Mitsubishi Electric M600 Series Maintenance Manual
Below you will find brief information for CNC M600 Series. The CNC M600 Series is a powerful and versatile CNC control system designed for a wide range of applications. It features a user-friendly interface, advanced programming capabilities, and robust performance. The CNC M600 Series is perfect for applications requiring high precision and accuracy, as well as for those requiring complex machining operations. The system supports a wide range of machine tools, including lathes, mills, and machining centers. The CNC M600 Series is a reliable and dependable control system that can help you improve your productivity and efficiency.
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M600 Series
MAINTENANCE MANUAL
BNP-B2189B (ENG)
Precautions for Safety
Always read the specifications issued by the machine maker, this manual, related manuals and attached documents before installation, operation, programming, maintenance or inspection to ensure correct use. Understand this numerical controller, safety items and cautions before using the unit.
This manual ranks the safety precautions into "Danger", "Warning" and "Caution".
DANGER
WARNING
CAUTION
When the user may be subject to imminent fatalities or major injuries if handling is mistaken.
When the user may be subject to fatalities or major injuries if handling is mistaken.
When the user may be subject to injuries or when physical damage may occur if handling is mistaken.
Note that even items ranked as " CAUTION" may lead to major results depending on the situation. In any case, important information that must always be observed is described.
DANGER
There are no "Danger" items in this manual.
WARNING
1. Items related to prevention of electric shocks
Do not operate the switches with wet hands, as this may lead to electric shocks.
Do not damage, apply excessive stress, place heavy things on or sandwich the cables, as this may lead to electric shocks.
CAUTION
1. Items related to noise
Always treat the shield cables indicated in this manual with grounding measures such as cable clamps.
Separate the signal wire from the drive line/power line when wiring.
2. Items related to installation
Install each unit on noncombustible material. Installation directly on or near combustible material may lead to fires.
Always observe the installation direction.
Do not install or operate units that are damage or that have missing parts.
Do not allow conductive foreign matter such as screw or metal chips or combustible foreign matter such as oil enter each unit.
Each unit is a precision device so do not drop or apply strong impacts on the device.
Install at a position where cutting oil will not get on the NC Card.
(Continued on next page)
CAUTION
3. Items related to connection
Do not apply voltages other than those indicated in this manual on the conductor.
Doing so may lead to destruction or damage.
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
When using an inductive load such as relays, always connect a diode in parallel to the load as a noise measure.
When using a capacitive load such as a lamp, always connect a protective resistor serially to the load to suppress rush currents.
Do not connect or disconnect the connection cables between each unit while the power is
ON.
Do not connect or disconnect the PCBs while the power is ON.
4. Items related to battery
If the battery low warning is issued, save the machining programs, tool data and parameters in the input/output device, and then replace the battery.
Do not short circuit, charge overheat, incinerate or disassemble the battery.
Dispose of spent batteries according to local laws.
CONTENTS
1. OUTLINE ................................................................................................................................. 1
1.1 System Configuration .................................................................................................. 1
1.1.1 Outline drawing ................................................................................................... 1
1.1.2 System outline drawing ....................................................................................... 2
1.1.3 Configuration ....................................................................................................... 3
2. EXPLANATION OF MODULE FUNCTIONS ....................................................................... 6
2.1 HR111 Card ................................................................................................................ 6
2.2 HR121 Card ................................................................................................................ 8
2.3 HR081 Card ................................................................................................................ 10
2.4 HR841 Card ................................................................................................................ 12
2.5 HR273 Card ................................................................................................................ 13
2.6 HR371 Card ................................................................................................................ 14
2.7 HR325, 327, 335, 337 Cards ...................................................................................... 15
2.8 Floppy Disk ................................................................................................................. 17
3. TROUBLESHOOTING ......................................................................................................... 18
3.1 List of Unit LEDs ......................................................................................................... 18
3.2 Troubleshooting .......................................................................................................... 20
3.2.1 Confirmation of trouble state ............................................................................... 20
3.2.2 When in trouble ................................................................................................. 21
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE................. 27
4.1 Maintenance Tools...................................................................................................... 27
4.2 Maintenance Items...................................................................................................... 28
4.3 Replacement Methods ................................................................................................ 29
4.3.1 Cable ................................................................................................................... 29
4.3.2 Durable parts ....................................................................................................... 31
(1) Battery................................................................................................................... 31
(2) Backlight ............................................................................................................... 32
(3) Cooling fan ............................................................................................................ 33
(4) Hard disk (HDD).................................................................................................... 34
(5) Floppy disk (FDD) ................................................................................................. 37
4.3.3 Unit ...................................................................................................................... 38
(1) Control unit............................................................................................................ 38
(2) Control section ...................................................................................................... 39
(3) Display section (LCD panel) ................................................................................. 40
(4) Base I/O unit ......................................................................................................... 41
(5) External power supply unit (PD25)........................................................................ 42
(6) PCMCIA card ........................................................................................................ 43
(7) Keyboard............................................................................................................... 44
4.3.4 Control PCB......................................................................................................... 45
(1) Control section power supply PCB (HR081) ......................................................... 45
(2) PCMCIA interface PCB (HR841) .......................................................................... 46
(3) Backlight power supply PCB ................................................................................. 47
(4) LCD signal interface PCB (HR273)....................................................................... 48
(5) Expansion PCB ..................................................................................................... 49
(6) Cassette memory .................................................................................................. 50
(7) Card-sized I/O (HR361, HR371) ........................................................................... 51
4.4 Cleaning and Handling................................................................................................ 52
4.4.1 Escutcheon.......................................................................................................... 52
4.4.2 Floppy disk drive ................................................................................................. 52
4.4.3 Hard disk ............................................................................................................. 55
4.4.4 LCD panel ........................................................................................................... 55
4.4.5 PCMCIA card....................................................................................................... 56
1. OUTLINE
1.1 System Configuration
1. OUTLINE
1.1 System Configuration
1.1.1 Outline drawing
The basic configuration of the M600 system is that with the control section attached to the LCD display section.
– 1 –
1.1.2 System outline drawing
1. OUTLINE
1.1 System Configuration
With the M600 system, connections are made with the drive section through a remote I/O separated from the control section as shown below.
Control section
External power supply PD25
Display section
24VDC
LCD
200VAC
Base I/O unit
HR325/327/335/337
I/O INTERFACE
Operation section
Remote I/O unit
Machine electric cabinet
Card-sized I/O
HR371
Machine electric cabinet
Servo drive unit/spindle drive unit
Servomotor / spindle motor
– 2 –
1. OUTLINE
1.1 System Configuration
1.1.3 Configuration
(1) Module configuration table
The M600 system is configured of the modules shown below.
No.
1
Type Configuration module type
Control section
6MU001
HR111 card
HR121 card
Function
Main CPU card
Man-machine interface card
HR081 card
CARD PC
Control power supply card
Man-machine
Remarks
Mounted on HR121
ER6 BKO-NC2157H01
MMF-04B05DM-R
Chassis
Frame
Cover
2 Display section
6MB201
KCS6448HSTT-X3
HR273 card
Battery
DC fan
LCD STN display
Mounted on HR081
Mounted on HR111
Aluminum die cast
Molded resin part
Molded resin part
KCI-04
F082 cable
STN signal relay PCB
Backlight power supply
HR081- backlight power supply
HR121-HR273
3 PCMCIA I/F
6PCM01
KS-6MB201A-P
Escutcheon
HR841 card
HR273-LCD
HR273-LCD
PCMCIA I/F
HR121-HR841
Built-in control section
– 3 –
1. OUTLINE
1.1 System Configuration
No. Type
unit
FCU6-HD101
-1
5 Single supply parts
Configuration module type
F140 cable
External HDD installation fitting & cover
Damping rubber
PD25
HR371 card
HR325 card
HR335 card
HR327 card
HR121-HDD
With heater
Function Remarks
External power supply
Card-sized I/O
Base I/O unit
HR121-FDD
Source method
Sink method
Sink method
Source method
Source method
4 pieces
Di: 16 points
Do: 16 points
Di: 48 points
Do: 48 points
Di: 64 points
Do: 64 points
Di: 48 points
Do: 48 points
Di: 64 points
Do: 64 points
– 4 –
1. OUTLINE
1.1 System Configuration
(2) Control section module configuration
HR841 card
PC card
HR111 card
ＦＡＮ
F150 cable
Expansion card
ＦＡＮ
CARD ＰＣ
Cassette memory
HR121 card
HR081 card
HR121 card
HR841 card
ＦＡＮ
F150 cable
– 5 –
2. EXPLANATION OF MODULE FUNCTIONS
2.1 HR111 Card
2. EXPLANATION OF MODULE FUNCTIONS
2.1 HR111 Card
[Block diagram]
RISC
DRAM
Cassette memory
CBUS#1
MAC401
CPU peripheral control
PLC operation
Cassette memory
(for maintenance)
CBUS#2
FLROM
SRAM
MAC402
External I/O interface
RT#0 on PC base
RT#1 on expansion I/O
RT#2
ＣＦ１０
To I/O card
ENC#2
ＣＦ１１
To operation board
[Explanation of functions]
The HR111 card is the main CPU of the M600 system, and has the following functions.
