CL30 / CL31 Multispeed
Contents
1. ELECTRON CORPORATION CL30 CL31 Multispeed Centrifuges SERVICE MANUAL 11290092 CAREFULLY READ THIS MANUAL AND THE OPERATING MANUAL BEFORE REPAIRING YOUR INSTRUMENT THIS DOCUMENT IS PROPERTY OF THERMO ELECTRON CORPORATION it may not be duplicated or distributed without the owner s authorisation The validity of the guarantee is subject to the observation of the instructions and precautions described in this document CL30 CL31 Multispeed Service Manual 11290092 1 Revision Status REV DATE AMENDED PAGES NOTES April 2006 Initial release CL30 CL31 Multispeed Service Manual 11290092 2 5 L INTRODUCTION 4 14 p P aaa 4 22 Biological Risk saa Kapa a eoi eod epe dt d etat ett des 5 3 DESCRIPTION AND THEORY OF OPERATION eene neen nennen trennen nre nennen tenente trennt 6 3 1 E E 6 32 Specficatl n aazosesostiecameidteonmetat peor ipic bo aed pni ot boa n a bots 6 3 3 Installation precautions co Sho Bedae OR etd paier E a 7 3 4 Component layout oe ER atre DA RR ERE UH EC Seek bee desde eee Eo eben PUR ee Ud 8 3 5 Mains front end fU he e e a efte hana ep CE 82. 10 100 rpm incr Acceleration profiles 5 shapes selectable Deceleration profiles 4 shapes 1 free coasting selectable Settimer from 0 30 min up to 99 min Pulse key Momentary Spin Electronic accelerometer imbalance detector Three Phase Induction Motor Direct drive 3 3 Installation precautions The centrifuge is designed to be safe under the following conditions Indoor use Altitude up to 2000m Temperature from 5 C to 40 C Maximum relative humidity 80 for temperature up to 31 C Mains supply voltage fluctuation up to 10 of the nominal voltage A Incorrect installation will affect safety and equipment performances REFMERGEFORMATThe machine must be installed in a dust and non corrosive environment 1 The Bench top must be rigid sufficiently strong and levelled 2 300 mm of free space gap must be left on each side of the machine behind to ensure the proper ventilation N AN Fig 1 The centrifuge could move as a result of rotor imbalance rotor disruption or drive failure To avoid dangerous consequences a safety envelope clearance around the unit must be respected CL30 CL31 Multispeed Service Manual 11290092 7 34 Component layout Inlet appliance Imbalance sensor Asynchronous motor Centrifugation chamber 3 5 Mains front end rack Lid lock solenoid Display assembly keyboard uP PWR board Gas
3. 105V and Power control 120 Lid switch solenoid switch and solenoid Compressor command Ling Motor command thermoswitch 127 not used m BD Flat Cable Flat Cable 35 Display Keyboard Ex Power Y uie white KZ f bil sd Le Y Orang 47 Reed Ll b switch AN 12VDC Red Black 3X creen Motor brake Au Lid switch Drawn by A Frollo venea A Frollo Thursday September 22 AUTOFORMER 660VA Brake resistor ellow 100 ohm 100w 0 Power rectifier 903203 eier in whale or pan ol is design fede AN are reserved to Jouan lla Sr
4. go LA CL30 CL31 Multispeed Service Manual 11290092 9 37 Management of the induction motor 3 7 1 Introduction The CL30 CL31 centrifuges is equipped with an asynchronous 3 phase induction motor During operation the control electronics generates a system of sinusoidal 3 phase voltages variable in amplitude and frequency During the braking phase the energy generated by the motor is dissipated through a resistor 3 7 2 The motor It is an AC Induction Motor called squirrel cage motor is yy comprised of a simple cage like rotor and a stator containing three windings The changing field produced by U the AC line current in the stator induces a current in the CS rotor which interacts with the field and causes the rotor to rotate No brushes are necessary in this design The base speed of the AC motor is determined by the number of poles built into the stator windings and the frequency of the AC input voltage Variable speed control of an AC motor can be accomplished by increasing or decreasing the input frequency A load on the motor causes the motor to slip in proportion to the load Fig 5 3 7 5 Power control operating principle It consist in a single phase rectifier in case of 100 120V is used in the voltage doubler configuration which converts the AC single phase source in a DC supply Electrolytic capacitors are used to provide energy storage for the DC sup
