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FANUC Series 0i-MODEL D, FANUC Series 0i Mate-MODEL D. MAINTENANCE MANUAL - page 15

10.TROUBLESHOOTING

B-64305EN/03

SYS_ALM134 FSSB LINE DATA ERROR

134: A data error occurred on the FSSB line and the nth

(AMPn) > .. > MAIN /LINE1

servo amplifier received abnormal data.

SYS_ALM135 FSSB LINE DATA ERROR

135: A data error occurred on the FSSB line and the nth

(PULSE MODULEn) > .. > MAIN /LINE1

separate detector interface unit received abnormal data.

Replace the relevant servo amplifier or separate detector

interface unit. If the machine does not recover from the

error after replacement, also replace the slave preceding

the relevant slave. If the error still occurs, replace the

servo card.

SYS_ALM136 FSSB SEND SLAVE DATA FAILED

136 : The correct data could not be received in the servo

(AMPn -> MAIN)

software because of an FSSB communication error.

SYS_ALM137 FSSB SEND CNC DATA FAILED

137 : The correct data could not be received on a slave

(AMPn <- MAIN)

side because of an FSSB communication error.

Replace the relevant servo amplifier or separate detector

interface unit. If the machine does not recover from the

error after replacement, also replace the slave preceding

the relevant slave. If the error still occurs, replace the

servo card.

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

(SYS_ALM197)

If system alarm 197 is issued, the cause may be an error related to the PMC or I/O Link. Possible causes

include an I/O link communication error and a fault in the PMC control circuit.

For details, see alarm number "PCxxx" on line 3 of the system alarm screen and then the PC alarm

number table later.

D4F1 ｰ 01.0

SYS_ALM197 EMBEDDED SOFTWARE SYSTEM ERROR

PC050 IOLINK ER1 CH1:GR00:03

2008/06/06 14:06:06

PROGRAM COUNTER

: 1000EF2CH

ACT TASK

: 10000001H

ACCESS ADDRESS

:

-

Check this number.

ACCESS DATA

:

-

ACCESS OPERATION :

-

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

+ THE SYSTEM ALARM HAS OCCURRED, THE SYSTEM HAS STOPPED.

+

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

PAGE UP OR DOWN (PAGE

1/8)

Page 1 of the system alarm screen

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B-64305EN/03

10.TROUBLESHOOTING

D4F1 ｰ 1.0

SYS_ALM197 EMBEDDED SOFTWARE SYSTEM ERROR

CPU CARD

2008/04/21 21:26:52

EMBEDDED SOFTWARE SYSTEM ERROR:(40B0-0001)

PCxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx

Check this number.

PAGE UP OR DOWN (PAGE

2/8)

Page 2 of the system alarm screen

Alarm number

Contents

Faulty location/corrective action

PC004 CPU ERR xxxxxxxx:yyyyyyyy

A CPU error occurred in the

This alarm may be due to a

PC006 CPU ERR xxxxxxxx:yyyyyyyy

PMC system.

software/hardware fault; contact us with

PC009 CPU ERR xxxxxxxx:yyyyyyyy

xxxxxxxx and yyyyyyyy are

information on the circumstances under

PC010 CPU ERR xxxxxxxx:yyyyyyyy

internal error codes.

which the alarm occurred (displayed

PC012 CPU ERR xxxxxxxx:yyyyyyyy

message, system configuration, operation

suspected of causing the alarm, timing of

alarm occurrence, frequency of

occurrence, etc.) as well as the displayed

internal error codes.

PC030 RAM PARI xxxxxxxx:yyyyyyyy

A RAM parity error occurred in

This alarm may be due to a hardware fault;

the PMC system.

contact us with information on the

xxxxxxxx and yyyyyyyy are

circumstances under which the alarm

internal error codes.

occurred (displayed message, system

configuration, operation suspected of

causing the alarm, timing of alarm

occurrence, frequency of occurrence, etc.)

as well as the displayed internal error

codes.

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10.TROUBLESHOOTING

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Alarm number

Contents

Faulty location/corrective action

PC050 IOLINK ER1 CHz:GRyy:xx

A communication error

(1) Check whether instantaneous power

occurred in I/O Link.

interruption or changes in voltage

The symbol z indicates a

occurred in the slave unit of group

channel number (1 to 3).

number yy (0 to 15) connected to the

The symbol yy indicates the

I/O link line of channel number z (1 to

group number (0 to 15) of the

3).

slave unit in which a problem

(2) Check whether there is no failure or no

may be caused.

poor contact on the cable between

The symbol xx indicates an

JD1A of group number yy-1 (0 to 15)

internal error code.

and JD1B of group number yy (0 to 15),

This alarm is issued if

which are connected to the I/O link line

communication with the slave

of channel number z (1 to 3).

unit of channel number z and

(3) Check whether the slave unit of group

group number yy is interrupted.

number yy (0 to 15) connected to the

The interruption may be

I/O Link line of channel number z (1 to

caused by:

3) is not defective.

(1) Instantaneous power

interruption, a change in

voltage, or a defective

power cable in the slave

unit

(2) Defective communication

cable or poor contact

(3) Failure in the slave unit

Group number yy indicated in

this alarm may be incorrect

depending on the state in

which the alarm occurred, so

the defective position may not

always be identified.

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10.TROUBLESHOOTING

Alarm number

Contents

Faulty location/corrective action

PC051 IOLINK ER2 CHz:yy:xx:ww:vv

A communication error

(1)

When using the I/O Unit-MODEL A,

occurred in I/O Link.

even though the base expansion has

A communication error

been allocated, no base is not

occurred on channel z of I/O

connected. Check whether the units

Link.

actually connected follow the I/O Link

Symbol z indicates a channel

allocation.

number (1 to 3).

(2)

When the Power Mate or Servo Motor

Symbols yy, xx, ww, and vv

b series I/O Link option was connected

are internal error codes.

as an I/O slave unit, check whether a

This alarm is issued by various

system alarm occurred first in any of

factors related to I/O Link.

these units.

The cause of the

(3)

Check whether noise is generated on

communication error needs to

the communication line. Check the

be considered in view of this

grounding state of I/O Link slave units

message and other situations.

and the shielding state of connected

Therefore, please notify

cables.

FANUC of the situation in

(4)

Check whether the DO output of I/O

which the error occurred (such

units is not short-circuited.

as the displayed message,

(5)

Check whether instantaneous power

system configuration,

interruption or changes in voltage

operation, occurrence timing,

occurred in the power for I/O Link

and frequency of occurrence)

master and slave units.

and the internal error code

(6)

Check that there is no failure in cable

displayed.

connection.

(7)

Check that there is no defect in

cables.

