PMC control circuit on the motherboard.

In this case, replace the motherboard (main CPU board).

D Other cases

The motherboard may be defective. Replace the motherboard.

D PMC system alarm on

For sequence control on the loader control board, a PMC control circuit

the loader control board

is installed on the loader control board.

If alarm 972 is issued, indicating on the screen that a PMC system alarm

occurred on the loader, take appropriate action on the loader control

board.

Screen display example

SYSTEM ALARM

972 NMI OCCURRED IN OTHER MODULE

SLOT 01

950 PMC SYSTEM ALARM >LC

817

11. TROUBLESHOOTING

B-63525EN/02

11.34

ALARM 951

(PMC WATCHDOG

ALARM)

Causes and actions

This alarm is issued if a fault (watchdog alarm) is detected in the PMC.

A probable cause is that the MC control circuit is defective.

D Replacing the

The PMC control circuit is installed on the motherboard. Replace the

motherboard

motherboard.

D PMC watchdog alarm on

For sequence control on the loader control board, a PMC control circuit

the loader control board

is installed on the loader control board.

If alarm 972 is issued, indicating on the screen that a PMC watchdog

alarm occurred on the loader, take appropriate action on the loader control

board.

Screen display example

SYSTEM ALARM

972 NMI OCCURRED IN OTHER MODULE

SLOT 01

951 PMC WATCH DOG ALARM >LC

818

B-63525EN/02

11.TROUBLESHOOTING

11.35

ALARM 972

(NMI ALARM ON AN

OPTION BOARD)

Causes and actions

This alarm indicates that an error was detected on an option board, not on

the main CPU board.

D Screen display

If alarm 972 is issued, the following is displayed on the screen:

Screen display example

SYSTEM ALARM

972 NMI OCCURRED IN OTHER MODULE

SLOT 02

930 CPU INTERRUPT <SUB

“SLOT” indicates the number of the slot into which the option board is

inserted. Alternatively, it may indicate the number of the alarm that

occurred on the option board. Take the action related to that alarm to the

option board. In the above example, alarm 930 occurred on the sub-CPU

board.

D Slot number

The slot number of each option slot is as shown in the figure below.

D Replacing the option

Replace the option board inserted into the slot with the indicated slot

board

number.

819

11. TROUBLESHOOTING

B-63525EN/02

11.38

ALARM 975

(BUS ERROR)

Causes and actions

A bus error occurred on the motherboard. This alarm indicates that an

error occurred during the exchange of data within the motherboard.

D Replacing the CPU card

Replace the CPU card on the motherboard.

D Replacing other cards

Replace the display control card, axis control cards, and FROM/SRAM

and modules

module, one at time.

D Replacing the

Replace the motherboard.

motherboard

D BUS error on an option

If alarm 972 is issued, indicating on the screen that a BUS error occurred

board

on an option board, replace the CPU card on the option card, DRAM

module, axis control cards, and option card, one at a time.

Some option boards have a circuit equivalent to the CPU card installed

on the boards themselves. See the hardware chapter for details.

Screen display example

SYSTEM ALARM

972 NMI OCCURRED IN OTHER MODULE

SLOT 01

975 FĆBUS ERROR <SUB

824

B-63525EN/02

11.TROUBLESHOOTING

11.39

ALARM 976

(LOCAL BUS ERROR)

Causes and actions

A bus error occurred on the local bus on the motherboard.

This alarm indicates that an error occurred during the exchange of data

within the motherboard.

D Replacing the CPU card

Replace the CPU card on the motherboard (main CPU board).

D Replacing other cards

Replace the display control card, axis control cards, and FROM/SRAM

and modules

module, one at a time.

D Replacing the

Replace the motherboard.

motherboard

D Local BUS error on an

If alarm 972 is issued, indicating on the screen that a local BUS error

option board

occurred on an option board, replace the CPU card on the option card,

DRAM module, axis control cards, and option card, one at a time.

Some option boards have a circuit equivalent to the CPU card installed

on the boards themselves. See the hardware chapter for details.

Screen display example

SYSTEM ALARM

972 NMI OCCURRED IN OTHER MODULE

SLOT 01

976 LĆBUS ERROR <SUB

825

11. TROUBLESHOOTING

B-63525EN/02

For an explanation of the following servo alarms, refer to the FANUC

11.40

SERVO MOTOR αi series Maintenance Manual (B-65285EN) or

SERVO ALARMS

FANUC SERVO MOTOR α series Maintenance Manual (B-65165E).