5. spring 47 2 A ES em cor 2 L1 un Ar Ld Ge 3 5 7 X Fig 3 Appliance inlet and fuses holder Q Terminal block Fast on Mains transformer CL30 CL31 Multispeed Service Manual 11290092 Protective conductor terminal Mains filter 3 6 Functional principles The microprocessor system controlling the CL30 CL31 centrifuges ensures the following functions Operator interface management The operator interface composed of a LED display and a keyboard enables programming of the centrifugation parameters and visualisation of operating conditions in real time Rotation speed servo control management From a tachometer signal the microprocessor calculates in real time the controls to be applied to the power components to perform as programmed rotor type identification maximum speed restriction acceleration and braking profiles rotating speed g force time Management of the safety devices The control system manages all the safety devices lid locking system imbalance detection system Zero speed detection system motor over temperature detection system over speed control KEYBOARD DISPLAY j 88 8888 BB FLAT CABLES T T uMCROINLM z 11 MICRO INT Ki EE A ELECTROMACNET I E UU n
6. the level of noise immunity The power supply for this part of circuits is 12 Vpc Note In case of replacement of MOTOR or uP PWR it is mandatory to have the proper jumpers configuration The motor with magnetic speed sensor REQUIRES Jumper ST2 Closed short circuit Jumper ST3 Open AREA 3 AN CAUTION RISK OF ELECTRIC SHOCK Includes all the power circuits and it is directly connected to the mains Main function are DC bus 320 Voltpc the incoming AC power is rectified and filtered to supply the 3 phases motor inverter optical insulation barrier which provides protection against electric shock between life parts and microprocessor circuits Three phase inverter consisting of six IGBT one package module and his control logic circuit Motor brake IGBT 3 8 4 Imbalance detector The imbalance sensor detects the mechanical vibration of the KN motor which are converted in electric signal managed by the microprocessor In case of anomalous vibration the run is aborted Imbalance sensor connector J4 uP PWR board pin 1 Power Supply 12V pin 2 GND pin 3 SIGNAL CL30 CL31 Multispeed Service Manual 11290092 12 3 8 5 Speed sensor Itis a magnetic encoder system based on aluminium disk holding two magnets and Hall effect sensor underneath see Fig 13 Magnetic sensor connector J7 uP PWR board pin 1 GND pin 2 SIGNAL pin 3 Power Supply 12V selected by Jum
7. the locking plunger out Replace the new solenoid reversing the steps Verify that the locking plunger is moving freely CL30 CL31 Multispeed Service Manual 11290092 21 5 10 Electronic rack and Mains front end rack removal see Fig 16 On the Electronic rack are located the uP PWR board the motor contactor and the brake resistor behind the uP board Remove the uP board to access the brake resistor On the mains front end rack are located the mains inlet socket with fuses the line filter the terminal block and the mains transformer To replace one of those components the rack must be removed EET SS pea EF Jeol MA Op m O n gt a ant d PON zi d m TEN M E A coo BB ERO HH ERR 8 NGA S LL am TET O 3799 7 Fig 16 1 Remove the front panel see par 5 1 2 Disconnect the wire harness to the contactor 3 Disconnect all cable uP PWR board and the protective earth wire 4 Remove the electronic rack unscrewing the 4 screws located on the bottom of the centrifuge 5 Unscrew the Mains front end rack 2 screws on the rear panel and 2 screws located on the bottom of the centrifuge 6 Slide out the Mains front end rack 5 11 Gas spring replacement 1 Remove the front panel see p
8. 3 6 Functional principles uis eee et Het ea ep boda e rubet ee e e arte lar te pero 9 3 7 Management of the induction motor nete nennen nana nete trennt 10 3 7 1 ge tee 10 3 7 2 Re E 10 3 7 3 Power control operating Dripnciple eene nnne enne nre 10 o MB ron MM 11 3 8 1 Generality Sine eee ne a RR AO TR I UE ER a E 11 3 8 2 Differences between models 230 120 100 01 22 2 2 2 000000000000000000050 nean eee 1 3 8 3 Micro Processor t PWR board uidit eR peii en Re eerie 11 3 8 4 Imbalance detector irr et t nte to t e Ae exi iter atte et 12 3 8 5 Speed sensor x aae ci d ente eem euis ad ee e Bile a a ete eite abe entes 13 3 8 6 Inputs Outputs connection boe rte nete Doe e oet T DIE eee ERUN dr aga as 14 4 DIAGNOSTICS AND REPAIRS iiiter etude ERR TERR RO REEL e ERROR EORR 16 4 1 Introduction he Akai ee e Pere eb d en dede med denotes 16 42 EE 16 4 3 Error codes and messages 2 oe Hi a m eee RU e ree teer erste ebrei teret 16 5 5 PROCEDURES ra led tesa ede Ted GA eve de apes 17 5 1 Front panel EE 17 5 2 ladiepl c ment see Fig 11 sisi hes e rac p bed e E ed br 17 53 Centrifuge bowlremoval see Fig 11 ote n Eee bte qo trei ee e Eher EE 18 5 4 Imbalance sensor replacement see Fig 12 18 5 5 Motor
