Nidek Medical LEX-DRILL User manual

AUTO DRILLING UNIT
Model
December 2007
Pages in total: 94
LHM2A*RDA001A/E
SERVICE MANUAL

NIDEK CO., LTD. : 34-14, Maehama, Hiroishi-cho, Gamagori, Aichi 443-0038, Japan
(Manufacturer) Telephone: [phone]
Facsimile: (81-533) 67-6610
NIDEK CO., LTD : 3F Sumitomo Fudosan Hongo Bldg., 3-22-5, Hongo,
(Tokyo Office) Bunkyo-Ku, Tokyo 113-0033, Japan
Telephone: [phone]
Facsimile: (81-3) 5844-2642
NIDEK INCORPORATED : 47651 Westinghouse Drive, Fremont, California 94539, U. S. A.
(United States Agent) Telephone: [phone]
Facsimile: [phone]
NIDEK SOCIETE ANONYME : Europarc 13, rue Auguste Perret, 94042 CRETEIL, France
(EU Authorized Representative) Telephone: [phone]
Facsimile: (01) 49 80 32 08

I
Table of Contents
§1 INTRODUCTION .............................................................................. 1-1
§2 SAFETY PRECAUTIONS.................................................................2-1
§3 PRODUCT OUTLINE .......................................................................3-1
3.1 Quality Standard...................................................................................................... 3-1
3.2 Configuration ........................................................................................................... 3-2
3.3 Labels ...................................................................................................................... 3-5
3.4 Assembly Component Layout ................................................................................. 3-8
3.5 Electrical Component Layout .................................................................................. 3-9
3.6 Replacement Parts.................................................................................................3-11
§ 4 TROUBLESHOOTING .....................................................................4-1
§ 5 REMOVING PROCEDURES ............................................................ 5-1
5.1 Prior to Removal Work ........................................................................................... 5-1
5.2 Abbreviations for Screws ........................................................................................ 5-1
5.3 Covers ..................................................................................................................... 5-2
§6 REPLACEMENT PROCEDURES ....................................................6-1
6.1 Base ASSY. ............................................................................................................. 6-1
6.2 Processing Unit ASSY. ............................................................................................ 6-2
6.3 Drill Motor ................................................................................................................ 6-2
6.4 Chuck Arm ASSY. .................................................................................................... 6-3
6.5 Carriage ASSY......................................................................................................... 6-4
6.6 V Axis Motor ASSY. ................................................................................................. 6-5
6.7 V Axis Motor ............................................................................................................ 6-6
6.8 V Axis Carriage ASSY. ............................................................................................ 6-6
6.9 Chuck Motor ASSY. ................................................................................................. 6-7
6.10 Scissors Gear ASSY. ............................................................................................. 6-7
6.11 θAxis Gear ASSY. ................................................................................................. 6-8
6.12 θAxis Motor ASSY. ................................................................................................ 6-8
6.13 θAxis Motor ........................................................................................................... 6-8
6.14 Main Board ............................................................................................................ 6-9
6.15 Carriage Relay Board ........................................................................................... 6-9
6.16 SW Panel Board and Cover Sensor..................................................................... 6-9
6.14 H Axis Motor ........................................................................................................ 6-10
6.18 S Axis Motor ........................................................................................................ 6-10
6.19 Chuck Motor ......................................................................................................... 6-11
6.20 Switching Regulator ............................................................................................. 6-11