(8)

Check that the ground terminals of I/O

units and the shield wires of

communication cables are properly

grounded.

(9)

Replace the I/O Link slave units.

(10) Replace the PMC module.]

(For information on noise and grounding,

refer to the antinoise measure chapter in

the Connection Manual (Hardware)

(B-64303EN).

PC060 BUS xxxxxxxx:yyyyyyyy

A bus error occurred in the

This alarm may be due to a

PMC system.

software/hardware fault; contact us with

information on the circumstances under

which the alarm occurred (displayed

message, system configuration, operation

suspected of causing the alarm, timing of

alarm occurrence, frequency of

occurrence, etc.) as well as the displayed

internal error codes.

PC070 LADDER SPE (PMCn)

A stack error occurred with the

Check the correspondence between the

SPE functional instruction of

CALL or CALLU instruction and the SPE

the ladder program of n path.

instruction.

PC097 LADDER PARITY

A RAM check error occurred.

This alarm may be due to a hardware fault;

ERR(PMCn)

contact us with information on the

PC098 CODE PARITY ERR

circumstances under which the alarm

occurred (displayed message, system

configuration, operation suspected of

causing the alarm, timing of alarm

occurrence, frequency of occurrence, etc.).

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10.TROUBLESHOOTING

B-64305EN/03

Alarm number

Contents

Faulty location/corrective action

PC501 NC/PMC INTERFACE ERR

The read or write operation

Contact us with information on the

PATHn

between CNC and PMC failed.

circumstances under which the alarm

occurred (displayed message, system

configuration, operation suspected of

causing the alarm, timing of alarm

occurrence, frequency of occurrence, etc.).

PC502 LADDER SUBaaa (PMCn)

The sequence program uses

Correct the sequence program so that the

the SUBaaa functional

SUBaaa functional instruction will not be

instruction that is not supported

used.

in PMCn.

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

B-64305EN/03

11.1 LIST OF MANUALS RELATED TO MOTORS AND

AMPLIFIERS

Details of individual motors and amplifiers are described in the manuals listed in the table below. Before

performing periodic inspection or any other maintenance work, consult with the machine tool builder and,

if necessary, obtain the latest version of the corresponding manual shown in the list. The information

about the specifications of each device, such as the weight and winding resistance value, is given in the

relevant "DESCRIPTIONS" manual.

Specification

Manual name

Type of manual

number

FANUC AC SERVO MOTOR αi series

DESCRIPTIONS

B-65262EN

FANUC AC SERVO MOTOR βis series

DESCRIPTIONS

B-65302EN

FANUC SYNCHROUNOUS BUILT-IN SERVO MOTOR DiS series

DESCRIPTIONS

B-65332EN

FANUC LINEAR MOTOR LiS series

DESCRIPTIONS

B-65382EN

FANUC AC SPINDLE MOTOR αi series

DESCRIPTIONS

B-65272EN

FANUC AC SPINDLE MOTOR βi series

DESCRIPTIONS

B-65312EN

FANUC BUILT-IN SPINDLE MOTOR BiI series

DESCRIPTIONS

B-65292EN

FANUC SYNCHROUNOUS BUILT-IN SPINDLE MOTOR BiS

DESCRIPTIONS

B-65342EN

series

FANUC - NSK SPINDLE UNIT series

DESCRIPTIONS

B-65352EN

FANUC SERVO AMPLIFIER αi series

DESCRIPTIONS

B-65282EN

FANUC SERVO AMPLIFIER βi series

DESCRIPTIONS

B-65322EN

FANUC AC SERVO MOTOR αi series

FANUC AC SERVO MOTOR βi series

PARAMETER MANUAL

B-65270EN

FANUC LINEAR MOTOR LiS series

FANUC SYNCHRONOUS BUILT-IN SERVO MOTOR DiS series

FANUC AC SPINDLE MOTOR αi/βi series

PARAMETER MANUAL

B-65280EN

BUILT-IN SPINDLE MOTOR Bi series

FANUC AC SERVO MOTOR αis/αi series

AC SPINDLE MOTOR αi series

MAINTENANCE MANUAL

B-65285EN

SERVO AMPLIFIER αi series

FANUC AC SERVO MOTOR βis series

AC SPINDLE MOTOR βi series

MAINTENANCE MANUAL

B-65325EN

SERVO AMPLIFIER βi series

FANUC SERVO AMPLIFIER βi series

MAINTENANCE MANUAL

B-65395EN

FANUC SERVO GUIDE

OPERATOR’S MANUAL

B-65404EN

FANUC AC SERVO MOTOR αis/αi/βis series

SERVO TUNING

B-65264EN

PROCEDURE (BASIC)

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

11.2 PREVENTIVE MAINTENANCE OF MOTORS AND

DETECTORS

11.2.1 Warnings, Cautions, and Notes on Preventive Maintenance of

Motors and Detectors

This subsection contains the safety precautions for motor and detector preventive maintenance, which are

classified into "warnings", "cautions", and "notes" according to their bearing on safety. Make sure that

you understand and comply with these precautions when carrying out the maintenance work.

WARNING

•

Make sure that you are safely dressed and have a safe working environment when

performing preventive maintenance for a motor.

-

Be dressed safely, e.g. by wearing gloves and safety shoes, to protect against injury due to an

edge or protrusion and electric shock.

-

Have the work done by more than one person, where possible, so that immediate action can be

taken if an accident occurs when handling a motor.

-

A motor is heavy. When moving it, use a crane or other appropriate equipment to protect

against injury. For information about the weight of the motor, refer to its DESCRIPTIONS

manual (shown earlier).

-

Clothes or fingers can be caught in a rotating motor or come into contact with a moving part of

it. Standing in the direction of motor rotation (direction of motion) can pose a risk of injury.

Before rotating a motor, check that there is no object that is thrown away by motor rotation.

•

Be careful about electric shock, fire, and other accidents.

-

Do not handle a motor with a wet hand.

-

To prevent electric shock, make sure that no conductive object, such as a terminal, is exposed

when the motor is powered on.

-

Before touching a motor or any surrounding part, check that the power is shut off and take

appropriate safety precautions.

-

High voltage remains across power line terminals of a motor even after the power is shut off

(for at least five minutes). Do not touch a motor in such a condition or connect it to other

equipment.

-

A loose or disconnected terminal, short-circuited terminals, or a terminal connected to the

ground can cause overheating, spark, fire, or damage to the motor. Take appropriate

precautions to prevent these accidents.

-

When placed near any inflammable object or material, a motor can be ignited, catch fire, or

explode. Avoid placing it near such object or material.

•

Do not disassemble or modify a motor.

