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Hettich EBA 200, Инструкции по ремонту

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4 

Description of the centrifuge 

This microprocessor controlled centrifuge mainly consists of the following components: 

• 

Control panel (A2) 

• 

Electronics (A1) 

• 

Motor (M1) with speed sensor (B1) and holder of the magnet for the imbalance detection 

• 

Motor-driven lid lock (A4) 

 
 

 

All electronic components are on mains, except the speed sensor (B1). 

 
 

4.1 

Control panel (A2) 

The control panel (A2) have control tasks, it disposes of the following characteristics: 

• 

Keys for input of the operation parameters. 

• 

LCD-display 

• 

Transmission of the signals to the electronics (A1) via the interface. 

• 

Storing the machine version and the brake setting. 
By means of the machine version the electronics (A1) is informed which kind of centrifuge has to be controlled. 
Then the electronics (A1) takes the corresponding values from the ROM, e.g. max. speed, acceleration and 
deceleration ramps, adjusted value for the imbalance switch-off. 

• 

Communication with the electronics (A1) via TTL interface. 

• 

Monitoring the speed signal and the speed measurement. 
If over or under speed is detected the motor will stop. 

• 

Status indication with a green LED: 

Standby: 

The LED lights up 

Centrifugation run: 

The LED flashes slowly 

Case of error: 

The LED flashes quickly 

The power supply for the control panel (A2) is transmitted from the electronics (A1) via the flat ribbon cable: 

Pin 1 GND 
Pin 4 +5V 

 
 

4.2 Electronics 

(A1) 

The electronics (A1) is a combination of: 

• 

Control 

• 

Voltage supply 

• 

Frequency converter 

 

The electronics (A1) carries out the following tasks: 

• 

Power supply 15 V, DC for the speed sensor (B1). 

• 

Power supply 5 V, DC for the control panel (A2). 

• 

Control of the motor: 

– 

Generating the motor power supply 
(three-phase current with variable frequency and voltage) 

Functional description: 

The mains voltage is rectified, smoothened and chopped into a pulse width pattern 
in three bridge elements with a microprocessor. 

– 

Monitoring the motor current. 

– 

Evaluating the speed sensor pulses (1 pulse per revolution). 
If over or under speed is detected the motor will stop. 

– 

Evaluating the overtemperature switch in the motor (M1). 

• 

Evaluating the imbalance sensor. 

• 

Controlling the motor-driven lid lock (A4). 

• 

Communication with the control panel (A2) via TTL interface. 

• 

Error evaluation. 

• 

Status indication with a yellow LED: 

Standby, centrifugation run:  The LED lights up 
Case of error: 

The LED flashes with specific errors 

 

Содержание EBA 200

Страница 1: ...2014 Andreas Hettich GmbH Co KG AR1800EN HAEMATOKRIT 200 EBA 200 EBA 200 S Repair instructions...

Страница 2: ...705 0 Fax 49 0 7461 705 1125 info hettichlab com service hettichlab com www hettichlab com 2014 by Andreas Hettich GmbH Co KG All rights reserved No part of this publication may be reproduced without...

Страница 3: ...tion run 24 7 2 5 Backlighting of the display 25 7 2 6 Querying and setting the hours of operation and querying the number of centrifugation runs 26 7 2 7 Switching the cycle counter on or off and set...

Страница 4: ...10 Lid leg spring 56 10 11 Lid covering locking tab 57 10 12 Sealing ring 57 11 Change mains input fuses 57 12 Technical documents 58 12 1 Block diagrams of the control 58 12 1 1 Block diagram EBA 20...

Страница 5: ...lead to material damage and injury to personal Symbol on the device Beware of biohazard Symbol in this document Warning Danger for human lives by electric shock Symbol in this document This symbol re...

Страница 6: ...tatus indication with a green LED Standby The LED lights up Centrifugation run The LED flashes slowly Case of error The LED flashes quickly The power supply for the control panel A2 is transmitted fro...

Страница 7: ...osition of the lid lock open closed and report it to the electronics A1 4 5 Imbalance detection An hall sensor monitors the imbalance This hall sensor is located on the electronics A1 The magnet for t...

Страница 8: ...INTER 11 Mains interruption during the centrifugation run 12 VERSION ERROR 12 Incorrect centrifuge model recognized 12 UNDER SPEED 13 Underspeed 13 CTRL ERROR 25 1 Control panel error EEPROM 13 CTRL E...