9. acement amp 2 Disconnect the Fast on connectors Remove the two screws that secure the switch in place 2 Reposition the new switch securing it with the screws Connect the Fast on connectors Test the lid latch use a multimeter to measure resistance across the switch leads Switch should read open when the cover is open closed when the cover is closed Switch 2 should read open when the cover is open closed when the cover is closed reed relay should read closed when the solenoid is activated 5 9 2 Latch replacement 1 Remove the lid latch assembly as described in par 5 7 2 Extract the Quicklock Benzing 3 Unscrew the nut 4 Extract the screw 5 Unscrew the nut 6 Remove the cam 7 Unscrew the nut underneath the cam 8 Extract the screw 9 Remove the latch 10 Replace the latch in the same fashion reversing the steps 5 9 3 Reed relay 13 Remove the two plastic screws Unsolder the wire harness Replace the sensor reversing the steps Test the reed relay use a multimeter to measure resistance across the sensor The reed relay should read open when lid is open and the unit is not powered The reed relay should read closed when the solenoid is activated during centrifugation 5 9 4 Solenoid 14 Remove the lid latch assembly as described in 5 7 Disconnect cutting the wiring to the solenoid Unscrew the two fixing screws latches side Slide
10. ar 5 1 2 Remove the centrifuge bowl see par 5 3 3 Remove the Electronic rack see par 5 10 4 Remove the Mains front end rack see par 5 10 5 Remove the gas spring unscrewing the bolt located inside the centrifuge underneath the protective ring 6 Replace the gas spring reversing the steps CL30 CL31 Multispeed Service Manual 11290092 22 5 12 Micro Processor PWR board replacement Remove the front panel see par 5 1 Disconnect all cables and wire harnesses from the board Remove the board unscrew the 5 nuts Replace the board reversing the steps A Don t forget the plastic insulation foil Mylar between the chassis and the board Fig 17 5 13 EPROM replacement It is not required to remove the P PWR board for the EPROM replacement A ATTENTION STATIC SENSITIVE Proper handling and grounding precaution required FOR EPROM REPLACEMENT USE ONLY THE SUITABLE EXTRACTOR DURING REPLACEMENT OPERATION KEEP THE EPROM PARALLEL TO THE SOCKET INSERT THE NEW EPROM KEEPING THE KEY SLOT TOWARDS THE MICROPROCESSOR ALWAYS USING THE EXTRACTOR Unplug the unit Remove the front panel see par 4 1 Replace the EPROM Perform the Memory Reset and the Imbalance calibration as described in par 6 CL30 CL31 Multispeed Service Manual 11290092 23 6 DIAGNOSTIC AND CALIBRATION PROGRAM The centrifuge has a built in diagnostic progra
11. ccidental spreading of biological agents out of working place Arrangement of suitable procedures and systems for conservation handling collecting and transporting inside and outside working place safe discharge of biological material used and periodic check of an eventual presence of pathogens inside working place To satisfy partly requirements mentioned before Thermo established a Declaration of Decontamination which must be filed in by final user before sending the centrifuge to a Technical Assistance Centre The principle that inspires this declaration is awareness that user only knows what has been put into the centrifuge and who handles these substances only is able to choose and use suitable product for decontamination Obviously this assumption of responsibility by final user does not relieve maintenance personnel of adopting protection measures against residual risk eventually occurring when handling a product that conditions of use are unknown Anyway residual risk can be further reduced by means of Individual Protection Devices gloves lattice made not yet used masks safe glasses CL30 CL31 Multispeed Service Manual 11290092 5 3 DESCRIPTION THEORY 3 1 Description CL30 CL31 centrifuges is designed to separate substances made of different density elements by Relative Centrifugal Force RCF Different rotating equipment can be used in order to match the sample contain
12. eed is zero motor has been found in rotation Press any key to clean the message Lid unlocked during a run Run stops Operations are not allowed until the motor speed is zero Press any key to clear the message Motor over temperature above 130 C The run is interrupted It is not possible to restart until the error condition is removed Solenoid error reed relay Note wait for motor cooling down Lid unlocked At centrifugation start the It is impossible to START lid has been found open or unlocked Close the lid or check if the lid is properly locked the message will be automatically cleared Imbalance detected Run stops Operations are not allowed until the motor is stopped Press any key to clear the message Check the rotor load Programmed speed is wrong Speed digits are blinking audible alarm The programmed speed is over the Speed limit are at maximum speed allowed for the rotorin 4 100 rpm or 10 000 rpm or 14600 rpm use CL30 CL31 Multispeed Service Manual 11290092 16 5 REPLACEMENTS PROCEDURES N BEFORE ANY REPLACEMENT PROCEDURES CAUTION DISCONNECT THE MAINS REMOVING THE POWER CORD FROM THE CENTRIFUGE 5 1 Front panel removal Removal of the control panel allows access to many internal components Follow this procedure to remove the front control panel 1 Unplug the unit 2 Remove the 5 screws from the top and bottom edge of the front panel LL 3 Disconnect the wire harn