Motors such as linear motors, synchronous built-in servo motors, and synchronous built-in spindle

motors contain very strong magnets. If electronic medical apparatus comes near, these motors can

cause the apparatus to malfunction, potentially putting the user's life in danger. Also, disassembling

or modifying a motor can cause a failure, regardless of the type of motor. Do not disassemble or

modify a motor in any way not specified by FANUC.

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B-64305EN/03

11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

NOTE

• This manual is focused on the preventive maintenance work to be performed for

a single FANUC motor or detector alone. The information contained herein may

not apply depending on the type or configuration of the machine. When reading

this manual, refer to the manual of the machine as well. If you have any

questions or doubts, do not act on your own; please contact the machine tool

builder or FANUC.

• For detailed information about a motor, see the manual list shown earlier and, if

necessary, obtain the latest version of the corresponding manual.

11.2.2 Preventive Maintenance of a Motor (Common to All Models)

This subsection describes the common preventive maintenance items to be handled regardless of the

model of the motor. For the items specific to a particular motor model, see one of the subsequent

subsections that pertains to that particular motor model.

CAUTION

• The preventive maintenance method differs from machine to machine in many

respects. Depending on the machine in use, it may be difficult for the user to

perform periodic inspection or cleaning. If you are not sure about anything as to

preventive maintenance, consult with the machine tool builder and ensure that

you can perform periodic inspection and cleaning.

• The machine should be used within the scope of specification defined by the

machine tool builder. Using the machine in any way that is outside the specified

scope can reduce the motor's service life or cause a failure.

11.2.2.1 Main inspection items

The following table summarizes the main inspection items for a motor. If any of these items is found to

be abnormal, stop the use of the machine immediately and fix the abnormal part by repairing or

replacing it. At the same time, identify and remove the cause and take a measure to prevent its

recurrence. If it is difficult to take a preventive measure or to prevent its recurrence, consult with the

machine tool builder or FANUC.

Appearance of

Crack or

-

Check the motor for any scar, crack, deformation, bulge, etc.

the motor

deformation

-

If the interior of the motor is visible or there is interference with a

peripheral component, it is imperative to replace the motor or the

peripheral component.

-

A light peel-off or scar of the surface may be repairable; consult with

FANUC.

Wet or dirty part

-

If you find any wet or dirty part, clean it immediately.

-

A preventive measure is needed if the part in question remains wet

continually due to cutting fluid or dew condensation.

Operating

Temperature,

-

Comply with the operating conditions of the machine. For details of

conditions

humidity, etc.

the operating conditions of a specific motor, refer to the

corresponding DESCRIPTIONS manual. Generally, the ambient

temperature should be 0°C to 40°C (or 30°C for a spindle unit) and

dew condensation is not allowed. In a place subject to severe

vibration, the components of the motor may be broken.

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

B-64305EN/03

Connection state

Cable

-

Check for any cable sheath damage, exposed conductor, damaged

conduit or cable bearing, abnormal bending, loose terminal, etc.

-

If there is any trace of fluid flowing, the fluid may have entered the

inside of the motor or connector. It is necessary to make a check and

take a measure to prevent recurrence.

Connector/terminal

-

Check for any cracked, exposed, loose, or removed terminal or

connector, etc.

-

Fluid causes a failure; be sure to remove fluid.

-

A scarred or damaged connector or terminal needs to be replaced. In

the case of a resin molded motor, such as a linear motor, the motor

needs to be replaced.

Operation of the

Noise/vibration

-

Check for any abnormal noise or vibration not only when the motor is

motor

running (the spindle is rotating) but also when it is stopped.

-

Abnormal noise heard when the motor is rotating indicates an

abnormality of the bearing or a failure inside the motor.

Movement

-

Check that the motor operates normally and smoothly.

-

If the circuit breaker trips at the same time the motor starts to

operate, it indicates abnormal motor windings.

Heat

Check whether the motor does not overheat during the normal operation

cycle.

Note: While the motor is running or immediately after it is stopped, the

motor surface may become very hot. Instead of touching the motor

directly by hand, use a thermolabel, surface thermometer, etc.

Electric

Winding resistance

If the resistance value exceeds the specified range, the motor needs to

characteristics of

be replaced.

the motor

Note: When conducting winding resistance measurement, disconnect the

motor from the amplifier and measure the resistance at the power line or

connector closest to the motor.

Insulation resistance

For the measuring method and judgment criteria, see the table that

follows.

Cooling fan

Noise/vibration

-

Check that the fan blows air normally without causing abnormal noise

(for a model with

or vibration.

a fan motor)

-

If abnormal noise is heard even when the motor is stopped, it

indicates a fan motor failure.

Movement

-

If the power is on and if the fan does not operate or the fan blades

cannot be moved even manually, or if the fan blades are rotating but

no cooling wind is blown out, the fan motor may have cutting chips or

sludge accumulated in it and needs to be cleaned.

-

If the fan does not operate normally for any other reason, the fan

motor needs to be replaced.

Forcible cooling

Dew condensation

-

Check that forcible cooling does not cause dew condensation on the

unit

(over-cooling)

motor surface. Dew condensation is likely particularly when the

(when using an

cooling unit continues to run after the machine is stopped. In that

external cooling

case, be sure to make this check.

unit such as

-

Dew condensation or water drop on the motor surface can reduce

liquid cooling

the motor's service life. It is necessary to wipe it dry and take a

unit)

measure to prevent recurrence.

Liquid leakage/clog

-

Check the cooling pipe for leakage or clog. Do not drive the motor

unless the leakage or clog is fixed.

-

Liquid leakage from a spindle motor with a through hole indicates a

failure of the coolant joint. In this case, the joint needs to be replaced.

-

In the case of liquid leakage from a linear motor (coil slider), the

linear motor (coil slider) needs to be replaced.

-

If the motor gets wet due to liquid leakage or any other cause, it is

necessary to clean and dry the motor and perform electric

characteristic checks (winding resistance/insulation resistance).

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B-64305EN/03

11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

Insulation resistance measurement

The following table shows the judgment criteria to be applied when measuring insulation resistance

between winding and frame using a megohmmeter (500 VDC).

Insulation resistance

Judgment

100 Ω or higher

Acceptable

The winding has begun deteriorating. There is no problem with the performance at

10 to 100 Ω

present. Be sure to perform periodic inspection.

The winding has considerably deteriorated. Special care is in need. Be sure to perform

1 to 10 Ω

periodic inspection.

Lower than 1 Ω

Unacceptable. Replace the motor.

If insulation resistance drops sharply during a short period of time or if the circuit breaker trips, the

cutting fluid or other foreign matter may have entered the inside of the motor or cable. In that case,

contact the machine tool builder or FANUC for instructions.

