- Frank`s Hospital Workshop
Contents
1. B4 appliance plug berspannungsschutz erregen j F1 overvoltage protection N 8 BK Netz mains L GNYE 115V 60Hz ES ml Er L ke em u WE d Zur K hl latine A3 X1 zum Moers Funken en to overtemperature radio interference 2 3 ai switch F3 suppression filter BK wH Netzschalter lt WH UE z wl WE mains switch e _P1_WH w Gi g Z P2_ BK a i BK lt E d zum Frequenzum a richter A2 S102 N BK WH to frequency converter A2 S102 N WH Deckelver WH d riegelung WH SS lid lock BK HJ vi L n c reg eg EE y y Ub Versorgungsplatine kd supply board e A Ai Verschlu relais L lid locking relais gt Ub Optokoppler X2 optocoupler gt 7 XX Z 5V Ub 2 S Sy FE T aun S Es 2 X7 NO oe KUD Ub ere e ee BK x8 u Al L IN ea ee NR X4 x3 t 12345 67 89 10 a 283 A 1 2 3 4 Ub 10 15V la e eS 10 15V 12 3 4 123 4 mee RD RD zur K hlungs zum Frequenzumrichter nm wei platine A3 to frequency converter pate e eae ee to cooling A2 S501 i 1 l X3 Pin4 gt GND Pin 1 board A3 Unwucht Imbalance Pin 4 gt GND Pin 2 gt 4 B3 Unwucht Tachosignal tacho signal SR imbalance 8V 15V ER Ge ee a GND era ered fel eee pera GND Bs nat Drehzahlsensor 6 Impulse pro Umdrehung siehe Tachocode ne N f 62. ECR The centrifuge regulation can adjust the speed by 5 max the limit of adjustment The error is indicated if the ACTUAL speed is lower than the NOMINAL speed minus 5 The centrifuge slows down until the open the lid release occurs Further cooling until NOMINAL temperature is reached e Motor is labouring damage to bearings e Motor has a short circuited coil coil is defective e Loose contact in the electrical connections e FC is defective Release signal to FC was interrupted during centrifugation Open the LL Perform an MR CONTROL ERROR 21 26 EC ES ER ECR Internal error in CP The centrifuge slows down until the open the lid release occurs e CP is defective Perform an MR N gt ROTOR MAX EC ES ER ECR Error in the entered program Further operation is not possible SET speed or SET RCF is higher than the permissible rotor speed or permissible rotor RCF Carry out a MAINS RESET or open the lid Reduce the speed or RCF in the entered program to the permissible rotor speed or permissible rotor RCF SER I O ERROR 30 and ERROR 31 EC ES ER ECR CP has no connection to the component FC via serial interface The centrifuge slows down until the open the lid release occurs e CC to FC is defective e There is no voltage on FC e F2 overtemperature switch on brake resistor has opened or is not connected e CP or FC is defective e Cable on plug 102 is not or
3. 5 a D ETT ee e E E EE 35 9 14 Appliance plug B4 overvoltage protection F1 nn 36 9 19 Imbalance switch S ee 36 9 16 Temperature sensor B1 in centrifuge chamber 36 9 17 Temperature sensor B2 atcondenser nennen nnnnnnnnnn 36 9 18 Fan leet ee 36 9 19 Compressor M2 serien RENNER HIERHER 36 9 20 IGS OMG EE 37 9 21 Hinge blockr ers see ee ee 37 3 51 Metlich ZENTRIFUGEN 10 SPEEDOMETER CODE POSITION OF THE ROTORS eeceeeeeeeeeeeeees 38 11 CIRCUIT DIAGRAMS u weten 40 11 1 Mains supply with supply board SB 220N eee eee eee 40 11 2 Mains supply with supply board SB I1DN eee eee 41 11 3 Circuit diagram supply board SBI 42 11 4 Connecting diagram and component layout supply board SB 43 11 5 Signals at control cable between CP SDBI 45 11 6 Block diagram control panel CP 46 11 7 Connecting diagram Control board CH 47 11 8 Block diagram and signals at frequency converter FC gt 48 11 9 Connecting diagram frequency converter EC 51 11 10 Circuit diagram cooling Deeg er 52 11 11 Connecting diagram and component layout cooling board 54 12 TECHNICAL SPECIFICATIONS ececeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 57 4 51 Abbreviations CP FC SB CB CC LL BC BR MR EC ES ER M ECR Mettich ZENTRIFUGEN Control panel Frequency converter Supply board Cooling board Control cable
4. Mettich ZENTRIFUGEN In Table 9 A the components are ordered in the following sequence Column 1 Abbreviation Column 2 Components Column 3 Abbreviations in the circuit diagrams Column 4 Plug connections Column 5 Connections at the electronic panels Column 6 Described in capture Table 9 A CB cooling board CP control panel EPROM on CP Mains choke coil CC control cables 16 conductors 10 conductors 10 conductors ee NI gt on BR oo gt co N o lz ax U wech ek LL lid locking BR brake resistor Radio interference suppression filter Mains switch ON OFF Appliance plug Overvoltage protection Imbalance switch Temperature sensor centrifuge chamber Temperature sensor condenser Fan compressor Compressor Lid spring Hinge block x E 2 EA Lay _ Lai Reg Gr oo CO CO LO LO CO CO LO 0 S Kl k lech l k l k l k l k oO 0 o S O O1 A A o o D N XxX lt gt lt gt lt T NANT RSIS CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 31 51 R TT ZENTRIFUGEN Table 9 B EE ee EE EE x x EB x x XI S Set mains switch x x ee OFF Disconnect centrifuge from mains voltage Disassemble
5. The centrifuge slows down until the open the lid release occurs e Condenser soiled e Loose contact in plug e SB is defective e Fan is defective e Sensor cable B2 is defective Also see at CB X2 Perform an MR CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 19 51 Metlich ZENTRIFUGEN C ERROR 52 EC ES ER M ECR Overtemperature in centrifuge chamber The centrifuge slows down until the open the lid release occurs e Sensor cable B1 is defective e Loose contact in plug e CP is defective e CB is defective Also see CB X3 PIN 1 and PIN 2 and CP X101 PIN 4 Perform an MR C ERROR 53 EC ES ER M ECR Temperature sensor in centrifuge chamber has a short circuit or a dis continuity The centrifuge slows down until the open the lid release occurs Cooling switches off e Temperature sensor is defective e Sensor cable B1 is defective e Loose contact in plug e CP is defective e CB is defective Also see at CB X3 PIN 5 and PIN 4 and CP X101 PIN 8 Perform an MR FU CCI ERROR 60 EC ES ER The release signal was not correctly transmitted to FC The evaluation of the release signal only occurs once after
6. 1001 1000 1011 10011000 1101 1001 1010 0011 100111000011 1 2 1004 0001 1011 3 100100011101 4 10010001 1110 5 100101000111 6 100101010101 7 100101010110 8 100101011010 9 100101100011 10 100101110001 11 100110000111 12 100110001011 13 100110001101 14 100110100011 15 100111000011 Example tachometer code no 1 l Rotor viewed from underneath START A x E L North Pole START STOP y a ei combination Ki RS nea x d Information tachometer code determines 1 maximum speed of rotor 2 run up and braking ramps 3 control response of electronics 38 51 Mettich ZENTRIFUGEN Used cable colours and their short codes colour red a GNYE 39 51 Metlich ZENTRIFUGEN 11 11 1 Circuit diagrams Mains supply with supply board SB 230 V Ger testecker B4 appliance plug berspannungsschutz F4 overvoltage protection N mi e ee BK Netz mains i in h GNYE 230V 50Hz PE m r S 7 e U WH L km ml D kel en zum bertemperatur x schalter F3 Funkentstorfilter Zur K hlungsplatine A3
