accuspin 400 120v 230v

Valid is only version of current data file

accuSpin 400 SERVICE MANUAL 12005194

Edition:02 0 - 0 accuSpin 400 09/10/03 He/Ha

TABLE OF CONTENS

Section Title Doc.- Page 1 OPERATING INSTRUCTIONS (not part of this manual) 2 SERVICE 2.1 Servicing Schedule 2-1/2 2.2 Trouble Shooting 2-3 2.3 Error codes 2-4/6 2.4 Test Points 120V model 2-7 Test Points 230V model 2-8 2.5 Imbalance Behaviour 2-9 2.6 Cleaning of Instrument Parts 2-9 2.7 Electrical Safety Check 2-10 3 FUNCTIONAL DESCRIPTION 3.1 Block Functions 3-1 3.2 Functions of Main Board 3-1/2 3.3 Key and Indication Board (Part of Main Board) 3-2 3.4 Sensor Boards 3-3 4 DIAGRAMS 4.1 Block Diagram 4-1 4.2 Wiring Diagrams 4-2/3 4.3 Wiring Connection Diagrams 4-4/5 4.4 Main Board (120V) - Component Plan 4-6 Main Board (230V) - Component Plan 4-7 4.5 Main Board - Wiring Diagram 4-8/15 4.6 Rotor recognition / Tacho board - Component Plan 4-16 5 DISASSEMBLY OF INSTRUMENT PARTS 5.1 Housing / Casing Parts 5-1/2 5.2 Electrical Components 5-2 5.3 Drive Components 5-3 6 SPARE PART FIGURES AND LISTS 6.1 Break Down Drawings 6-1/6 6.2 Spare Part Lists 7 Preventive maintenance checklist 7-1/3 Calibration Certificate 7-4 8 TECHNICAL BULLETINS

Service

Edition: 02 2 - 1 accuSpin 400 08.10.03 He/Ha

2 Service 2.1 Servicing Schedule (yearly procedure recommended) 2.1.1 Maintenance Routine without Dismantling the Centrifuge 2.1.1.1 Electrical Installation and Safety

• switch OFF the centrifuge and disconnect the unit from power, check voltage supply and mains fusing (16 Amps, slow blow characteristic)

• check condition of plug and wall socket - (let) replace defective parts • check cord condition and fixing / connection - replace or refit it • check condition of instrument socket and replace it in case of bad contacts

2.1.1.2 Location and Mechanical Installation

• check the base (ground, table, lorry with lockable wheels etc.) for resonance-free and stable conditions

• check for a well ventilated place and sufficient distances to walls or adjacent equipment, without exposition to direct sunlight

• check the levelling of the centrifuge drive with use of a spirit level 2.1.1.3 Lid Tumbler Mechanism and Safety Device

• connect the centrifuge to power and switch ON • check for easy lid closing and self-acting lid opening - if in disorder, readjust lid’s swivel hinge

and/or lock assembly • check the rubber gasket for lid’s and bolt’s sealing and replace, if damaged • for checking the electrical safety circuit: start the centrifuge, let it shortly run and stop it, the lid

must not be unlocked by the microprocessor until the “end” message is shown on the display - if safety circuit is out of function, replace the main board

2.1.1.4 Cleanliness of Spin Chamber and Motor Casing

• open the lid and remove the rotor (for loosening socket wrench in arrow direction - see rim of rotor chamber)

• clean the spin chamber with a dry and absorbent cloth (remove all dust and moisture - see also section for Cleaning)

• Check the cleanliness of the motor flange and take care of the annular slot around the motor shaft: penetrating fluids can damage the upper motor bearing, remove fluids with an injector and/or absorbent paper

2.1.1.5 Rotor and Accessories Condition and Sealing

• check the condition of rotors and accessory parts (especially all supporting or stressed partitions): the rotor and/or accessory parts must not be used any longer, if there are visible traces of mechanical damage or rust

• check the condition of rotor and/or accessory sealing and replace them in case of malfunction 2.1.1.6 Rotor Fixing and Drive Spindle

• check the trouble-free condition of the locking nut and replace it in case of malfunction • check the condition of the drive motor shaft: the centrifuge must not be used any longer, if the

drive shaft is damaged (bend, thread is worn out, horizontal grooves etc.) 2.1.1.7 Temperature Level

