cr30-x service training. 2created by claus steiner - 23 september 2006 safety: working with the...
TRANSCRIPT
CR30-X Service Training
2 Created by Claus Steiner - 23 September 2006
Safety: Working with the Digitizer (1)
C AU TIO N
WAR NIN G
D AN G ER
RIS
KLight injuries, damage
Serious injuries, damage
Death or heavy injuries
Safety Notes: General Classification
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Safety: Working with the Digitizer (2)
• Safety Directions are divided in "Generic Safety Directions" (Chapter 0) and product specific safety directions (Chapter 3.1)
• The following charts list the product specific safety directions which are important for this training.
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Safety: Working with the Digitizer (3)
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Safety: Working with the Digitizer (4)
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Safety: Working with the Digitizer (5)
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System Overview: CR 30-X System
Digitizer
Cassette
NX W orkstation
517511ae.cdr
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System Overview: CR30-X System (2)
PMI Board(hotoultiplier
nterface)PM
I
FireWireInterface
FireWireInterface
ASAPPackage*
*ASAP = Agfa Scanner Access Package
NXApplication Software
TWAIN Interface
Digitizer
NX Workstation
517502ca.cdr
FireWireCable
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CR 30-X System: Options and Accessories
Options (main components)• Printer (Drystar 5302)• Auto QC² Package• Additional Cassettes with Image Plates
Accessories• Table with wheels• UPS • Wall fixation Kit• CR Inroom X-Ray Shielding 517511ak.cdr
X-R ay Shie ld ing
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CR 30-X: Market Position
• CR entry level for the price sensitive customer
• Target groups:- Small imaging centers- Private radiologists
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Workflow (1)
Insert exposed C assettein D ig itizer
Take exposure
Prepare C assettefor next patient
Select Patient and identify
W ait till IP cycle is fin ished517502ah.cdr
1
2
3
4
5
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Workflow (2)
Animation from NX WBT:
“Basic knowledge / System Overview”
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Dealer Contact Partner
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Service KPI's CR30-X
• MTTI (Mean Time To Install) = 0.33 h / one person• MTTM (Mean Time To Maintain) = 1.5 hours incl. Quality check• MTBM (Mean Time Between Maintenance) = 1 year• MCBM (Mean Cycles Between Maintenance) ≥ 12.000 cycles • MTTR (Mean Time To Repair, includes MFDT) < 1.5 h• Service support time, parts availability = End of production + 7 years • MTTT (Mean Time to Train) – technical training = 2 d IBT / 1 d WBT
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Service Strategy
Service Target Groups: • Agfa FSEs• 3rd party and dealer service engineers
One day Installation Concept:• Staging as far as possible• Basic exam tree in English with CR30-X and Drystar 5302• Further adjustments via professional service (Agfa Application
specialist)
Repair:• Replacements mainly on module level (where useful)• No adjustments after replacements (3 exceptions)
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Documentation
Chapter 11"Installation- Planning"
Chapter 9Maintenance
DD+DIS171.09E
Separate available chapters ofthe complete Service Manual
DD+DIS172.06E
Chapter 1"Installation"
Chapter 11"Installation- Planning"
DD+DIS172.06E
Part of Delivery
InstallationProcedure
DD+DIS137.06E
Additional documents:• NX Service Manual• CR30-X and NX User Manuals
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Digitizer Introduction
• Technical Data• Controls and Connections• IP run: Overview• IP run: The major steps• Scan Principle• Stall Detection• Hardware Modules• Electronis and SW Modules• Boot-up• Service Software• Cassettes and IPs
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Digitizer Introduction: Technical Data
Input Voltage: 100 - 240 V 50/60 Hz Pmax: 320 WBootp-Up Time: 60 sec.Weight: 98 kgScan Resolution: 100 μm
More technical data: See Technical Documentation chapter 11, Installation Planning
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Digitizer Introduction: Controls and Connections
Status Indicator Digitizer Status Allowed user action
Blue - Constant Erasure cycle active Wait
Green - Constant Ready Insert next cassette for scanning
Green - Flashing Scan cycle active Wait
Red - Constant Service mode
Red - Flashing Boot-Up
No connection to processing station
Error
Check processing station for further instructions
517511ba.cdr
Intergrounding Connector
FireWire Connector (IEEE1394)
Mains Switch
100 - 240 V / 50 - 60 Hz ACpower supply input
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Digitizer Introduction: IP Run: Overview
517511ag.cdr
Photo M ultip lier In terface (PM I) Board Photo M ultip lier Tube
(PM T)O ptic M odule
Laser D iodePolygon M otor
LaserBeam
Erasure U nit
C assette U nit
C hipR eader
IP Run
Transport U nit
F ireW ireC able toN X W orkstation
LightC ollector
S low Scan U nit
C alibrationBoard
Polygon M irror
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Digitizer Introduction: The major IP run steps
User inserts cassette.