13. erat eee 27 8 1 Centrifuge spare partsi Deben Ub aen PHA AMAR D AID 27 8 2 Electronic rack spare parts cien eter e ee efe eec i Pe ire eec ere peret ere 28 8 3 a eae tee ee tele Cb deo Baa Gh eee ies 29 84 adlatchspare p rts eoe Eee eot ne oe ta RR tpe Reels 30 85 Frontend spare parts cec eee i Re die tee ed ec e nr e eode el 31 Sp Transformers for 100V version ues eee epe ee qa trem LUE ER E ENENGE EE AN aa Ga agi 31 8 7 Rotors and ACCeSSOLIES ioi ce ien e ce ert e re e Op oes eee Vi ce ep ee 32 97 s Appendix T oon e TERRE RS enata Eo ne RN eras 33 9 1 Wiring diagram 230 V version 50 60Hz AA 33 92 Winng diagram 120V version 6 eo e EA KEN en E T cena Ee gak daka 34 9 3 Wiring diagram 100 version 50 60Hz nne nana sg ne Ba nnne eene AAN NE rosei 35 CL30 CL31 Multispeed Service Manual 11290092 3 1 INTRODUCTION 1 1 Purpose This manual contains maintenance instructions for CL30 CL31 Multispeed centrifuges and is intended for use by a qualified maintenance or service technician We suggest reading also respective Operating Manual It is organised to provide maintenance personnel Thermo or authorised service organisation with basic data and information on the theory of operation to assist in troubleshooting it outlines parts replacement and calibration procedures for pu
14. ers and the required performances The maximum speed and by consequence the resultant RCF is a function of the rotor in use swing out rotor can usually carry an higher load than fixed angle or aerodynamic rotors which can spin at higher speed For more information on operating principle refer to the User s Manual 3 2 Specification Dimensions Height H 37 5 cm Width W 40 cm Depth D 48 cm Packaging HxWxD 48 x 54 x 61 cm Weight Net weight 40 kg Net weight including packaging 45 kg Centrifugation characteristics Max allowable capacity swing out 4 x 280 ml fixed angle 0 6x50 ml CL31 6x94 ml Max allowable density 1200 kg m Max allowable weight 1 34 kg Max speed swing out 4100 rpm fixed angle CL30 6500 rpm CL31 14600 rpm Max RCF at Tip swing out 3176xg fixed angle CL30 5300 x g CL31 23113 xg Working temperature Ta AT Max noise 63 dBA Electrical characteristics Operating voltage 230 10 50 60 Hz 120 10 60 Hz 100 V 10 50 60 Hz Operating current steady acceleration V Mains 2 8 Ams 5 5 Arms 230 4 3 Ams 9 5 Arms 120 V 4 9 Arms 10 5 Arms 100 V Power max steady 350 W Power max acceleration 500 W Heat dissipation 1195 BTU h CL30 CL31 Multispeed Service Manual 11290092 6 Other Characteristics Microprocessor controlled 5 quick selection programs control Work temperature Tambient AT Set reading speed 500 14600 rpm 500 6500 rpm for CL30
15. esses the mains switch wires the Flat Cables the display power supply cable the protective earth wire The two Flat Cables can be disconnected either from the uP PWR side connectors P1 and P2 or from the front panel it is better to disconnect all of them from the same side to avoid errors during refitting Disconnect the display power supply cable red black from the front panel 5 2 Lid replacement see Fig 11 Open the lid Remove the spring pin from the gas spring Unscrew the five screws connecting the lid to the lid hinge Remove the lid Replace the lid in the same fashion reversing the steps FIXING SCREWS MUST BE CONSIDERED AS A COMPONENTS MECHANICAL SAFETY CHECK CAREFULLY THAT THEY HAVE BEEN STRONGLY TIGHTENED CL30 CL31 Multispeed Service Manual 11290092 17 Centrifuge bowl removal see Fig 11 5 4 Remove the spring pin from the gas spring Remove the bowl gasket and unscrew the 3 screws from the centrifugation chamber top Remove the bowl motor gasket Remove lifting up the centrifugation bowl Imbalance sensor replacement see Fig 12 pU UI D 5 5 Remove the bowl see paragraph 5 3 The detector is located on the motor counterweight Unscrew the 2 screws and remove the sensor Unplug the wire harness from the uP PWR board J4 Replace the sensor in the same fashion reversing the steps Perform