7. Mettich ZENTRIFUGEN e The CP issues the following via the serial interface Speed Starting and braking levels Control commands START BRAKE STOP e State display by LED s In standby mode the green LED is on In running mode the green LED is on In fault mode the green LED flashes If the FC processor detects a fault it shuts down itself automatically and triggers the fault circuit FC ERROR The CP then interrogates the type of fault via the serial interface 2 5 Special features e Multiprocessor concept Although one microprocessor will fail the other one will continue to monitor its assigned area If the CP fails the drive will be shut down automatically by the FC when no inter rogations have been received via the interface for more than 30 seconds e Interface concept Transmission of data is monitored by an extra check sum e Hardware concept All switches with a safety relevant function are of the NC contact type which means that loose contacts and open circuit faults can also be detected 2 6 Motor Tacho system e The motor is a 3 phase asynchronous motor with 2 pairs of poles e A speed sensor Speedometer attached to the motor receives the following from the transmitter attached to the rotor rotor code information see section 10 and speed data 6 pulses per revolution e The ACTUAL speed is monitored and controlled via the CP Double safety The FC is also programmed that no va
8. The rotor slows down until it stops After the rotor stops there is a DC braking for 30 sec An MR during slowing down causes a DC braking for 3 min After the DC braking the open the lid release takes place Further cooling to NOMINAL temperature Startup took place without the rotor Motor not connected Motor is defective Speed sensor speedometer defective or loose contact on plug Measure speedometer pulses on plug X4 SB pin 4 pin 2 e CC to CP or CC to FC is defective e No release signal to FC e SBor CP or FC is defective Also see at SB X4 CP X1 PIN 14 and FC S501 PIN 8 Open the lid Turn the rotor by hand and perform an MR while the rotor is turning CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 15 51 Metlich ZENTRIFUGEN IMBALANCE EC Imbalance on motor axle ES The centrifuge slows down until the open the lid release occurs Further cooling until NOMINAL temperature is reached ER e Weight difference in rotor components e Supporting lugs not lubricated e False IMBALANCE MODE is set See chapter Imbalance Mode e Imbalance switch not connected e Imbalance switch is defective e Loose contact in cable or plug e CC to CP is defective e CP or SB is
9. hler voltage from temperature sensor 25 C 2 98V Unterschied difference 1 K 10mV 44 51 X1 Pind gt GND FC Hardware Stop Deckel offen Deckel zu lid open lid closed GND X1 Pin8 gt GND ser Schnittstelle vom CP ser interface from CP X1 Pin 11 GND ser Schnittstelle vom CP ser interface from CP X1 Pin G gt GND ser Schnittstelle zum CP ser interface to CP X1 Pin 13 gt GND 5V FC ERROR OK kein Fehler FC Fehler no ERROR GND X101 Pin 2 gt GND K hlung aus ein cooling off on 8V 15V X1 Pin 5 gt GND Deckel offen Deckelzu lid open lid closed GND X1 Pin 7 gt GND 0V X1 Pin 9 gt GND OV X1 Pin 10 gt GND 0V X1 Pin 14 gt GND Tachosignal tacho signal 8V 15V 6 Impulse pro Umdrehung siehe Tachocode 6 pulses per revolution see tachocode X101 Pin 4 gt GND bertemp im Kessel overtemp in the chamber EE 5V bertemp overtemp Mettich ZENTRIFUGEN 11 6 Block diagram control panel CP 5V Ub p fe X1 U 5 00V E RE Ar Reset gt a lt N SR 5 o 5 x oo Verschluss lid locking lt 4 IN S FC Stop bi lt Es Deckel offen l
10. Metlich ZENTRIFUGEN 9 12 2 Short the mains choke coil In countries in which the European standard EN 61000 3 2 applies it is not allowed to short the mains choke coil The mains choke coil reduces the mains input current below the limit values stated in the above mentioned European standard If the centrifuge is run with undervoltage that is mains frequency 50 Hz with a voltage lt 205 V or mains frequency 60 Hz with a voltage lt 210 V the voltage drop of the mains choke coil can cause the error FU CCI ERROR 62 The short of the mains choke coil will increase the supply voltage of the frequency converter e Pull both plugs A and remove the cable see Figure 1 e Pull the plug B from the mains choke coil see Figure 1 and plug it onto the free connector from the radio interference suppression filter C see Figure 2 Figure 1 Figure 2 9 13 Mains switch Q1 e Press mains switch out of lower part of housing e Remove all plugs at mains switch e Replace mains switch CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECH error code reset 35 51 Metlich ZENTRIFUGEN 9 14 Appliance plug B4 overvoltage protection F1 e Remove mains switch see chapter 9 13 Unscrew the two fastening screws
11. S1 D RD D Diagramm A Unwuchtschalter Ge SR Imbalance switch Transp p gt lt BU o X4 B3 T BK ep Drehzahlsensor GND A AL 10 14V speed sensor a Pinta xe BK zur K hlungsplatine A3 to cooling board A3 LO x Y1 Verschlu TE Lid lock i H I zum Netzschalter Q1 to mains switch Q1 vt ZT x SS 35 SIS ds 3 sg E le 7 5 i B s TIT s WTN Bee i 52 1185 V Ausf hrung ge Z T sz N 115 V model oa N E SH et sa Lo sel rea eed Sl of x x zum Frequenzumrichter A2 S102 N x x 3 n to frequency converter A2 S102 IN Z wie DI zum bertemperaturschalter F3 to overtemperature switch F3 3 Co zum Netzschalter Q1 to mains switch Q1 zur K hlungsplatine A3 X1 KS to cooling board A3 X1 230 V Ausf hrung 230 V model zur Netzdrossel L1 to mains coke coil L1 zum bertemperaturschalter to overtemperature switch F 43 51 Metlich ZENTRIFUGEN 11 5 Signals at control cable between CP SB X1 Pin3 gt GND U_ elitr sal GND Verschlu offen Verschlu amp magnet oder Lauf aktiviert lid locking open lid locking magnet or run activated 5V d talk listen GND TxD 4800 B gt t gt t RxD 4800 B X1 Pin 12 gt GND Unwucht Imbalance Unwucht imbalance nur bei Zentrifuge mit K hlung only centrifuge with cooling X101 Pin 8 gt GND Spannung vom Temperaturf
12. X1 to overtemperature radio De to cooling board A3 X1 Q1 R suppression filter switch F3 T PPISSSION mer 32 Netzschalter WH 4 EI WH BK mains switch WH3 P1_WH D u b Kb 4 P2 BK co lt S zur Netzdrossel L1 E EEN to mains coke coil L1 BK WH WH Deckelver WH riegelung WH D lid lock BK I SCH L n c rae ee oe wae ea i 2 119 pe Ub Versorgungsplatine by supply board e SA A1 Verschlu relais e lid locking relais u Ub Optokoppler X2 optocoupler o E xx 22 5V Ub 2 S D babes ge pe he GES T E Es E 5 ND 2 Q Se SR T G x Ng mm Ub eo RD 1 Ub HE Z iT See ARNE et ih x9 X4 A x3 12345678910 123 4 1 23 4 Ub 10 15V wre ee 10 15V 123 4 123 4 U E x 2 zur K hlungs zum Frequenzumrichter n m wi SS be platine A3 to frequency converter sn ala een to cooling A2 S501 T X3 Pin 4 gt GND Pin 1 board A3 Pin 4 gt GND Pin 2 x B3 Tachosignal tacho signal T imbalance 8V 15V N OKTAR AA g GND EE EE GND Meas anil _ 6 Impulse pro Umdrehung siehe Tachocode nn B pulses per revolution see tacho code GEES S1 Unwuchtschalter 40 51 imbalance switch 11 2 ZENTRIFUGEN Mains supply with supply board SB 115 V Ger testecker