Страница 9: ...uency converter on the electronics A1 detects underspeed 17 TACHO ERR 61 22 Frequency converter on the electronics A1 is not receiving any speed pulses 10 FC ERROR 61 23 Speed measurement faulty 10 FC...

Страница 10: ...ger receives speedometer pulses from the speed sensor B1 TACHO ERROR 2 After starting the centrifugation run the control panel A2 receives no speedometer pulses from the speed sensor B1 TACHO ERR 61 2...

Страница 11: ...A1 is defective LID ERROR 4 4 LID ERROR 4 6 LID ERROR 4 7 LID ERROR 4 9 Error description LID ERROR 4 4 The lid lock jams during locking LID ERROR 4 6 LID ERROR 4 7 LID ERROR 4 9 The lid lock jams du...

Страница 12: ...ol panel A2 is defective MAINS INTERRUPT MAINS INTER 11 Error description Mains interruption during the centrifugation run Clear error message After the rotor has come to a standstill open the lid and...

Страница 13: ...CTRL ERROR 25 1 CTRL ERROR 25 2 EEPROM Read or memory error The device can no longer be operated CRC ERROR 27 1 ROM Read error The device can no longer be operated Clear error message Carry out a MAI...

Страница 14: ...e intermediate circuit voltage approx 325 V DC on plug S100 electronics A1 Pin 5 and Pin 7 Gnd Electronics A1 is defective FC ERROR 61 2 Error description Frequency converter error on the electronics...

Страница 15: ...ake up to 10 minutes On the electronics A1 on plug S101 there is a voltage of approx 325 V DC Unplug the plug S101 electronics A1 and measure between Pin 7 and Pin 9 on the plug of the cable Switch cl...

Страница 16: ...ere is a voltage of approx 325 V DC Unplug plug S101 and check the winding resistances of the motor at Pin 1 Pin 3 and Pin 5 on the cable plug For resistance values of the various motors see the above...

Страница 17: ...he plug S601 or S501 electronics A1 Plug S601 EBA 200 Plug S501 EBA 200 S HAEMATOKRIT 200 Control panel A2 is defective Electronics A1 is defective FC ERROR 61 21 Error description The frequency conve...

Страница 18: ...error The rotor is unevenly loaded The three rubber metal bearings on the motor are damaged Check the three rubber metal bearings for wear or cracks The imbalance switch off is maladjusted Adjust the...

Страница 19: ...d at any time by pressing the STOP OPEN key RPM RCF Keep both keys pressed for 8 seconds Speed values T Speed value of the speed sensor F Field speed When rotor at a standstill t min s RPM RCF During...

Страница 20: ...ugation run chapter 7 2 4 Automatic switch off of the background lighting chapter 7 2 5 Optical signal after ending the centrifugation run chapter 7 2 3 Query Number of completed centrifugation runs c...

Страница 21: ...nd hold the button for eight seconds t min s RPM RCF SELECT Press the key t min s RPM RCF START PULSE Press the key Centrifuge model Example t min s RPM RCF Example t min s RPM RCF SELECT Press the ke...

Страница 22: ...the following is displayed t min s RPM RCF START PULSE Press the key End beep Acoustic signal after ending the centrifugation run off Signal deactivated on Signal activated t min s RPM RCF t min s RP...

Страница 23: ...me by pressing the STOP OPEN key SELECT Press and hold the button for eight seconds t min s RPM RCF SELECT Press the key until the following is displayed t min s RPM RCF START PULSE Press the key t mi...

Страница 24: ...ey until the following is displayed t min s RPM RCF START PULSE Press the key t min s RPM RCF t min s RPM RCF SELECT Press the key until one of the following is displayed Lid AutoOpen Automatic unlock...

Страница 25: ...ress the key until the following is displayed t min s RPM RCF START PULSE Press the key t min s RPM RCF t min s RPM RCF SELECT Press the key until one of the following is displayed Power save Automati...

Страница 26: ...the following is displayed t min s RPM RCF START PULSE Press the key TimeExt External hours of operation Example t min s RPM RCF RCF Press the key The external hours of operation can now be set Examp...

Страница 27: ...The procedure can be aborted at any time by pressing the STOP OPEN key In this case the settings are not stored SELECT Press and hold the button for eight seconds t min s RPM RCF SELECT Press the key...