II
6.21 Rocker Switch ..................................................................................................... 6-12
6.22 Fuse Holder and Connector RS-232C ............................................................... 6-12
6.23 Fan ...................................................................................................................... 6-12
6.24 H Axis Sensor ...................................................................................................... 6-13
6.25 S Axis Sensor ...................................................................................................... 6-13
6.26 V Axis Sensor ...................................................................................................... 6-14
6.27 θAxis Sensor ...................................................................................................... 6-14
6.28 Chuck SW Sensor .............................................................................................. 6-14
6.29 Chuck Sensor ...................................................................................................... 6-15
§7 ADJUSTMENT .................................................................................7-1
7.1 Preparation for Setting and Adjustment ................................................................. 7-1
7.2 Utility Program ......................................................................................................... 7-3
7.2.1 Writing program (upgrade) ............................................................................ 7-3
7.2.2 Backing up parameter settings...................................................................... 7-5
7.2.3 Restoring parameter settings ........................................................................ 7-6
7.2.4 Copying parameter settings to USB flash drive ............................................ 7-7
7.2.5 Parameter settings ........................................................................................ 7-8
7.2.5.1 Displaying parameter setting screen [Lex 1000] .................................... 7-8
7.2.5.2 Parameter list .......................................................................................... 7-9
7.2.6 Machine test program .................................................................................. 7-10
7.3 Mechanical Parts ................................................................................................... 7-12
7.3.1 Chuck pressure ........................................................................................... 7-12
7.3.2 Rattle adjustment of S axis ......................................................................... 7-15
7.3.3 Rattle adjustment of chuck axis .................................................................. 7-15
7.3.4 Rattle adjustment of H axis ......................................................................... 7-16
7.3.5 Rattle adjustment of V axis ......................................................................... 7-16
7.3.6 Rattle adjustment of θaxis .......................................................................... 7-16
7.4 Calibration ............................................................................................................. 7-18
7.4.1 Shading plate position ................................................................................. 7-18
7.5 Processing............................................................................................................. 7-20
7.5.1 Drill tool angle .............................................................................................. 7-20
7.5.2 Drill axis and drill position ............................................................................ 7-22
7.5.3 Horizontal coordinate offset ........................................................................ 7-24
7.5.4 Vertical coordinate offset and Drill zero point ............................................. 7-26
7.5.5 Front surface offset ..................................................................................... 7-28
7.5.6 Hole depth ................................................................................................... 7-30
7.5.7 Hole diameter .............................................................................................. 7-32
7.5.8 Drill check .................................................................................................... 7-33
§8 SUPPLEMENT .................................................................................8-1
8.1 Wiring Diagram ....................................................................................................... 8-1
8.2 Connector Cable ..................................................................................................... 8-3
8.3 BA01 Board ............................................................................................................. 8-8
8.4 Grease ..................................................................................................................... 8-9
8.5 Grease MSDS ........................................................................................................8-11
8.5.1 NIPPECO LLP .............................................................................................. 8-11
8.5.2 BE-4 ............................................................................................................. 8-13
8.5.3 SHV-2 ........................................................................................................... 8-15

III
8.6 Jigs ........................................................................................................................ 8-17
8.7 Tools ...................................................................................................................... 8-18
8.8 Consumables ........................................................................................................ 8-18

IV
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1 - 1
LHM2A*RDA001A/E
§
1 INTRODUCTION
• This service manual is for the NIDEK AUTO DRILLING UNIT, Lex Drill.
• For correct service, thorough understanding of the contents of this manual is required
prior to the service.
• This manual mainly describes simple measures by part replacement.
• Disassembly or repair must be performed by NIDEK service persons or other qualified
personnel.
• Refer to the operator’s manual, parts list, and installation manual for the Lex Drill.
• Refer to the Service Manual Annex for important changes.
• In case the system cannot be repaired according to the procedures described in this
service manual, please report the serial number of the system, version of the software,
and details of the symptom or symptoms.

LHM2A*RDA001A/E
1 - 2
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2 - 1
LHM2A*RDA001A/E
§
2 SAFETY PRECAUTIONS
<General precautions>
• Servicing must be performed by NIDEK service persons or other qualified personnel.
• Perform all servicing according to the procedures described in this manual.
Failure to do so may cause unexpected accident or malfunction.
• When performing maintenance work, turn off the power switch and disconnect the power
cord from the wall outlet unless the power needs to be on.
<Maintenance precautions>
• Be sure to remove the drill bit (44101-M381) to prevent injuries during maintenance work
unless it needs to be attached.
• Take antistatic precautions prior to servicing.
• In case of system malfunction, check the symptom and turn off the power .
• Do not drop parts or screws inside the system, nor bump it against surrounding objects.
• Prepare storage cases so as not to lose the removed parts or screws.
• Tighten or loosen screws with proper tools.
• After loosening the screws fixed by a threadlocking adhesive, be sure to reapply the
threadlocking adhesive to the screws when retightening them.
• After replacing parts, confirm that they are fixed in their original positions securely before
turning on the power.
• Should you observe smoke or strange odors being issued from the system, immediately turn
off the power switch, disconnect the power cord from the outlet, and investigate the cause.
If the system is powered in abnormal conditions, fire, electric shock, or total loss of the
system may result.
• Do not perform servicing with wet hands. Doing so could cause electric shock or malfunction.
• See Wiring Diagram and Connecting Cable for checking cable breaks as described in
“TROUBLESHOOTING”. In addition, check cables for the following:
1. Connectors are connected and crimped securely.
2. No contact failure occurs after re-connection of connectors.
3. Cables are soldered properly.
Do not yank the cables with excessive force. Doing so could cause cable breakage.
<Adjustment precautions>
• Perform adjustment on a vibration-free, stable and level surface.
A slanted floor or place subject to vibration will obstruct accurate adjustment.
• Never use the adjustment jigs for purposes other than those intended.
• If jigs necessary for adjustment are not available, return the system without performing
adjustment.