CAUTION

• Let the motor dry and cool to room temperature before winding or insulation

resistance is measured. Otherwise, not only an accurate measurement cannot

be performed but also the motor may be damaged.

• The winding or insulation resistance measurement should be performed on the

motor alone, with its power line disconnected.

Measuring insulation resistance with the motor connected to the amplifier may

damage the amplifier.

• During insulation resistance measurement, applying voltage to the motor for a

long time may further deteriorate the insulation of the motor. Therefore, the

measurement of insulation resistance should be performed in a minimum

amount of time where possible.

• When disconnecting the power line and other cables, take an appropriate

measure, such as labeling, to ensure that they can be restored to their original

state.

11.2.2.2 Periodic cleaning of a motor

Periodic cleaning is necessary to remove an accumulation of cutting chips or sludge that may eventually

cause a failure. Also, leaving the cutting fluid or other chemical substance attached for a long time can

reduce the motor's service life substantially. When forcible cooling is provided by a liquid or air cooling

unit, check the unit for pipe clog, fan failure, etc. and perform cleaning periodically to ensure that the

coolant flows smoothly and that the motor is cooled properly.

WARNING

Depending on the type of motor, the handling may involve a risk and require

safety education in advance. Also, some machines are difficult for users to clean

on their own. If you are to clean the motor, consult with the machine tool builder

in advance with regard to the cleaning method, safety education, etc.

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

B-64305EN/03

11.2.2.3 Notes on motor cleaning

A motor is an electric product, which is incompatible with most kinds of fluid. When removing cutting

chips, sludge, cutting fluid, etc. during cleaning, note the following.

Note on cleaning

Measure

Do not sprinkle or spray detergent or any other fluid over the motor (including its

Do not sprinkle fluid.

peripheral components), or do not wash the motor by submerging it in such fluid.

Do not wash by

When cleaning the motor, use a cloth moistened with a small amount of neutral

submerging.

detergent so that the fluid does not enter the inside the motor.

Solvent may damage the motor; do not use one. If the dirt is difficult to remove with

neutral detergent, use a cloth moistened with a small amount of industrial alcohol

Do not use solvent.

(e.g., IPA). Be careful, however, because rubbing with force or repeatedly may

damage the coated or resin surface.

If the motor is wet or moistened after cleaning, dry it before supplying power and

Do not leave the motor

before performing electric tests. When drying the motor in an oven, make sure that

wet or moistened.

the temperature is below 40°C and that hot air does not blow directly against the

motor.

11.2.2.4 Notes on the cutting fluid (informational)

Depending on the type of cutting fluid used, the motor and amplifier may be affected greatly. Take due

care because, even if you ensure that they do not come into direct contact with the fluid, a mist or

atmosphere of the fluid can cause the problems described below.

Type of cutting fluid requiring

Expected problem

care

Some types of cutting fluid contain highly active sulfur. If such cutting fluid

Cutting fluid containing highly

enters the inside of the motor or amplifier, it causes copper, silver, and other

active sulfur

kinds of metal to corrode, leading to a component failure.

Some types of cutting fluid containing such substance as polyalkylene glycol

Synthetic cutting fluid with high

have very high permeability. Such cutting fluid permeates into the inside of

permeability

the motor, causing insulation deterioration or component failure.

Some types of cutting fluid that enhance their alkaline property using such

substance as alkanolamine remain highly alkaline - pH10 or higher - when

Highly alkaline, water-soluble

diluted. If such cutting fluid is left attached for a long time, its chemical

cutting fluid

change will deteriorate the resin and other materials of the motor and

amplifier.

Other types of cutting fluid not mentioned above may cause various unexpected problems. If any problem

arises for which the cutting fluid is thought to be responsible, consult with the machine tool builder or

FANUC.

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

11.2.3 Preventive Maintenance of a Built-in Spindle Motor and

Spindle Unit

This subsection contains the safety precautions you need to bear in mind when performing preventive

maintenance for a built-in spindle motor (BiI or BiS Series) or the FANUC-NSK spindle unit. In some

cases, the work may involve a life-threatening risk or cause substantial damage. Make sure that you fully

understand these safety precautions before carrying out the work.

WARNING

•

Do not disassemble the spindle. Particularly, the rotor of a synchronous built-in

spindle motor (BiS Series) uses strong permanent magnets. The strong magnet

force may cause injury or medical appliance malfunction.

•

Do not operate a synchronous built-in spindle motor with an external engine.

Doing so is very dangerous because it makes the motor act as a power

generator, generating high voltage. A power outage is also dangerous because

the motor runs freely and, again, generates high voltage. As a safety precaution,

a sub module SM (SSM) is connected between motor and amplifier. Do not

disconnect the SSM under any circumstances. Also, connect the machine frame

to the ground to prevent electric shock.

•

A synchronous built-in spindle motor may perform a pole position detection

operation when it receives the first rotation command after it is powered on or

recovers from an alarm. The pole position detection operation takes 20 to 60

seconds to complete, during which the spindle behaves oddly, e.g., rotating

clockwise and counterclockwise alternately in rapid succession. This

phenomenon is not abnormal. During the detection operation, do not touch or

look down at the spindle, which is a dangerous act.

CAUTION

Performing a test run described in Chapter 3, "TEST RUN METHOD", in Part IV,

of "FANUC - NSK SPINDLE UNIT series DESCRIPTIONS (B-65352)" and the

inspection and maintenance work described in this manual is the condition for

guaranteeing the operation of the FANUC-NSK spindle unit. Be sure to perform

the test run and inspection and maintenance work as instructed.

11.2.3.1 Routine inspection of the FANUC-NSK spindle unit

Perform the following routine inspections every day at the start of operation so that stable performance

can be obtained from the spindle.

Item

Check

1

Check if the axis, when turned manually, rotates lightly and smoothly.

WARNING When turning the axis manually, be sure to turn off the power to the machine.

2

Check if cuttings and coolant residuals are attached to the periphery of a slinger.

3

Check if dust such as cuttings is attached to the spindle taper portion.

4

For operation at 15,000 min^-1 or more immediately after turning on, increase the speed gradually

by using the spindle override function. (This substitutes for a simple test run.)

5

Check if an abnormal sound is generated.

6

Check if an abnormal vibration is generated.

7

Check if an abnormal heat is generated.

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

B-64305EN/03

11.2.3.2 Maintenance of the FANUC-NSK spindle unit

A FANUC-NSK spindle unit with a grease unit requires periodical maintenance for consumable/wear

parts, such as supplying grease. Depending on the use frequency of and damage to parts, maintenance

generally becomes necessary after two years of machine operation or 10,000 hours of spindle

operation. Contact FANUC or the machine tool builder when maintenance becomes necessary. Also, an

effective way to reduce the machine down time due to maintenance is to prepare spare parts; consult with

the machine tool builder.

