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FANUC Series 30i-MODEL B, 31i-MODEL B, 32i-MODEL B. MAINTENANCE MANUAL - page 20

10.TROUBLESHOOTING

B-64485EN/01

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PMC alarm

ER97 IO LINK FAILURE

If "ER97 I/O Link FAILURE(CHx Gyy)" is displayed on the alarm screen of the PMC, the number of I/O

devices connected to channel xx of the I/O Link i or I/O Link is not the same as the number of devices

allocated to the I/O Link i or I/O Link.

-

I/O Link screen of the PMC

From the function key

menu, select [PMC MAINTE] and [I/O DEVICE] in that order. The I/O

devices recognized by the CNC are displayed. From this screen, the devices that are connected normally

can be determined.

Screen display example

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

I/O module for

Control unit

connector panel

JD51A

Group 0

Operator's panel I/O

module

Group 1

-

Checking the power supplies of the I/O devices

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

are as prescribed.

Check that the power-on sequence is correct.

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

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

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When the CNC is turned off, the I/O devices must also be turned off. （Refer to Section “TURNING ON

AND OFF THE POWER TO THE CONTROL UNIT” in the CONNECTION MANUAL

(HARDWARE) (B-64483EN) for details）

-

Connection of cables

As in the example shown on the previous page, I/O Link i or I/O Link cables are used to connect JD1A

(JD51A) and JD1B.

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

Check that the cables are connected correctly.

-

Connection of ground wires

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

-

Connection of I/O signals

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

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

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

common pin.

-

I/O Link i or I/O Link allocation

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

From the function key

menu, select [PMC CONF], [MODULE], and [EDIT] in that order. The

allocation edit screen appears.

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

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

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

AN UNEXPECTED ADDRESS

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

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

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

→ Perform the check described in Section 10.8.

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

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

below.

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

Correct connection (the allocation starts with X0)

CA52

CA53 CA52

CA53 CA52

CA53

Basic

Expansion 1

Expansion 2

Expansion 3

X0-2

X3-5

X6-8

X9-11

Incorrect connection (the allocation starts with X0)

CA52

CA52 CA53

CA53 CA52

CA53

Basic

Expansion 1

Expansion 2

Expansion 3

X0-2

X9-11

X6-8

X3-5

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

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

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

skipped.)

→ See the following example and refer to the Connection Manual (Hardware) (B-64483EN).

Example) Rotary switch setting on expansion unit 1=1

CA52

CA53

Basic

Expansion 1

X0-2

X6-8

⇐ X3 to X5 are skipped.

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

TO AN EXPANSION UNIT

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

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

DO signals are not input and output.

→ Check whether +24-V power is supplied to No. 1 pin and No. 3 pin of the expansion unit, when DI

signals are input and DO signals are not output.

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10.11 ALARM SR0085 TO SR0087 (READER/PUNCHER

INTERFACE ALARM)

START

YES

Alarm SR0085?

NO

-

Check baud rate and

other I/O parameters

-

I/O device is faulty

YES

Alarm SR0086?

NO

NO

Is I/O parameter

correct?

YES

-

Reset the parameter

according to the item

of data I/O.

OFF

Is power of I/O ?

ON

-

Turn on I/O device

NO

Is cable connection

right?

YES

-

Connect the cable

-

I/O device is faulty

-

Main board or serial

communication board

is faulty

Alarm SR0087?

-

I/O device is faulty

-

Main board or serial

communication board

is faulty

Causes

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

Check the following setting data and parameters.

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

(c) Main board or serial communication board is faulty.

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

Countermeasures

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

Check the following setting data and parameters:

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Setting

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

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

If punch code does not match, alarm SR0086, “DR OFF” will generate.

-

Parameter

Value of parameter 0020

0

1

2

Function

Feed

0101#7

0111#7

0121#7

Data input code

0101#3

0111#3

0121#3

Stop bit

0101#0

0111#0

0121#0

Type of I/O device

102

112

122

Baud rate

103

113

123

0135#3

-

-

-

Communication method

RS-232C

Main board

Connector

JD56A

JD36A

NOTE

Numbers in the table indicate parameters and bit numbers.