Number

Message

Contents

417

SERVO ALARM: n-TH AXIS - PA-

This alarm occurs when the n-th axis (axis 1-8) is in one of the condi-

RAMETER INCORRECT

tions listed below. (Digital servo system alarm)

1) The value set in Parameter No. 2020 (motor form) is out of the speci-

fied limit.

2) A proper value (111 or -111) is not set in parameter No.2022 (motor

revolution direction).

3) Illegal data (a value below 0, etc.) was set in parameter No. 2023

(number of speed feedback pulses per motor revolution).

4) Illegal data (a value below 0, etc.) was set in parameter No. 2024

(number of position feedback pulses per motor revolution).

5) Parameters No. 2084 and No. 2085 (flexible field gear rate) have not

been set.

6) A value outside the limit of {1 to the number of control axes} or a non-

continuous value (Parameter 1023 (servo axis number) contains a

value out of the range from 1 to the number of axes, or an isolated

value (for example, 4 not prceded by 3).was set in parameter No.

1023 (servo axisnumber).

420

SERVO ALARM: n AXIS SYNC

During simple synchronous control, the difference between the torque

TORQUE

commands for the master and slave axes exceeded the value set in pa-

rameter No. 2031.

421

SERVO ALARM: n AXIS EXCESS

The difference between the errors in the semi-closed loop and closed

ER (D)

loop has become excessive during dual position feedback. Check the

values of the dual position conversion coefficients in parameters No.

2078 and 2079.

422

SERVO ALARM: n AXIS

In torque control of PMC axis control, a specified allowable speed

has been exceeded.

423

SERVO ALARM: n AXIS

In torque control of PMC axis control, the parameter-set allowable

cumulative travel distance has been exceeded.

430

n AXIS : SV. MOTOR OVERHEAT

A servo motor overheat occurred.

431

n AXIS : CNV. OVERLOAD

1) PSM: Overheat occurred.

2) β series SVU: Overheat occurred.

432

n AXIS : CNV. LOWVOLT CON.

1) PSM: The control power supply voltage has dropped.

2) PSMR: The control power supply voltage has dropped.

3) β series SVU: The control power supply voltage has dropped.

433

n AXIS : CNV. LOWVOLT DC LINK

1) PSM: The DC link voltage has dropped.

2) PSMR: The DC link voltage has dropped.

3) α series SVU: The DC link voltage has dropped.

4) β series SVU: The DC link voltage has dropped.

434

n AXIS : INV. LOWVOLT CONTROL

SVM: The control power supply voltage has dropped.

435

n AXIS : INV. LOWVOLT DC LINK

SVM: The DC link voltage has dropped.

436

n AXIS : SOFTTHERMAL (OVC)

The digital servo software detected the soft thermal state (OVC).

437

n AXIS : CNV. OVERCURRENT

PSM: Overcurrent flowed into the input circuit.

POWER

438

n AXIS : INV. ABNORMAL CUR-

1) SVM: The motor current is too high.

RENT

2) α series SVU: The motor current is too high.

3) β series SVU: The motor current is too high.

826

B-63525EN/02

11.TROUBLESHOOTING

Number

Message

Contents

439

n AXIS : CNV. OVERVOLT POWER

1) PSM: The DC link voltage is too high.

2) PSMR: The DC link voltage is too high.

3) α series SVU: The C link voltage is too high.

4) β series SVU: The link voltage is too high.

440

n AXIS : CNV. EX DECELERATION

1) PSMR: The regenerative discharge amount is too large.

POW.

2) α series SVU: The regenerative discharge amount is too large. Al-

ternatively, the regenerative discharge circuit is abnormal.

441

n AXIS : ABNORMAL CURRENT

The digital servo software detected an abnormality in the motor cur-

OFFSET

rent detection circuit.

442

n AXIS : CNV. CHARGE FAULT

1) PSM: The spare discharge circuit of the DC link is abnormal.

2) PSMR: The spare discharge circuit of the DC link is abnormal.

443

n AXIS : CNV. COOLING FAN FAIL-

1) PSM: The internal stirring fan failed.

URE

2) PSMR: The internal stirring fan failed.

3) β series SVU: The internal stirring fan failed.

444

n AXIS : INV. COOLING FAN FAIL-

SVM: The internal stirring fan failed.

URE

445

n AXIS : SOFT DISCONNECT

The digital servo software detected a broken wire in the pulse coder.

ALARM

446

n AXIS : HARD DISCONNECT

A broken wire in the built-in pulse coder was detected by hardware.

ALARM

447

n AXIS : HARD DISCONNECT (EXT)

A broken wire in the separate detector was detected by hardware.