CPU
ASIC
Memory
64-bit RISC chip
CPU peripheral control & PLC operation (MAC401)
External I/O interface (MAC402)
DRAM
FLROM
SRAM
For system working
For system ROM & boot ROM
For machining program and parameter backup
Cassette I/F
RT bus
I/O interface
CBUS #1 connector For cassette memory
CBUS #2 connector For cassette memory (for maintenance)
RT #0 connector For man-machine interface card (HR121)
RT #1/#2 connector For expansion card
Power supply AVR connector interface
CF10 connector RIO 2ch, servo 2ch, encoder 1ch, skip 8 points
For control power supply (HR081)
Operation board CF11 connector interface
Key scan, RIO, handle 3ch, RS-232-C 2ch
– 6 –
2. EXPLANATION OF MODULE FUNCTIONS
2.1 HR111 Card
[Connector layout diagram]
AVR
DC fan (for 5V)
CBUS#1 CBUS#2
RT#2 RT#1 RT#0
CF10
TEST1&2
ENC#2
WDER
NCLD1
NCSYS
0
NCRST CF11
ISP
TEST 1 & 2 : Test pins for maintenance and service
NCREST : NC reset (do not press during normal system operation)
[Explanation of settings]
NCSYS: System mode selection rotary switch
Switch Mode
0 Standard mode
Details
Operation of system 1
1 PLC stop The system is started while the PLC is stopped.
2
3
5
6
7 SRAM mode The system parameter area is cleared.
8
9
A
B
(The cassette memory must be
C connected to the CBUS #2 connector.)
D
E
F
[Explanation of LEDs]
NCLD1 : 7-segment system status display LED
WDER : Watch dog error LED (red) Refer to section 3.1 for details.
– 7 –
2. EXPLANATION OF MODULE FUNCTIONS
2.2 HR121 Card
2.2 HR121 Card
[Block diagram]
RT-BUS
2-port RAM
ISA-BUS
ＣＡＲＤ ＰＣ
LCD
10.4-inch color LCD
TFT/STN
CF12
HDD
General purpose serial
RS-232-C I/F
2ch
Mouse input
Full keyboard input
2.5inch ＨＤＤ
CFD
3.5ｉｎｃｈ ＦＤＤ
[Explanation of functions]
The HR121 card is the man-machine interface for the M635/M655 system, and has the following functions.
2-port RAM
Card PC I/F
ISA bus I/F
For data transmission/reception
CARDPC connector For the card PC
ISA connector For PCMIA card HR841 connection
Floppy disk I/F
Hard disk I/F
CFD connector
HDD connector
General purpose serial I/F CF12 connector
Mouse input I/F CF12 connector
For 3.5-inch FDD connection
For 2.5-inch HDD connection
RS-232-C specifications: 2ch
PS/2 compatible
Full keyboard I/F
Display output I/F
RTBUS I/F
CF12 connector
LCD connector
RTBUS connector
PS/2 compatible
For 10.4-inch color LCD TFT/STN
For HR111 card connection
– 8 –
2. EXPLANATION OF MODULE FUNCTIONS
2.2 HR121 Card
[Connector layout diagram]
ＣＡＲＤＰＣ
ＨＤＤ
ＰＣＲＳＴ ＨＤ
ＩＳＰ
ＣＦＤ
ＣＦ１２ ＬＣＤ
PCRST: Personal computer reset push-button switch
[Explanation of LEDs]
HD: Accessing hard disk LED (green) Refer to section 3.1 for details.
– 9 –
2. EXPLANATION OF MODULE FUNCTIONS
2.3 HR081 Card
2.3 HR081 Card
[Block diagram]
External power supply
24VDC/3A
DCIN
DC/DC
(24V/5V)
DC/DC
(24V/3.3V)
DC/DC
(24V/12V)
AVR
5V/5A
LG(GND)
3.3V/2A
LG(GND)
12V/1.2A
AG(GND)
Voltage detection circuit
EMG
Emergency stop switch
EMG
∗ signal generation circuit
EMG
∗ signal
From PD25 power supply
ACFAIL
CF01
Control signal circuit
FAIL
∗ signal
MLOCK
∗ signal
Voltage check for testing
External reset input
CHECK
5V
3.3V
12V
RST
∗ signal
Voltage detection circuit
PSRST
Backup battery BAT
Output voltage monitor
– 10 –
5VB
(3.6V/2,000mAh)
ER6
3.6V/2,000mA
Battery voltage detection circuit
BATALM1 signal
BATALM2 signal
CF02
LCD backlight power supply
BLON
∗ signal
[Explanation of functions]
The HR081 card is the multi-power supply for the M600 system, and has the following specifications.
Input voltage/current 24VDC
±5% : 3A
DCIN connector
Output voltage/current 3.3VDC:2A/5VDC:5A/12VDC:1.2A AVR
Input control signal Emergency stop switch signal
ACFAIL signal
Backup battery
(lithium battery 3.6VDC: 2000mAh)
EMG connector
CF01 connector
BAT connector
Output control signal
External reset signal CHECK connector
Backlight ON/OFF, backlight power supply, CF02 connector
brightness
Fan power supply (24VDC: 120mA) FAN connector
CHECK connector
2. EXPLANATION OF MODULE FUNCTIONS
2.3 HR081 Card
[Connector layout diagram]
This connector is not used.
ＦＡＮ
ＢＡＴ
DC output OUT
Control signal IN/OUT
Battery
ＣＨＥＣＫ
１
ＰＢ１
５：ＧＮＤ
４:External reset input
３：３．３Ｖ
２：１２Ｖ
１：５Ｖ
ＰＳＲＳＴ
ＣＦ０２ ＥＭＧ ＣＦ０１
ＤＣＩＮ
ＬＥＤ
ＤＣＩＮ
ＤＣＯＵＴ
ＰＳＥＭＧ
ＢＡＴＡＬＭ
12VDC output for LCD backlight 24VDC input
EMG input ACFAIL input
PSRST: System reset (do not press during normal system operation)
[Explanation of LEDs]
DCIN : LED lit during 24VDC supply (green)
DCOUT : LED lit during internal power supply output (green)
PSEMG : Power supply emergency stop (red)
BATALM : Battery drop warning (red)
Refer to section 3.1 for details.
– 11 –
2. EXPLANATION OF MODULE FUNCTIONS
2.4 HR841 Card
2.4 HR841 Card
[Block diagram]
ＩＳＡ
ＰＣＭＣＩＡ
To HR121 ISA bus Bus controller gate array
Power supply changeover circuit
[Explanation of functions]
The HR841 card is an interface with the M635 /M655 system's IC memory card, I/O card and ISA bus that comply with the PCMCIA (Personal Computer Memory Card International Association)
2.1 and JEIDA 4.2 standards.
ISA bus
→ PCMCIA conversion : bus controller gate array
IC card slot : 2 slots
[Connector layout diagram]
PCMCIA
<Specifications of card corresponding with PCMCIA slot>
1) Limited to 5V specification products. (3.3V specifications cannot be used.)
2) The max. current consumption is limited to 1A/slot.
3) Mitsubishi Electric recommended IC card
– 12 –
2.5 HR273 Card
[Block diagram]
ＬＣＤ
2. EXPLANATION OF MODULE FUNCTIONS
2.5 HR273 Card
ＣＮ１
VR1
Booster circuit
ＣＮ２
(1.7∼2.4V)
ＣＮ３
(26∼28V)
[Explanation of functions]
The HR273 card is the interface for the STN-LCD signals of the M600 system, and has the following specifications.
Voltage booster circuit
STN-LCD signal
Contrast voltage output
Contrast voltage fine adjustment potentiometer
Contrast voltage
LCD connector
CN1/CN2 connector
CN3 connector
VR1
Input: 1.7 to 2.4V, Output: 26 to 28V
HR121 side
STN-LCD side
The contrast voltage has been set before shipment, and thus does not require adjustment.
The contrast can be adjusted from the keyboard on the display screen.
If the display does not appear, turn the potentiometer to the left and right to confirm the screen.
[Connector layout diagram]
STN-LCD
VR1
HR121
-LCD
CN3
Contrast voltage output
– 13 –
2.6 HR371 Card
[Block diagram]
2. EXPLANATION OF MODULE FUNCTIONS
2.6 HR371 Card
16
16
ＣＦ３０
Di:16 points
Do:16 points
ＤＯ I/F
ＭＡＣ３０３
Remote communication to NC
ＤＩ I/F
３
Channel No. data
(connector slot setting 0 to 7)
+5V
+24V
LG
Power supply
[Explanation of functions]
The HR371 card is the source specification card-sized I/O for the M600 system. This card is used while connected to the machine electric cabinet.
Up to eight remote cards can be connected per system. The functions for each card are as follow.
MAC303
Channel No. data
Machine input interface
Machine output interface
Power supply
Remote I/O controller
The channel No. can be set between 0 and 8 with the level information of the three pins from the connection designation.
16-point insulated type
16-point non-insulated type
24VDC
±5%/5VDC±5%
CF30 connector
5IN RAL
[Explanation of LEDs]
5IN (left side) : LED lit during 5VDC circuit power supply (green)
RAL (right side) : Remote communication alarm (red) Refer to section 3.1 for details.