Example) 0101#7: Bit7 of parameter No. 0101.

#7

#6

#5

#4

#3

#2

#1

#0

0101

NFD

ASI

SB2

0111

0121

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

(FANUC PPR)

1: Feed is not output (standard).

ASI 0: Data input code is EIA or ISO (automatic recognition)

1: Data input code is ASCII.

SB2 0: No. of stop bits is 1.

1: No. of stop bits is 2.

0102

Type of I/O device

0112

0122

Value

TYPE OF I/O DEVICE

0

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

1

FANUC CASSETTE ADAPTOR 1 (FANUC CASSETTE B1/ B2)

2

FANUC CASSETTE ADAPTOR 3 (FANUC CASSETTE F1)

FANUC PROGRAM FILE Mate,

FANUC FA CARD ADAPTOR

3

FANUC FLOPPY CASSETTE ADAPTOR,

FANUC Handy File,

FANUC SYSTEM P-MODEL H

4

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

5

Portable tape reader

FANUC PPR, FANUC SYSTEM P-MODEL G,

6

FANUC SYSTEM P-MODEL H

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0103

Baud rate

0113

0123

Value

Baud rate

11

9600

7

600

12

19200

8

1200

9

2400

10

4800

(b)

External I/O device or Host computer is in trouble

(i)

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

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

If they are not the same, change the setting.

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

the spare I/O device.

(c)

Main board or serial communication control module is faulty

(i)

When parameter No.0020 is 0, 1, or 2 (JD56A, JD36A of Main board)

Replace the module since main board may be faulty.

(d)

Cable between CNC and I/O device is faulty.

Check the cable for disconnection or wrong connection.

-

Connection

Main board

RS232C (JD56A)

Punch panel

RS232C (JD36A)

Such as I/O device

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Cable connection

RS232C (JD56A)

(JD36A)

Punch panel

RD

(01)

(03)

RD

0V

(02)

DR

(03)

(06)

DR

0V

(04)

CS

(05)

(05)

CS

0V

(06)

CD

(07)

(08)

CD

0V

(08)

(09)

+24V

(10)

SD

(11)

(02)

SD

0V

(12)

ER

(13)

(20)

ER

0V

(14)

RS

(15)

(04)

RS

0V

(16)

(07)

SG

(17)

(18)

+24V

(19)

(25)

+24V

(20)

(01)

FG

Shield

Connector : Half-pitch

Connector :DBM-25S

G

G

20-pins (PCR)

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10.12 ALARM PS0090 (REFERENCE POSITION RETURN IS

ABNORMAL)

Contents

Reference position return was executed when the following condition is not satisfied:

The CNC received one rotation signal at least one time when the axis is moving to the reference position

at a speed higher than a speed equivalent to 128 pulses of position error amount (DGN300).

Countermeasures

START

Check whether position gain is greater than

128

Position error amount :

pulses (DGN 300) before or during reference position

DGN 300

return.

YES

128 or more

(1) Next page

NO

Raise the speed

Check feed rate command:

PRM

1420 F : Rapid traverse rate

[mm/min]

PRM

1424

Manual rapid traverse rate

[mm/min]

PRM

1825 G : Servo loop gain

[0.01sec^-1]

F×5000/3

Position error =

G × detection unit [μm/PULSE]

Detection unit

: Move amount to a command pulse (usually 1μm)

In metric machine, if the no. of digits below decimal point is

4 on the position display screen, detection unit is 0.1 μm.

Check rapid traverse override signals :

ROV1

ROV2

Override

ROV1 DGN

014.0

0

0

100%

ROV2 DGN

014.1

0

1

50%

1

0

25%

PRM

1421 F0 rate

1

1

F0 rate

Check reference position return deceleration signal

*DEC1 to *DEC8 DGN 009.0 to 009.7

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

rate becomes FL rate.

PRM 1425 FL rate

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(1)

Check whether the motor rotated more than one

rotation (one rotation signal is issued ) at faster than

128 pulses of position error amount.