13. defective M Also see at SB X3 and CP X1 PIN 12 ECH Perform an MR CONTROL ERROR 04 EC ES ER M ECR N gt MAX 05 EC ES ER ECR LL is open during centrifugation Slowing down until the open the lid release occurs Further cooling until NOMINAL temperature is reached LL is defective and can be opened during centrifugation Loose contact in cable or in plug CC to CP is defective CP or SB is defective Also see at SB X5 PIN 2 and PIN 6 and CP X1 PIN 5 Perform an MR Excess speed The speed recognized by the speed sensor speedometer is 250 RPM greater than the n max speed of the rotor The centrifuge slows down until the open the lid release occurs Further cooling until NOMINAL temperature is reached e Insulation of speed sensor speedometer cable is defective Loose contact on speed sensor speedometer cable Speed sensor speedometer is defective CC to CP is defective CP or FC or SB is defective Perform an MR CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 16 51 Mettich ZENTRIFUGEN ROTORCODE 10 EC An invalid rotor code was read during startup ES The centrifuge slows down until the open the lid release occurs Further cooling u
14. im Motor nur bei Ausf hrung 115V S501 S2 overtemperature switch in motor S2 only with 115 V model Uac Netzspannung 2 mains voltage Upc Unc xv 2 A2 Frequenzumrichter frequency converter Unc U Uac U HI Bremswiderstand brake resistor F3 bertemperaturschalter f r R1 overtemperature switch for R1 Netzdrossel L1 nur bei 230 V Ausf hrung L1 Motor motor MIKRO 22 ab Werk Nr XXXX 06 00 MIKRO 22R ab Werk Nr XXXX 07 00 i mains choke coil L1 only with 230 V model MIKRO 22 from serial no XXXX 06 00 I MIKRO 22R from serial no XXXX 07 00 vom Funkentst rfilter Z1 3 vom Funkentst rfilter Z1 4 from radio interference from radio interference suppression filter 21 3 suppression filter 21 4 Bremswiderstand 230 V Ausf hrung 160 Q Brake resistor 115 V Version 70 Q Motorwiderstand kalter Motor zwischen je 2 Leitungen Motor resistance value cold motor between 2 wires 230 V Ausf hrung 1509 115 V Version 48 51 ZENTRIFUGEN board ing iagram coo ircuit di C 11 10 gt zum Steuerteil A4 X101 to control panel A4 X101 1 234567 8 9 10 ILILLLLLLI CH Ev Diogo Buljooo ev aunejd6unjyny TIN ms WO fo IM o IO a ol ei E 18suepuoo dnyejs JoJesuspuoyynejuy z z Motor
15. on the temperature sensor with a temperature measuring device Then enter the measured value in the display and save it N Each correction must be confirmed by the START key Requirements 1 Rotor has stopped 2 LL is open 3 Mains switch is OFF 4 Plug on coding strip X3 at the CP the jumper from slot 0 to slot 3 OFFSET position CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 24 51 Mettich ZENTRIFUGEN 5 4 1 OFFSET value The OFFSET value is the difference between the actual temperature and the sensor temperature OFFSET value 1 5 C Example Actual temperature Sensor temperature 25 5 C 27 0 C 5 4 2 Procedure for performing an OFFSET alignment 1 Mains switch is ON gt Display OFFSET MODE 2 Press key Display T1 270 C gt 255 C Sensor temperature Actual temperature e The sensor temperature measured is to be adjusted with the 4 Y keys to make it agree with the actual temperature 3 Press the key Display OK If the temperature settings are not confirmed by pressing the START key the old settings will be maintained Mains switch is OFF Remove jumper from slot 3 on coding strip X3 on the CP a A Put the jumper on slot zer
16. overvoltage 21 FU CCI ERROR 67 FC error overtemperature in motor 22 only 115V FU CCI ERROR 68 FC error overtemperature in FC 22 FU CCI ERROR 69 FC error EEPROM 22 FU CCI ERROR 84 FC error FC recognizes excess speed 22 FU CCI ERROR 85 FC error Watchdog in FC had 22 Triggered CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 14 51 Mettich ZENTRIFUGEN 4 2 Description and elimination of errors TACHO ERROR 01 EC ES ER M ECR During centrifugation the speedometer pulses are interrupted The rotor slows down until it stops After the rotor stops there is a DC braking for 30 sec An MR during slowing down causes a DC braking for 3 min After the DC braking the open the lid release takes place Further cooling to NOMINAL temperature e Speed sensor speedometer defective or loose contact on plug Measure speedometer pulses on plug X4 SB pin 4 pin 2 e CC to CP or CC to FC is defective e SBor CP or FC is defective Also see at SB X4 CP X1 PIN 14 and FC S501 PIN 8 Open the lid Turn the rotor by hand and perform an MR while the rotor is turning TACHO ERROR 02 EC ES ER ECR There are no speedometer pulses on the CP after startup
17. procedure ER e CCis defective e FC is defective CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 22 51 Metlich ZENTRIFUGEN 5 Factory setting 5 1 Control panel Only i led i 1 j er Display field Control field gt RCF lt RPM H t min s IMPULS START STOP Entry field f The EPROM of the CP must in all circumstances correspond to the machine version and the cooling version 5 2 Procedure for initialisation An initialization must be carried out e after replacing the FC The frequency converter must be adjusted to the centrifuge Requirement 1 Rotor has stopped 2 LL is open 3 Mains switch is OFF 4 Plug on coding strip X3 on the CP has a jumper in slot 3 and in slot 4 initialisation position e Mains switch is ON gt Display INIT MODE e Press key Display VERS 12 C 01 ji ii machine version Cooling version 01 with cooling 00 without cooling e Press the lt key Display IMBALANCE MODE 2 e Press the 4 or Y key to set IMBALANCE MODE 1 or IMBALANCE MODE 2 Now press the START key to save this setting Information about IMBALANCE MODE see chapter Imbalance Mode ay a machine version Number of initialisatio
18. reserved 6 51 Mettich ZENTRIFUGEN 2 Description of the new Hettich centrifuges 2 1 Functional structure of the Mikro 22 22 R These microprocessor controlled centrifuges are comprised of the following electrical components e Control panel CP microprocessor controlled e Supply board SB e Frequency converter FC motor control microprocessor controlled e Motor with speed sensor speedometer e Braking chopper BC with brake resistor BR e Lid locking LL e Cooling board CB only Mikro 22 R 2 2 Control panel CP The CP is the brain or master of the centrifuge Via a serial data bus system the MASTER controls its SLAVE the component frequency converter FC The individual tasks of the CP are e Management of operator inputs and control of LCD display e Storage of 3 run programs e Control of components FC via the enabling circuit and via the serial interface cooling and fan Evaluation of the speed sensor speedometer Evaluation of the imbalance switch Evaluation of the FC fault alarm circuit Evaluation of the LL open closed signalling circuit Control of the relay for the LL solenoid at rotor standstill Temperature measurement and sensor evaluation of the temperature sensor in centrifuge chamber only refrigerated centrifuge Routine for input storage and transfer of temperature offset values e Format of the serial interface 5 Volt interface with 3 conductors 16 pole contr