448

n AXIS : UNMATCHED FEEDBACK

The sign of feedback data from the built-in pulse coder differs from

ALARM

that of feedback data from the separate detector.

449

n AXIS : INV. IPM ALARM

1) SVM: IPM (intelligent power module) detected an alarm.

2) α series SVU: IPM (intelligent power module) detected an alarm.

453

n AXIS : SPC SOFT DISCONNECT

Software disconnection alarm of the α pulse coder.

ALARM

Turn off the power to the CNC, then remove and insert the pulse cod-

er cable. If this alarm is issued again, replace the pulse coder.

456

ILLEGAL CURRENT LOOP

The current control cycle settings (parameter No. 2004, bit 0 of pa-

rameter No. 2003, and bit 0 of parameter No. 2013) are incorrect.

Possible problems are as follows.

- For the two axes whose servo axis numbers (settings of parameter

No. 1023) are an odd number followed by an even number (a pair

of axes 1 and 2 or axes 5 and 6, for example), a different current con-

trol cycle is set for each of the axes.

- The requirements for slaves needed for the set current control cycle,

including the number, type, and connection method of them, are not

satisfied.

457

ILLEGAL HI HRV (250US)

Use of high-speed HRV is specified although the current control

cycle is 200 ms.

458

CURRENT LOOP ERROR

The current control cycle setting does not match the actual current

control cycle.

459

HI HRV SETTING ERROR

For the two axes whose servo axis numbers (settings of parameter

No. 1023) are an odd number followed by an even number (a pair of

axes 1 and 2 or axes 5 and 6, for example), the SVM for one of the

axes supports high-speed HRV control but the SVM for the other

does not. Refer to the SVM specification.

827

11. TROUBLESHOOTING

B-63525EN/02

Number

Message

Contents

460

n AXIS : FSSB DISCONNECT

FSSB communication was disconnected suddenly. The possible

causes are as follows:

1) The FSSB communication cable was disconnected or broken.

2) The power to the amplifier was turned off suddenly.

3) A low-voltage alarm was issued by the amplifier.

461

n AXIS : ILLEGAL AMP INTERFACE

The axes of the 2-axis amplifier were assigned to the fast type inter-

face.

462

n AXIS : SEND CNC DATA FAILED

Because of an FSSB communication error, a slave could not receive

correct data.

463

n AXIS : SEND SLAVE DATA

Because of an FSSB communication error, the servo system could

FAILED

not receive correct data.

464

n AXIS : WRITE ID DATA FAILED

An attempt was made to write maintenance information on the ampli-

fier maintenance screen, but it failed.

465

n AXIS : READ ID DATA FAILED

At power-up, amplifier initial ID information could not be read.

466

n AXIS : MOTOR/AMP COMBINA-

The maximum current rating for the amplifier does not match that for

TION

the motor.

467

n AXIS : ILLEGAL SETTING OF

The servo function for the following has not been enabled when an

AXIS

axis occupying a single DSP (corresponding to two ordinary axes) is

specified on the axis setting screen.

1. Learning control (bit 5 of parameter No. 2008 = 1)

2. High-speed current loop (bit 0 of parameter No. 2004 = 1)

3. High-speed interface axis (bit 4 of parameter No. 2005 = 1)

468

HI HRV SETTING ERROR (AMP)

Use of high-speed HRV is specified for a controlled axis of an ampli-

fier which does not support high-speed HRV.

600

n AXIS : INV. DC LINK OVER CUR-

DC link current is too large.

RENT

601

n AXIS : INV. RADIATOR FAN FAIL-

The external dissipator stirring fan failed.

URE

602

n AXIS : INV. OVERHEAT

The servo amplifier was overheated.

603

n AXIS : INV. IPM ALARM (OH)

The IPM (intelligent power module) detected an overheat alarm.

604

n AXIS : AMP. COMMUNICATION

Communication between the SVM and the PSM failed.

ERROR

605

n AXIS : CNV. EX. DISCHARGE

PSMR: Regenerative power is too large.

POW.

606

n AXIS : CNV. RADIATOR FAN FAIL-

PSM: The external dissipator stirring fan failed.

URE

PSMR: The external dissipator stirring fan failed.

607

n AXIS : CNV. SINGLE PHASE FAIL-

PSM: Input voltage is in the open-phase condition.

URE

PSMR: Input voltage is in the open-phase condition.

If the hardware on the CNC is suspected to be defective as a result of

examination, replace the axis control cards.