NO

Return start position is too close

Rotated ?

- Change the return start position.

- Move the machine at faster that 128

YES

pulses for more than one rotation to

wards RP.

Check that voltage of Pulsecoder is higher than 4.75 V.

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

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

NO

More than 4.75V

YES

Hardware failure

Pulse coder power voltage is low

- Pulse coder is faulty

Change Pulsecoder or motor

CAUTION

(1) After the Pulsecoder or motor is exchanged, reference position or machine's

standard point may be different from former one. Please set it correctly.

Reference

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

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

If bit 0 of parameter No. 2000 is set to 1, a speed corresponding to a positional

deviation of 1280 pulses or more is required.

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

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

to 0, 128 is assumed as the minimum positional deviation. If bit 0 of parameter

No. 2000 is set to 1, a value equal to ten times the set value is used for

checking.)

10.13 ALARM DS0300 (REQUEST FOR REFERENCE POSITION

RETURN)

Absolute position data in the serial Pulsecoder was lost.

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

the serial Pulsecoder is disconnected).

Countermeasures

Machine position must be memorized using the following method:

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When reference position return function is present

1

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

manual reference position return cannot be executed because of an another alarm, set bit 5 (APCx)

of parameter No. 1815 to 0 and release the alarm and perform manual operation.

2

Press

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

-

When reference position return function is not present

Execute dogless reference position setting to memorize the reference position.

-

When serial Pulsecoder is changed

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

1850) to correct the position.

Related parameters

#7

#6

#5

#4

#3

#2

#1

#0

1815

APCx

APZx

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

detector is used

0: Not corresponding

1: Corresponding

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

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

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

completes the positional correspondence between the machine position and the position

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

#5 APCx Position detector

0: Other than absolute position detector

1: Absolute position detector (absolute pulse coder)

10.14 ALARM SV0401 (V READY OFF)

Causes and Countermeasures

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

turns off during operation.

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

take the action for the first alarm.

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

the CNC may be defective.

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VRDY

CNC

Servo amplifier

MCON: From the CNC to the servo amplifier

(Turn MCC on to request the activation of the

servo motor)

VRDY: From the servo amplifier to the CNC

(Notifies that the servo is ready)

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

-

Example of connection around the amplifier (Typical example)

Servo

Servo

Spindle

Common

amplifier amplifier

amplifier

power

supply

Control

power

supply

Emergency stop

circuit

Serial spindle

Servo

Servo

Spindle

motor

motor

motor

3-phase

Circuit

AC

breaker

reactor

Single-p

hase

Circuit

breaker

Check items

• Is the Common Power Supply on?

• Has an emergency stop been canceled?

• Is a terminating connector connected to the JX1B connector of the terminating amplifier?

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

Power Supply, check that sequence also.

• Is the power for driving MCC supplied?

• Is the breaker on?

• Has some alarm been issued in the Common Power Supply or spindle amplifier?

• Diagnosis data No. 358, V ready-off information. (See Section, “DIAGNOSIS FUNCTION” for

details.)

-

Replacing the servo amplifier

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

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Replacing the axis control cards

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

10.15 ALARM SV0404 (V READY ON)

Causes and Countermeasures

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

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

-

VRDY

CNC

Servo amplifier

MCON: From the CNC to the servo amplifier

(Turn MCC on to request the activation of the

servo motor)

VRDY: From the servo amplifier to the CNC

(Notifies that the servo is ready)

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

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

CNC turns MCON on.

-

Replacing the servo amplifier

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

-

Replacing the axis control cards

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

10.16 ALARM SV0462 (SEND CNC DATA FAILED)

ALARM SV0463 (SEND SLAVE DATA FAILED)

Causes and Countermeasures

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

communication error.

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

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

-

Servo amplifier or optical cable

Any of the optical cables between the CNC control unit and the amplifier corresponding to the axis

number indicated in the alarm message may be defective.

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

-

Axis control cards

The axis control cards installed on the CNC may be defective.

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10.19 ALARM OH0701 (OVERHEAT: FAN MOTOR)

Causes and Countermeasures

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

the operation of the CNC.