19. rotor 5 Remove motor x x SL RI SR covering in centrifuge chamber er AO DL sleeve under motor covering out SSR RRR OGG YT 99 screen See Ku cable from the CP E E D screen a E 29 covering Example Disassembling appliance plug 1 Definite the abbreviation of the appliance plug in Table 9 A column 1 Appliance plug P 2 See Table 9 B column P and carry out the working processes in numeric order 3 Definite in Table 9 A the corresponding abbreviation for the example line P and pick out in column 6 the especially capture 9 13 where the disassembly is described CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 32 51 Mettich ZENTRIFUGEN 9 1 Speed sensor B3 speedometer e Unscrew speed sensor speedometer from upper end plate of motor e Unplug plug number X4 from Supply board A1 e Replace speed sensor speedometer 9 2 Motor M1 Vibration damper e Unscrew speed sensor Speedometer from upper end plate of motor and place it in centrifuge chamber e Pull out the 3 cables from plug S101 at the FC BU BN BR e Use a socket spanner to loosen and remove the three fastening nuts on lower end plate of motor e Lift motor upwards out of centrifuge Unplug the earth le
20. stopped Excessive speed error 250 RPM above n max of 16 rotor Invalid rotor code 17 Mains interruption 17 Error in initialisation 17 Speed error slippage is too great 18 CP error speed 18 CP error PC bus 18 CP error display memory 18 CP error clock timeout 18 CP error EEPROM 18 CP error driver defective 18 CP error nominal speed is higher 18 than permitted rotor speed or nominal RCF is higher than permitted rotor RCF No connection between CP and serial interface 18 No connection between FC and serial interface 18 Subassembly data incorrectly transmitted 19 Data incorrectly transmitted between CP and FC 19 No acknowledgement NAK from FC to CP 19 CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 13 51 Metlich ZENTRIFUGEN Error designation No Brief description Page No cooling Overtemperature at condenser 19 No error displayed C ERROR 52 Overtemperature in centrifuge chamber 20 C ERROR 53 Temperature sensor in centrifuge chamber is 20 defective FU CCI ERROR 60 Faulty release signal to FC 20 FU CCI ERROR 61 FC error computing section 21 FU CCI ERROR 62 FC error undervoltage 21 FU CCI ERROR 63 FC error overcurrent 21 FU CCI ERROR 64 FC error
21. wrong plugged Perform an MR CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 18 51 Mettich ZENTRIFUGEN SER I O ERROR 33 EC ES ER ECR CP is not receiving correct data from FC The centrifuge slows down until the open the lid release occurs e CC to FC is defective e CP or FC is defective Perform an MR SER I O ERROR 34 EC ES ER ECR CP is not receiving correct data from FC The centrifuge slows down until the open the lid release occurs Further cooling until NOMINAL temperature is reached e CC to FC is defective e CP or FC is defective Perform an MR SER I O ERROR 36 EC ES ER ECR NO COOLING EC ES ER ECR FC sends signal NAK to the CP after receiving an unknown command NAK not acknowledged The centrifuge slows down until the open the lid release occurs Further cooling until NOMINAL temperature is reached e CC to FC is defective e FC is defective e CP is defective Perform an MR No cooling in centrifuge chamber Overtemperature at condenser temperature gt 60 C Cooling switches off Continuance of centrifugation until temperature switch in the centrifuge chamber triggers and ERROR 52 appears
22. Lid locking Braking chopper Brake resistor Mains reset Mains switch OFF ON Error cause Error consequence Error remedy Measurement Error code reset 5 51 Metlich ZENTRIFUGEN 1 Introduction e This repair instruction is only intended for specialized staff authorized by HETTICH Interventions and modifications at centrifuges which have been conducted by persons not authorized by HETTICH are at their own risk and entail the loss off all guarantee and liability claims In such an event any guarantee claim or liability claim against the HETTICH expire e The aim of these repair instructions is to enable any errors to be located and eliminated quickly There should be no interventions at or replacement of components on the individual electronics boards Experience shows that if an intervention is not performed in accordance with regulations or if a component is installed whose specification is not identical to that of the original component then the N error defect which has occurred will be compounded by further damage In such an event any guarantee claim or liability claim against the HETTICH ceases to exist Any electronics boards which are not repaired in accordance with the regulations cannot be acknowledged as being replacement spare parts e Information about the operation of the centrifuge please see operating instructions e We reserve all rights for these technical documents e Technical alterations
23. MR No further user operation is possible e CC to FC is defective e CC to CP is defective e SB is defective Also see at CP X1 PIN 4 and FC S501 PIN 7 CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 20 51 Mettich ZENTRIFUGEN General Notice for FU CCI ERROR 61 to FU CCI ERROR 69 FC switches independently The rotor freewheels coasting No further user operation is possible Cooling continues until nominal value is attained Mains switch is OFF Switch mains switch to ON after 1 min Also see at FC S501 PIN 4 and CP X1 PIN 13 FU CCI ERROR 61 EC Error in computing section ER e CC is defective e FC is defective FU CCI ERROR 62 EC Undervoltage Mains voltage less than 20 as nominal voltage ER e Supply voltage too low see chapter Short the mains choke coil e CC is defective e FC is defective M Also see at FC Upc FU CCI ERROR 63 EC Overcurrent ER e Short circuit in motor e Motor impedance is too low e CC is defective e FC is defective FU CCI ERROR 64 EC Voltage in intermediate circuit gt 410 V DC at 230 V gt 205 V DC at 115 V This error normally only occurs when the drive is being braked ER e BR is defectiv
24. Mettich ZENTRIFUGEN Repair instructions MIKRO 22 22R 02 04 AR025GB Andreas Hettich GmbH amp Co KG e Gartenstra e 100 e D 78532 Tuttlingen e Germany Phone 07461 705 0 e Fax 07461 705 125 e Internet www hettichlab com e e mail info hettichlab com service hettichlab com Metlich ZENTRIFUGEN TABLE OF CONTENTS 1 INTRODUCTION WEE 6 2 DESCRIPTION OF THE NEW HETTICH CENTRIFUGES uss00044440000000 sese ee 7 2 1 Functional structure of the Mikro 22 23bR 7 2 2 Control panel CPI 7 2 3 Supply board SB yA saeco te hoe eee eee 8 2 4 Prequency converter PC AZ ne ae 8 2 9 EE EE ee geed 9 2 6 Motor Tacho Systems ee 9 2 7 Imbalance switch nase en 10 2 0 Interlocking snee e e e eie aiaeei 10 EE el Le DEE 10 2 9 1 Temperature sensor B1 in the centrifuge chamber 10 2 9 2 Function of the cooling board CB A3 nenn 10 a EE 10 2 11 e ue ee te EE 11 2 12 Ge en EE 11 3 REQUIREMENTS FOR ERROR IDENTIFICATION asses sese esse sese eee essen eee 12 3 1 Correct DEER Eege 12 82 Eunelonalcheckz T 12 3 3 Procedure for diagnosing errors nn non nn nnnnnnnnnnnnnnnn 12 4 ERROR MESSAGES us ns 13 K S ne EES 13 4 2 Description and elimination Of errors nennen nnnnnnnnnn 15 5 0 FACTORY SETTING use 23 Sf e lt a 1 e e e CEET 23 5 2 Procedure for ln E UE ee MEET 23 5 3 Imbalance Mode ur 24 e OFFSET alignment ar 3 22 ae eueeee eee eee Gand ean s