828

B-63525EN/02

11.TROUBLESHOOTING

For an explanation of the following SPC alarms (serial pulse coder

11.41

alarms), refer to the FANUC SERVO MOTOR αi series Maintenance

SPC ALARMS

Manual

(B-65285EN) or FANUC SERVO MOTOR α series

Maintenance Manual (B-65165E).

Number

Message

Contents

360

n AXIS: ABNORMAL CHECKSUM (INT)

A checksum error occurred in the built-in pulse coder.

361

n AXIS: ABNORMAL PHASE DATA (INT)

A phase data error occurred in the built-in pulse coder.

364

n AXIS: SOFT PHASE ALARM (INT)

The digital servo software detected invalid data in the built-in

pulse coder.

365

n AXIS: BROKEN LED (INT)

An LED error occurred in the built-in pulse coder.

366

n AXIS: PULSE MISS (INT)

A pulse error occurred in the built-in pulse coder.

367

n AXIS: COUNT MISS (INT)

A count error occurred in the built-in pulse coder.

368

n AXIS: SERIAL DATA ERROR (INT)

Communication data from the built-in pulse coder cannot be

received.

369

n AXIS: DATA TRANS. ERROR (INT)

A CRC or stop bit error occurred in the communication data

being received from the built-in pulse coder.

380

n AXIS: BROKEN LED (EXT)

An LED error occured in the separate detector.

381

n AXIS: ABNORMAL PHASE

A phase data error occurred in the separate linear scale.

(EXT LIN)

382

n AXIS: COUNT MISS (EXT)

A pulse error occurred in the separate detector.

383

n AXIS: PULSE MISS (EXT)

A count error occurred in the separate detector.

384

n AXIS: SOFT PHASE ALARM (EXT)

The digital servo software detected invalid data in the separate

detector.

385

n AXIS: SERIAL DATA ERROR (EXT)

Communication data from the separate detector cannot be

received.

386

n AXIS: DATA TRANS. ERROR (EXT)

A CRC or stop bit error occurred in the communication data

being received from the separate detector.

387

n AXIS: ABNORMAL ENCODER

An error occurs in the separate detector. For details, contact

(EXT)

the manufacturer of the scale.

831

A. ALARM LIST

APPENDIX

B-63525EN/02

A.1

LIST OF ALARM

CODES (CNC)

(1) Program errors /Alarms on program and operation (P/S alarm)

Number

Message

Contents

000

PLEASE TURN OFF POWER

A parameter which requires the power off was input, turn off power.

001

TH PARITY ALARM

TH alarm (A character with incorrect parity was input).

Correct the tape.

002

TV PARITY ALARM

TV alarm (The number of characters in a block is odd). This alarm will

be generated only when the TV check is effective.

003

TOO MANY DIGITS

Data exceeding the maximum allowable number of digits was input.

(Refer to the item of max. programmable dimensions.)

004

ADDRESS NOT FOUND

A numeral or the sign “ - ” was input without an address at the beginning

of a block. Modify the program .

005

NO DATA AFTER ADDRESS

The address was not followed by the appropriate data but was followed

by another address or EOB code. Modify the program.

006

ILLEGAL USE OF NEGATIVE SIGN

Sign “ - ” input error (Sign “ - ” was input after an address with which it

cannot be used. Or two or more “ - ” signs were input.)

Modify the program.

007

ILLEGAL USE OF DECIMAL POINT

Decimal point “ . ” input error (A decimal point was input after an address

with which it can not be used. Or two decimal points were input.)

Modify the program.

009

ILLEGAL ADDRESS INPUT

Unusable character was input in significant area.

Modify the program.

010

IMPROPER G-CODE

An unusable G code or G code corresponding to the function not pro-

vided is specified. Modify the program.

011

NO FEEDRATE COMMANDED

Feedrate was not commanded to a cutting feed or the feedrate was in-

adequate. Modify the program.

CAN NOT COMMAND G95

A synchronous feed is specified without the option for threading / syn-

(M series)

chronous feed.

ILLEGAL LEAD COMMAND

In variable lead threading, the lead incremental and decremental out-

014

(T series)

putted by address K exceed the maximum command value or a com-

mand such that the lead becomes a negative value is given.

Modify the program.

TOO MANY AXES COMMANDED

An attempt was made to move the machine along the axes, but the num-

(M series)

ber of the axes exceeded the specified number of axes controlled simul-

taneously. Modify the program.

TOO MANY AXES COMMANDED

An attempt has been made to move the tool along more than the maxi-

(T series)

mum number of simultaneously controlled axes. Alternatively, no axis

015

movement command or an axis movement command for two or more

axes has been specified in the block containing the command for skip

using the torque limit signal (G31 P99/98). The command must be ac-

companied with an axis movement command for a single axis, in the

same block.