-

Fan motors

Fan motors are installed in the uppermost portion of the CNC control unit. Each fan motor is attached

with an alarm detector circuit, which notifies the CNC of a fault such as the stoppage of the fan motor,

thereby issuing this alarm.

If this alarm is issued, replace the fan motor according to "Replacing the fan motor" or "Replacing the fan

unit".

10.20 ALARM SV5134 (FSSB: OPEN READY TIME OUT)

ALARM SV5137 (FSSB: CONFIGURATION ERROR)

ALARM SV5197 (FSSB: OPEN TIME OUT)

Causes and Countermeasures

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

amplifier connected to the FSSB. They are issued also if the setting of a parameter related to the FSSB is

incorrect. Check diagnosis data Nos. 3510, 3511, and 3513 and change the corresponding parameter

accordingly. (See Section, “DIAGNOSIS FUNCTION” for details.)

No.

Message

Description

SV5134

FSSB:OPEN READY

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

TIME OUT

card is thought to be defective.

SV5137

FSSB:CONFIGURATION

An FSSB configuration error occurred.

ERROR

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

SV5197

FSSB:OPEN TIME OUT

The initialization of the FSSB was completed, but it could not be opened.

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

-

Checking the parameter settings

Check that the FSSB-related parameters are set correctly.

-

Power supplies of the servo amplifiers

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

-

Replacing the axis control cards, optical cables, and servo amplifiers

Replace the axis control cards on the CNC.

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

defective item.

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

Causes and Countermeasures

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

controlled axes.

-

FSSB setting screen

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

amplifiers recognized on the FSSB are displayed.

-

Optical cable or servo amplifier

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

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

supplies of the amplifiers.

-

Power fault of a servo amplifier

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

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

for other reasons.

-

Axis control cards

The axis control cards installed on the CNC may be defective.

10.22 SERVO ALARMS

The servo alarms are listed in Appendix A. For explanations about the alarms related to servo amps and

servo motors, refer to the FANUC AC SERVO MOTOR αi series, AC SPINDLE MOTOR αi series, and

SERVO AMPLIFIER αi series Maintenance Manual (B-65285EA).

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

control cards.

10.23 SPINDLE ALARMS

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

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

Number

Contents

SP9001 to later: Spindle_n

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

10.24 SYSTEM ALARMS

10.24.1 Overview

The FANUC 30i series makes a transition to the special processing state called the system alarm state

when a state that disables the continuation of normal system operation is detected.

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

are performed:

• Servo and spindle amplifier excitation is turned off.

• Disconnection of I/O Link i or I/O Link communication

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Fig. 10.24.1 (a) Example of system alarm screen

Types of System Alarms

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

• Software causes

• Hardware causes

• Others

-

Software causes

Mainly, the CNC system software detects software errors.

Typical causes are as follows:

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

• Access to outside of the valid data/instruction ranges

• Division by zero

• Stack overflow

• Stack underflow

• DRAM checksum error

-

Hardware causes

Mainly, hardware detects hardware errors.

Typical causes are as follows:

• Parity error (DRAM, SRAM, cache)

• Bus error

• Power supply alarm

• FSSB cable disconnection

-

Others

Moreover, system alarms are caused by the following:

• Causes detected by peripheral software

Servo software (such as watchdog)

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

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10.24.2 Operations on the System Alarm Screen

Description of system alarm screen

When a system alarm is issued, the screen display is switched to a screen as shown below (Fig. 10.24.2

(a)).

This screen is referred to as the system alarm screen.

Fig. 10.24.2 (a) System alarm screen

The system alarm screen consists of several pages of information.

The following key operations are used:

,

Switches between pages.

Executes the IPL monitor.

Saving of system alarm information

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

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

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

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

saved.

Saved system alarm information can be output from the IPL screen to the memory card.

Output of system alarm information

With the FANUC Series 30i /31i /32i, saved system alarm information can be output from the IPL screen

to the memory card.

1.

Start the IPL monitor.

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

key.

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

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2.

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

3.

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

4.

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

ALARM FILE FROM DRAM".