16. first calibration cycle 2500rpm 50 sec will start A The rotor must be balanced The difference in weight between buckets should be maximum 0 5 grams 6 At the end of the run the imbalance level measured is displayed n b lA AN 2010 For a balanced rotor the value detected shall be 200 If the value is gt 200 and the rotor is balanced the sensor could be defective 7 Load bucket n 1 with the calibrated weight 17 grams co Mylar 8 Press the pulse button whe secon calibration cycle will start 2500rpm 50 sec At the end of the run the imbalance level detected will be displayed A The imbalance level must be between 300 and 700 9 Exit from Diagnostic and calibration Program Press the button Stop to exit from 30 CL31 Multispeed Service Manual 11290092 25 7 MOTOR VERIFICATIONS 71 Motor checking Simple electrical tests suggested to verify the status of the motor use a multimeter to measure resistance across the motor windings Check 1 Electrical continuity between all the two phases combinations In case of open circuit the motor will not run 2 Resistance of two phases values must be 70 2096 3 The difference between two phases should not differ more than 0 20 If not the motor doesn t run smoothly jerks 7 2 Centering device assembly Verify 1 the correct washers sequence 2 the free movements of the washer
17. m which can be accessed by pressing a combination of buttons at power on 6 1 Access to the Diagnostic Menu 1 At power on while the buzzer is activated press simultaneously the buttons acceleration and deceleration ramps SOFT 2 The display will show uiu t Jo 3 Memory Reset Keep pressed simultaneously 3 sec the buttons Pulse and SPEED A The default imbalance level 350 is us loaded A After a memory reset is mandatory to proceed with the imbalance calibration 4 Solenoid test Pressing the button user s program 2 the solenoid will be powered e 5 User s programs reset Pressing the button user s program 4 the User s programs will be cleared 6 Imbalance calibration menu Press the Start button to access the Imbalance calibration menu 7 Exit from Diagnostic and calibration Program Press the button Stop to exit from 0 CL30 CL31 Multispeed Service Manual 11290092 24 6 2 Imbalance Calibration 1 At power on while the buzzer is activated press LA NI simultaneously the buttons acceleration and deceleration SOFT 2 The display will show 111018 3 Second menu Press the Start button to access the Imbalance calibration menu 4 The display will show 5 Install the rotor TA0 unloaded and press the Pulse button The
18. mod 1 AG 10 Ov AS OL Aejdsip pieoqhay 10 OWA FC 59A EL ndino our Ir aqoid ER Josuas Fig 10 52 CL30 CL31 Multispeed Service Manual 11290092 4 DIAGNOSTICS AND REPAIRS 4 1 Introduction The CL30 CL31 centrifuges has some built in functional tests which facilitate checks such as for the tachometer generator and lid lock solenoid In case of anomaly the display shows error codes combined with an audible alarm 4 2 Messages At power on The TIME display shows the CENTRIFUGE MODEL CL30 CL31 The SPEED display lights all the segments 88888 The TEMPERATURE display shows the PROGARM EPROM REVISION A B C 4 3 Error codes and messages When a problem is detected an error code combined with audible alarm is displayed According to the severity of the anomaly the run can be aborted in this case the centrifuge stops automatically For the details refer to the following table CODES REASON 1 1 COMMENTS EXIT Speed zero The information from tachometer is considered During rotation the speed has been unreliable The cycle stops without braking suddenly measured zero Speed error Values of successive The information from tachometer is considered speed measurements are too different unreliable The cycle stops without braking Rotor is spinning At power on the The lid can be open when rotor sp
19. nce incompetence and more frequently than you might think as a consequence of extreme familiarity with biological risk attitudes which bring to underestimate the risk of exposure to pathogens It is not possible to carry out effective techniques of biological risk containment without taking into account previous attitude of final user Any prevention and biological risk containment program has to be based on correct information and training aimed to make all people concerned adopt ways of acting so that risk of auto contamination and contamination of working area is reduced to the minimum Potential exposed people directly or no directly concerned in lab activities are usually researchers lab technicians but also cleaning staff maintenance personnel no technical personnel employees storekeepers drivers caretakers etc occasional visitors agents visitors etc and in case of accidents or disasters rescue service firemen stretcher bearers doctors policemen civil defence etc Technical organisational and procedural measures for biological risk containment according to Art 79 of D L 626 94 must include Evaluation of the danger level and quantity of biological material handled A careful planning of working process to reduce or avoid the use of harmful pathogens and to reduce the number of exposed people The choice of technical measures of protection collective and individual as well as hygienic ones to prevent an a