020

OVER TOLERANCE OF RADIUS

In circular interpolation (G02 or G03), difference of the distance between

the start point and the center of an arc and that between the end point

and the center of the arc exceeded the value specified in parameter No.

3410.

021

ILLEGAL PLANE AXIS COMMAN-

An axis not included in the selected plane (by using G17, G18, G19) was

DED

commanded in circular interpolation. Modify the program.

022

NO CIRCLE RADIUS

The command for circular interpolation lacks arc radius R or coordinate

I, J, or K of the distance between the start point to the center of the arc.

836

B-63525EN/02

APPENDIX

A. ALARM LIST

Number

Message

Contents

023

ILLEGAL RADIUS COMMAND

In circular interpolation by radius designation, negative value was com-

(T series)

manded for address R. Modify the program.

025

CANNOT COMMAND F0 IN G02/G03

F0 (fast feed) was instructed by F1 -digit column feed in circular inter-

(M series)

polation. Modify the program.

027

NO AXES COMMANDED IN

No axis is specified in G43 and G44 blocks for the tool length offset type

G43/G44 (M series)

Offset is not canceled but another axis is offset for the tool length offset

type C. Modify the program.

028

ILLEGAL PLANE SELECT

In the plane selection command, two or more axes in the same direction

are commanded.

Modify the program.

ILLEGAL OFFSET VALUE

The offset values specified by H code is too large.

(M series)

Modify the program.

029

ILLEGAL OFFSET VALUE

The offset values specified by T code is too large.

(T series)

Modify the program.

ILLEGAL OFFSET NUMBER

The offset number specified by D/H code for tool length offset, cutter

(M series)

compensation, or three-dimensional tool offset is too large. Alternative-

ly, the number of an additional workpiece coordinate system specified

030

with the P code is too large. Modify the program.

ILLEGAL OFFSET NUMBER

The offset number in T function specified for tool offset is tool large.

(T series)

Modify the program.

031

ILLEGAL P COMMAND IN G10

In setting an offset amount by G10, the offset number following address

P was excessive or it was not specified.

Modify the program.

032

ILLEGAL OFFSET VALUE IN G10

In setting an offset amount by G10 or in writing an offset amount by sys-

tem variables, the offset amount was excessive.

NO SOLUTION AT CRC

A point of intersection cannot be determined for cutter compensation.

(M series)

Modify the program.

033

NO SOLUTION AT CRC

A point of intersection cannot be determined for tool nose radius com-

(T series)

pensation. Modify the program.

NO CIRC ALLOWED IN ST-UP /EXT

The start up or cancel was going to be performed in the G02 or G03

BLK (M series)

mode in cutter compensation C. Modify the program.

034

NO CIRC ALLOWED IN ST-UP /EXT

The start up or cancel was going to be performed in the G02 or G03

BLK (T series)

mode in tool nose radius compensation. Modify the program.

CAN NOT COMMANDED G39

G39 is commanded in cutter compensation B cancel mode or on the

(M series)

plane other than offset plane. Modify the program.

035

CAN NOT COMMANDED G31

Skip cutting (G31) was specified in tool nose radius compensation

(T series)

mode. Modify the program.

036

CAN NOT COMMANDED G31

Skip cutting (G31) was specified in cutter compensation mode.

(M series)

Modify the program.

CAN NOT CHANGE PLANE IN CRC

G40 is commanded on the plane other than offset plane in cutter com-

(M seires)

pensation B. The plane selected by using G17, G18 or G19 is changed

037

in cutter compensation C mode. Modify the program.

CAN NOT CHANGE PLANE IN NRC

The offset plane is switched in tool nose radius compensation.

(T seires)

Modify the program.

INTERFERENCE IN CIRCULAR

Overcutting will occur in cutter compensation C because the arc start

BLOCK (M seires)

point or end point coincides with the arc center.

Modify the program.

038

INTERFERENCE IN CIRCULAR

Overcutting will occur in tool nose radius compensation because the arc

BLOCK (T series)

start point or end point coincides with the arc center.

Modify the program.

837

A. ALARM LIST

APPENDIX

B-63525EN/02

Number

Message

Contents

039

CHF/CNR NOT ALLOWED IN NRC

Chamfering or corner R was specified with a start-up, a cancel, or

(T series)

switching between G41 and G42 in tool nose radius compensation. The

program may cause overcutting to occur in chamfering or corner R.

Modify the program.