1. Cassette edge sensor detects cassette2. Fixer stepper motor clamps cassette3. Chip reader reads IP data
1
2
3
517502ba.cdr
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4 Locking Motor unlocks cassette shutter(attention: cassette is shown with cover on top side.Actually tube side is on top)
517502bb.cdr
4
Digitizer Introduction: The major IP run steps
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5 Cassette opener motor drives hooks upwards to open cassette shutter.
517502bc.cdr
5
Digitizer Introduction: The major IP run steps
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6 Drawer motor drives drawer unit backwards
517502bd.cdr
6
D raw er docks via m agnets
Digitizer Introduction: The major IP run steps
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7 Drawer Unit draws tray with IP out of cassette
Digitizer Introduction: The 12 major IP run steps
517502be.cdr
7
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8 Roller clamping motor drives lower rollers of transport unit upwards while roller motor starts turning the upper rollers
Digitizer Introduction: The 12 major IP run steps
517502be2.cdr
8
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9 Roller Motor drives IP towards stop at slow scan unit
Digitizer Introduction: The major IP run steps
517502bf.cdr
9
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10 Roller clamping motor releases IP while lift motor drives down upper scan roller
Digitizer Introduction: The major IP run steps
517502bg.cdr
10
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11 Slow scan motor drives lower rollers while lift motor opens upper front rollers and closes upper rear rollers
Digitizer Introduction: The major IP run steps
517502bh.cdr
11
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Digitizer Introduction: The major IP run steps
12 When the IP is completey scanned, the slow scan motor changes direction
517502bi.cdr
12
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Digitizer Introduction: The major IP run steps
IP run back to cassette is similar to IP run forward
Main difference: IP erasure
517502bk.cdr
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Digitizer Introduction: The major IP run steps
Animation from WBT CR30-X“Functional description / IP cycle”
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Digitizer Introduction: Scan Principle (1)
Laser Diode
6 Facet Polygon
Calibration Board517502ae.cdr
EOL Sensor
BOL Sensor
Geometric Correction Sensors (1 to 18)
23
45
67
89
1011
1213
1415
1617
18
1
Laser Diode:- Power max = 45 mWPolygon:- 6 facets- Ball bearings- Run-up period approx. 5 sec.- Follow-up period approx. 10 min.Calibration Board- BOL / EOL Sensor -18 diodes for geometric correction- 2 diodes (BOL and EOL)
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Digitizer Introduction: Scan Principle (2)
Data path from exposure to 16 bit raw image data
517502ea.cdr
Photo M ultip lier In terface
(PM I) BoardPhoto M ultip lier Tube
(PM T)
Im age P late
Laser D iode
LaserBeam
FireW ireC able toN X W orkstation
Light C ollector
C onversion L ight to C urrent
C onversion C urrent to Voltage
C onversion Voltage to D ig ita l Value(Analog - D ig ita l - C onversion)
Polygon M irror
X-R ay
Exposure
S tim ulation (Scanning)
(Phosphorescence)
R ed laser beam
Blue em itted ligh t
Princip le of C R expla ined in the A tom Shell M odel
(Shell like structure of e lectron cloud)
Blue em itted light
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Digitizer Introduction: Scan Principle (3)
Timings
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• Geometric Correction:
Digitizer Introduction: Scan Principle (4)
To correct irregularities in the polygon run, the digitizer measures the timings between the BOL and EOL signal during each scan. Certain irregularities, which may be caused by external vibrations or the polygon ball bearings are smoothed by calculating mean values of several scan lines.
• Jitter Correction:
To correct irregularities in the optical path, the digitizer measures at each boot-up the timings of the laser beam between pin diode 1 and 2, 2 and 3 and so on.As a result a kind of "calibration curve" is created, which corrects possible distortions.