Страница 28: ...RPM RCF Example t min s RPM RCF STOP OPEN Press the key off Cycle counter switched off on Cycle counter switched on t min s RPM RCF t min s RPM RCF STOP OPEN Press the key twice to exit the Time Cycle...

Страница 29: ...nd hold the button for eight seconds t min s RPM RCF SELECT Press the key until the following is displayed t min s RPM RCF START PULSE Press the key Example t min s RPM RCF SELECT Press the key until...

Страница 30: ...Example t min s RPM RCF If a key is pressed which is locked the following is displayed t min s RPM RCF With the rotor at a standstill the keys can be locked as follows The procedure can be aborted at...

Страница 31: ...etting Centrifuge model and type chapter 7 4 1 Setting Imbalance switch off chapter 7 4 2 Setting Hiding the display of the centrifuge model chapter 7 4 3 t min s RPM RCF t min s RPM RCF t min s RPM R...

Страница 32: ...stored START PULSE STOP OPEN Keep both keys pressed and switch on the mains switch at the same time t min s RPM RCF SELECT Press the key t min s RPM RCF START PULSE Press the key Centrifuge model Exa...

Страница 33: ...it rotor the required setting or switch off weight must be placed in the padded shell of a rotor place The setting and switch off weights of the various models are shown in the following table If ther...

Страница 34: ...tch off values can be queried t The following values can be queried with the keys Imbal limit Imbalance limit value BaseVal Determined average value PWM offset Determined offset value Threshold Imbala...

Страница 35: ...M RCF t min s RPM RCF If the system does have to carry out an offset alignment t min s RPM RCF Example t min s RPM RCF If values lie outside of the allowed range one of the following error messages ap...

Страница 36: ...t in the padded shell of the rotor place t min s RPM RCF t min s RPM RCF Close the lid t min s RPM RCF Press the key START PULSE Two short centrifugation runs are carried out to set the imbalance swit...

Страница 37: ...lose the lid t min s RPM RCF Press the key START PULSE A short centrifugation run is carried out to check the imbalance switch off t min s RPM RCF t min s RPM RCF t min s RPM RCF If no imbalance is de...

Страница 38: ...nd switch on the mains switch at the same time t min s RPM RCF SELECT Press the key until the following is displayed t min s RPM RCF START PULSE Press the key OEM version Hide the display of the centr...

Страница 39: ...tion test of the LCD display t min s RPM RCF t Press one of the two keys Alternately after each additional press of the key either all segments of the display will light up or all segments of the disp...

Страница 40: ...Afterwards continue with the function test of the acoustic signal transducer t min s RPM RCF t min s RPM RCF RCF Press the key t min s RPM RCF START PULSE Press the key t min s RPM RCF RPM RCF Press t...

Страница 41: ...ocked t min s RPM RCF If the lid is locked t min s RPM RCF t Press one of the two keys If the lid is locked it will be unlocked t min s RPM RCF t min s RPM RCF t min s RPM RCF Close the lid t min s RP...

Страница 42: ...switch on the mains switch at the same time t min s RPM RCF SELECT Press the key until the following is displayed t min s RPM RCF START PULSE Press the key t min s RPM RCF START PULSE Press the key Th...

Страница 43: ...OP OPEN key In this case the settings are not stored START PULSE STOP OPEN Keep both keys pressed and switch on the mains switch at the same time t min s RPM RCF SELECT Press the key until the followi...

Страница 44: ...n Lid AutoOpen on Automatic shutdown of the backlighting Power save on MACHINE MENU Optical signal after ending the centrifugation run End blinking on SERVICE MENU Locking the keys Key lock Unlocked C...

Страница 45: ...t min s RPM RCF t Set yes with the keys yes Initialize EEPROM no Do not initialize EEPROM t min s RPM RCF START PULSE Press the key The EEPROM will be initialized t min s RPM RCF t min s RPM RCF STOP...

Страница 46: ...follows The procedure can be aborted at any time by pressing the STOP OPEN key In this case the settings are not stored START PULSE STOP OPEN Keep both keys pressed and switch on the mains switch at t...

Страница 47: ...rifugation runs the number of already completed centrifugation runs of the test run is briefly displayed t min s RPM RCF Then the remaining pause time will be displayed t min s RPM RCF Ending the test...