25. ad e Before motor is installed the three vibration dampers must be checked for possible wear or cracks and if necessary replaced e Replace the motor e Care must be taken of the anti twist device when the vibration dampers are being installed 9 3 FC frequency converter Pull all plugs out of FC Unscrew the four fastening screws of FC Unscrew the screws on the connecting clips and pull the cables out Replace FC Before installation it must be noted that there is a heat conducting paste between FC and centrifuge housing floor N Heat conducting from FC to centrifuge housing floor must be ensured 9 4 SB supply board A1 e All plugs on the SB must be pulled out e Unscrew the four screws and take SB out of centrifuge e Replace SB 9 5 CB A3 cooling board only MIKRO 22 R All plugs on the CB must be pulled out Unplug the two cables RD and BK at the SB Unscrew the four fastening screws at the CB Replace the CB CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 33 51 Metlich ZENTRIFUGEN 9 6 CP control panel A4 e Detach the two holding frames at the CP e Liftoutthe CP on the opening at the front screen e Replace the CP 9 7 EPROM at CP e Pull the EPROM carefull
26. aneeeneees 24 BAA OFFSET VYaluer22 2 2 cohen a eo 4 Se ul 25 5 4 2 Procedure for performing an OFFSET alignment eee eee eee eee eee 25 5 4 3 Note for temperature sensor in centrifuge chamber eee eee 25 2 51 Mettich ZENTRIFUGEN 6 FUNCTION RETRIEVALS SETTINGS ssssseee cesse essere eenn 26 Bel ee E 26 6 2 Hours of OPGIAlON anne aaa a 26 6 3 Slippage Of the drive nen ae Raul 27 6 4 Setting display contrast on control panel nennen 27 Ta FUNCTIONAL ee 28 7 1 Functional check at e ne 28 8 FUNCTIONAL TEST E 30 8 1 Checking the proper working order 30 8 2 Proper working order after repairs nenne nnnnnnnnn 30 9 ASSEMBLING AND DISASSEMBLING COMPONENTS uuuzzusuuunnnnnnnnnnnnnnnnn 30 9 1 Speed sensor B3 speedometer c cccccccceceeceeeeeeeeeeeeteeeeeeeeeeeeeeeteeeeeeeeeeeseee 33 9 2 Motor M1 Vibration damper sss eee 33 9 3 FC frequency e an EE 33 GE SB Supply board All si erence Han ERROR RBB 33 9 5 CB A3 cooling board only MIKRO 22 R 4444444444444RRRnnnnnn nennen 33 9 6 CP control panel Adams 34 97 EPROM aU CP ans nee ee ee ee ee ee ne enge 34 9 8 CC Le e n s Ree EE 34 GG RENE Die ai Rote Miete alie EE 34 9 10 BR R1 brake resistor zer erde 34 9 11 Radio interference suppression filter Z A 34 9 12 Mains choke SS HE Na ee 34 9 12 1 Assembly and disassembly au 20 2220 22202220222 ee Be 34 9 12 2 Short the mains choke CO 35
27. at the appliance plug Pull the appliance plug out of the opening Remove the overvoltage protection from the appliance plug Replace appliance plug Unplug the cables at the overvoltage protection Replace overvoltage protection 9 15 Imbalance switch S1 e Remove plug from position X3 atthe SB e From below loosen the two fastening screws of the imbalance switch e Loosen the fastening nuts from the motor Lift up the motor and pick up the imbalance switch through the opening at the centrifuge chamber e Replace imbalance switch 9 16 Temperature sensor B1 in centrifuge chamber e Remove plug from position X3 at the CB e Remove the lock with appropiate tools at the front of the plug Then press out the four bushes e Press out the temperature sensor in the centrifuge chamber e Replace temperature sensor 9 17 Temperature sensor B2 at condenser Remove upper housing part with lid four screws Lift up the upper housing part and the lid Unscrew temperature sensor at the mounting one screw Unplug plug from position X2 at the CB Replace temperature sensor 9 18 Fan M3 e Remove upper housing part with lid 4 screws e Lift up the upper housing part and the lid e Detach fan e Unplug the two plugs at the fan e Replace fan 9 19 Compressor M2 Remove upper housing part with lid 4 screws Lift up the upper housing part and the lid Loosen the four hex nuts at the compressor below Loosen the cable a
28. cs Perform Offset calibration Where How when replacing the temperature sensor calibrate the temperature sensor the CP calibrate temperature sensor and read out the old offset values and put them in the new CP the CP EPROM Read out the old offset values and put them in the new CP 2 12 Protection Mains input with overvoltage protection Mains power input gt Mains switch Thermal overload protection fuse FC Electronic protection Motor gt Overtemperature cutout gt 135 C only 115V version Cooling Overtemperature switch in centrifuge chamber and at condenser CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 11 51 Metlich ZENTRIFUGEN 3 Requirements for error identification 3 1 Correct power supply e All fuses of house installation are intact Mains voltage is present on the following circuits Cable leading to mains cable Appliance plug Mains switch Radio interference suppression filter Supply board A1 SB plug X5 PIN 1 and PIN 5 3 2 Functional check e Mains switch is ON All LED son control panel must light up The centrifuge type and the software version number appears in the display e After about 8 sec the display switches over
29. e e CC is defective e FC is defective M Also see FC Upc CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 21 51 Metlich ZENTRIFUGEN FU CCI ERROR 67 EC Only centrifuges with 115 V Overtemperature in the motor The cable overtemperature in the motor has high impedance ER e Overtemperature switch opens because of overtemperature in the motor e CC is defective e FC is defective e Motor is defective M e Also see at FC S2 FU CCI ERROR 68 EC Overtemperature in FC ER s Insufficient heat abduction from FC to centrifuge housing There is no or not enough heat conducting paste between FC and housing e Full load operation and an ambient temperature gt 45 C e CC is defective e FC is defective FU CCI ERROR 69 EC EEPROM in FC is defective ER e CC is defective e FC is defective FU CCI ERROR 84 EC FC recognizes excess speed e During rotation the speedometer pulses 6 per revolution are controlled by the FC e The FC switches the centrifuge off when the maximum speed is exceeded more than 500 rpm ER e CCis defective e FC is defective M Also see at SB X4 and FC S501 PIN 8 FU CCI ERROR 85 EC Watchdog in FC Discrepancy in program
30. e AC current of variable frequency and voltage Mode of operation The mains supply is rectified smoothed and chopped in three bridge elements to give a pulse duration modulated supply e Monitoring of the motor current e Evaluation of the overtemperature switch in the motor only version 115V AC e Slave behaviour handling of interrogations and commands from the CP via the serial interface RS 485 interface with 2 conductors 10 pole control cable pole 3 and 5 e Evaluation of the primary enabling Hardware STOP for the FC 10 pole control cable pole 7 e Evaluation of potential faults and monitoring of the fault circuit FC Error 10 pole control cable pole 4 e The electrical power which resulted from braking will be conducted to the BR The braking chopper switches at a voltage from approximately 390V 230V series from approximately 200V 115V series e The BR is protected by an overtemperature switch At a short circuit on the BC which is located on the FC the BR overheats because of high current The overtemperature switch cuts off the voltage supply from the FC After cooling down at the BR the voltage supply is switched on again CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 8 51