040

INTERFERENCE IN G90/G94

Overcutting will occur in tool nose radius compensation in canned cycle

BLOCK (T series)

G90 or G94. Modify the program.

INTERFERENCE IN CRC

Overcutting will occur in cutter compensation C. Two or more blocks are

(M seires)

consecutively specified in which functions such as the auxiliary function

and dwell functions are performed without movement in the cutter com-

041

pensation mode. Modify the program.

INTERFERENCE IN NRC

Overcutting will occur in tool nose radius compensation.

(T seires)

Modify the program.

042

G45/G48 NOT ALLOWED IN CRC

Tool offset (G45 to G48) is commanded in cutter compensation. Modify

(M series)

the program.

044

G27-G30 NOT ALLOWED IN FIXED

One of G27 to G30 is commanded in canned cycle mode.

CYC (M series)

Modify the program.

045

ADDRESS Q NOT FOUND

In canned cycle G73/G83, the depth of each cut (Q) is not specified. Al-

(G73/G83) (M series)

ternatively, Q0 is specified. Correct the program.

046

ILLEGAL REFERENCE RETURN

Other than P2, P3 and P4 are commanded for 2nd, 3rd and 4th refer-

COMMAND

ence position return command.

047

ILLEGAL AXIS SELECT

Two or more parallel axes (in parallel with a basic axis) have been speci-

fied upon start-up of three-dimensional tool compensation or three-di-

mensional coordinate conversion.

048

BASIC 3 AXIS NOT FOUND

Start-up of three-dimensional tool compensation or three-dimensional

coordinate conversion has been attempted, but the three basic axes

used when Xp, Yp, or Zp is omitted are not set in parameter No. 1022.

049

ILLEGAL OPERATION (G68/G69)

The commands for three-dimensional coordinate conversion (G68,

(M series)

G69) and tool length compensation (G43, G44, G45) are not nested.

Modify the program.

050

CHF/CNR NOT ALLOWED IN THRD

Optional chamfering or corner R is commanded in the thread cutting

BLK (M series)

block.

Modify the program.

CHF/CNR NOT ALLOWED IN THRD

Chamfering or corner R is commanded in the thread cutting block.

BLK(T series)

Modify the program.

051

MISSING MOVE AFTER CHF/CNR

Improper movement or the move distance was specified in the block

(M series)

next to the optional chamfering or corner R block.

Modify the program.

MISSING MOVE AFTER CHF/CNR

Improper movement or the move distance was specified in the block

(T series)

next to the chamfering or corner R block.

Modify the program.

CODE IS NOT G01 AFTER CHF/CNR

The block next to the chamfering or corner R block is not G01,G02 or

(M series)

G03.

Modify the program.

052

CODE IS NOT G01 AFTER CHF/CNR

The block next to the chamfering or corner R block is not G01.

(T series)

Modify the program.

TOO MANY ADDRESS COMMANDS

For systems without the arbitary angle chamfering or corner R cutting,

(M series)

a comma was specified. For systems with this feature, a comma was fol-

lowed by something other than R or C Correct the program.

053

TOO MANY ADDRESS COMMANDS

In the chamfering and corner R commands, two or more of I, K and R

(T seires)

are specified. Otherwise, the character after a comma(“,”) is not C or R

in direct drawing dimensions programming. Modify the program.

NO TAPER ALLOWED AFTER CHF/

A block in which chamfering in the specified angle or the corner R was

054

CNR (T series)

specified includes a taper command. Modify the program.

838

B-63525EN/02

APPENDIX

A. ALARM LIST

Number

Message

Contents

MISSING MOVE VALUE IN CHF/CNR

In the arbitrary angle chamfering or corner R block, the move distance

(M series)

is less than chamfer or corner R amount.

055

MISSING MOVE VALUE IN CHF/CNR

In chamfering or corner R block, the move distance is less than chamfer

(T series)

or corner R amount.

056

NO END POINT & ANGLE IN CHF/

Neither the end point nor angle is specified in the command for the block

CNR (T series)

next to that for which only the angle is specified (A). In the chamfering

comman, I(K) is commanded for the X(Z) axis.

057

NO SOLUTION OF BLOCK END

Block end point is not calculated correctly in direct dimension drawing

(T series)

programming.

END POINT NOT FOUND

In a arbitrary angle chamfering or corner R cutting block, a specified axis

(M series)

is not in the selected plane. Correct the program.

058

END POINT NOT FOUND

Block end point is not found in direct dimension drawing programming.