20. noid command J10 10 8VAC Motor 15V Display 12 Motor brake Compressor Bommarid exPower TT not used power rectifier Jn J16 34 P2 Display and Keyboard DC Brake resistor jelow 0 100 ohm Orange 100w 0 Reed switch Red Black Power rectifier Solenoid Green while IN n Lid switch Dri b ck A Frollo 120V 60 Hz General wiring diagram m 902578 re reroducton in whole or partot his design Is fortiden are reserved o Jouan tala S 9 3 Wiring diagram 100 version 50 60 2 2 6 fuses Line filter Brown e S Brown e E 1 I N LOAD2 Blue 1 Bh 1 4 Rack Terminal Block LOW VOLTAGE TRANSFORMER CMC35 Document number Eyelet Faston Braided sleeve CL30 CL31 Service Manual 902971 rev 1 board Main switch Brown ES Blue Ps Front panel Encoder Thermoswitch Contactor swig D Imbalance 2 sensor d green red reng swi7 broyn or Brown 502577 Rita PMR 209 blue P2 48 not used Imbalance 7 sensor not used 5 keyboard and pilot leds Display
21. ntrol _ 230V Lid swilch solenoid switch and solenoid Motor command thermoswitch 12 dio Flat Cable Flat Cable Display yel DI o ck ckl TES 2 Wo ocr 105 15 12VDC brake A Compressor Line resistors not used power Ext Power rectifier 2 E 5 mg 5 5 33 2 Display and Keyboard Reed switeh Red Black Solenoid Black white Brake resistor een Power rectifier 100 ohm 100w 9 2 Wiring diagram 120V version 60Hz tuses Line filter Main switch L LOAD1 aen Brown No Brown T angi Blue i Blue N LOAD2 Bhs Main earth rack Basement Rack Terminal Block cmc35 TRANSFORMER Eyelet Faston Bralded sleeve EMBED CL30 CL31 Service Manual 902971 rev 1 Front panel Encoder Imbalance sensor brown 4 Thermoswitch Contactor 1 10 Brown Rila 209 MC sensor 13 not used Imbalance not used Encoder keyboard and pilot leds the lotor emoswich H CPU and Power control 120V Lid switch solenoid switch and sole
22. per ST2 pin 4 Not used Optical sensor connector J7 uP PWR board pin 1 GNDsienat pin 2 SIGNAL 3 GND vce selected by Jumper ST3 pin 4 Photo diode Supply CL30 CL31 Multispeed Service Manual 11290092 13 3 8 6 Inputs Outputs connection 230V version 10 0uJ aunyesaduuapaao gt 8 8 0 or pl 0 po uo 0 1922 ndu cr bir Er P aqoid CR Josuas a2ue equi Pumeg 0 5 pah i am 1 nu ei n EL 8 181814851 01552 ces 8 MM cers JOJO OY 01 vir CP Se A TTE 07 1 422 kota l 3 ____ a aT p 44 5 Jamod 1 Dipogia AG Jo OvAS OL Aejdsip pueoqkay 10 OWA rc indu 55A EL ndino Ir cr Fig 9 14 CL30 CL31 Multispeed Service Manual 11290092 120 version 1015158 01 EU JOJO 9Y 01 rir 1040 ainjesadiuapaao 0 gr DI seus 0 jer 20 gouo eBpuq 3Y ACL Indu 187211 Jepooua gif ci D EE gp 80 4 ap r eh JL dL ese EC gt 5 E 4 Safe oo mq s 7 sce OSES T CARS ESCH CH gawan as 4 lj si LLLI Zr ddns Ja
23. per rotor load 3 8 2 Differences between models 230V 120V 100V The main difference between 230V and 120V is on the input stage of the motor power control As mentioned in par 3 7 3 the single phase rectifier in case of 100 120V is used in the voltage doubler configuration The bridge rectifier is onboard for the 230V version located on the electronic rack see 5 10 for the 120V So two different uP PWR boards are used The 100V is derived from a 120V using at step up transformer located inside the centrifuge Wiring connection are reported in Appendix 1 par 9 3 8 3 Micro Processor PWR board 3 distinct areas can be identified on this board Each of the 3 areas has its own power supply Insulation between the different parts is ensured by the use of opto couplers REFFig 7 0 4 e Cy AAN 1881 L Jm BA ef zh JDUAN 852326088 AREA 1 CL30 CL31 Multispeed Service Manual 11290092 11 It includes the microprocessor the EPROM the RAM memory and the backup battery The power supply for this part of circuits is 5 AREA 2 It consist in sensors interface and signal conditioning circuits including the Opto couplers which improve