– 14 –
2. EXPLANATION OF MODULE FUNCTIONS
2.7 HR325, 327, 335, 337 Cards
2.7 HR325, 327, 335, 337 Cards
[Block diagram]
Connection with control section
ＣＦ１０
32-point machine input
32-point machine output
ＣＦ３３
32-point machine input
ＣＦ３１
ＣＦ３２
Ｄｉ
I/F
Ｄｏ
I/F
Ｄｉ
I/F
MAC303
MAC303
32-point machine output
ＣＦ３４
Ｄｏ
I/F
SKIP I/F:
8 points
ＡＶＲ
５Ｖ←２４Ｖ
ＳＶ１
System 1 servo
ＳＶ２
System 2 servo
ＥＮＣ
Auxiliary encoder input
ＳＫＩＰ
Skip input
ＲＩＯ１
RIO No. 1 system
ＲＩＯ２
RIO No. 2 system
ＤＣＩＮ
24VDC input
ＣＲ３１
Add-on card
[Explanation of functions]
The HR325, 327, 335, 337 cards are the base I/O units for the M600 system. These are used as a one-on-one connection with control section.
The HR325 and 327 have the sink specifications, and the HR335 and 337 have the source specifications. The card with 5 as the last digit have a 48-point machine input and 48-point machine output. The functions are as follow.
MAC303 Remote I/O controller Occupies 2 channels
(Connected to RIO NO. 1 system)
Remote I/F channel No. RIO1, 2 connector Max. 8 channels for each of the two setting systems.
Set with the rotary switches CS1 and CS2.
Machine input interface CF31/32 connector Insulated type
HR325/335: 48 points
HR327/337: 64 points
Machine output interface
Skip input I/F relay plug
Add-on card I/F
Power supply
CF33/34 connector
SKIP connector
SV1, SV2 connector
ENC1 connector
CR31 connector
24VDC
±5%:6Amax
Non-insulated type
HR325/335: 48 points
HR327/337: 64 points
Insulated type: 8 points
Servo amplifier connection: 2 systems
Auxiliary encoder connection: 1 ch
RX32O card connection is possible
When using machine output:
60mA/point
– 15 –
2. EXPLANATION OF MODULE FUNCTIONS
2.7 HR325, 327, 335, 337 Cards
[Connector layout diagram]
CS2 CS1
CR31
RIO
24IN
RAL1
5OUT
RAL2
LED
[Explanation of settings]
CS1: Onboard RIO No. 1 channel No. setting rotary switch
CS2: Onboard RIO No. 2 channel No. setting rotary switch
<Setting method>
0 to 7 : Corresponds to channel Nos. 0 to 7
8 and following : Loop back test mode (for testing)
∗ The CS1 and CS2 settings must always be different for the HR325, 327, 335 and 337 cards.
Always set different channel Nos. for each remote unit and add-on card connected to the same system. Up to eight channels can be set per system.
[Explanation of LEDs]
24IN (upper side) : LED lit during supply of 24VDC (green)
5OUT (upper side) : LED lit during output of 5VDC circuit power (green)
RAL1 (lower side) : Onboard RIO No. 1 channel communication alarm (red)
RAL2 (lower side) : Onboard RIO No. 2 channel communication alarm (red)
Refer to section
3.1 for details.
– 16 –
2. EXPLANATION OF MODULE FUNCTIONS
2.8 Floppy Disk
2.8 Floppy Disk
The FDD used in the M600 system has the following specifications. This FDD is compatible with the
2HD (2MB/1.6MB) and 2DD (1MB) recording types.
[FD-235HG-7332 specifications]
Applicable safety standards UL, CAS, TUV
Operation mode
Applicable disk (3.5-inch)
Unformatted data capacity
Working power supply
2MB mode recording/play
High density (2HD)
2M byte
1.6MB mode recording/play
1MB mode recording/play
High density (2HD) Normal density (2DD)
1.6M byte 1M byte
Single-phase 5V [4.5 to 5.5V]
[Setting layout]
The settings of the FDD must be changed according to the mode being used. The settings for each mode are explained below.
Setting pin
１
２
３
４
ＨＡ ＲＹ３４
ＤＳ3 ＤＳ2
ＡＣＤ
ＩＲ
ＡＣＤ
（
Ａ
）
ＲＥＮ ＩＵ４
Ｇ Ｆ
ＦＧ
Ｅ Ｄ Ｃ Ｂ Ａ
[Explanation of settings]
１
２
３
４
Ｇ Ｆ Ｅ Ｄ Ｃ Ｂ Ａ
Setting name
HA
RY34
DC34
DS0
DS1
DS2
DS3
IR
ACD
Function
1MB mode automatic setting
(this is always ON in the 3-mode specifications)
READY output enable
DISK CHANGE output enable
DRIVE SELECT 0 input enable
DRIVE SELECT 1 input enable
DRIVE SELECT 2 input enable
DRIVE SELECT 3 input enable
LED lighting conditions :
DRIVE SELECT
∗READY state
Automatic chucking disable
IU4 IN use input enable
– 17 –
3. TROUBLESHOOTING
3.1 List of Unit LEDs
(1) NC control section
3. TROUBLESHOOTING
3.1 List of Unit LEDs
CBUS1 CBUS2
OPEN
PC
RS T
DCIN
DCOUT
PSEMG
BATALM
CF12
CFD
HD
LCD
ENC2
WD
ER
NC
LED
NC
S Y S
NC
RS T
CF11
CF10
[Explanation of LED functions]
DCIN During 25VDC supply Green
DCOUT
During internal power output
Green
Status
When normal During error
Lit Not lit
Correspondence for error
Refer to section 3.2.2 (1) lit
PSEMG
Power supply emergency stop
Red
BATALM Battery drop warning Red
WDER Watch dog alarm
7-segment system
NCLED status display
Red
Not lit
Not lit
Not lit
Lit
Lit
Lit
According to system state
HD Accessing hard disk Green
Flickers during access
Refer to section 3.2.2 (1)
Refer to section 4.3.2 (1)
Refer to section 3.2.2 (5)
Refer to section 3.2.2 (4)
– 18 –
(2) Base I/O unit, card-sized I/O
3. TROUBLESHOOTING
3.1 List of Unit LEDs
Base I/O unit
CS2
CS1
CR31
RIO2 RIO1 DCIN
24IN
RAL1
5OUT
RAL2
Card-sized I/O
5IN RAL
[Explanation of LED functions]
Name Function Color
24IN During 24VDC input supply
RAL2
5IN
RAL
Onboard I/O No. 2 channel communication alarm
During card-sized I/O 5VDC input supply
Card-sized I/O communication alarm
Green
5OUT During 5VDC circuit power output Green
RAL1
Onboard I/O No. 1 channel communication alarm
Red
Red
Green
Red
Status
When normal During error
Lit
Lit
Not lit
Not lit
Not lit
Not lit
Not lit
Lit
Lit
Lit
Correspondence for error
Refer to section 3.2.2 (7)
Lit Not
±5% voltage supply
Refer to section 3.2.2 (7)
– 19 –
3. TROUBLESHOOTING
3.2 Troubleshooting
3.2 Troubleshooting
3.2.1 Confirmation of trouble state
Confirm "when", "when doing what", and "what kind of" trouble occurred.
(1) When?
What time did the trouble occur?
(2) When doing what?
What was the NC operation mode?
• During automatic operation ......... Program No., sequence No. and program details when the trouble occurred.
• During manual operation ............. What was the manual operation mode?
What was the operation procedure?
What were the previous and next steps?
• What was the setting and display unit screen?
• Did the trouble occur during input/output operations?
• What was the machine side state?
• Did the trouble occur while replacing the tools?
• Did hunting occur in the control axis?
(3) What kind of trouble?
• What was displayed on the setting and display unit's Alarm Diagnosis screen?
Display the Alarm Diagnosis screen, and check the alarm details.
• What was displayed for the machine sequence alarm?
• Is the LCD screen normal?
• When did the trouble occur? What was the frequency? (Does it occur when other machines are operating?) If the trouble occurs infrequently or if it occurs during the operation of another machine, there may be an error in the power voltage or the trouble may be caused by noise, etc. Check whether the power supply is normal (does it drop momentarily when other machines are operating?), and whether noise measures have been taken.
• Does the trouble occur during a specific mode?
• Does the trouble occur when the overhead crane is operating?
• What is the frequency in the same workpiece?
• Check whether the same trouble can be repeated during the same operation.
• Check whether the same trouble occurs when the conditions are changed. (Try changing the override, program details, and operation procedures, etc.)
• What is the ambient temperature?
(Was there a sudden change in the temperature? Was the fan at the top of the control unit rotating?)
• Is there any contact defect or insulation defect in the cables?
(Has any oil or cutting water splattered onto the cables?)
– 20 –
3. TROUBLESHOOTING
3.2 Troubleshooting
3.2.2 When in trouble
If the system does not operate as planned or if there is any trouble in the operation, confirm the following points and then contact the Mitsubishi Service Center.
– Examples of trouble –
• The power is not ON.