(T series)

059

PROGRAM NUMBER NOT FOUND

In an external program number search, a specified program number

was not found. Otherwise, a program specified for searching is being

edited in background processing. Alternatively, the program with the

program number specified in a one-touch macro call is not found in

memory. Check the program number and external signal. Or discontin-

ue the background eiting.

060

SEQUENCE NUMBER NOT FOUND

Commanded sequence number was not found in the sequence number

search. Check the sequence number.

061

ADDRESS P/Q NOT FOUND IN

Address P or Q is not specified in G70, G71, G72, or G73 command.

G70-G73 (T series)

Modify the program.

062

ILLEGAL COMMAND IN G71-G76

1. The depth of cut in G71 or G72 is zero or negative value.

(T series)

2. The repetitive count in G73 is zero or negative value.

3. the negative value is specified to ∆i or ∆k is zero in G74 or G75.

4. A value other than zero is specified to address U or W though ∆i or

∆k is zero in G74 or G75.

5. A negative value is specified to ∆d, thoughthe relief direction in G74

or G75 is determined.

6. Zero or a negative value is specified to the height of thread or depth

of cut of first time in G76.

7. The specified minimum depth of cut in G76 is greater than the height

of thread.

8. An unusable angle of tool tip is specified in G76.

Modify the program.

063

SEQUENCE NUMBER NOT FOUND

The sequence number specified by address P in G70, G71, G72, or G73

(T series)

command cannot be searched. Modify the program.

064

SHAPE PROGRAM NOT MONOTO-

A target shape which cannot be made by monotonic machining was

NOUSLY (T series)

specified in a repetitive canned cycle (G71 or G72).

065

ILLEGAL COMMAND IN G71-G73

1. G00 or G01 is not commanded at the block with the sequence num-

(T series)

ber which is specified by address P in G71, G72, or G73 command.

2. Address Z(W) or X(U) was commanded in the block with a sequence

number which is specified by address P in G71 or G72, respectively.

Modify the program.

066

IMPROPER G-CODE IN G71-G73

An unallowable G code was commanded beween two blocks specified

(T series)

by address P in G71, G72, or G73. Modify the program.

067

CAN NOT ERROR IN MDI MODE

G70, G71, G72, or G73 command with address P and Q.

(T series)

Modify the program.

839

A. ALARM LIST

APPENDIX

B-63525EN/02

Number

Message

Contents

069

FORMAT ERROR IN G70-G73

The final move command in the blocks specified by P and Q of G70,

(T series)

G71, G72, and G73 ended with chamfering or corner R.

Modify the program.

070

NO PROGRAM SPACE IN MEMORY

The memory area is insufficient.

Delete any unnecessary programs, then retry.

071

DATA NOT FOUND

The address to be searched was not found. Or the program with speci-

fied program number was not found in program number search.

Check the data.

072

TOO MANY PROGRAMS

The number of programs to be stored exceeded 63 (basic), 125 (option),

200 (option), 400 (option) or 1000 (option). Delete unnecessary pro-

grams and execute program registeration again.

073

PROGRAM NUMBER ALREADY IN

The commanded program number has already been used.

USE

Change the program number or delete unnecessary programs and

execute program registeration again.

074

ILLEGAL PROGRAM NUMBER

The program number is other than 1 to 9999.

Modify the program number.

075

PROTECT

An attempt was made to register a program whose number was pro-

tected.

076

ADDRESS P NOT DEFINED

Address P (program number) was not commanded in the block which

includes an M98, G65, or G66 command. Modify the program.

077

SUB PROGRAM NESTING ERROR

The subprogram was called in five folds. Modify the program.

078

NUMBER NOT FOUND

A program number or a sequence number which was specified by ad-

dress P in the block which includes an M98, M99, M65 or G66 was not

found. The sequence number specified by a GOTO statement was not

found. Otherwise, a called program is being edited in background pro-

cessing. Correct the program, or discontinue the background editing.

079

PROGRAM VERIFY ERROR

In memory or program collation,a program in memory does not agree

with that read from an external I/O device. Check both the programs in

memory and those from the external device.

G37 ARRIVAL SIGNAL NOT

In the automatic tool length measurement function (G37), the measure-

ASSERTED

ment position reach signal (XAE, YAE, or ZAE) is not turned on within

(M series)

an area specified in parameter 6254 6255 (value ε).

This is due to a setting or operator error.

080

G37 ARRIVAL SIGNAL NOT

In the automatic tool compensation function (G36, G37), the measure-

ASSERTED

ment position reach signal (XAE or ZAE) is not turned on within an area

(T series)

specified in parameter 6254 (value ε).

This is due to a setting or operator error.