• check the air inlet underneath the lid and under the bottom plate for free ventilation, insufficient air flow will lead to temperature rise of rotor, motor and electronic parts

2.1.1.8 Imbalance Behaviour

• install available and empty rotors and check the imbalance behaviour with rotor dependant cut off and run through weights (see 2.4) and replace worn out motor rubber mounts, spindle or faulty main board

Service


2.1.2 Maintenance Routine after Dismantling the Centrifuge Casing 2.1.2.1 Motor Supporting Elements

• check the supporting and damping elements of the drive motor and replace them in case of increased rubber abrasion or abundance of imbalance but at least every 3 years

2.1.2.2 Braking Circuit

• check the function of the braking circuit (warming up of brake resistor, even and noiseless brake effect) and replace defective parts in case of malfunction

2.1.2.3 Lead and Screwing Connections

• check the terminal and plug connections of all leads and on all boards and electrical components, tighten all loosen screwing connections, refit or replace defective parts

• check the screwing connections of all boards, mechanical and electrical components and re-tighten them if necessary (use screw locking lacquer for motor mounts and lid lock assembly)

2.1.2.4 Protection Earth Core and Grounding Connections

• check the protection earth core for continuity and all grounding plug connectors • check isolation resistance and accessible current (see 2.7)

Service


2.2 Trouble Shooting

Error Indication Error Cause Possible Error

Source Corrective Procedure

mains fuse or circuit breaker failed

check fuse or circuit breaker and replace or switch on again

defective mains cord or switch or

instrument socket

check instrument cord, switch and socket, replace defective parts no mains

voltage supply

faulty mains cord or instrument socket

check instrument cord and socket, replace defective parts

faulty connection from CPU to indication board

check connections on CPU, indication board and connecting leads, replace defective parts no low voltage

supply for indication board faulty indication or

CPU board replace main board completely

displays remain

dark

interrupted program

NV-RAM out of socket or not

correctly placed

insert the valid NV-RAM and push it correctly into socket

reduced voltage supply (<10%)

remedy the failure if the voltage drops often, use a voltage

stabiliser

all display elements are shortly

illuminated

CPU program reset may be

caused by EMI bad or missing ground connection

check all ground connections and the ground connection of all boards

constant interruption parameter NV-RAM no or defective NV-RAM wear out of motor

rubber mount replace motor rubber mounts (at least every three years) mechanics

motor bearings replace motor completely defective terminal connection, faulty

lead or motor winding

check voltage on motor terminal and winding resistances -see test points on boards

drive makes

noises -no good

separation result

electrical

faulty power electr. replace main board

Missing mains voltage remedy see above, manual opening only at standstill

PTC resistor has released

after a waiting time of 1-2 minutes press key again

lid coil is not or not sufficiently supplied with

voltage faulty driving circuit replace main board faulty lid coil faulty coil winding replace complete locking assy

lid bolt is jamming push lid centrally into lock and press the key again

lid cannot be

opened by key at standstill ->“E-17“ lid is not

correctly locked lid is deformed re-adjust the lid centrally

Service


2.3 Error Codes



„rotor“ in speed display

wrong selection of detected rotor

inadmissible speed or rcf value was pre-

selected

press start again (within 15s), else wait for rotor standstill, lid OPEN/CLOSE, set value, start

rotor not symmetri-cally loaded

open lid, check rotor loading, close lid again and restart

base is not sturdy enough and comes

into vibrations change or reinforce the base (table, lorry with

lockable wheels, etc.)

centrifuge drive is not correctly levelled

level the centrifuge correctly, use a spirit level on top of unit

rotor itself has imbalance

rotor must no longer be used, send back to factory

imbalance run

drive shaft or rotor fixing is damaged

centrifuge must no longer be used, replace nut and/or motor

imbalance NV-RAM no or defective NV-RAM

imbalance sensor, sensor board replace sensor board

“bAL“ message

appears in speed display

signal fault

circuits of main board replace the main board

imbalance NV-RAM wrong NV-RAM data imbalance sensor replace sensor board

imbalance but no “bAL“

message

no imbalance cut-off (see 2.4)

circuits of main board replace the main board

lid was opened manually during

run

forbidden intervention emergency opening device must only be

used at standstill

close lid immediately, turn power OFF/ON, press lid down for locking, press start key, press

stop to finish run

defective micro switch or leads or

connectors to micro switch are interrupted

check leads and connectors to micro switch, in case of a faulty micro switch, replace lid lock