• The power turns OFF.
• The screen does not appear.
• The operation keys do not function.
• The HDD does not function.
• The FDD does not function.
• Machining is not possible.
[Precautions]
If the outdoor temperature is 5
°C or less, the NC may not start up. However, warmup operation is carried out by warming up the HDD with the heater to protect the HDD from low temperatures.
Check the warmup operation sign with the LEDs on the operation board. (Refer to the operation board manual issued by each machine maker.)
The NC will start up automatically when the warmup operation is completed.
– 21 –
3. TROUBLESHOOTING
3.2 Troubleshooting
(1) Problems related to the power supply
The power does not turn ON.
Cause
The power cord is disconnected or loose.
Remedy
Check the cable between the NC unit and the external power supply, and between the external power supply and socket. Make sure that the cable is inserted securely.
Check that there are no wires broken in the cable. If broken, replace the cable.
The door interlock is applied.
There is a problem in the power socket.
If the control panel door is not completely closed, close it.
If the door interlock is applied even when the door is closed, the door interlock circuit is damaged. Repair it.
If the socket has a switch, turn the switch ON.
Make sure that the specified power voltage and power frequency is being output from the socket.
The external power supply is faulty.
Check that the power can be turned ON with just the external power supply.
Note) Depending on the external power supply being used, the power may not turn ON in the no-load state, so install a slight load and check.
The ON/OFF cable is short circuited.
Disconnect the ON/OFF cable and check that it is not short circuited. If short circuited, replace the cable.
The external power supply's input voltage is not as specified.
+10
Check that the input voltage is within 200 to 230VAC %.
The external power turns ON but the NC control power does not turn ON.
Cause Remedy
The external power supply output is not correct.
Disconnect the cable between the NC unit and the external power supply, and check that the external power supply output is normal.
Wire the cable between the NC unit and external power supply, and check that the external power supply output is normal.
The cable connected from the NC unit to the peripheral device is short circuited.
Disconnect the cable connected to the peripheral device one at a time and check that the power turns ON. Check that there are no short-circuited cables.
There is a short circuit in the configuration card.
Remove the removable cards one at a time and check that the power turns ON.
Check that there are no short-circuited cards. Refer to section 4.3.3 for the removable cards.
CAUTION
Do not apply voltages other than those indicated in this manual on the connector.
Doing so may lead to destruction or damage.
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not connect or disconnect the connection cables between each unit while the power is
ON.
Do not connect or disconnect the PCBs while the power is ON.
– 22 –
3. TROUBLESHOOTING
3.2 Troubleshooting
The power turns OFF.
Cause
There is a problem in the power socket.
Remedy
Check whether the voltage fluctuates at certain time zones.
Check whether an instantaneous power failure has occurred.
A problem occurs when the peripheral device starts operating.
Check whether the voltage drops instantaneously when the peripheral device operation starts.
The PSEMG (red) LED on the HR081 card lights.
Cause
The emergency stop switch connected to the EMG connector is ON (A contact), or the EMG connector is disconnected.
Remedy
Set the emergency stop switch to the release (B contact) state. Check the connection to the EMG connector.
The BATALM (red) LED on the HR081 card lights.
Cause
The LED lights when the voltage of the battery connected to the
HR81 BAT connector has dropped to 2.6V
± 0.065V or less.
Remedy
Refer to section 4.3.2 (2) and replace the battery.
(2) Problems related to display section
The LCD screen does not appear.
Cause Remedy
The power is not supplied to the backlight power for the display section.
The connection from the LCD display to the backlight power is disconnected.
The F090 cable is not connected to the HR121 card LCD connector and HR273 card LCD connector.
The connection from the HR273 card and the LCD display is disconnected.
Check that the F082 cable is connected to the control section's power supply HR081 CF02 connector and backlight power.
Check that the wiring from the LCD display is connected to the backlight power.
Check that the F090 cable is connected.
Check that the wiring from the LCD display is connected to the HR273 card.
The LCD display, backlight power or HR121 card is damaged.
Check the cable connections. If normal, the individual module may be damaged. Contact the Mitsubishi Service
Center.
CAUTION
Do not apply voltages other than those indicated in this manual on the connector.
Doing so may lead to destruction or damage.
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not connect or disconnect the connection cables between each unit while the power is
ON.
Do not connect or disconnect the PCBs while the power is ON.
– 23 –
3. TROUBLESHOOTING
3.2 Troubleshooting
The LCD display is dark and the characters are not visible. The display is light and the characters are not visible.
Cause
The contrast voltage is not correctly adjusted.
Remedy
Turn the contrast voltage fine adjustment potentiometer
VR1 on the HR273 card, mounted on the rear of the display, to the left and right, and check that the screen appears correctly.
The LCD screen characters are light and hard to read.
Cause Remedy
The LCD contrast deviated due to changes in the ambient temperature.
Adjust the contrast on the display's contrast adjustment screen.
The LCD screen is disturbed and cannot be synchronized, or the characters are unrecognizable.
Cause
The card PC or HR121 card is damaged.
Remedy
Contact the Mitsubishi Service Center.
(3) Problems related to operation section
A specific key switch does not function.
Cause Remedy
All key inputs do not function.
Cause
The F050 cable connected between the operation section key switches and the control section is disconnected.
Remedy
Check the F050 cable connection.
The circuit in the HR111 card is faulty.
Contact the Mitsubishi Service Center.
The action differs from the operation.
Cause
CAUTION
Remedy
Do not apply voltages other than those indicated in this manual on the connector.
Doing so may lead to destruction or damage.
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not connect or disconnect the connection cables between each unit while the power is
ON.
Do not connect or disconnect the PCBs while the power is ON.
– 24 –
3. TROUBLESHOOTING
3.2 Troubleshooting
(4) Problems related to HDD
The message "Non System Disk Error" appears when the system is started.
Cause Remedy
The HDD connection connector is disconnected.
Check the connection state of the HDD cable F140.
When the FDD was connected, a disk other than the system disk was inserted.
Remove the disk from the FDD and restart.
If the heat up lamp on the operation section is lit, the warmup operation to protect against low temperatures is being carried out.
Wait for the HDD warmup operation to be completed.
When none of the above causes apply:
Contact the Mitsubishi Service Center.
(5) Problems when starting the system
The NC does not start up correctly.
Cause
8 is displayed on the HR111 card's 7-segment display NCLD1.
Remedy
Check that the rotary switch NCSYS is set to 0.
E or F is displayed on the HR111 card's 7-segment display NCLD1.
Contact the Mitsubishi Service Center.
CAUTION
Do not apply voltages other than those indicated in this manual on the connector.
Doing so may lead to destruction or damage.
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not connect or disconnect the connection cables between each unit while the power is
ON.
Do not connect or disconnect the PCBs while the power is ON.
– 25 –
3. TROUBLESHOOTING
3.2 Troubleshooting
(6) Problems related to remote I/O
The communication alarm LED RAL is lit.
Cause Remedy
The remote connection cable is not connected. The cable has broken wires or the contact is defective.
Check the connection of the remote connection cable F010 with the NC control section or the cable SH41 between the remote I/Os.
The HR3OO card is defective. Contact the Mitsubishi Service Center, and then replace the card.
The power supply system LED is not lit.
Cause
The 24IN LED is not lit. (The input power is not being supplied.)
Remedy
Supply a +24V±5% voltage to the HR3OO card.
The 5OUT LED is not lit.
(The input power is not within the tolerable range, or the internal power is faulty.)
Check that the input voltage is not +20 V or less. If it is being supplied correctly, contact the Mitsubishi Service
Center.
CAUTION
Do not apply voltages other than those indicated in this manual on the connector.
Doing so may lead to destruction or damage.
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not connect or disconnect the connection cables between each unit while the power is
ON.
Do not connect or disconnect the PCBs while the power is ON.
– 26 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.1 Maintenance Tools
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND
MAINTENANCE
4.1 Maintenance Tools
The following measuring instruments are used to confirm that the voltage is being supplied correctly to the NC unit, to confirm that the wiring to the NC unit is correct, and to carry out simple troubleshooting.
Table 4.1 Maintenance tools
Tool Condition
Tester
Application
To check that the wiring to the NC unit is correct before turning the power ON.
AC voltmeter
Phase rotation meter
Synchroscope
Measure the AC power voltage.
The tolerable error is ±2% or less.
DC voltmeter Max. scale 30V.
The tolerable error is ±2% or less.
To measures the AC power voltage being supplied to the external 24VDC power supply unit.
To measure the DC power voltage. External power supply 24V (control section, machine input/output interface) Battery voltage HR081
DC output
To check the connection order of the AC
3-phase input power supply.
General measurement and simple troubleshooting
Note 1) Currently, a high precision digital multi-meter is commonly used as a tester. This digital multi-meter can be used as both an AC voltmeter and an DC voltmeter.
Note 2) A logic analyzer (200MHz or more) is required for complicated troubleshooting.
(2) Tools
Screwdriver (large, medium, small)
Radio pliers
– 27 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.2 Maintenance Items
4.2 Maintenance Items
Maintenance is categorized into daily maintenance items (items to be carried at set intervals) and periodic maintenance (replacement of parts when life is reached).