31. et 28 51 Metti ch ZENTRIFUGEN Temperature measured at room temperature RT Sample temperature after 1 h running time RT 17K Sample temperature in cooled centrifuges after 1 h running time 1 run 4 C 14000 RPM 2 C to 6 C 2 run 20 C Nmax 18 C 22 C 3 run 37 C Nmax 35 C 39 C Machine temperatures after 2 run Motor Unscrew motor covering and meas RT 70K ure at stator lamination bundle A bearing Measure ball bearing temperature at RT 70K inner ring FC Measure at FC fastening RT 20K brackets CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 29 51 Metlich ZENTRIFUGEN 8 Functional test 8 1 Checking the proper working order By measuring and comparing the data listed under Table 7 it can be determined ifa centrifuge is in proper working order A precondition for this is that the necessary components stated under Table 7 are used for the measurements If the measurements are carried out using other components the numerical values from the Rotor and accessories chapter of the operating instructions for the particular cen trifuge must be employed If the measured values obtained for e the speed e the starting and rundown times e the temperatu
32. g at its rated speed Permissible slippage lt 5 ofthe rated speed Keep the ei key pressed down until after about 8 sec the following appears in the display XX XX A XX XX l l l J t T Actual speed in RPM Rotary frequency in RPM When the key is pressed again the CP switches to normal mode 6 4 Setting display contrast on control panel The display contrast has been preset at the factory but can be readjusted Requirements The control panel is at room temperature 20 25 C The contrast must be adjusted so that the background pixels are not visible Adjustment Using a screwdriver adjust the contrast on the trimming potentiometer on the rear side of the control section see diagram Rear side of control panel Coding strip X3 Watchdog Enable Nicht belegt not used PCx Bus OFFSET MODE Initialisierung des Speichers Initialisation of the memory SS Go AO X101 X1 43210 X3 X100 _HINIT MODE Rw KH e x Trimmer Potentiometer f r LCD Kontrast trimming potentiometer for LCD contrast CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 27 51 Metlich ZENTRIFUGEN 7 Functiona
33. id open a lt ion RxD nn O gt gt 2 a b P lz empfangen senden N Sp listen tak gt E D G o DO A oS Q GC SO lt 4 zl Da TxD 4 G S a Unwucht imbalance p 52 FC ERROR Z 9 SE gt SE st Tacho in DS 5 u gt S N N lo SS i WERE D an amp W LU ar Ja GND 4 A amp ss H X Q Ub m oO 0 Temp f hler w Ww X101 temp sensor T A K hlung aus ein Cc la o e Q ks cooling off on ze Ha 2 vO Os S ox Sen Ubertemp erkennung e Eis gt 98 x lt g overtemp detection S oam iP STEELS loc v 45V ms Nom DN 200 ROE note SE D zo v H eg 3 37 gt 2 BS EE k 5V S L0 TI GND NO Steuerteil A4 x control panel A4 TO X100 Ey 45 51 Metlich ZENTRIFUGEN I Steuerteil A4 control panel A4 b 10 16 2 X101 x1 ge N 3 1 1 2 4 O 2 x lt aam aam T q A3 X4 19 M1 X2 16 zur K hlungspaltine zur Versorgungsplatine nur gek hlte Version to supply board to cooling board only refigerated Version 46 51 ZENTRIFUGEN Block diagram and signals at frequency converter FC 11 8 J48 19AuU09 Aouenbeu Ja yoluwinzuenbal4 cv Jaddoyo syeuq 6X LV
34. is processed in the CP e The housing of the temperature sensor B1 also contains an overtemperature switch In refrigerated centrifuges this switch cuts off the drive at gt 60 C 2 9 2 Function of the cooling board CB A3 e Plugging station X3 for the temperature sensor and the overtemperature switch in the centrifuge chamber e The voltage of the temperature sensor in the centrifuge chamber plug X4 being transmitted over a 10 pole CC to the CP plug X101 e The signal of the overtemperature switch in the centrifuge chamber plug X4 being onward transmitted over a 10 pole CC to the CP plug X101 e Plugging station X2 for the overheating protection B2 at the condenser e Relay circuit for the compressor and the fan The overheating protection B2 at the condenser is series connected to the relay voltage e Plugging station X1 for the compressor and the fan 2 10 Fan e The fan cools down the refrigerant flowing through the condenser e The fan is parallel connected to the compressor CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 10 51 Mettich ZENTRIFUGEN 2 11 Offset calibration e Offset calibration is performed in order to equalize the tolerances of the temperature sensor and the electroni
35. itch in centrifuge chamber OD kel D Eo 22o5 SEND EE Z N S25 S am LO SES SS pw SEKR ay BK WG Slag os PEN P A te Lee NO NI 008 E 548 Q d LE s D So st SS ESS Sl SR i 33 gt lall e ek E EZ N M 1 I El M tv 0 o 1 12 m Anlaufkondensator M2 OF M ae X1 startup condenser SE x1 Ee VOR JOG ct R1 LRF 7R2 5 1 0X30 0 0 R F E 2 D1 X3 s DRE amp C D2 E N 90 X4 d 2 456 I I a x2 D 1 zz zw zma o gt x2 H A3 X4 1 2 o a S C oa 4 55 0 SV le 565 Zz So gt 60 C A4 X101 D el D A A zum Steuerteil A4 wgl i to control panel A4 X7 X8 zur Versorgungsplatine A1 to supply board A1 bertemperaturschalter im K hlsystem overtemperature switch in cooling system 50 51 Metti ch ZENTRIFUGEN Technical specifications 12 Hettich Zentrifugen D 78532 Tuttlingen Product No 1105 1105 01 1110 1110 01 Mains voltage 10 220 240 V 1 110 127 V 1 220 240 V 1 110 127 V 1 Mains frequency 50 60 Hz 50 60 Hz 50 60 Hz 60 Hz Connected load 700 VA 650 VA 900 VA 900 VA Current consumption 3 1A 6 0A 3 7A 7 5A Power consumption 450 W 450 W 650 W 750 W R 404A Max capacity 60 x 2 2 ml 6 x 50 ml Max density 1 2 kg dm Speed RPM 18000 Force RCF 31880 Kinetic energy 9900 Nm Obligatory inspection no Environment Ambient temperature 5 C up to 40 C Relative humidity max 80
36. l check 7 1 Functional check at factory Following accessories are required to perform the functional check e Testing rotor e Two reaction receptacles filled with water Table 7 lists measured values and ranges of measured values which have been laid down for these accessories In the final check the functional efficiency of each centrifuge is verified with the meas ured values and ranges of measured values being taken into account Table 7 Measurements carried out on the centrifuges at the factory MIKRO 22 MIKRO 22 R with testing rotor load two reaction receptacles reaction receptacles filled with Measuring instruments used in final check Temperature measuring instrument THERM 2250 1 x Moving iron current measuring instrument X Moving coil current measuring instrument N x Rated speed Nmax RPM 14000 Slippage at Nmax RPM 100 400 Starting current up to Nmax A 7 0 7 7 O a Rated current up to Nmax E A Q a Total current with cooling A N a Starting time Stage 9 up to Nmax sec Rundown time Stage 9 from Nmax sec Starting time Stage 5 up to RPM 4000 sec Rundown time Stage 5 from RPM 4000 sec Imbalance Run through at g Switch off at g CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code res