OFFSET NUMBER NOT FOUND IN

Tool length automatic measurement (G37) was specified without a H

G37

code. (Automatic tool length measurement function) Modify the pro-

(M series)

gram.

081

OFFSET NUMBER NOT FOUND IN

Automatic tool compensation (G36, G37) was specified without a T

G37 (T series)

code. (Automatic tool compensation function) Modify the program.

H-CODE NOT ALLOWED IN G37

H code and automatic tool compensation (G37) were specified in the

(M series)

same block. (Automatic tool length measurement function) Modify the

program.

082

T-CODE NOT ALLOWED IN G37

T code and automatic tool compensation (G36, G37) were specified in

(T series)

the same block. (Automatic tool compensation function)

Modify the program.

ILLEGAL AXIS COMMAND IN G37

In automatic tool length measurement, an invalid axis was specified or

(M series)

the command is incremental. Modify the program.

083

ILLEGAL AXIS COMMAND IN G37

In automatic tool compensation (G36, G37), an invalid axis was speci-

(T series)

fied or the command is incremental. Modify the program.

840

B-63525EN/02

APPENDIX

A. ALARM LIST

Number

Message

Contents

085

COMMUNICATION ERROR

When entering data in the memory by using Reader / Puncher interface,

an overrun, parity or framing error was generated. The number of bits

of input data or setting of baud rate or specification No. of I/O unit is in-

correct.

086

DR SIGNAL OFF

When entering data in the memory by using Reader / Puncher interface,

the ready signal (DR) of reader / puncher was turned off.

Power supply of I/O unit is off or cable is not connected or a P.C.B. is de-

fective.

087

BUFFER OVERFLOW

When entering data in the memory by using Reader / Puncher interface,

though the read terminate command is specified, input is not interrupted

after 10 characters read. I/O unit or P.C.B. is defective.

088

LAN FILE TRANS ERROR

File data transfer via OSI-ETHERNET has been stopped due to a trans-

(CHANNEL-1)

fer error.

089

LAN FILE TRANS ERROR

File data transfer via OSI-ETHERNET has been stopped due to a trans-

(CHANNEL-2)

fer error.

090

REFERENCE RETURN

1. The reference position return cannot be performed normally be-

INCOMPLETE

cause the reference position return start point is too close to the ref-

erence position or the speed is too slow. Separate the start point far

enough from the reference position, or specify a sufficiently fast

speed for reference position return.

2. During reference position return with the absolute-position detector,

if this alarm occurs even though condition 1 is satisfied, do the fol-

lowing:

After turning the servo motor for the axis at least one turn, turn the

power off and then on again. Then perform reference position re-

turn.

091

REFERENCE RETURN

Manual reference position return cannot be performed when automatic

INCOMPLETE

operation is halted.

092

AXES NOT ON THE REFERENCE

The commanded axis by G27 (Reference position return check) did not

POINT

return to the reference position.

094

P TYPE NOT ALLOWED

P type cannot be specified when the program is restarted. (After the au-

(COORD CHG)

tomatic operation was interrupted, the coordinate system setting opera-

tion was performed.)

Perform the correct operation according to th operator’s manual.

095

P TYPE NOT ALLOWED

P type cannot be specified when the program is restarted.

(After the

(EXT OFS CHG)

automatic operation was interrupted, the external workpiece offset

amount changed.)

Perform the correct operation according to th operator’s manual.

096

P TYPE NOT ALLOWED

P type cannot be specified when the program is restarted. (After the au-

(WRK OFS CHG)

tomatic operation was interrupted, the workpiece offset amount

changed.)

Perform the correct operation according to the operator’s manual.

097

P TYPE NOT ALLOWED

P type cannot be directed when the program is restarted. (After power

(AUTO EXEC)

ON, after emergency stop or P / S 94 to 97 reset, no automatic operation

is performed.) Perform automatic operation.

098

G28 FOUND IN SEQUENCE

A command of the program restart was specified without the reference

RETURN

position return operation after power ON or emergency stop, and G28

was found during search.

Perform the reference position return.

099

MDI EXEC NOT ALLOWED

After completion of search in program restart, a move command is given

AFT. SEARCH

with MDI. Move axis before a move command or don’t interrupt MDI op-

eration.

100

PARAMETER WRITE ENABLE

On the PARAMETER(SETTING) screen, PWE(parameter writing en-

abled) is set to 1. Set it to 0, then reset the system.

841

FANUC Series 16i/160i/160is-MODEL B, Series 18i/180i/180is-MODEL B, Series 21i/210i/210is-MODEL B. MAINTENANCE MANAUL - page 29