Some parts (HD, FDD, etc.) will not function in a hardware manner when the life is reached, so these should be replaced before the life is reached.
Table 4.2 List of maintenance items
Class Name
Daily maintenance
Escutcheon
Cleaning of floppy disk unit (type built in operation box)
Periodic maintenance
Replacement of floppy disk (type built in operation box)
3
× 10 6
Replacement of floppy disk drive (type built in operation box)
12,000 access hours or 5 years of
FDD motor rotation, whichever is sooner
Replacement of hard disk drive
5 years or 20,000 power ON hours, whichever is sooner
LCD display unit
(backlight)
(Accordingly when dirty)
Once/two months
Refer to left.
Refer to left.
Battery
(lithium battery)
10,000 hr (specified with power ON time where brightness drops to less than
50%)
Cumulative data hold time
45,000 hr
Replace when display dims
When battery drop caution alarm occurs
(Guideline: approx. 5 years)
Refer to left.
(control section)
Other consumable parts
Keyboard 10
6
punches Refer to left. section 4.4.1.
Refer to section 4.4.2. section 4.4.2.
Refer to section 4.3.2
(5).
Refer to section 4.3.2
(4).
Refer to section 4.3.2
(2).
Refer to section 4.3.2
(1).
Refer to section 4.3.2
(3).
Refer to section 4.3.2
(7).
– 28 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
4.3 Replacement Methods
4.3.1 Cable
If the cable is replaced without turning the power OFF, the normal unit or peripheral devices could be damaged, and risks could be imposed.
Disconnect each cable with the following procedures. a) For the following type of connector, press the tabs with a thumb and forefinger in the direction of the arrow, and pull the connector off.
① Press
① Press
② Pull
② Pull
① Press
View from above
① Press
② Pull
② Pull
CAUTION
Do not connect or disconnect the connection cables between each unit while the power is
ON.
Do not connect the cable by pulling on the cable wire.
– 29 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods b) For a flat cable type connector with claws, open the claws in the directions of the arrows, and pull the connector off.
① Open
② Pull c) For a flat cable type connector without claws, hold the connector with a thumb and forefinger, and pull the connector off.
① Hold with thumb and forefinger.
② Pull d) For the screw fixed type connector, loosen the two fixing screws, and pull the connector off.
① Loosen
① Loosen
② Pull
② Pull
CAUTION
Do not connect or disconnect the connection cables between each unit while the power is
ON.
Do not connect the cable by pulling on the cable wire.
– 30 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
4.3.2 Durable parts
(1) Battery
All data, such as the parameters and machining programs that need to be backed up when the power is turned OFF, are saved by a lithium battery installed in the control unit's battery holder.
Battery ................................ With ER6 connector (Toshiba with Mitsubishi specifications)
Initial battery voltage .......... 3.6V
Voltage at which voltage .... 2.8V (Battery voltage drop caution alarm) drop is detected 2.6V (Battery voltage drop warning alarm)
Battery back up time ........... 45,000 hours (At room temperature. The life will be shorter if the temperature is high.)
Battery life .......................... Approx. 5 years (from date of battery manufacture)
Discharge current ............... 40
µA or less
(Replace the battery when the battery voltage drop caution alarm appears. The internal data could be damaged if the battery voltage drop warning alarm appears.) a) Replacement procedures
Always replace the battery with the control section power turned OFF.
Complete the replacement within 30 minutes after turning the power OFF. (If the battery is not connected within 30 minutes, the data being backed up will be destroyed.)
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door, and then open the front cover of the control section.
③ Remove the battery from the battery holder.
④ Pull the connector connected to the battery out from the BAT connector on the control section
PCB HR081.
⑤ Insert the connector connected to the new battery into the BAT connector on the control section PCB HR081.
⑥ Fit the battery into the battery holder.
⑦ Close the front cover of the control section, and then close the operation box door.
HR081
BAT connector
Connection connector
Battery holder
Battery
Control section
Front cover
Open the front cover of the control section.
Precautions for handling battery
• Always replace the battery with the same type.
• Do not disassemble the battery.
• Do not place the battery in flames or water.
• Do not pressurize and deform the battery.
• This is a primary battery so do not charge it.
• Dispose of the spent battery as industrial waste.
CAUTION
If the battery voltage drop warning alarm occurs, the programs, tool data and parameters could be damaged. Thus, reload each data with the input/output device after replacing the battery.
Do not replace the battery while the power is ON.
Do not short circuit, charge, overheat, incinerate or disassemble the battery.
Dispose the spent battery according to local laws.
– 31 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
(2) Backlight
A cold cathode tube is used for the light source (backlight) of the LCD panel.
The life of the backlight is 10,000 hours/25
°C. (Time for the brightness to drop to 50% of the initial value.)
The life depends on the temperature, and when used continuously at low temperatures, the life will be shorter.
LCD panel ........ KCS6448HSTT-X3 (Kyocera)
Backlight ........... KCI-04 (Kyocera)
Backlight life ..... 10,000 hours/25
°C (Time for the brightness to drop to 50% of the initial value.) a) Replacement procedures
Always replace the LCD panel backlight with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door.
③ Disconnect the backlight connection connector from the backlight power supply PCB. (two connections on top and bottom)
④ Remove the fixing screws (two screws on left top and bottom) for the control section installation fitting, and open the control section installation fitting.
⑤ Pull out the backlight built into the left top and bottom of the LCD panel. (Lock claws are provided on the front of the backlight, so press these while pulling out the backlight.)
⑥ Insert two new backlights into the left top and bottom of the LCD panel. (Insert until the lock claws click.)
⑦ Close the control section installation fitting, and fix the with the fixing screws (two screws on left top and bottom).
⑧ Connect the backlight connection connector to the backlight power supply PCB.
⑨ Close the operation box door.
LCD display section (rear)
Press
Backlight
Open
Fixing screw
Connection connector
Pull out
LCD panel
Backlight power supply
PCB
Control section installation fitting
Control section
Pull out
Press
Connection connector
Fixing screw
Backlight
CAUTION
Do not replace the backlight while the power is ON.
Dispose the spent backlight according to local laws.
– 32 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
In the system mounted with the card PC, a fan is mounted on the top of the control section to cool the card PC.
The system specifications are structured so that the temperature is detected, and when below the set temperature, the cooling fan does not function.
Cooling fan ......... MMF-04B05DM-R (DDK with Mitsubishi specifications)
Cooling fan life ... 30,000 hours a) Replacement procedures
Always replace the cooling fan with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door.
③ Remote the fan cover at the upper center of the control section. (Insert a small flat-tip screwdriver into the groove of the control section's cooling fan section, and remove the fan cover.)
④ Pull out the cooling fan from the control section's cooling fan storage section.
⑤ Disconnect the cooling fan connection connector from the control section PCB.
⑥ Replace with a new cooling fan, and connect the cooling fan connection connector to the control section PCB.
⑦ Fit the cooling fan into the control section's cooling fan storage section. (Store so that the arrow on the side of the cooling fan faces upward.)
⑧ Arrange the cooling fan wiring, and fit into the control section's cooling fan storage section.
⑨ Install the fan cover. (Install the protruding side of the fan cover onto the control section, and then install the grooved side onto the control section.)
⑩ Close the operation box door.
Fan cover
Cooling fan
Connection connector
Fan storage section (enlarged view)
Control section
CAUTION
Do not replace the cooling fan while the power is ON.
Dispose the spent cooling fan according to local laws.
– 33 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
(4) Hard disk (HDD)
Depending on the hardware specifications, the HDD may be built into the control section or may be installed externally. In either case, the HDD is connected to the control section PCB HR121 with an F140 cable.
HDD.................... MK1924FCV (Toshiba)
HDD life .............. 5 years or 20,000 power ON hours, whichever is sooner
HDD unit............. FCU6-HD101-1 (Mitsubishi Electric) a) Replacement procedures
<When built into control section>
Always replace the HDD with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door, and then open the front cover of the control section.
③ If the PCMCIA interface PCB HR841 is built into the control section, remove it.
(Refer to section
∗.∗ for the removal methods.)
④ Disconnect the F140 cable connected to the control section PCB HR121.
⑤ Remove the HDD fixing fitting screws, and remove the HDD fixing fitting.
⑥ While holding the area near the right center of the HDD installation fitting, remove the HDD with the installation fitting intact.
⑦ Remove the HDD from the HDD installation fitting. (Pull toward the top of the installation fitting.
Remove with the damping rubber intact.)
⑧ Disconnect the F140 cable from the HDD, and connect the F140 cable to the new HDD. (Take care to the connection direction when installing.)
⑨ With the HDD PCB section facing upward, install the HDD onto the HDD installation fitting.
(Install the HDD onto the groove of the damping rubber installed on the HDD installation fitting.)
⑩ Install the damping rubber between the tops of the HDD and HDD installation fitting. (Install the damping rubber so that it fits securely into the positioning holes on the side of the HDD installation fitting.)
⑪ Install the HDD installation fitting onto the control section.
⑫ Install the HDD fixing fitting, and fix with the fixing screws. (Insert the HDD fixing fitting between the HDD installation fitting and the claws on the left side of the control section case.