LHM2A*RDA001A/E
2 - 2
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3 - 1
LHM2A*RDA001A/E
3.1 Quality Standard
Classi-
fication
Misalignment of covers Gap in juncture of covers must be uniform.
Coating appearance Equivalent to sample in color and polish
No scratches or chips
Coarted and formed
part appearance No stains, discolorations, or dent
Printer graphic No blurred letters or ink stains
Power cord No stains or scratches
System connection Data can be transmitted or received between Lex
1000 and Lex Drill.
Shift amount of the drilled hole on a flat lens is
±0.1 mm or less of the specified one.
Hole is drilled in the direction of the normal
to the lens front surface.
Drilling
Lens chuck
Item Acceptance criteria Measurement method/tool
Configuration
Packaging unit
Product unit
Appearance
Function
Commu- nication
1 per 1 product
Main body 1 unit
<Accessories>
Drill bit 5 units
Cup holder 1 unit (built-in)
Lens chuck 1 unit (built-in)
RS-232C cable 1 unit
Brush 1unit
Power cord 1 unit
Spare fuse 2 units
Operator’s manual 1 volume
Visually check the contents
and numbers.
Visually check the contents
and numbers.
Visual check
Measure if necessary.
(Scale)
Visual check
Visual check
Visual check
According to Appearance
Acceptance Criteria.
Visual check
Connect Lex 1000 and Lex Drill.
Check transmission and reception.
Drilled hole diameter is ±0.1 mm of the specified
diameter.
Drill φ 1.2, φ 1.6, and φ 2.0
holes and measure them with
pin gauges.
Drill in (20, 20), (-20, 20),
(20, -20), and (-20, -20)
positions. Confirm that each
hole pitch is ±0.2 mm or less.
Drill a flat lens. Measure the
distance between the hole
and lens edge on each front and
rear surface. Taking the distance
as the inclination, calculate the
angle. Tolerance must be ±3°
of the inclination angle.
Profile irregularity of the drilled surface is Ry 25 or less
when a slotted hole is drilled.
Chuck pressure at fully pressing time is 60 ±5 kgf.
Check roughness on the lens
surface with the tool.
Check chuck pressure with the
pressure sensor.
§3 PRODUCT OUTLINE

LHM2A*RDA001A/E
3 - 2
3.2 Configuration
1. Lid
The door of the processing chamber
It prevents processing waste from flying
free.
2. Drill release button
Releases the locked part holding the drill
bit.
3. Waste bin
Processing waste collects here.
4. START button
Starts processing.
5. STOP button
Stops processing.
6. Inlet
Connects with the power cord.
7. Edger port
Communication port for the connection of
the Lex 1000
2. Drill release button
4. START button
1. Lid
3. Waste bin
5. STOP button
LED (left side)
Rear view
Power switch
Vent holes
Front view
LED (right side)
6. Inlet
7. Edger port

LHM2A*RDA001A/E
3 - 3
Processing chamber
11. Spindle
8. Lens chuck
9. Cup holder
10. Drill
8. Lens chuck
Presses againat a lens set in the cup holder
to secure it.
9. Cup holder
This part holds a lens blocked with a pliable
cup.
10. Drill bit
Drills a lens. As a standard accessory, five
units of drill bits (44101-M381, light blue)
are supplied.
11. Spindle
The drill bit is attached here.

LHM2A*RDA001A/E
3 - 4
(Lex1000Controlpanel)
A
T
S
R
T
T
O
P
S
6. Lens button 8. Mode button
9. Polish button7. Frame button
10. FC button
12345
11. R/L button
12
1. button
Switches the screen between the layout and
menu.
2. button, button
Moves the highlight on the screen.
3. button, button
Enters the data such as prescription.
4. button
Changes the layout entry method.
5. button
Calls up the data measured by the tracing
unit on the display.
6. Lens button
Used to select the lens material among
CR39 (plastic), Hi-index (high index plastic),
Polyca. (polycarbonate), Acrylic (acrylic
resin), Trivex, Urethane (polyurethane), and
Glass. (Glass cannot be selected in type
PLB-8.)
In addition, extended pressing of this button
switches soft processing on and off.
7. Frame button
Used to select processing mode.
Extended pressing of this button switches
8-base curve processing on and off.
8. Mode button
Used to select processing mode.
Extended pressing of this button switches
nano cup processing on and off.
9. Polish button
Switches polishing on and off.
10. FC button
Switches frame changing mode on and off.
11. R/L button
Used to select the side of a lens to be
processed, right (R) or left (L).
12. button
Starts processing.