11.2.3.3 Test run of the FANUC-NSK spindle unit

If any of the following cases applies, be sure to contact the machine tool builder and perform a test run as

described in Chapter 3, "TEST RUN METHOD", in Part IV, of "FANUC - NSK SPINDLE UNIT

series DESCRIPTIONS (B-65352EN)".

-

If the spindle unit is rotated for the first time after it is unpacked or attached to the machine

-

If the machine or spindle unit has undergone transportation or relocation

-

If the spindle unit alone has been stored for a period longer than six months or has not been used for

one month or more after installation

CAUTION

FANUC assumes no responsibility for any damage resulting from the failure to perform a

test run or improper use of the spindle unit.

11.2.3.4 Storage method of the FANUC-NSK spindle unit

Apply rust-proof oil to the surface of the spindle unit, pack the spindle unit, and store the packed spindle

unit at a location that satisfies the conditions described below. Also, follow the "This Side Up" and "No

Pile Up" instructions indicated on the pack surface.

-

Indoor well ventilated place not exposed to direct sunlight (place where the temperature varies little,

the room temperature is within 5°C to 40°C, and the humidity is 35% to 85% RH)

-

Place on the shelf subject to little vibration and dust (Do not place the spindle unit directly on the

floor; vibration and dust can damage the bearing or other parts of the spindle.)

Before using the spindle unit after a storage period of one month or more, make necessary checks, such as

measuring winding and insulation resistance, examining the appearance for rust and other problems, and

checking whether the axis can be turned manually. Depending on the storage period, a test run may be

necessary (described earlier).

11.2.4 Preventive Maintenance of a Linear Motor

The magnet plate of a linear motor contains very strong magnets. When performing the maintenance work,

make sure all those engaged in the work fully understand the potential risks involved.

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

WARNING

• The FANUC linear motors use very strong magnets. Improper handling of the

motor is very dangerous and can lead to a serious accident. Particularly, a

person wearing a pacemaker or other medical apparatus should stay away from

the linear motor; otherwise, the apparatus may malfunction, potentially resulting

in a life-threatening accident.

• Those who will come near or touch a linear motor for maintenance work should

receive safety education in advance. For details, contact the machine tool builder

or FANUC.

11.2.4.1 Appearance inspection of the linear motor (magnet plate)

Perform an appearance inspection as well during cleaning or other maintenance work. A crack, chip,

deformation, or any other abnormality in appearance of the motor can lead to a serious failure in the

not-so-distant future. If you find any such abnormality, be sure to report it to the machine tool builder. A

scratch or other slight scar on the motor surface can also be a sign of future trouble and needs to be

addressed with care. Some suggested appearance inspection items for the magnet plate are described

below.

* For the coil slider (the side to which the power line is connected), see "Main inspection items"

earlier in this manual.

Appearance of the magnet plate (which may have a stainless cover)

Appearance inspection item

Measure

Crack or chip in the magnet plate resin

The magnet plate needs to be replaced. If unattended, it can

Deformation or bulge of the magnet plate or

cause trouble in the not-so-distant future. If the problem is

softening of the resin

extremely minor, consult with the machine tool builder or FANUC.

The magnet is exposed, or the resin or

The magnet plate needs to be replaced urgently.

magnet is floating

Foreign matter may have entered into the motor, or interference

Scratch on the magnet plate

between parts is likely. It is necessary to eliminate the cause and

take a measure to prevent recurrence.

Floating, bulging, or deformed stainless

The cover or magnet plate needs to be replaced.

cover

11.2.5 Maintenance of a Detector

CAUTION

• Detectors such as Pulsecoders are precision equipment. When handling a

detector, avoid applying shock to it. Also, exercise care to prevent cutting

powder, dust, cutting fluid, or other foreign matter from attaching to it.

• Make sure that all connectors are connected properly and securely. A

connection failure can cause an alarm or some other problem.

• If the detector and/or connectors are not installed securely, cutting fluid may

enter the inside of the detector, making it necessary to replace the detector. In

that case, contact the machine tool builder or FANUC.

NOTE

If you use a detector not manufactured by FANUC, contact the machine tool

builder or detector manufacturer for detailed information on the detector.

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

B-64305EN/03

11.2.5.1 Alarms for built-in detectors (αi and βi Pulsecoders) and

troubleshooting actions

These alarms concern built-in detectors that are connected directly to the control unit (CNC/servo

amplifier).

Based on the alarm number and description, take an appropriate action as described in the following

subsection, "Detailed troubleshooting methods".

Detailed

Alarm No.: Alarm

Description

Possible cause

Action

troubleshooting

method

-

Communication

361: ABNORMAL PHASE

error in the

- Pulse coder failure

Replace the

(3)

DATA(INT)

Pulsecoder

- Noise

Pulsecoder.

(4)

-

ID data error

Check the effect

364: SOFT PHASE

- Noise

of noise.

(1)

Position data alarm

ALARM(INT)

- Entry of cutting fluid

Replace the

(3)

Pulsecoder.

Replace the

365: BROKEN LED(INT)

LED disconnection

- Pulse coder failure

(3)

Pulsecoder.

Small internal signal

- Pulse coder failure

Replace the

(3)

366: PULSE MISS(INT)

amplitude

- Noise

Pulsecoder.

(4)

Position data count

- Pulse coder failure

Replace the

(3)

367: COUNT MISS(INT)

error

- Noise

Pulsecoder.

(4)

- Cable disconnection

Check the cable.

(2)

368: SERIAL DATA

Communication

- Pulse coder failure

Replace the

(3)

ERROR(INT)

interruption

- Noise

Pulsecoder.

(4)

369: DATA TRANS.

Communication

Check the effect

- Noise

(1)

ERROR(INT)

data alarm

of noise.

453: SPC SOFT

Position - pole data

- Pulse coder failure

Replace the

(3)

DISCONNECT ALARM

error

- Entry of cutting fluid

Pulsecoder.

11.2.5.2 Alarms for separate detectors and troubleshooting actions

These alarms concern separate detectors that are connected to the control unit via a separate detector

interface unit (SDU).

Based on the alarm number and description, take an appropriate action as described in the following

subsection, "Detailed troubleshooting methods".

Detailed

Alarm No.: Alarm

Description

Possible cause

Action

troubleshooting

method

380: BROKEN LED(EXT)

LED disconnection

Position data count

382: COUNT MISS(EXT)

error

Replace the

Small internal

- Detector failure

(4)

383: PULSE MISS(EXT)

detector.

signal amplitude

384: SOFT PHASE

Position data alarm

ALARM(EXT)

Check the cable.