⑬ Connect the F140 cable from the HDD to the control section PCB HR121.
⑭ If the PCMCIA interface PCB HR841 is built into the control section, install it. (Refer to section
∗.∗ for the installation methods.)
⑮ Close the front cover of the control section, and then close the operation box door.
Refer to the replacement procedure diagram on page
∗.
<When installed outside the control section: HDD unit>
Always replace the HDD unit with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door.
③ Disconnect the heater power cable connected from the HDD unit to the operation section
PCB.
④ Disconnect the F140 cable connected to the HDD in the HDD unit. (Disconnect the F140 cable while supporting the front and rear of the HDD with fingers.)
⑤ Remove the HDD unit installation screws, and remove the HDD unit from the operation box.
⑥ Replace with the new HDD unit, and fix the HDD unit onto the operation box with the installation screws.
⑦ Connect the F140 cable to the HDD in the HDD unit.
(Fix the F140 cable while supporting the front and rear of the HDD with fingers. Take care to the direction.)
⑧ Connect the HDD unit heater power cable to the operation section PCB.
⑨ Close the operation box door.
Refer to the replacement procedure diagram on page
∗.
– 34 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
<When built into control section>
Control section
Front cover
Open the front cover of the control section.
HDD installation fitting
HDD
Damping rubber
HDD fixing fitting
F140 cable
PCB section
PCMCIA interface PCB (HR841)
Fixing screw
Leave 4 pins open
1-pin indication mark
F140 cable
Take care to the connector direction, and leave 4 pins on the left open when connecting.
CAUTION
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not replace the HDD while the power is ON.
Dispose the spent HDD according to local laws.
– 35 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
<When installed outside the control section: HDD unit>
Operation section
PCB
Heater power cable
Fixing screws
Control section
F140 cable
HDD unit
Heater power cable
HDD unit
Heater power cable
F140 cable
1-pin indication mark
Leave 4 pins open
F140 cable
CAUTION
1-pin indication mark
Take care to the connector direction, and leave 4 pins on the right open when connecting.
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not replace the HDD while the power is ON.
Dispose the spent HDD according to local laws.
– 36 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
(5) Floppy disk (FDD)
Due to the hardware specifications, the FDD is installed outside of the control section.
The FDD is used as a set with the man-machine interface PCB HR121, and is connected with an
F130 cable.
FDD .................... FD-235HG-7332 (TEAC)
FDD life .............. 12,000 access hours or 5 years of FDD motor rotation, whichever is sooner a) Replacement procedures
Always replace the FDD unit with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door.
③ Disconnect the F130 cable connected to the FDD.
④ Remove the FDD fixing screws, and remove the FDD unit from the FDD installation fitting.
⑤ Replace with the new FDD, and fix the FDD onto the FDD installation fitting with the fixing screws.
⑥ Connect the F130 cable to the FDD.
⑦ Close the operation box door.
Control section
F130 cable
FDD
Fixing screws
FDD installation fitting
F130 cable
For signals
1-pin indication mark
For power supply
Fixing screws
1-pin
CAUTION
Do not replace the FDD while the power is ON.
Dispose the spent FDD according to local laws.
– 37 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
4.3.3 Unit
The basic configuration of the control unit is the type with the control section installed on the display section. a) Replacement procedures
Always replace the control unit with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door.
③ Disconnect all cables connected to the display section and control section.
④ Remove the fixing screws fixing the control unit onto the operation box, and remove the control unit from the operation box.
⑤ Replace with a new control unit, and fix the control unit onto the operation box with the fixing screws.
⑥ Connect all cables connected to the display unit and control section. (Connect the cables to the designated connectors.)
⑦ Close the operation box door.
Control unit
Operation box
Open the operation box door.
Operation box door
Fixing screws (6 screws)
CAUTION
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not replace the control unit while the power is ON.
Do not connect or disconnect the connection cables between each unit while the power is ON.
– 38 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
As the basic configuration, the control section is installed on the rear side of the display section. a) Replacement procedures
Always replace the control section with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door.
③ Disconnect all cables connected to the control section.
④ Remove the fixing screws fixing the control section onto the control section installation fitting, and remove the control section from the fitting. (Loosen the two lower fixing screws first, and then remove the two upper fixing screws while supporting the control section with a hand. Lift the control section upward and off. The two lower fixing screws do not need to be removed.)
⑤ Replace with a new control section, and fix the control section onto the control section installation fitting.
⑥ Connect all cables connected to the control section. (Connect the cables to the designated connectors.)
⑦ Close the operation box door.
Display section
Control section installation fitting
Control section
Fixing screws (4 screws)
CAUTION
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not replace the control section while the power is ON.
Do not connect or disconnect the connection cables between each unit while the power is ON.
– 39 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
(3) Display section (LCD panel)
The display section's LCD panel is installed on the escutcheon side of the control section's installation fitting. a) Replacement procedures
Always replace the display section's LCD panel with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door.
③ Disconnect the backlight connection connector from the backlight power supply PCB. (Two connectors on top and bottom)
④ Remove the control section installation fitting fixing screws (two screws on left top and bottom), and open the control section installation fitting.
⑤ Disconnect the F091/092 cable from the CON1/2 connector at the left center of the LCD panel.
⑥ Remove the four fixing screws fixing the LCD panel to the control section installation fitting, and remove the LCD panel from the control section installation fitting. (Remove the two lower fixing screws first, and then remove the two upper fixing screws while supporting the LCD panel with a hand. Then remove the LCD panel.)
⑦ Replace with a new LCD panel, and fix the LCD panel to the control section installation fitting with the installation screws.
⑧ Connect the F091/092 cable to the CON1/2 connector at the left center of the LCD panel.
(Connect the cables to the designated connectors.)
⑨ Close the control section installation fitting, and fix with the fixing screws (two screws on left top and bottom).
⑩ Connect the backlight connection connector to the backlight power supply PCB.
⑪ Close the operation box door.
Display section (rear)
LCD panel
Control section installation fitting
Open
Fixing screws
Backlight power supply PCB
Backlight connection connector
Open
Display section (rear)
F091 cable
F092 cable
ＣＯＮ１
ＣＯＮ２
Control panel installation fitting
LCD panel
Fixing screws (4 screws)
CAUTION
Backlight connection connector
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not replace the display section (LCD panel) while the power is ON.
Do not connect or disconnect the connection cables between each unit while the power is ON.
– 40 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
(4) Base I/O unit
The base I/O unit is generally installed on the electric cabinet side. a) Replacement procedures
Always replace the base I/O unit with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the electric cabinet door.
③ Disconnect all cables connected to the base I/O unit.
④ Remove the fixing screws fixing the base I/O unit to the electric cabinet, and remove the base
I/O unit from the electric cabinet.
(Loosen the two lower fixing screws first, and then remove the two upper fixing screws while supporting the unit with a hand. Then lift the unit upward and off. The two lower fixing screws do not need to be removed.)
⑤ Replace with a new base I/O unit, and fix the unit onto the electric cabinet with the fixing screws.
⑥ Connect all cables connected to the base I/O unit. (Connect the cables to the designated connectors.)
⑦ Close the electric cabinet door.
Electric cabinet
Base I/O unit
Fixing screws (4 screws)
CAUTION
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not replace the base I/O unit while the power is ON.
Do not connect or disconnect the connection cables between each unit while the power is ON.
– 41 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
(5) External power supply unit (PD25)
The external power supply unit is the 24VDC power supply for the control section used for the system mounted with an HDD.
This unit is generally installed in the electric cabinet. a) Replacement procedures
Always replace the external power supply unit with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the electric cabinet door.
③ Disconnect all cables connected to the external power supply unit.
④ Remove the fixing screws fixing the external power supply unit to the electric cabinet, and remove the external power supply unit from the electric cabinet.
(Loosen the two lower fixing screws first, and then remove the upper fixing screw while supporting the unit with a hand. Then lift the unit upward and off. The two lower fixing screws do not need to be removed.)
⑤ Replace with a new external power supply unit, and fix the unit onto the electric cabinet with the fixing screws.
⑥ Connect all cables connected to the external power supply unit. (Connect the cables to the designated connectors.)
⑦ Close the electric cabinet door.
Electric cabinet
External power supply unit (PD25A)
Fixing screws (3 screws)
CAUTION
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not replace the external power supply unit while the power is ON.
Do not connect or disconnect the connection cables between each unit while the power is ON.
– 42 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
In the system mounted with the PCMCIA interface PCB HR841, up to two commercial PCMCIA cards can be connected.
Install the driver for the PCMCIA card to be used before starting the system. (Refer to the software operation manual and the instruction manual of the PCMCIA card being used on how to install the software.) a) Replacement procedures
Always replace the PCMCIA card with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door, and then open the front cover of the control section.
③ Press the eject button at the left side of the PCMCIA card to be replaced, and remove the
PCMCIA card from the PCMCIA interface PCB HR841.
④ Insert the new PCMCIA card into the open slot of the PCMCIA interface PCB HR841. (Insert the PCMCIA card with the side having the product name printed toward the back and the connection connector side facing down. Insert until the eject button clicks.
⑤ Close the front cover of the control section, and then close the operation box door.