LHM2A*RDA001A/E
3 - 5
3.3 Labels
Left side view
Indicates that caution must be taken.
Refer to the operator’s manual before use.
Indicates that the instrument must be supplied only with
alternating current.
Fuse.
Indicates the date of manufacture.
Indicates the manufacturer.
Indicates that the state of the power switch. When the symbol
side of the switch is pressed down, the power is on.
Indicates that the state of the power switch. When the symbol
side of the switch is pressed down, the power is off.
WEEE symbol
Indicates that this product shall be disposed of in a separate
collection of electrical and electronic equipment in EU.

LHM2A*RDA001A/E
3 - 6
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Rear view

LHM2A*RDA001A/E
3 - 7
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Processing chamber

LHM2A*RDA001A/E
3 - 8
44101‑1100 電源部ＡＳ POWERSUPPLYASSY
44101‑2100 トップカバーＡＳ TOPCOVERASSY
44101‑3000 加工部ＡＳ PROCESSINGCHAMBERASSY
44101‑5000 キャリッジＡＳ CARRIGEASSY
44101‑5100 Ｖ軸キャリッジＡＳ VAXISCARRIGEASSY
44101‑5110 チャックモーターＡＳ CHUCKMOTORASSY
44101‑5120 シザーズギヤＡＳ GEARASSY
44101‑5130 θ軸ギヤＡＳ THETAAXISGEARASSY
44101‑5140 θ軸モーターＡＳ THETAAXISMOTORASSY
44101‑5200 Ｖ軸モーターＡＳ VAXISMOTORASSY
44101‑5300 チャックアームＡＳ CHUCKARMASSY
3.4 Assembly Component Layout
PART NO. DESCRIPTION
-2100
44101
-3000
44101
-1100
44101
-5300
44101
-5200
44101
44101-5000
-5200
44101
-5300
44101
-5110
44101
-5120
44101 -5140
44101
-5130
44101
-5100
44101

LHM2A*RDA001A/E
3 - 9
3.5 Electrical Component Layout
SYM. PART NO. DESCRIPTION
BA01 44101‑BA01 ＭＡＩＮ基板 MAINBOARD
BA02 44101‑BA02 キャリッジ中継基板 CARRIGERELAYBOARD
CA04 44101‑CA04 コネクター(RS‑232C) CONNECTOR(RS‑232C)
CA07 44101‑CA07 Ｈ軸センサー HAXISORIGINSENSOR
CA10 44101‑CA10 Ｖ軸センサー VAXISORIGINSENSOR
CA11 44101‑CA11 θ軸センサー θAXISORIGINSENSOR
CA23 44101‑CA23 COVERCLOSEセンサー COVERCLOSESENSOR
E15 44101‑E015 Ｈ軸モーター HAXISMOTOR
E18 44101‑E018 Ｖ軸モーター VAXISMOTOR
E19 44101‑E019 θ軸モーター θAXISMOTOR
E20 44101‑E020 チャックモーター CHUCKMOTOR
E50 80401‑00033 ヒューズホルダー FUSEHOLDER
BA01
CA23
E50
E15
CA07
CA11
E19
BA02
E18
E20
CA10
CA04

LHM2A*RDA001A/E
3 - 10
BA03 44101‑BA03 SWPANEL基板 SWPANELBOARD
CA07 41971‑CA07 ファン FAN
CA08 44101‑CA08 Ｓ軸センサー SAXISORIGINSENSOR
CA12 44101‑CA12 チャックSWセンサー CHUCKORIGINSWSENSOR
CA13 44101‑CA13 チャックセンサー CHUCKSENSOR
E16 44101‑E016 Ｓ軸モーター SAXISMOTOR
E22 44101‑E022 ドリルモーター DRILLMOTOR
E51 80460‑00130 ロッカースイッチ ROCKERSWITCH
E52 80602‑00107 スイッチング電源 POWERSUPPLY
SYM. PART NO. DESCRIPTION
E51
E52
E16
CA08 BA03
CA13
CA12
E22
41971
-CA07