If the power is turned off, enter

1 to select "1. OUTPUT SYSTEM ALARM FILE FROM

FILE-RAM".

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5.

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

output.

6.

Enter the file name to output the file.

NOTE

1 Specify the name of a file to be output to a memory card in the format of a file

name (8 characters) and file extension (3 characters). Begin the file name and

file extension with an alphabetic letter or number.

2 If the name of a file output to a memory card contains any of the characters

listed below, a problem will arise when an attempt is made to read data from the

file on a PC. So, do not use these characters. The period can be used only as a

delimiter between the file name and file extension.

. " / ¥ [ ] : ; = , * ? < > + (space character)

3 If the name of a file output to a memory card is any of the character strings listed

below, a problem will arise when an attempt is made to read data from the file on

a PC. So, do not use these character strings as a file name.

CON , AUX , COM1 , COM2 , COM3 , COM4 , LPT1 , LPT2 , LPT3 , PRN , NUL

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10.24.3 System Alarms Detected by Hardware

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

The basic screen configuration is shown below:

①

SERIES 30I GXXXX

②

SYS_ALM401 EXTERNAL BUS INVALID ADDRESS

③

MAIN BOARD

④

2010/04/14 17:09:53

⑤

PROGRAM COUNTER

: 1000B52CH

｜

ACT TASK

: 01000010H

｜

ACCESS ADDRESS

:

-

｜

ACCESS DATA

:

-

↓

ACCESS OPERATION :

-

⑥

BUS MASTER PCB

: MAIN BOARD

｜

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

｜

02 MAIN BOARD 03012003 22110000 80010000 00000000 00010000 00000000

｜

FFFFFFFF FFFFFFFF 68C08216 70FE0000 00000000 00000000

｜

00000000 00000000 00000000 00000000 00000000

｜

｜

BUS SLAVE PCB

: CPU CARD

｜

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

｜

00 CPU CARD

02071004 20100000 00000000 00000000 00000000 00000000

｜

FFFFFFFF FFFFFFFF 10B0FC00 CFF90001 68C30061 82160010

｜

000000F0 00000000 00010000 00000000 00000000

｜

｜

INFORMATION REGISTER

｜

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

↓

02 MAIN BOARD 00000000 00000000 00000000 00000000

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1/8)

[Description of the message screen]

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

(2): System alarm number and error message

(3): Most possibly faulty component

(4): Date and time when the error occurred

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

(6): Bus information when the error occurred

NOTE

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

component to see whether it is defective. See the Table 10.24.3 (a) for the alarm

messages that may prompt you to take measures other than the replacement of

a component indicated by Item (3).

Information about system alarms displayed on the screen can be output as a text file via the PCMCIA port

of the LCD (or the PCMCIA port of a CNC if the CNC is a stand-alone type CNC (having PC

functions)).

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

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10.TROUBLESHOOTING

B-64485EN/01

Table 10.24.3 (a)

Message

Description

Causes

Countermeasures

SYS_ALM401

A problem

The printed circuit

It is likely that, besides the most possibly faulty

EXTERNAL BUS

occurred on a

board may be

component displayed, the main board and “MASTER

INVALID ADDRESS

CNC bus.

defective or external

PCB” or “SLAVE PCB” displayed on the system alarm

noise may affect the

screen may be defective. This error may also be

bus.

caused by external noise. Check whether there is a

noise origin around the machine and whether the

machine is grounded properly.

SYS_ALM403

A problem

The printed circuit

It is likely that, besides the most possibly faulty

S-BUS TIME OUT

occurred on a

board may be

component displayed, the main board and “MASTER

ERROR

CNC bus.

defective.

PCB” or “SLAVE PCB” displayed on the system alarm

screen may be defective.

SYS_ALM404

A problem

The printed circuit

It is likely that, besides the most possibly faulty

ECC

occurred on a

board may be

component displayed, the main board and “MASTER

UNCORRECTABLE

CNC bus.

defective or external

PCB” or “SLAVE PCB” displayed on the system alarm

ERROR

noise may affect the

screen may be defective.

bus.