Product name
(front side)
Install
Cautions
(rear side)
Remove
Control section
Connection connector
PCMCIA card mounting direction
Front cover
Open the front cover of the control section.
① Press
② Pull out
PCMCIA card
Slot 1
Slot 0
Slot 1 eject button
Slot 0 eject button
PCMCIA interfacePCB
(HR841)
CAUTION
Incorrect connections may damage the devices, so connect the PCMCIA card to the specified connector.
Do not replace the PCMCIA card while the power is ON.
– 43 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
(7) Keyboard
The keyboard is installed on the display section periphery. a) Replacement procedures
Always replace the keyboard with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door.
③ Disconnect all cables connected to the keyboard.
④ Remove the fixing screw fixing the keyboard to the operation box, and remove the keyboard from the operation box.
⑤ Replace with a new keyboard, and install the keyboard onto the operation box with the fixing screws.
⑥ Connect all cables connected to the keyboard. (Connect the cables to the designated connectors.)
⑦ Close the operation box door.
Keyboard
Operation box
Open the operation box door.
Operation box door
Fixing screws (4 screws)
CAUTION
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not replace the keyboard while the power is ON.
Do not connect or disconnect the connection cables between each unit while the power is ON.
– 44 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
4.3.4 Control PCB
(1) Control section power supply PCB (HR081)
The control section power supply PCB is supplied with 24VDC from an external source. This PCB generates the DC voltage required for each control PCB in the control section. a) Replacement procedures
Always replace the control section power supply PCB with the control section power turned OFF.
A battery for backing up the memory is mounted on the control section power supply PCB, so as with the battery, replace the control section power supply PCB within 30 minutes.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door, and then open the front cover of the control section.
③ Disconnect all cables connected to the control section power supply PCB.
④ While holding the front upper and lower sections of the control section power supply PCB with both hands, pull out the PCB from the control section.
⑤ Remove the battery from the control section power supply PCB that was removed.
⑥ Replace with a new control power supply PCB, and install the battery.
⑦ Install the control section power supply PCB into the control section. (Align the control section power supply PCB with the PCB fixing guides on the inner side of the control section case, and then install.)
⑧ Connect all cables connected to the control section power supply PCB. (Connect the cables to the designated connectors.)
⑨ Close the front cover of the control section, and then close the operation box door.
Control section case
Control section power supply PCB
PCB fixing guides
Control section
Control section case
Connection connector
Control section power supply PCB
BAT connector
Battery holder
Open the front cover of the control section.
Front cover
Battery
CAUTION
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not replace the control section power supply PCB while the power is ON.
Do not connect or disconnect the connection cables between each unit while the power is ON.
– 45 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
(2) PCMCIA interface PCB (HR841)
The PCMCIA interface PCB is used when connecting commercial PCMCIA cards. Depending on the hardware specifications, the PCB may be built into the control section.
This PCB is used as a set with the man-machine interface PCB HR121, and is connected with the
F150 cable. a) Replacement procedures
Always replace the PCMCIA interface PCB with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door, and then open the front cover of the control section.
③ Remove the PCMCIA interface PCB from the control section. (Open the PCB fixing claws on the left and right of the PCMCIA interface PCB storage section, and remove the PCB.)
④ Disconnect the F150 cable connected to the ISA connector on the PCMCIA interface PCB.
⑤ Replace with a new PCMCIA interface PCB, and connect the F150 cable to the ISA connector.
⑥ Face the ISA connector section of the PCMCIA interface PCB to the back, and install the PCB in the control section.
⑦ Close the front cover of the control section, and close the operation box door.
Control section
Front cover
Open the front cover of the control section.
PCB fixing claws
F150 cable
PCMCIA interface PCB
(HR841)
ISA connector
PCMCIA interface PCB storage area (enlarged view)
CAUTION
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not replace the PCMCIA interface PCB while the power is ON.
– 46 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
(3) Backlight power supply PCB
The backlight power PCB is supplied with 12VDC from the control section power supply. This
PCB generates a high voltage AC voltage for lighting the backlight of the LCD panel. a) Replacement procedures
Always replace the backlight power supply PCB with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door.
③ Disconnect all cables connected to the backlight power supply PCB.
④ Remove the two protective cover fixing screws, and then remove the protective cover.
(Remove a fixing screw on one side, and then while supporting the protective cover with a hand, remove the other fixing screw.)
⑤ Remove the two hexagon spacers fixing the backlight power supply PCB, and remove the backlight power supply PCB. (Remove a hexagon spacer on one side, and then while supporting the PCB with a hand, remove the other hexagon spacer.)
⑥ Replace with a new backlight power supply PCB, and install the PCB onto the control section installation fitting with the hexagon spacers.
⑦ Install the hexagon spacers that fix the protective cover onto the backlight power supply PCB, and fix with the fixing screws.
⑧ Connect all cables connected to the backlight power supply PCB. (Connect the cables to the designated connectors.)
⑨ Close the operation box door.
Control section installation fitting
Control section
Protective cover
Fixing screws (2 screws)
Backlight power supply PCB
Hexagon spacer (2 spacers)
CAUTION
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not replace the backlight power supply PCB while the power is ON.
Do not connect or disconnect the connection cables between each unit while the power is ON.
– 47 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
(4) LCD signal interface PCB (HR273)
The LCD signal interface PCB is used to distribute the signals from the control section to the LCD panel.
This PCB has a voltage booster circuit inside for adjusting the contrast. a) Replacement procedures
Always replace the backlight power supply PCB with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door.
③ Disconnect all cables connected to the LCD signal interface PCB.
④ Remove the LCD signal interface PCB from the PCB fixing nylon fastener on the control section installation fitting. (Pinch the lock section of the PCB fixing nylon fastener with a pair of radio pliers, etc., to release the lock, and then remove the PCB.)
⑤ Replace with a new LCD signal interface PCB, and install the PCB onto the PCB fixing nylon fastener on the control section installation fitting. (Install the PCB by inserting the PCB fixing nylon fastener lock section into the PCB installation holes.)
⑥ Connect all cables connected to the LCD signal interface PCB. (Connect the cables to the designated connectors.)
⑦ Close the operation box door.
Control section installation fitting
Control section
PCB fixing nylon fasteners
LCD signal interface PCB
Radio pliers
PCB installation hole
PCB fixing nylon fastener
Lock section
PCB
Removing the PCB
Pinch the nylon fastener lock section with a pair of radio pliers, etc., and make the diameter of the lock section smaller than the
PCB installation hole.
Then remove the PCB.
CAUTION
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not replace the LCD signal interface PCB while the power is ON.
Do not connect or disconnect the connection cables between each unit while the power is ON.
– 48 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
The expansion PCB is used to expand the system for adding a serial port, etc. (Refer to corresponding modules in section 1.1.3 and section 2, for details on the expansion PCB types and functions.)
Up to two expansion PCBs can be added. The PCBs are mounted in the slots on the right side of the control section power supply PCB. a) Replacement procedures
Always replace the expansion PCB with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door, and then open the front cover of the control section.
③ Disconnect all cables connected to the expansion PCB.
④ While holding the front upper and lower sections of the expansion PCB with both hands, pull out the PCB from the control section.
⑤ Replace with a new expansion PCB, and if the PCB has settings, set the settings to the same as the original PCB.
⑥ Install the expansion PCB into the control section. (Align the expansion PCB with the PCB fixing guides on the inner side of the control section case, and then install.)
⑦ Connect all cables connected to the expansion PCB. (Connect the cables to the designated connectors.)
⑧ Close the front cover of the control section, and then close the operation box door.
Control section case
Expansion PCB mounting slot
Expansion PCB
PCB fixing guides
Control section
Expansion PCB
Control section case
Open the front cover of the control section.
Front cover
CAUTION
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not replace the expansion PCB while the power is ON.
Do not connect or disconnect the connection cables between each unit while the power is ON.
– 49 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
The cassette memory is a PCB used to store the user PLCs and machining programs, and is installed on CBUS1 of the control section. (Refer to corresponding modules in section 1.1.3 and section 2, for details on the cassette memory types and functions.) a) Replacement procedures
Always replace the cassette memory with the control section power turned OFF.
Before replacing the RAM type cassette memory, always make a back up of the memory to be replaced using an external I/O device, etc., and then re-input the details after replacing the memory.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the operation box door, and then open the front cover of the control section.
③ While holding the front upper and lower sections of the cassette memory with a thumb and forefinger, pull out the cassette memory from the control section.
④ Replace with a new cassette memory, and install into the control section. (Align the cassette memory with the cassette fixing guides on the inner side of the control section case, and then install.)
⑤ Close the front cover of the control section, and then close the operation box door.
ＣＢＵＳ１
ＣＢＵＳ２
Control section case
Cassette memory
Cassette fixing guide
Control section
Control section case
Cassette memory
Front cover
Open the front cover of the control section.
CAUTION
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not replace the cassette memory while the power is ON.
Do not connect or disconnect the connection cables between each unit while the power is ON.
– 50 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.3 Replacement Methods
(7) Card-sized I/O (HR361, HR371)
The card-sized I/O is a machine input/output interface PCB used for mounting relay PCBs, etc., in the electric cabinet onto the control PCB. a) Replacement procedures
Always replace the card-sized I/O with the control section power turned OFF.