- Cable disconnection

Check the effect

(2)

385: SERIAL DATA

Communication

- Noise

of noise.

(1)

ERROR(EXT)

interruption

- Detector failure

Replace the

(4)

detector.

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

Detailed

Alarm No.: Alarm

Description

Possible cause

Action

troubleshooting

method

386: DATA TRANS.

Communication

Check the effect

- Noise

(1)

ERROR(EXT)

data alarm

of noise.

381: ABNORMAL PHASE

(EXT)

For details, contact the machine tool builder or detector manufacturer.

387: ABNORMAL

ENCODER(EXT)

11.2.5.3 Detailed troubleshooting methods

(1) Checking the effect of noise

Check the value on the diagnostics screen DGN356 (for a built-in detector) or DGN357 (for a separate

detector) of the CNC unit.

Normally, 0 is displayed. However, if the position data from the Pulsecoder becomes unstable due to

noise or some other factor, this value is incremented. The value is cleared when the CNC unit is powered

off. Immediately after the power is turned on, 0 is displayed.

(2) Checking the cable

Check whether the feedback cable is not disconnected and whether the connector is properly plugged.

(3) Replacing the Pulsecoder

× Do not loosen

Bolt fastening the Pulsecoder cover M3

(3)-1 Pulse coder replacement procedure

<1> Remove the four M4 hexagon socket head cap

screws fastening the Pulsecoder. The M3 bolts

○ Remove

Bolt fastening the Pulsecoder M4

fastening the Pulsecoder cover do not need to

be loosed. (See the figure at right.)

<2> Remove the Pulsecoder and Oldham's coupling

Oldham's coupling

(see the following figure).

<3> Set the new Pulsecoder and Oldham's coupling on

the motor. Adjust the direction of the mate

Oldham's coupling to that of the Oldham's

coupling so that the teeth are engaged.

Push in the Pulsecoder until the O ring fits in the

O ring

joint between the motor and Pulsecoder. Take care

so that the O ring of the Pulsecoder is not bitten.

Mate Oldham's coupling

Thermistor connector

Adjust the connector direction

Attach the Pulsecoder in such a direction that the

power connector of the servo motor and the feedback

cable of the Pulsecoder face the same direction or

that the thermistor connection parts of the servo

motor and Pulsecoder match each other

(see the

Adjust the connection parts

figure at left).

Pulse coder

Servo motor

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

B-64305EN/03

<4> Fastening the Pulsecoder with the four M4 hexagon socket head cap screws in the reverse order of

removing the Pulsecoder (<1>). (Appropriate torque: 1.5 Nm)

(3)-2 Feedback cable plugging procedure

Plug in the feedback cable connector, as instructed in the

procedure below, and check that the connector is securely

connected.

<1> Check the plugging side and key direction.

Main key

Coupling nut

Check that the plugging side is free of foreign matter,

such as dirt and oil.

Straight type

Right angle type

<2> Plug in the feedback cable connector.

Hold the connector, as shown in the figure at

right. Plug in the connector until you hear a

click.

Caution)

Do not hold the coupling nut.

<3> Check the connection condition.

1.

Check that the arrow mark of the

connector is at the center, as shown in

the figure at right. If the arrow mark is

not at the center, turn the coupling nut

manually until the mark comes to the

appropriate position.

2.

Hold the connector by the same part as in <2>, and pull it lightly toward you to check that the

connector does not come off. Do not pull the connector with force.

(4) If troubleshooting is difficult for the user

If the problem is difficult for the user to troubleshoot because it is due to a detector failure or noise,

consult with the machine tool builder or FANUC.

11.2.5.4 Maintenance of βiS motor Pulsecoders

Problems concerning the Pulsecoders of the motors listed in the table below require the maintenance

(replacement) of the entire motor (it is not possible to maintain the Pulsecoder alone).

Motor model

Motor specification

Remarks

βiS 0.2/5000

A06B-0111-Bx03

x=1,2,4,5

βiS 0.3/5000

A06B-0112-Bx03

βiS 0.4/5000

A06B-0114-Bx03#0y00

x=1,2,4,5 y=0,1

βiS 0.5/6000

A06B-0115-Bx03#0y00

βiS 1/6000

A06B-0116-Bx03#0y00

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

-

Do not apply an excessively large force to plastic parts. If a plastic section breaks, it may

damage internal parts, thus hindering normal operation or leading to a risk of injury due to a

broken section.

• Be careful about the operating environment of a servo amplifier.

-

Prevent conductive, combustible, or corrosive foreign matter, mist, or drops of water from

entering the inside of the unit. The entry of any such material may cause the unit to explode,

break, malfunction, etc.

-

Exercise care to prevent cutting fluid, oil mist, cutting chips, or other foreign matter from

attaching to the radiator or fan motor exposed to the outside of the power magnetics cabinet.

Otherwise, the servo amplifier may become unable to meet its specifications. The service lives

of the fan motor and semiconductors can also be reduced.

• Clean the heat sink and fan motor on a regular basis.

-

Replace the filter of the power magnetics cabinet on a regular basis.

-

Before cleaning the heat sink, shut down the power and ensure that the temperature of the heat

sink is as cool as the room temperature. The heat sink is very hot immediately after power

shutdown, touching it may cause burn injury.

-

When cleaning the heat sink by blowing air, be careful about dust scattering. Conductive dust

attached to the servo amplifier or its peripheral equipment can lead to a failure.

NOTE

• Make sure that there is sufficient maintenance clearance around the doors of the

machine and equipment.

• Do not step or sit on the servo amplifier, or do not apply shock to it.

• Do not remove a nameplate from a motor.

-

The nameplate is necessary to identify the servo amplifier during maintenance work.

-

If a nameplate comes off, be careful not to lose it.

NOTE

• This manual is focused on the preventive maintenance work to be performed for

a FANUC servo amplifier. The information contained herein may not apply

depending on the type or configuration of the machine. When reading this

manual, refer to the manual of the machine as well. If you have any questions or

doubts, do not act on your own; please contact the machine tool builder or

FANUC.

• For detailed information about a servo amplifier, see the manual list shown

earlier and, if necessary, obtain the latest version of the corresponding manual.

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

B-64305EN/03

11.3.2 Preventive Maintenance of a Servo Amplifier

To use a servo amplifier safely throughout its entire service life, perform daily and periodic

inspections.

CAUTION

• The preventive maintenance method differs from machine to machine in many

respects. Depending on the machine in use, it may be difficult for the user to

perform periodic inspection or cleaning. If you are not sure about anything as to

preventive maintenance, consult with the machine tool builder and ensure that

you can perform periodic inspection and cleaning.

• The machine should be used within the scope of specification defined by the

machine tool builder. Using the machine in any way that is outside the specified

scope can reduce the servo amplifier's service life or cause a failure.