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Digitizer Introduction: Scan Principle (5)
• Synchronization of Polygon, Begin of Scan, Begin of Line and AD Window :
When an IP is inserted the polygon starts up. The BOL/EOL sensors measure the position of the polygon mirrors (they even detect each single facet). When the IP arrives for scanning, the sensors of the calibration board detect the IP edge and generate the begin of scan signal (BOS).The begin of line signal (BOL) triggers a timer for switching on the laser beam and the AD window. The length of the AD window and "Laser On" depends on the image plate size.
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Digitizer Introduction: Stall Detection (1)
Stall detection (= load detection) • Motor stall (home/end position) detection without the use of
additional sensors • Made by evaluation of stepper motor control curve on the
motor controller chip
Advantage (compared to home/end position detection via light sensors):
• Monitoring of motor run not only in home and end position, but also between home and end position (except acceleration / deceleration time)
• Less sensors (costs, reliability) and cabling (costs).
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Digitizer Introduction: Stall Detection (2)
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Digitizer Introduction: Stall Detection (2)
Animation from WBT CR30-X
“Functional description / Stall detection”
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Digitizer Introduction: Hardware Modules (1)
Cassette Unit
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Digitizer Introduction: Hardware Modules (2)
Locking Unit(Part of Cassette Unit)
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Digitizer Introduction: Hardware Modules (3)
Transport Unit
Transport Unit with front rollers removed
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Digitizer Introduction: Hardware Modules (4)
Erasure Unit
Bottom Top
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Digitizer Introduction: Hardware Modules (5)
Optic Module
closedopened
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Digitizer Introduction: Hardware Modules (6)
Slow Scan Module
Top Rear
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Digitizer Introduction: Hardware Modules (7)
PMT with Light Collector
Light Collector
PM T
Blue LED
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Digitizer Introduction: Hardware Modules (8)
Signal correction before scan: AUTOZEROWith laser and blue LED switched off, the system measures the output of the PMT. This value is the AUTOZERO value.Parameters: Noise of the PMT electronics; Remaining light Error message if AUTOZERO value exceeds certain limit (e.g. covers opened)
Signal corrections during scan: AUTOCALDuring laser blank time, till the next facet scans a line, the blue LED is switched on to measure the sensitivity of the PMT. By combining the measured values of several lines the sensitivity is automatically adjusted (High Tension at PMT)
Functions of the Blue LED in the Light Collector
Blue LED
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Digitizer Introduction: Hardware Modules (9)
Animation from WBT CR30-X„Assembly Overview“
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Digitizer Introduction: Electronics and SW Modules
PM I Board( hoto ultip lier
nterface)P M
I
FireW ireInterface
F ireW ireInterface
ASAPPackage*
*ASAP = Agfa Scanner Access Package
N XApplication Software
TW AIN In terface
D igitizer
N X W orkstation
517502ca.cdr
IPH andling
Board
C an Bus
S low ScanBoard
ErasureBoard
PM T
C hipR eader
O pticsPC Bs
U serInterface
C alibrationboard
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Digitizer Introduction: Bootup
Boot-up takes approx. 60 sec.
• During bootup the digitizer status is only displayed at the processing station if an error occurs
• Link to detailed boot-up procedure(see also printed version in TechnicalDocumentation chapter 2; Bootup)
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Digitizer Introduction: Service Software (1)
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Digitizer Introduction: Service Software (2)
• CR30-X Service Client runs on processing station(part of ASAP)
• Started via: Start => All Programs => Agfa CR30-X => Service Client
• Can also be installed on service PC to view e.g. explanation of error code or evaluate Infocounter offline
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Digitizer Introduction: Cassettes and IPs
• CR MD4.0T General Cassette (similar cassette used for DX-S) • CR MD4.0 Image plate (flexible; also used in CR 75.0 etc.)• Tray and Image Plate belong together (= one spare part)• Formats: 15 x 30 cm; 18 x 24 cm; 24 x 30 cm; 35 x 43 cm
Shutter
Lock
517511al.cdr
RF-tag
Tray Metal piece
Metal piece
Im age plate
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Installation Planning
Space required for insta lla tion and repair
Space required for operation
537511ac.cdr
60 [23.6]
> 10 [3.9]
> 50 [19.7]
60 [23.6]