37. lue of speed in excess of the maximum permitted rotor speed can be selected The FC monitors the speed and switches off at excess speed with error code ERROR 84 e Rotor standstill is monitored via the CP The lid can only be opened when the CP has detected standstill CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 9 51 Metlich ZENTRIFUGEN 2 7 Imbalance switch e A switch detects any imbalance e Imbalance can only be detected in running mode starting centrifuging and braking e If any imbalance is detected the drive is changed over to braking 2 8 Interlocking e Opening of the LL is prevented by a latch The LL can only be opened when the relay on the SB is energized by the CP This occurs when the rotor is at standstill and mains power is applied A solenoid is energized and releases the latch e The centrifuge can only be started when the lid is closed A microswitch on the LL detects the position of the LL 2 9 Cooling e Temperature behaviour When rotor is at standstill and the lid is locked the cooling is operating When rotor is at standstill and the lid is unlocked there is no cooling 2 9 1 Temperature sensor B1 in the centrifuge chamber e This temperature
38. ns CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 23 51 Metlich ZENTRIFUGEN e Press START key Display 77 OK and then PARAM INIT C001 machine version Number of initialisations e Mains switch is OFF e Remove both jumpers from slot 3 and slot 4 on coding strip X3 on the CP Put a jumper on slot zero at the plug on coding strip X3 on the CP Service position Watchdog An initialisation is always necessary after a replacement ofthe FC 5 3 Imbalance Mode From programme version 3 00 it is necessary to set the imbalance mode during the initialization Depending on the SB version IMBALANCE MODE 1 or IMBALANCE MODE 2 must be selected T If the incorrect imbalance mode is selected the display shows error IMBALANCE permanently 5 4 OFFSET alignment An OFFSET alignment is performed to align the temperature sensor and the CP electro nics with one another An alignment must be performed in any event 1 Replacement of the temperature sensor at the centrifuge chamber 2 Replacement of the CP or the EPROM at the CP The OFFSET alignment for the temperature sensor is carried out in the CP To carry out an offset compensation measure the temperature directly
39. ntil NOMINAL temperature is reached ER s Magnetic coding on rotor is defective e Speedometer system is defective e Loose contact on speed sensor speedometer plug e The rotation of the rotor direction is incorrect M See at section 10 ECR Open the lid or perform an MR MAINS INTERRUPT EC Interruption of mains supply during centrifugation ES The centrifuge slows down until the open the lid release occurs Switching on at the mains during centrifugation causes slowing down until the open the lid release occurs Switching on at the mains when the rotor has stopped brings about the open the lid release ER e Power supply has failed e Loose contact in electrical connections e CC to CP is defective ECR Open the lid and press the START key N This error cannot be reset by an MR VERSION ERROR 12 EC Differences in the initialisation from CP EPROM or FC ES No further user operation is possible ER e An incorrect EPROM has been plugged into CP M Also see initialisation section 5 2 ECR Perform an MR CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 17 51 Metlich ZENTRIFUGEN N lt MIN 13 EC Insufficient speed the slippage of the motor is too great ES ER
40. o at the plug on coding strip X3 on the CP Service position Watchdog 5 4 3 Note for temperature sensor in centrifuge chamber If the temperature in the sample deviates from the nominal value Display the offset alignment can be altered as follows Actual temperature is lower than nominal temperature Set the offset temperature of T1 lower by the amount of the deviation the cor rected value is lower Actual temperature is higher than nominal temperature Set the offset temperature of T1 higher by the amount of the deviation CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 25 51 Metlich ZENTRIFUGEN 6 Function retrievals settings Requirements 1 Rotor is stopped 2 Mains switch is ON Keep ei key pressed down until after about 8 sec the following appears in the dis play 1 SOUND BELL ON1 or OFF acoustic signal Press el key Every time the key is pressed the display alters as follows 2 CONTROL XXXXX h Hours of operation 3 VERS XX C XX Machine version cooling version 4 FU CCI 1000 FC type 5 FU CCI S 00 XX FC software If nothing more is keyed in for 8 sec the CP switches over to normal mode Only Nos 1 and 2 of the function retrievals lis
41. ol cable pole 6 8 and 11 e The CP is powered from the SB via the control cable 10 15 Volt pole 1 2 GND pole 15 16 CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 7 51 Metlich ZENTRIFUGEN 2 3 Supply board SB A1 The SB performs the following individual functions 12 V DC and 5 V DC supply for the SB 12 V DC supply for the CP 12 V DC supply for the CB only Mikro 22 R Plugging station X5 for mains power supply LL magnet and transmission of the signalling circuit for LL switch open closed over opto coupler to the CP Power supply for speed sensor speedometer Plugging station X4 for speed sensor cable and transmission to the CP and FC Control of the relay for the LL solenoid at rotor standstill Plugging station X3 for the imbalance switch and direct transmission of the imbalance signal to the CP e The 5 Volt interface with 3 conductors is converted to an RS 485 interface with 2 conductors Interface to FC RS 485 interface via 2 conductors e Transfer of primary enabling Hardware STOP CP gt FC e Transfer of fault circuit FC ERROR FC gt CP 2 4 Frequency converter FC A2 The FC performs the following individual functions e Generation of the motor power supply 3 phas
42. pseog Ajddns o 6X Lv aulje dsbunBiosia INZ Jeddoysswaug l aaUp 1nd1nO n d Jaqiasjsbuebsny D x 1891 e i o LOLS A T 7 yg an E Ng z K N ge Ne e 04jU09 duer 107409 192 i LIN Bunypemusan due gt JOJJOAUOIO IIN wg Nn pewejul a jojuoy Bdg ZS i A AAA Sig NUSUOSI Z AD Pee vv AD x S njeJsdwe JoJoW ne lt Anyesodwayojoyy AA A Te fspow A SPL um Aua v JOJOW UI UO ainjessdwapeno ALL ASLL Burayrysmy eg anu fe JOJO Wi Jeyjeyosinnelsdwenegn ger SH ONG L o ART gt SW d e a d An vi e OY cg gt oe A 2 ee nr Loss Ok 6 8 4 9 5 p zc 1019199 geg PuejsiepImsweig bY L1 Netzdrossel L1 e i CH De mains choke coil L1 bertemperaturschalter F3 f r R1 overtemperature switch F3 for R1 HM A Jeu UoIssaiddns SOUBJOLO U OIPEJ WON JOyIOISJUEYUNZ WOA Pin B gt GND Tachosignal tacho signal GND 15V 8V Signale an S501 signals at S501 Pin B gt B gt GND A gt GND Pin 3 GND 5V GND Zum Pin 7 gt GND FC Hardware Stop Deckel zu Pin4 gt GND EM 5V FC Fehler FC ERROR kein Fehler Lid closed Deckel offen GND Lidopen To ERROR GND 47 51 Metlich ZENTRIFUGEN 11 9 Connecting diagram frequency converter FC zur Versorgungsplatine A1 X9 A to supply board A1 X9 A gt gt WA WA 1 2 2 Ubertemperaturschalter
43. pulses per revolution see tacho code E A Si imbalance switch 41 51 Metlich ZENTRIFUGEN 11 3 mains input SE Verschlu Netzeingang lid lock Motor L fter motor fan e 42 51 Circuit diagram supply board SB Fehlermeldung von FC error message from FC em Hardware stop wm Netz mains Stillstand X6 3 standstill Deckel lid Lupp Bus 485 Bus T gt SC GND sj CJ e d Re S En oo o o 3 J a o o Tacho 1008 Bu i H Ge LJ Bt i SE K2 115V Version TR1 115V 12V R16 Br cke bridge SS Ye ES FC Fehler FC ERROR RxD Um g J C _iisten talk 1 WU TxD Hardware stop Verschlu relais lid lock relay Deckel offen Meldung lid open message Unwucht GND imbalance GND Unwucht imbalance Tacho Zur K hlplatine to cooling board 11 4 zum ZENTRIFUGEN zum Frequenzumrichter A2 S501 to frequency converter A2 S501 Steuerteil A4 X1 to control panel A4 X1 N Connecting diagram and component layout supply board SB zur K hlungsplatine to cooling board RD ler RD o T x3 3 m