This error may also be caused by external noise. Check

whether there is a noise origin around the machine and

whether the machine is grounded properly.

SYS_ALM502

Noise or an

A power fault

Identify and remove the cause of an abnormal condition

NOISE ON POWER

instantaneous

occurs.

such as noise. This error may damage SRAM data.

SUPPLY

power failure

occurred in the

CNC power

supply.

10.24.4 System Alarms 114 to 160 (Alarms on the FSSB)

Causes

An alarm was detected on the FSSB.

NOTE

The alarm message states the location of a faulty component. The location is

indicated using the following character strings.

MAIN : Servo card or additional axis board in the CNC

AMPx : The xth servo amplifier or spindle amplifier as counted from the CNC of

each line.

A 2-axis amplifier and 3-axis amplifier are each counted as one unit.

SDUx : The xth separate detector interface unit as counted from the CNC of

each line

LINEx : FSSB line where an alarm arose

”/LINEx” following a message if displayed indicates the number of an optical

connector on a servo control printed circuit board.

LINE1 : COP10A-1 on the servo card

LINE2 : COP10A-2 on the servo card

LINE3 : COP10A-3 on the additional axis board

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B-64485EN/01

10.TROUBLESHOOTING

Message

Description and countermeasures

SYS_ALM114 FSSB DISCONNECTION (MAIN -> AMP1) /LINEx

<Description>

SYS_ALM115 FSSB DISCONNECTION (MAIN -> SDU1) /LINEx

No FSSB communication can be performed

SYS_ALM116 FSSB DISCONNECTION (AMPn -> AMPm) /LINEx

between the units stated in the

SYS_ALM117 FSSB DISCONNECTION (AMPn -> SDU m) /LINEx

parentheses.

SYS_ALM118 FSSB DISCONNECTION (SDU n -> AMP m) /LINEx

SYS_ALM119 FSSB DISCONNECTION (SDU n -> SDU m) /LINEx

<Countermeasures>

Replace the servo card, amplifier, or

separate detector interface unit of interest.

It is also likely that there may be a problem

on an optical fiber cable between the

connections of interest.

SYS_ALM120 FSSB DISCONNECTION (MAIN <- AMP1) /LINEx

<Description>

SYS_ALM121 FSSB DISCONNECTION (MAIN <- SDU 1) /LINEx

No FSSB communication can be performed

SYS_ALM122 FSSB DISCONNECTION (AMPn <- AMPm) /LINEx

between the units stated in the

SYS_ALM123 FSSB DISCONNECTION (AMPn <- SDU m) /LINEx

parentheses.

SYS_ALM124 FSSB DISCONNECTION (SDU n <- AMP m) /LINEx

SYS_ALM125 FSSB DISCONNECTION (SDU n <- SDU m) /LINEx

<Countermeasures>

Replace the servo card, amplifier, or

separate detector interface unit of interest.

It is also likely that there may be a problem

on an optical fiber cable between the

connections of interest.

It is likely that there may be an abnormal

condition in the power supply for the

right-side unit stated in the parentheses.

Check to see if there is any abnormality in

the power supplied to the unit and if there is

any short-circuit in the cable of the motor or

encoder connected to the unit.

SYS_ALM126 SERVO AMP INTERNAL DISCONNECTION

<Description>

(AMPn) ->

/LINEx

Abnormal communication data was

SYS_ALM127 SERVO AMP INTERNAL DISCONNECTION

detected in the amplifier stated in the

(AMPn) <-

/LINEx

parentheses.

<Countermeasures>

Replace the amplifier of interest.

SYS_ALM129 ABNORMAL POWER SUPPLY

<Description>

(SERVO:AMPn) /LINEx

An abnormal condition was detected in the

SYS_ALM130 ABNORMAL POWER SUPPLY

power for the unit stated in the parentheses.

(SERVO:SDUn) /LINEx

<Countermeasures>

A voltage drop was detected in the power

supplied to the unit of interest. Check to see

if there is any abnormality in the power

supply or power supply cable and if there is

a voltage drop in the input power due to

surge current.