① Check that the control section power is turned OFF. (If the power is not OFF, turn it OFF.)
② Open the electric cabinet door.
③ Remove the card-sized I/O from the control PCB in the electric cabinet. (Open the locks of the card-sized I/O fixing guides outward to open the fixing claws, and then pull the card-sized I/O out.)
④ Replace with a new card-sized I/O and install onto the control PCB in the electric cabinet.
(Align the card-sized I/O with the card-sized I/O fixing guides in the control PCB, and insert until the fixing guide's lock section is securely locked.)
⑤ Close the electric cabinet door.
Electric cabinet
Control PCB
Lock section
Fixing guide
Card-sized I/O
(HR361, HR371)
Control PCB
Position of fixing claws when card-sized I/O is mounted.
Card-sized I/O fixing guides
Removal of card-sized I/O
Open the locks of the card-sized I/O fixing guides outward to open the fixing claws, and then pull the card-sized I/O out.
Card-sized I/O
CAUTION
Incorrect connections may damage the devices, so connect the cables to the specified connectors.
Do not replace the card-sized I/O while the power is ON.
Do not connect or disconnect the connection cables between each unit while the power is ON.
– 51 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.4 Cleaning and Handling
4.4 Cleaning and Handling
4.4.1 Escutcheon
(1) Cleaning the escutcheon
① Follow the same procedures as described for replacing the display section (LCD panel) in section 4.3.3 (3), and open the display section so that the rear side of the escutcheon can be cleaned.
② Wipe the escutcheon with a soft clean cloth. If the escutcheon is heavily dirtied, soak the cloth in a neutral detergent, and wipe the display. Do not use alcohol or paint thinner, etc.
4.4.2 Floppy disk drive
(1) Cleaning the floppy disk drive
When the floppy disk drive is used for a long time, magnetic particles or dust from the disk may adhere onto the head surface. This can cause the reading and writing processes to be inhibited.
Clean the head periodically (once every two months) with the following procedure. a) Recommended cleaning disk
Maker : Japan Morex
Type : Morex cleaning floppy for double-sided 3.5-inch
Method : Dry b) Cleaning method
① Insert the cleaning disk into the floppy disk drive to be cleaned.
② Start the cleaning program, and follow the instructions given on the screen.
③ When the program is completed, eject the cleaning disk.
Note 3) There is a limit to the number of times the cleaning disk can be used. When the limit is reached, replace the cleaning disk with a new one. Refer to the cleaning disk manual for the limit.
(2) Handling floppy disks
Observe the following items to ensure that the floppy disk can be used for a long time. a) Precautions for use
① Never tough the magnetic surface with hands.
Finger prints on the magnetic surface will inhibit the reading process.
② Do not touch the floppy disk with hands dirtied with oil or iron chips.
③ Do not place the floppy disk near cigarette smoke.
Do not apply solvents on the magnetic surface.
④ Always attach the index label to the correct position so that it will not come off. Do not layer the index labels.
⑤ Fill in the index label before attaching it to the floppy disk.
When writing on a label already attached to the floppy disk, use a felt-tip pen, etc.
⑥ Carefully insert the floppy disk into the drive with it facing the correct direction. Rough handling during insertion and ejection could damage the floppy disk.
⑦ When bringing the floppy disk inside from outdoors where the temperature and humidity difference are great from indoors, wait at least 30 minutes before starting use.
– 52 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.4 Cleaning and Handling b) Precautions for storage
① Store floppy disks that are not in use and the backup floppy disks in plastic cases.
② Do not place the floppy disk where it will be subject to direct sunlight or near heating appliances.
③ Do not place the floppy disk near magnets or items that generate strong magnetic fields.
Magnetic rings and necklaces could also damage the data on the floppy disk, so avoid wearing these items when handling floppy disks.
④ Do not place heavy items on the floppy disk.
(3) Other precautions for use
a) Floppy disk drive life
The durability of the floppy disk drive is guaranteed for five years of the FDD motor rotation or
12,000 access hours, whichever is sooner. However, if used in a heavily contaminated environment, the reading and writing processes could be inhibited due to the adherence of dust or foreign matter.
Periodically clean the head to prevent this type of trouble. (Refer to section 4.4.2.) b) Recommendation for making backups
Make copies of the floppy disks containing important data to be used in case of an accident such as damaging of the floppy disk or destruction of the data. c) Items to observe for working conditions
The floppy disk drive and floppy disks are extremely sensitive to changes in the temperature and humidity and to dust, so always observe the precautions that have been described.
In respect to the temperature, if the working conditions are not satisfied (such as if the system is started at below freezing), the data track and head positions may deviate and prevent the data from being read properly.
In this case, wait for the internal temperature to rise. d) Writing to floppy disks
The temperature must be 10 to 40
°C when writing to the floppy disk.
Always observe the temperature conditions when writing data.
– 53 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.4 Cleaning and Handling
(4) Troubleshooting
FLD error
Is the floppy disk correctly mounted?
YES
Was the floppy disk drive used at below freezing temperatures?
NO
Clean the floppy disk
drive head.
Has an FLD error
occurred?
YES
Replace the floppy disk with the backup copy.
NO
YES
NO
Correctly mount the
floppy disk.
Has an FLD error
occurred?
YES
Has an FLD error
occurred?
YES
The error was caused by head contamination.
NO
The floppy disk is
defective.
Carry out warming operation until the internal temperature rises.
NO
The track has deviated due to the temperature.
Has an FLD error
occurred?
YES
The floppy disk is
defective.
NO
The floppy disk drive
is defective.
– 54 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.4 Cleaning and Handling
4.4.3 Hard disk
(1) Handling the hard disk drive
a) Precautions for use
① Correct connect the cable.
② Do not touch the connector section with hands or metal.
③ Do not apply excessive force on the connector section.
④ Do not drop or apply strong impacts on the drive.
⑤ Do not disassemble the drive. b) Precautions for storage
① Avoid storing the drive in high temperature, high humidity places.
② Do not place the drive near magnets or items that generate strong magnetic fields.
(2) Other precautions for use
a) Recommendation for making backups
The hard disk is a durable part, so make a copy of the hard disk to save important data.
4.4.4 LCD panel
(1) Handling the LCD panel
a) Precautions for use
① The polarizing plate (display surface) of the LCD panel will scratch easily, so take care when handling.
② Glass is used and will crack or break if dropped or contacted against hard objects. Take care when handling.
③ If water drops, etc., are left on the polarizing plate for a long time, the plate could discolor or become spotted. Wipe of any moisture immediately.
④ If the polarizing plate is contaminated, wipe it off with cotton or a soft cloth, etc.
⑤ A CMOS LSI is used, so take special care against static electricity when handling.
⑥ Never disassemble the LCD panel. Doing so could lead to damage. b) Precautions for storage
① Avoid storing the LCD panel in high temperature, high humidity places. (Store within the storage temperature range.)
② When storing the LCD panel as a single unit, make sure that other items will not contact the polarizing plate (display surface).
③ When storing the LCD panel for a long time, store it in a dark place where it will not be subject to direct sunlight or fluorescent light.
(2) Other precautions for use
a) Backlight life
The life of the backlight is 10,000 hours/25
°C. (Time for the brightness to drop to 50% of the initial value.)
The life depends on the temperature, and when used continuously at low temperatures, the life will be shorter. b) Brightness at startup
Due to the characteristics of the backlight, the brightness will drop slightly at low temperatures. It may take several minutes for the brightness to reach the rated value after the power is turned
ON. c) Unevenness, bright spots and dark spots
The LCD display may have uneven brightness, small bright spots or small dark spots, but this is not a fault. d) Contrast
If the contrast of the STN method LCD panel changes due to temperature fluctuations making the panel difficult to view, open the operation box door and adjust the contrast adjustment
– 55 –
4. DAILY MAINTENANCE AND PERIODIC INSPECTION AND MAINTENANCE
4.4 Cleaning and Handling potentiometer on the LCD signal interface PCB.
4.4.5 PCMCIA card
(1) Handling the PCMCIA card
The general precautions for handling the PCMCIA card are as described below.
Refer to the instruction manual of the PCMCIA card being used for details. a) Precautions for use
① Insert the PCMCIA card with the correct direction.
② Do not touch the connector section with hands or metal.
③ Do not apply excessive force on the connector section.
④ Do not bend or apply strong impacts on the card.
⑤ Do not open the cover or disassemble the card.
⑥ Avoid use in places with high levels of dust. b) Precautions for storage
① Avoid storing the PCMCIA card in high temperature, high humidity places.
② Avoid storing the PCMCIA card in places with high levels of dust.
– 56 –
Revision History
Revision Date of revision
＊
97/10/2
A
B
97/11/25
01/9/17
Revision details
First edition was issued.
Mistakes were corrected.
Design of the cover and the back cover were changed.
MODEL, MODEL CODE, and Manual No. were added on the back cover.
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Key features
- User-friendly interface
- Advanced programming capabilities
- Robust performance
- Supports a wide range of machine tools
- High precision and accuracy
- Complex machining operations