24. ply A three phase inverter consisting of six IGBT is used to drive the motor Three phase AC is then generated by using sine wave pulse with modulation The microprocessor controls the voltages and frequency of the AC output supplied to the motor Because AC motor under sine wave excitation are also capable of generating a dynamic brake is used When the speed command is reduced in an AC drive the motor will regenerate The real part of the three phase power flows from the motor to the inverter This results in current flowing from the inverter into the DC bus capacitors Because this energy cannot flow back into the AC supply it must be stored in the capacitors or dissipated through a brake resistor if the voltage will rise over the defined safety level DC BU WS E FC 3 e i O Fig 6 CL30 CL31 Multispeed Service Manual 11290092 10 3 8 Electronics 3 8 Generality Electronic consist in two boards uP board equipped with 16bit micro controller located behind the front panel see REFFig 2 n The centrifuge management program is stored EPROM memory configuration data are stored in non volatile RAM User interface display and a keyboard attached directly on the rear of the front panel see fig REFFig 2 6 The imbalance sensor is fixed on motor counterweight trough elastic suspension see REFFig 2 number Q it detects motor vibrations usually caused by impro
25. replacement see Fig HU eut deed teo tede o te e eee petet 18 5 6 Speed sensor and shock absorbers replacement see 13 19 9 7 Tadlatchassembly ueterem ope UG ORO HE PR PUR 20 5 8 Replacement of the lid latch assembly ame e Ah aa YE ANGE 20 5 9 Replacement of lid latch spare parts 21 5 9 1 Micro switches replacement Ar OI 21 5 9 2 Latch replacement e aed ee NO n TRO ertet e a gee DR eu 21 5 9 3 Reed relay 13 reap er EESTI Ra Re GERE EA ERES 21 5 9 4 Sol n id tpe be GAMA eet e interest dae beret eme iste 21 5 10 Electronic rack and Mains front end rack removal see Fig It 22 5 11 Gas Spring replacement neg ee e Pe rA tese il 22 5 12 Micro Processor PWR board replacement essent nre enne enne net nee ennn trennen 23 5 13 EPROM replacement eater het Ee Eee b EET up e tes b RR RUE 23 6 DIAGNOSTIC AND CALIBRATION PROGRAM AAA 24 6 1 Access to Diagnostic EE 24 6 2 Imbalance Calibration iere beau ee De d E Erit ete ber dr deret 25 T MOTOR VERIFICATIONS Ega hp e iere n o e eerte pfe eg EE teehee Po cnn 26 7 1 Motor checking 26 7 2 Centering device assembly m he pend p nde reed E perio 26 8 PARTS EIS irte ur tt fem o the d de
26. rsing the steps 7 Replace the sensor reversing the steps 8 Replace the encoder disk reversing the steps AN Screws 0 10 must glued using Loctite 243 Fig 13 CL30 CL31 Multispeed Service Manual 11290092 19 57 Lid latch assembly The latch assembly consists of the handle two latches 2 switches a linkage locking solenoid and a reed relay The cover strikers engages the latches and when the latch is locked in the closed position disengage the two switches The solenoid when is not activated locks the linkage movement The switch senses the status of the cover open closed the reed relay senses if the handle and the linkage is locked 5 8 Replacement of the lid latch assembly 1 Open the lid Remove the front panel unscrewing the five screws see Fig 11 and disconnect the mains switch wires the Flat Cables the display power supply cable the protective earth wire Disconnect the lid latches assembly from the uP PWR board J10 Unscrew the four Phillips screws Remove the lid lock mechanism support Reassemble reversing the steps with the new lid latch ensuring the alignment to get the proper latching Fig 14 Fixing Phillips screws Q Solenoid micro switch 0 Lid micro switches Solenoid Lid handle CL30 CL31 Multispeed Service Manual 11290092 20 5 9 Replacement of lid latch spare parts Fig 15 5 9 1 Micro switches repl
27. s 3 the washers must be properly greased CL30 CL31 Multispeed Service Manual 11290092 26 Washers sequence n 1 Flat washer n 2 Spring washers 1 Flat washer n 2 Spring washers 1 Flat washer n 2 Spring washers 1 Flat washer Fig 18 8 SPARE PARTS LIST 8 1 Centrifuge spare parts mh 25535010 Tool to open the unit without power 11202979 Tool to remove the rotor 85480453 Magnetic plate 86000692 Drain Tube gj Meet 86003202 for drain tube 86005398 Grease for buckets ee Fig 19 Mains switch Keypad membrane CL30 Keypad membrane CL31 Display board Lid Assy 85240195 Latch strike hook Lid hinge 26962012 Gas spring Centrifugation bowl chamber Bowl gasket Bowl Motor gasket ch 2 CL30 CL31 Multispeed Service Manual 11290092 27 8 2 Electronic rack spare parts SE Fig 20 Fig 20 0 049040 ner Electronic rack kit of components 230V Fig 20 O 89003436 uP PWR board 230V NEW MOTOR tested for Sn 305100385 Fig 20 89003463 uP PWR board 230V OLD MOTOR tested for Sn 305100385 Fig 20 86004585 Contactor 230V Fig 20 86001432 0 049040 Electronic rack kit of components 100 120V Fig 20 uP PWR board 120V NEW MOTOR