Inspection

Inspection interval

Inspection item

Judgment criterion

part

Routine

Periodic

Around the power magnetics cabinet: 0°C - 45°C

Ambient temperature

V

Inside the power magnetics cabinet: 0°C - 55°C

Humidity

V

90% or below RH (dew condensation not allowed)

There shall be no dust or oil mist attached near the

Dust/oil mist

V

servo amplifier.

The cooling fan shall be operating normally without

Cooling air path

V

Operating

the air flow being interrupted.

environment

-

No abnormal noise or vibration shall be

present that has not been experienced in the

Abnormal

V

past.

vibration/noise

-

Vibration near the servo amplifier shall be 0.5

G or less.

200-V input type: Within 200 - 240 V

Supply voltage

V

400-V input type: Within 400 - 480 V

There shall be no abnormal noise or smell, and

General

V

there shall be no dust or oil mist attached.

Screw

V

There shall be no loose screw.

-

There shall be no abnormal vibration or noise,

Servo

(NOTE 1, 2)

Fan motor

V

and the fan blades shall be rotating normally.

amplifier

-

There shall be no dust or oil mist attached.

Connector

V

There shall be no loose or broken connector.

There shall be no sign of overheating or sheath

Cable

V

deterioration (discoloration pr crack).

The machine operator's panel or screen shall not

Absolute ^{(NOTE 2)}

CNC

V

display the alarm indicating the battery voltage of

Pulse coder battery

the absolute Pulsecoder is low.

Magnetic contactor

V

The contactor shall not rattle or chatter.

External

Ground fault interrupter

V

The interrupter shall be able to trip.

equipment

AC reactor

V

There shall be no hum.

NOTE

1 Fan motors are periodic-replacement parts. It is recommended to inspect fan

motors on a routine basis and replace them in a preventive manner.

2 Fan motors and batteries are periodic-replacement parts. It is recommended to

keep spare parts.

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

11.3.3 Maintenance of a Servo Amplifier

11.3.3.1 Display of the servo amplifier operation status

The STATUS LEDs on the front of the servo amplifier indicate the operation status of the servo amplifier

(whether it is operating normally, the type of alarm, etc.). Use these LEDs for maintenance, inspection,

troubleshooting, etc.

CAUTION

A servo amplifier failure may arise from a combination of multiple causes, in

which case it can be difficult to identify all those causes. Handling the failure in

an improper way may worsen the problem. It is therefore important to analyze

the failure status minutely and identify the true cause or causes of the failure.

There may be cases in which the failure appears to have been fixed but later

recurs or cause a more serious trouble. If you are not sure about the root cause

of or corrective action for a failure, do not act on your own; please contact the

machine tool builder or FANUC for instructions on proper action.

[αi series]

(1) Power supply

STATUS

STATUS LED position

Description

display

The STATUS LED is off.

Control power has not been supplied, cable is faulty, or control

power circuit is defective.

Nameplate

Not ready status

The main circuit is not supplied with power (magnetic contactor is

off); emergency stop state.

Ready status

The main circuit is supplied with power (magnetic contactor is on);

the power supply is ready for operation.

Warning state (The dot at the lower right lights.)

The power supply has failed; an alarm has occurred after a certain

time of operation.

The warning type is indicated by the character displayed.

Alarm status

The alarm type is indicated by the character displayed.

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

B-64305EN/03

(2) Servo amplifier

STATUS LED

STATUS

Description

position

display

The STATUS LED is off.

Control power has not been supplied, cable is faulty, or control

Nameplate

power circuit is defective.

The control power is short-circuited (- blinks).

Blink

Cable failure

Waiting for the READY signal from the CNC.

Ready status

The servo motor is excited.

Alarm status

The alarm type is indicated by the character displayed.

(3) Spindle amplifier

STATUS LED

STATUS

Description

position

display

The STATUS LED is off.

Control power has not been supplied, cable is faulty, or control

power circuit is defective.

After control power is turned on, the spindle software series is

displayed (for approx. 1 second).

The last two digits of the spindle software series number are

displayed.

Nameplate

The spindle software version is displayed (for approx. 1 second

following the display of the spindle software series).

[Display] 01,02,03, ...

→ [Version] A, B, C, ...

The CNC is not powered on (- - blinks).

Blink

Blink

Waiting for serial communication and parameter loading

completion.

Parameter loading completed

The motor is not excited.

Ready status

The spindle motor is excited.

Alarm status

The alarm type is indicated by the character displayed.

Error status (invalid sequence or parameter setting error)

The error type is indicated by the character displayed.

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

[βi SV series]

(yellow)

(yellow)

(yellow)

(green)

(yellow)

(green)

STATUS LED

Description

Control power has not been supplied, cable is faulty, or

None of the LEDs is on.

control power circuit is defective.

Alarm status

The ALM LED (yellow) is on.

The alarm type is indicated by the character displayed.

Communication between CNC and servo amplifier is

The LINK LED (green) is on.

progressing normally.

The POWER LED (green) is on.

The control power of the servo amplifier (5 V) is normal.

[βi SVSP series]

βi SVSP (#A/ #C)

βi SVSP (#D/ #H560/ #H580)

STATUS 1

(Spindle)

STATUS 2

(Servo)

Note) The locate or the shape of the connector and

so on may be different from the real amplifier.

STATUS1 display

Description

(Spindle)

The STATUS LED is off.

Control power has not been supplied, cable is faulty, or control power circuit is

defective.

After control power is turned on, the spindle software series is displayed (for approx.

1 second).

The last two digits of the spindle software series number are displayed.

The spindle software version is displayed (for approx. 1 second following the display

of the spindle software series).

[Display] 01,02,03, ...

→ [Version] A, B, C, ...

The CNC is not powered on (- - blinks).

Waiting for serial communication and parameter loading completion.

Parameter loading completed

The motor is not excited.

Ready status

The spindle motor is excited.

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

B-64305EN/03

STATUS1 display

Description

(Spindle)

Alarm status

The alarm type is indicated by the character displayed.

Error status (invalid sequence or parameter setting error)

The error type is indicated by the character displayed.

STATUS2 display

Description

(Servo)

The STATUS LED is off.

Control power has not been supplied, cable is faulty, or control power circuit is

defective.

Waiting for the READY signal from the CNC.

Ready status

The servo motor is excited.

Alarm status

The alarm type is indicated by the character displayed.

11.3.3.2 Replacement of a fan motor

[αi series]

(1) Fan motor for internal cooling

Replace the internal fan motor, according to the procedure shown in the figure below.

When replacing the fan motor, be careful about the direction of the fan motor (air blow direction),

the direction of the connector, etc.