44. res in cooled centrifuges are identical to the numerical values in Table 7 or to those in the Rotor and accesso ries section of the operating instructions then the centrifuge is in proper order 8 2 Proper working order after repairs See section headed Checking the proper working order The following values must be checked in addition e Insulation resistance gt 2 MQ e Protective conductor resistance lt 0 20 e Leakage current lt 3 5 mA limit according to EN 61010 A laboratory centrifuge do not belong to those medical appliances which may be tested according to the regulation IEC 601 or corresponding national medical electronic standards Laboratory centrifuges are classified as laboratory equipment The regulations applying to laboratory equipment are IEC 1010 or European standard EN 61010 9 Assembling and disassembling components Before assembling or disassembling components the working processes in Table 9 B for MIKRO 22 and MIKRO 22 R must first be carried out to reach the components and make a note of the plug numbers The components are assembled in reverse order The further procedure is described on the following pages CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 30 51
45. schutzschalter motor protective switch nd d N WH BK BK WH vv KILO 7 10 CIZ AIAZ JapOW A SLL LO yayms sulew Wo HM ya 23456 1 N x AUOOL CH AUOOL AGE AC00 E e SE Gel co AIL ve D1 1N4148 II r DIE H a T1 1 23456 x BC327 ZLOOEEdY 113 es AOSC AUOT LY e ol PELL VDR1 r an o j9pow A OEZ LZ Jeu uoIssaiddns aus OIPes WON Buniynysny A SLL LO JeyeyaszyoN UOA Buniynjsny A OEZ LZ JeuuOisiueun2 WOA LW D LX 8X eoq Ajddns woy LY sunelds un uos ieN UOA rd ca LI 9 9 oO oO A A a Ja les lu w Z z EZ gt m lt 49 51 Metir ZENTRIFUGEN mech b mech Connecting diagram and component layout cooling board B1 Temperaturf hler und ber temperaturschalter im Kessel B2 temperature sensor and overtemperature sw
46. t compressor Replace compressor CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 36 51 Mettich ZENTRIFUGEN 9 20 Lid spring Open the lid e Loosen the fastening screws at the inner side of the lid Pull up the external lid part out of the guideway Replace defective component 9 21 Hinge block Remove upper housing part with lid 4 screws Lift up the upper housing part and the lid Loosen the fastening screws at the inner side of the lid Pull up the external lid part out of the guideway Remove lid spring Unscrew hinge from cover e Replace hinge block CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 37 51 Metlich ZENTRIFUGEN 10 Speedometer code position of the rotors MIKRO 22 22 R Speedo Position Rotor meter occupied code No O 1001 0000 1111 1001 0001 0111 1015 1016 1001 0001 1011 1001 0001 1101 1001 0001 1110 1001 0100 0111 1001 0101 0101 1001 0101 0110 1001 0101 1010 1001 01100011 1001 0111 0001 1001 1000 0111
47. ted here can be altered 6 1 Acoustic signal After in the display appears e SOUND BELL ON1 or SOUND BELL OFF the acoustic signal can be deactivated or activated after standstill using the 4 Y keys ON1 Every 30 sec there is an acoustic acknowledgement that the rotor has stopped The acknowledgement can be silenced by pressing a key or opening the lid OFF The fact that the rotor has stopped is not acknowledged acoustically The setting of the acoustic signal must be confirmed by pressing the START key In the event of an error the acoustic signal sounds every 2 sec until a key is pressed or the lid is opened 6 2 Hours of operation After the CONTROL XXXXX h appears the hours of operation can be seen and after being selected by pressing the RCF key can be altered using the 4 Y keys The Y key sets the hours of operation indicator to 0 The A key increases the hours of operation display by 1 To make the number of hours increase quickly keep the 4 key pressed down The setting of the hours of operation must be confirmed by pressing the START key CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 26 51 Mettich ZENTRIFUGEN 6 3 Slippage of the drive Requirement The centrifuge is runnin
48. to the most recently used centrifuging data or the error code 3 3 Procedure for diagnosing errors e Look for the displayed error code in the chapter 4 Error messages e Remedy the error according to the instructions e Carry out a functional check after every repair and whenever a component is replaced e The technical data which were determined during the final check can be found in the chapter 7 Functional check CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 12 51 4 Error messages 4 1 e Error messages in Error designation TACHO ERROR TACHO ERROR IMBALANCE CONTROL ERROR N gt MAX ROTORCODE MAINS INTERRUPT VERSION ERROR N lt MIN CONTROL ERROR CONTROL ERROR CONTROL ERROR CONTROL ERROR CONTROL ERROR CONTROL ERROR N gt ROTOR MAX SER I O ERROR SER I O ERROR SER I O ERROR SER I O ERROR SER I O ERROR Brief description No 01 02 04 05 12 13 21 22 23 24 25 26 30 31 33 34 36 Mettich ZENTRIFUGEN MIKRO 22 MIKRO 22 R Brief description Page Speedometer pulses break down during rotation 15 No speedometer pulses after start command 15 Imbalance on motor axle 16 LL error lid opened without recognizing that 16 motor had
49. up to 31 C descending in a linear pattern down to 50 at 40 C Sample overtemp Class of protection EMC ISM Industrial Science Medicine Emission EN 55011 FCC EN 55011 Radio interference Class B Class B Class B suppression Immunity according to EN 50082 2 Noise level dependent on rotor 58 62 dB A 57 64 dB A Dimensions e Width e Depth e Height Weight ca 51 51
50. y out of IC socket e Pay attention to the polarity of the EPROM when installing e Do not bend the IC pins Before touching the EPROM ensure that your own static electricity is discharged e Replace the EPROM 9 8 CC control cables e Unplug the corresponding control cable from the boards e Replace the control cable 9 9 LL Y1 lid locking Remove the front panel Unplug all cable from the lid lock Loosen the to fastening screws on the to of the housing Exchange the lid lock 9 10 BR R1 brake resistor From below loosen the two fastening screws of the BR at the floor Unplug the cables at the BR and the FC Loosen cable at overtemperature switch on the BR clip S102 position U1 Replace BR 9 11 Radio interference suppression filter Z1 e Unscrew the fastening screws of the radio interference suppression filter e Remove the plugs from the radio interference suppression filter e Replace the radio interference suppression filter 9 12 Mains choke coil L1 9 12 1 Assembly and disassembly e Pull both plugs from the mains choke coil e Undo the fastening screws of the mains choke coil e Replace the mains choke coil CP control panel FC frequency converter SB supply board CB cooling board CC control cable LL lid locking BC braking chopper BR brake resistor MR mains reset EC error cause ES error consequence ER error remedy M measurements ECR error code reset 34 51
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