60 [23.6]
60 [23.6]
80 [31.5] 80 [31.5]
* ** * space for cables and airflow** Space for cleaning
Digitizer NX W orkstation
F ireW ire Cable Length = 4.5 m [15 ft]
PC
517511ai.cdr
75 cm [29.5 in] recom m ended
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Installation (1)Installation Prerequisites:1.Check installation site prerequisites2.Unpack digitizer (forwarder!)3.Put digitizer on provided table (forwarder!)4.Check shipment completeness5.Prepare required tools6.Install UPS (Option)7.Connect the cables Installation8. Switch digitizer on9. Load default configuration file on NXCompletion of installation10. Clean image plates11. Check technical image quality of the digitizer12. Test the optional UPS13. Fill in Site Data in CR30-X Service Client14. Run hand-over test15. Hand-over the system to the Clinical Application Specialist16. Fill in "Site and System Data" and "Installation Report" form
517501af.cdr
U SB
to w all outle t
230 V (220 - 240 V) VersionType 5115 - 500i
517511aj.cdr
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Installation (2)
Settings of CR30-X in the configuration screen “Device configuration” of “NX service and configuration tool”
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Troubleshooting
517533ab.cdr
Sym ptom
Repair8 9 Verify Repair
Solution
Sym ptom
Customer information1Get Error Code
Service C lient
Service C lient
Service C lient
In focounterEvaluationin chapter 3.2
R eporting
Analysis & R epair
Analysis & R epair
E rror S tatistics
Expla in E rror C ode
R eboot
R efer to chapter 3 .5,R eplacem ents
Perform verification as ind icated in chapter 3 .5, R eplacem ents
2
3
Service C lientG enera l D evice In fo
Infocounter
Get Infocounter
7 Check Error CodesCheck suspiciousInfocounter entries
6
5
Defect
Reboot
M ED N ET, G SOC om puted R adiography
C R D ig itizersC R 30 - X
Troubleshooting G uide
ConsultTroubleshooting Guide
4
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Repair
• Calibration & Adjustments• Spare Parts• E-Labels• SW Update/Upgrade
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Repair: Calibrations and Adjustments
Adjustment To be done in case ....
Drawer Unit Height Adjustment After replacement of the drawer unit
PMI board carrier position adjustment After replacement of the PMT with light collector
Cassette edge sensor position adjustment
After replacement of cassette edge sensor
Exceptionally:
Cassette unit open safety switch position check
After replacement of cassette unit open safety switch
Details see chapter 3.6, Technical Documentation
Calibration To be done in case ....
Shading calibration After replacement of the PMT with light collector
After replacement of the optic module Whenever the PMT or light collector have
been removed (e.g. for replacing the slow scan module)
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Repair: Spare Parts
• Alltogether 34 Spare Parts (Status 07/2006)• Recommended spare part:
"Small parts Kit, CM+XYZ"• Repairable parts (to be sent back):
• Optic module• Slow scan unit• Cassette opener unit (with IP handling board)
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Repair: E-Labels (1)
• Following PCBs are equipped with E-Lables:• PMT• PMI Board• Slow Scan Board• IP Handling Board• Optic Module PCB
• E-Label contains module specific data
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Repair: E-Labels (2)
1. Spare part (e.g. Slow scan board) is part of a larger module and requires module specific data:
• E-Label on Board gets SN 9999 in production
• This is the trigger for the processing station to copy the module specific data to the E-Label of the board.
Two exchange scenarios: Examples:
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Repair: E-Labels (3)
2. Spare part is an adjusted module (e.g. slow scan unit) which has its own module specific data:
• E-Label on Board gets SN 2345 in production (2345 is just an example)
• This the trigger for the processing station to copy the module specific data from the E-Label to the processing station for backup reasons
Two exchange scenarios: Examples:
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Repair: E-Labels (4)
Consequence of the two exchange scenarios:
Following kinds of exchange are not allowed:
• Do not use a "Slow scan board" or "IP handling board" from another digitizer.
• Do not use a "Slow scan board" which is originally part of a spare "Slow scan module" to exchange the "Slow Scan board" only.
• Do not use an "IP handling board" which is part of a "Cassette fixation unit" to replace the "IP handling board" only.
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Repair: Software Update/Upgrade
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Maintenance
• Each 12.000 cycles / once a year• Indicated via message at processing station
(can be de-activated: CR30-X Service Client Maintenance Indicator)
• No preventive replacements !• Main Tasks
• Get digitizer status (Infocounter evaluation)• Clean digitizer inside• Check and clean image plates• Check Image quality