Air blow direction

Fan unit

(2) Remove the fan

(1) Hold the two tabs

and get the fan unit

unit by pulling it

White Black Red

off the latch.

upward.

Fan unit (60-mm-wide)

Tab

Tab

Be careful about the

connector key direction.

Fan unit (90-mm-wide)

Red

Black

White

Be careful about the

connector key direction.

Fan unit (150-mm-wide)

* Be careful about the fan motor and connector directions.

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11.MOTOR/DETECTOR/AMPLIFIER PREVENTIVE MAINTENANCE

(2) Fan motor for cooling external heat sink

<1> Remove the two sheet metal mounting screws (for the 60-mm-wide model only), and detach the

fan motor from the unit together with the sheet metal.

<2> Remove the fan motor mounting screws (two for one fan motor and four for two fan motors).

<3> Remove the connector mounting screws (two and four for the 300-mm-wide model).

When replacing the fan motor, be careful about the direction of the fan motor (air blow direction),

the direction of the connector, etc.

Sheet metal mounting screws

Fan motor

Fan motor

Fan motor

Connector mounting screw

Connector mounting screw

Connector mounting screw

mounting screw

mounting screw

mounting screw

Air blow

Air blow

Air blow

direction

direction

direction

60 mm wide/90 mm wide

150 mm wide

300 mm wide

[βi series]

Replace the fan motor, according to the procedure shown in the figure below.

When replacing the fan motor, be careful about the direction of the fan motor (air blow direction), the

direction of the connector, etc.

Fan motor mounting notch

Air blow direction

Fan connector

Fan unit

Fan unit

(2) Pull the fan unit _{White Black Red}

(1) Push the hooks to set

upward.

the fan unit loose.

Top view of the amplifier

Air blow direction

Be careful about the

Fan connector

(4) Lift the fan unit

connector key direction.

toward you.

(1) Pull up the fan

connector to

remove it.

(3) Set the fan unit

Air blow

(2) Push down

the fan unit

loose.

direction

to get it off

(1) Remove four M4

the hooks.

screws.

Fan unit

(2) Pull out the fan

unit.

βiSV4, 20 (internal fan)

βiSV40, 80 (internal fan)

βiSV40, 80 (external fan)

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APPENDIX

A.ALARM LIST

A ALARM LIST

Appendix A, "ALARM LIST", consists of the following sections:

A.1 ALARM LIST (CNC)

435

(1) Alarms on program and operation (PS alarm)

435

(2) Background edit alarms (BG alarm)

435

(3) Communication alarms (SR alarm)

435

(4) Parameter writing alarm (SW alarm)

460

(5) Servo alarms (SV alarm)

460

(6) Overtravel alarms (OT alarm)

465

(7) Memory file alarms (IO alarm)

466

(8) Alarms requiring power to be turned off (PW alarm)

466

(9) Spindle alarms (SP alarm)

467

(10) Overheat alarms (OH alarm)

469

(11) Other alarms (DS alarm)

469

(12) Malfunction prevention function alarms (IE alarm)

473

A.2 ALARM LIST (PMC)

473

A.2.1 Messages That May Be Displayed on the PMC Alarm Screen

473

A.2.2 PMC System Alarm Messages

477

A.2.3 Operation Errors

480

A.2.4 I/O Communication Error Messages

491

A.3 ALARM LIST (SERIAL SPINDLE)

495

A.4 ERROR CODES (SERIAL SPINDLE)

503

A.1 ALARM LIST (CNC)

(1) Alarms on program and operation (PS alarm)

(2) Background edit alarms (BG alarm)

(3) Communication alarms (SR alarm)

Alarm numbers are common to all these alarm types.

Depending on the state, an alarm is displayed as in the following examples:

PS"alarm number"

Example: PS0003

BG"alarm number"

Example: BG0085

SR"alarm number"

Example: SR0001

Number

Message

Description

0001

TH ERROR

A TH error was detected during reading from an input device.

The read code that caused the TH error and how many

statements it is from the block can be verified in the

diagnostics screen.

0002

TV ERROR

An error was detected during the single-block TV error.

The TV check can be suppressed by setting TVC parameter

No. 0000#0 to “0”.

0003

TOO MANY DIGIT

Data entered with more digits than permitted in the NC

instruction word.

The number of permissible digits varies according to the

function and the word.

0004

ADDRESS NOT FOUND

NC word(s) address + numerical value not in word format.

This alarm is also generated when a custom macro does not

contain a reserved word, or does not conform to the syntax.

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A.ALARM LIST

APPENDIX

B-64305EN/03

Number

Message

Description

0005

NO DATA AFTER ADDRESS

NC word(s) address + numerical value not in word format.

This alarm is also generated when a custom macro does not

contain a reserved word, or does not conform to the syntax.

0006

ILLEGAL USE OF MINUS SIGN

A minus sign (-) was specified at an NC instruction word or

system variable where no minus signal may be specified.

0007

ILLEGAL USE OF DECIMAL POINT

A decimal point (.) was specified at an address where no

decimal point may be specified, or two decimal points were

specified.

0009

IMPROPER NC-ADDRESS

An illegal address was specified, or parameter 1020 is not set.

0010

IMPROPER G-CODE

An unusable G code is specified.

0011

FEED ZERO ( COMMAND )

The cutting feedrate instructed by an F code has been set to

0.

This alarm is also generated if the F code instructed for the S

code is set extremely small in a rigid tapping instruction as the

tool cannot cut at the programmed lead.

0015

TOO MANY SIMULTANEOUS AXES

A move command was specified for more axes than can be

controlled by simultaneous axis control.

Either divide the number of programmed move axes into two

blocks.

0020

OVER TOLERANCE OF RADIUS

An arc was specified for which the difference in the radius at

the start and end points exceeds the value set in parameter

No. 3410. Check arc center codes I, J and K in the program.

The tool path when parameter No. 3410 is set to a large value

is spiral.

0021

ILLEGAL PLANE SELECT

The plane selection instructions G17 to G19 are in error.

Reprogram so that same 3 basic parallel axes are not

specified simultaneously.

This alarm is also generated when an axis that should not be

specified for plane machining is specified, for example, for

circular interpolation.

T

In the 0i -TD, the helical interpolation option is needed to

enable the specification of 3 or more axes for the G02/G03

block.

0022

R OR I,J,K COMMAND NOT FOUND

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.

0025

CIRCLE CUT IN RAPID (F0)

M

F0 (rapid traverse in one-digit F code feed or inverse feed)

was specified during circular interpolation (G02, G03).

0027

NO AXES COMMANDED IN

M

G43/G44

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

offset type C.

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

length offset type C.

Multiple axes were specified for the same block when the tool

length compensation type is C.

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