28. ssories DESCRIPTION ay 11210435 T41 Swing Out Rotor 11210246 541 Swing Out Rotor 4x200ml 11175750 T20 Microtiter Plate Rotor for 2 x 3 Plates 1157xg 11175755 AC15 4 Angle Rotor 30 x 15ml 17 5x100mm 11175756 AC100 10 Angle Rotor 6 x 100ml 38x101mm CL31 only 11175754 AC50 10 Angle Rotor 6 x 50ml 11175741 AC2 14 Sealed Angle Rotor 24 x 1 5 2ml 11x39mm CL31 only 11175743 DC6 11 Drum Rotor 6 Micro tubes Racks mE CL31 only 11210351 AC2 13 Sealed FiberLite Angle Rotor 48 x 1 5ml MI CL31 only CL30 CL31 Multispeed Service Manual 11290092 32 9 APPENDIX 1 9 1 Wiring diagram 230 V version 50 60Hz 2x4AT fuses Line filter 3A t Brown gt E T TT N LOAD2 Blue Main earth rack Basement bad o Eyelet Fason Braided sleeve EMBED CL30 CL31 Service Manual 902971 rev 1 Front panel Brown Main switch Brown Blue Blue Encoder Thermoswitch Imbalance sensor blue Brown 507 Contactor swig Blue green Green Red Rita PMR 209 MC VC Lir as E 13 not used Imbalance sensor used a keyboard and pilot leds Encoder CPU and Power co
29. tested for Sn 305100385 Fig 20 uP PWR board 120V OLD MOTOR tested for Sn 305100385 Fig 20 Fig 20 Fig 20 11250210 EPROM programmed CL31 doesn t contain eprom CL30 CL31 Multispeed Service Manual 11290092 28 8 3 Motor spare parts Fig 21 See Fig 21 Fig 231 90096 11250172 Shaft accessory Kit Fig 21 Spring washer 6 Fig 21 Fig 21 86005398 Grease 1 See Fig 22 11250204 Fig 22 Fig 22 Fig 22 Fig 22 Fig 22 9 Setofsews CL30 CL31 Multispeed Service Manual 11290092 29 84 Lid latch spare parts Fig 23 Reference DESCRIPTION Fig 23 11202913 LidLatchassy 1 Fig 23 86001406 Lid micro switch 1 Latch a Solenoid switch Reed Relay Solenoid Solenoid Spring Fig 23 11250207 Spring Fig 23 0 11201156 Fig 23 O 85440203 CL30 CL31 Multispeed Service Manual 11290092 30 8 5 Mains front end spare parts 1 39902981 Mains front end rack kit of components 230V Fig 24 86004803 Toroidal transformer 230Volt Fig 24 86003248 Line filter 230 Volt Fig 24 86000614 Mains inlet and fuse holder __1 See 86003256 86000614 8 6 Transformers for 100 version 11250205 Transformer 100V 50 60Hz ch D CL30 CL31 Multispeed Service Manual 11290092 31 8 7 Rotors and Acce
30. the sensor calibration see par 6 2 Fig 12 Motor replacement see Fig 11 pO en e 8 9 10 11 Remove the front panel see par 5 1 Remove the P PWR board Remove the spring pin from the gas spring Remove the bowl gasket and unscrew the 3 screws from the centrifugation chamber top Remove the bowl motor gasket Remove lifting up the centrifugation bowl Disconnect the motor wire harnesses Encoder J7 uP PWR board Imbalance sensor J4 uP PWR board Temperature sensor J8 uP PWR board Motor windings from the contactor Unscrew the motor fixing screw 2 located on the centrifuge basement plate Unscrew the 4 screws Allen key number 4 to separate the motor from the counterweight Lift the motor up Replace the motor in the same fashion reversing the steps Check the rotation direction of the motor IT MUST BE COUNTERCLOCKWISE Check jumpers ST2 and ST3 on uP PWR board as described in par 3 8 3 CL30 CL31 Multispeed Service Manual 11290092 18 5 6 Speed sensor and shock absorbers replacement see fig 13 ISK 1 Remove the bottom flange unscrewing the 5 3 73 Phillips screws 2 2 Remove the encoder disk 6 unscrewing the screw and the elastic washer 5 3 Remove the Hall effect sensor removing the 3 screws 10 11 12 4 Unscrew the 5 shock absorbers Remove the flange C unscrewing the screws Replace the flange and the shock absorbers reve
31. tting the centrifuges back into service Should a specific maintenance problem arise which is not covered in this manual please ask the authorised service organisation or contact our division indicated here below Concerned units 11210904 11210905 11210906 11210913 11210914 11210915 Centrifuge CL30 Centrifuge CL30 Centrifuge CL30 Centrifuge CL31 Multispeed Centrifuge CL31 Multispeed Centrifuge CL31 Multispeed 230V 50 60Hz 120V 60Hz 100V 50 60Hz 230V 50 60Hz 120V 60Hz 100V 50 60Hz However it is always possible to have copies updated or revisions of this manual contacting our division Thermo ELECTRON CORPORATION Technical Service Address North America 1 866 984 3766 Europe Austria 43 1 801 400 Belgium 32 2 482 30 30 Finland 358 9 329 100 France 33 2 28 03 20 00 or 33 1 6918 7777 Germany 49 6184 90 6940 or 49 6103 408 1012 Italy 39 02 95059 1 Netherlands 31 76 571 4440 Russia CIS 7 095 225 11 15 Spain Portugal 34 93 223 3154 Switzerland 41 1 454 12 12 UK Ireland 44 870 609 9203 Asia India 91 22 5542 9494 Japan 81 45 453 9220 China 86 21 6865 4588 or 86 10 5850 3588 Other Asian countries 852 2885 4613 Countries not listed 49 6184 90 6940 or 33 2 28 03 20 00 CL30 CL31 Multispeed Service Manual 11290092 2 BIOLOGICAL RISK Most of the safety problems related to appliance maintenance are due to human errors caused by tiredness lack of attention neglige
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