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10.TROUBLESHOOTING

B-64485EN/01

Message

Description and countermeasures

SYS_ALM134 FSSB LINE DATA ERROR

<Description>

(AMPn) > .. > MAIN /LINEx

Abnormal data was detected in the unit

SYS_ALM135 FSSB LINE DATA ERROR

stated in the parentheses.

(SDUn) > .. > MAIN /LINEx

<Countermeasures>

Replace the unit of interest. If an alarm is

issued even after the replacement, replace

the slaves previous to the unit of interest in

succession. If the alarm lingers, replace the

servo card (or additional axis board). It is

also likely that there may be a problem on

an optical fiber cable between the

connections of interest.

SYS_ALM138 FSSB OUT OF CORRECTION (MAIN <- AMPn) /LINEx

<Description>

SYS_ALM139 FSSB OUT OF CORRECTION (MAIN <- SDUn) /LINEx

A communication data error was detected

SYS_ALM140 FSSB OUT OF CORRECTION (AMPn <- AMPm) /LINEx

between the units stated in the

SYS_ALM141 FSSB OUT OF CORRECTION (AMPn <- SDUm) /LINEx

parentheses.

SYS_ALM142 FSSB OUT OF CORRECTION (SDUn <- AMPm) /LINEx

SYS_ALM143 FSSB OUT OF CORRECTION (SDUn <- SDUm) /LINEx

<Countermeasures>

Replace the right-side unit stated in the

parentheses. It is also likely that there may

be a problem on other unit or an optical

fiber cable between the connections of

interest.

SYS_ALM144 FSSB OUT OF CORRECTION (MAIN -> AMPn) /LINEx

<Description>

SYS_ALM145 FSSB OUT OF CORRECTION (MAIN -> SDUn) /LINEx

A communication data error was detected

SYS_ALM146 FSSB OUT OF CORRECTION (AMPn -> AMPm) /LINEx

between the units stated in the

SYS_ALM147 FSSB OUT OF CORRECTION (AMPn -> SDUm) /LINEx

parentheses.

SYS_ALM148 FSSB OUT OF CORRECTION (SDUn -> AMPm) /LINEx

SYS_ALM149 FSSB OUT OF CORRECTION (SDUn -> SDUm) /LINEx

<Countermeasures>

Replace the left-side unit stated in the

parentheses. It is also likely that there may

be a problem on other unit or an optical

fiber cable between the connections of

interest.

SYS_ALM150 SLAVE DMA BUS FAILURE (AMPn ) /LINEx

<Description>

SYS_ALM151 SLAVE DMA BUS FAILURE (SDUn ) /LINEx

An error was detected in a circuit in the unit

SYS_ALM152 SLAVE LSI DMA BUS FAILURE (AMPn ) /LINEx

stated in the parentheses.

SYS_ALM153 SLAVE LSI DMA BUS FAILURE (SDUn ) /LINEx

SYS_ALM154 SLAVE LOCAL ERROR NO.1 (AMPn ) /LINEx

<Countermeasures>

SYS_ALM155 SLAVE WATCH DOG ALARM (AMPn ) /LINEx

Replace the unit of interest.

SYS_ALM156 SLAVE LOCAL ERROR NO.2 (SDUn ) /LINEx

SYS_ALM157 SLAVE LOCAL ERROR NO.3 (AMPn ) /LINEx

SYS_ALM158 SLAVE LOCAL ERROR NO.3 (SDUn ) /LINEx

SYS_ALM159 SPINDLE RAM FAILURE (AMPn) /LINEx

SYS_ALM160 SPINDLE WATCH DOG ALARM (AMPn) /LINEx

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B-64485EN/01

10.TROUBLESHOOTING

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

If a system alarm (SYS_ALM194, 195, 196, 197) and alarm number (PCxxx) stated below are displayed,

the system alarm is related to PMC, I/O Link i, or I/O Link. A probable cause is a faulty PMC control

circuit, an abnormal condition in I/O Link communication, or the like.