Страница 48: ...ang Appendix Rotoren und Zubeh r Rotors and accessories Imbalance switch off Values see chapter 7 4 2 Current consumption Values see chapter 12 3 After the test run a safety test must be carried out C...

Страница 49: ...chamber 7 Lid lock A4 8 Motor cover in EBA 200 HAEMATOKRIT 200 only 9 Motor M1 complete 9 1 Dog in EBA 200 S HAEMATOKRIT 200 only 10 Speed sensor B1 11 Holder with magnet 12 Rubber metal bearing 13 An...

Страница 50: ...4 3 E3824 CP electronics 5 E3772 Bowl seal 6 E3732 Centrifuge chamber 7 E3733 motorized lid lock ass y 8 E3815 motor cover 9 E3304 motor 9 1 n a n a for EBA 200 10 E3307 speed sensor 11 E3786 magnet h...

Страница 51: ...50 65 1 1 1 1 2 1 3 1 4 2 3 4 4 1 4 2 4 3 5 6 7 8 9 10 11 12 13 14 16 17 18 15 a b c c c c c c c c e e e e d f h h j j m m m m n n o o o p q k k q q Fig 1 EBA 200...

Страница 52: ...51 65 1 1 1 1 2 1 3 1 4 2 3 4 4 1 4 2 4 3 5 6 7 10 11 12 13 14 16 17 19 20 9 9 1 b c c c c c c c c e e e e d f h h j m m m m n n o o o p Fig 2 EBA 200 S...

Страница 53: ...52 65 1 1 1 1 2 1 3 1 4 2 3 4 4 1 4 2 4 3 5 6 7 9 10 11 12 13 14 16 17 19 20 8 9 1 a b c c c c c c c c e e e e d f h h j m m m m n n o o o p Fig 3 HAEMATOKRIT 200...

Страница 54: ...rder Make sure that all plugs are plugged in again and all cables are fastened where they should be For the plug positions see pg 60 chapter 12 2 10 2 Removing the centrifuging chamber Remove the uppe...

Страница 55: ...anti twist devices above and below the rubber metal bearing are different The rubber metal bearing the speed sensor and the motor are installed in the opposite order Make sure that all plugs are plugg...

Страница 56: ...g 3 item 19 Screw the six fastening screws out of the electronics Fig 4 a b The two screws Fig 4 b are located on the cooling plate of the electronics A1 Exchange the electronics The electronics is in...

Страница 57: ...5 10 9 Appliance plug A3 for EBA 200 only Remove the upper housing part see pg 53 chapter 10 1 Disconnect all cables from the appliance plug pg 50 Fig 1 item 15 Remove the two fastening screws from th...

Страница 58: ...c pg 51 Fig 2 c pg 52 Fig 3 c out of the base plate and out of the rear side of the device Lift up the upper housing part pg 50 Fig 1 item 4 pg 51 Fig 2 item 4 pg 52 Fig 3 item 4 somewhat and tilt for...

Страница 59: ...uP uP of CP E Speed control with Flash ROM RAM and EEPROM to control uP of Control Panel E including the other c ontrols marked with beginning CP E MMI display beeper and 8 buttons Centrifugation para...

Страница 60: ...rorhandling etc including controls marked with uP uP of CP E Speed control with Flash ROM RAM and EEPROM to control uP of Control Panel E including the other c ontrols marked with beginning CP E MMI d...

Страница 61: ...s 12 2 1 Abbreviations of the cable colours Abbreviation Colour BK black BN brown BU blue GD gold GN green GNYE green yellow GY grey OG orange PK pink RD red SR silver TQ turquoise Transp transparent...

Страница 62: ...61 65 12 2 2 Connecting diagram EBA 200...

Страница 63: ...62 65 12 2 3 Connecting diagram EBA 200 S HAEMATOKRIT 200 Table with the components see next page...

Страница 64: ...63 65...

Страница 65: ...53 Kinetic energy 750 Nm 1750 Nm Obligatory inspection BGR 500 no Ambient conditions EN IEC 61010 1 Set up site Indoors only Altitude Up to 2000 m above sea level Ambient temperature 2 C to 40 C Humid...

Страница 66: ...atory inspection BGR 500 no Ambient conditions EN IEC 61010 1 Set up site Indoors only Altitude Up to 2000 m above sea level Ambient temperature 2 C to 40 C Humidity Maximum relative humidity 80 for t...

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