SERIES 30I GXXXX

SYS_ALM197 EMBEDDED SOFTWARE SYSTEM ERROR

PLEASE CHECK THE FOLLOWING INFORMATION:

2010/04/18 12:00:00

EMBEDDED SOFTWARE SYSTEM ERROR:(40xx-xxxx)

PC097 LADDER CRC ERROR (DCSPMC)

-----< ERROR POSITION >-------------------------------

CPU CARD

------------------------------------------------------

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10.TROUBLESHOOTING

B-64485EN/01

System alarms 197, 199 (PMC general)

These alarms are PMC system alarms. See Appendix A.2.2, “PMC System Alarm Messages” for alarm

descriptions.

Display examle

SERIES 30I GXXXX

SYS_ALM197 EMBEDDED SOFTWARE SYSTEM ERROR

PLEASE CHECK THE FOLLOWING INFORMATION:

2010/04/18 12:00:00

EMBEDDED SOFTWARE SYSTEM ERROR:(40xx-xxxx)

PC097 LADDER CRC ERROR (DCSPMC)

-----< ERROR POSITION >-------------------------------

CPU CARD

------------------------------------------------------

PAGE UP OR DOWN (PAGE 1 / 5)

System alarm 197 display

SERIES 30I GXXXX

SYS_ALM199 NON MASK INTERRUPT

OTHER-CPU

2010/04/18 12:00:00

PROGRAM COUNTER

: _________

ACT TASK

: _________

ACCESS ADDRESS

: ____-____

ACCESS DATA

: ____-____

ACCESS OPERATION : ____-____

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

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

+

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

PAGE UP OR DOWN (PAGE 1 / 5)

System alarm 199 display (page 1)

- 576 -

10.TROUBLESHOOTING

B-64485EN/01

System alarm 196 (PMC watchdog)

This alarm is a PMC watchdog system alarm. See Appendix A.2.2, “PMC System Alarm Messages” for

alarm descriptions.

Display example

SERIES 30I GXXXX

SYS_ALM196 PMC WATCH DOG ALARM

MAIN BOARD

2010/04/18 12:00:00

EMBEDDED SOFTWARE SYSTEM ERROR:(40xx-xxxx)

PC073 WATCH-DOG ALARM(CNC<->PMC)

-----< ERROR POSITION >-------------------------------

MAIN BOARD

------------------------------------------------------

PAGE UP OR DOWN (PAGE 1 / 5)

- 578 -

B-64485EN/01

10.TROUBLESHOOTING

SERIES 30I GXXXX

SYS_ALM194 IO LINK I ALARM

IO LINK I

2008/11/18 12:00:00

EMBEDDED SOFTWARE SYSTEM ERROR(40XX-XXXX)

PC053 I/O LINK I

SLAVE LSI RAM PARITY ERROR

-----< ERROR POSITION >-------------------------------

CH1 / UNIT3(GROUP2) : I/O UNIT-A

------------------------------------------------------

MA=03,FF,00,00,00,80 ME=00,00 GE=10,00 TOC=02 TTOC=05

RT=0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0

G02 RC=03 RT=05 H=00001000,00001000,00001000,00000000

PAGE UP OR DOWN (PAGE 1 / 5)

Hardware failure display for the third unit (group 2) on channel 1

SERIES 30I GXXXX

SYS_ALM194 IO LINK I ALARM

IO LINK I

2008/11/18 12:00:00

EMBEDDED SOFTWARE SYSTEM ERROR(40XX-XXXX)

PC058 I/O LINK I

SLAVE LSI EXTERNAL ALARM

-----< ERROR POSITION >-------------------------------

CH1 / UNIT3(GROUP2) : I/O UNIT-A

------------------------------------------------------

MA=03,FF,00,00,00,80 ME=00,00 GE=10,00 TOC=02 TTOC=05

RT=0,0,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0

G02 RC=03 RT=05 H=00001000,00001000,00001000,00000000

G03 RC=03 RT=05 H=00001000,00001000,00001000,00000000

PAGE UP OR DOWN (PAGE 1 / 5)

Connection failure display for the third safety I/O unit (group 2 and 3) on channel 1

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