device completely

let motor cool down, then check temperature switch and leads with Ohmmeter

check air cooling and circulation

“Lid“ appears in

speed display protection circuit

(15V) interrupted during run

motor over-temperature switch

has tripped (no sufficient air flow or motor has run on 2

phases only) check solderless connections XM1-3 and motor

windings (see test points in 2.3) loose plug connectors check plug connectors XA1 and XA2

interrupted leads to micro switches check leads to micro switches for continuity

„OPEn“ appears in

speed display by supposedly closed lid

15V supply for protection circuit is interrupted at

standstill defective micro switch

in case of faulty micro switch replace lid lock completely

Service


Error Codes continued



rotor is jammed check for easy movement, remove any jamming objects rotor didn’t turn

motor is jammed replace motor faulty plug or lead

connection to speed detection board

check plug contacts and leads, measure speed signal on XW1/3, replace defective parts missing speed

signal test: turn rotor by hand,

then close the lid faulty processing circuit replace main board

connections motor to power electronics

check plug contacts and leads, replace faulty parts

motor windings Replace motor

„E-00“, „E-03“

message appears in

speed display

motor didn’t start

driving circuit, FETs Replace mainboard bad ground connect.

EMI troubles check all ground connections tighten loose

screws replace the CPU

„E-02“ message

program sequence was

disturbed internal program error replace the main board data lines or soldering

connections check lines and soldering points, replace faulty

parts CPU is defective CPU exchange „E-06“

message data lines to key

board were disturbed faulty key or faulty

CPU board replace the main board

defective leads or brake resistor

check leads and brake resistor, replace defective parts „E-08“

message over-voltage of intermediate

circuit driving and/or braking circuits replace the main board

„E-10“ message

NV-RAM is not initialised

Initialising of NV-RAM is not valid

check NV-RAM and socket, insert the correct NV-RAM

„E-11“ message NV-RAM is faulty no data transfer from

NV-RAM to CPU replace the NV-RAM

a wrong rotor was installed

wait for standstill, open the lid and install a correct rotor

mains voltage failure press stop key, wait for standstill and restart wrong motor phase

condition check rotation direction, if necessary change 2

leads

„E-14“ message

wrong or faulty rotor detection

faulty detection circuit replace the main board „E-15“

message checksum error NV-RAM is wrong or defective replace NV-Ram and insert correctly into socket

„E-16“ message

program interruption

CPU disturbed or defective replace CPU and /or eliminate disturbance

lid is blocked or jammed

press lid centrally in front down again, re-adjust if necessary

defective micro switch or lid lock replace lid lock device

„E-17“ message, lid didn’t

open

micro switch does not open

after pressing lid faulty driving circuit replace the main board

wrong NV-RAM Replace the correct NV-RAM „E-19“ message

wrong key board indication wrong key board

(incl./without cooling) replace the correct key board

Service


Error Codes continued



wrong NV-RAM Replace the correct NV-RAM „E-22“ message

NV-RAM and CPU didn‘t

match wrong CPU Replace the correct CPU

„E-24“ message

2. NV-RAM is missing

NV-RAM for curves is not (correctly) in place

insert the NV-RAM including acceleration./deceleration curves

no rotor installed install rotor correctly loose rotor screwing tighten rotor sturdy

big imbalance on start rotor, spindle or motor bearing „E-25“

message pulsing fault of rotor detection

faulty pulse detection distance hall sensor, magnets Replace the NV-RAM „E-26“

message Failure of CPU

imbalance Checksum error NV

RAM Replace the main board

Service


2.4 Test Points 2.4.1 Test Points 120V model

Test Points Unit Value Conditions mains terminal XN board’s resistance

120V AC 337 Ω

all given values are related on 120V (±10%) mains voltage for board’s supply

65V AC 90V AC 165V AC

in each case measured inter 2 motor leads after reaching selected speed - no effective values! 1000 rpm , swing-out rotor #5197 2000 rpm

5000 rpm

terminal XM motor voltage -

values must be the same between all

3 motor leads (U,V,W)

130V AC 210V AC 250V AC

5000 rpm, microliter-rotor #5195 10000 rpm

15000 rpm

3 * 2,2A soft iron or digital effective measuring instrument Maximum during acceleration (#5197, 17s)

3 * 1,2A 3 * 0,9A

rotor #5197, set speed = 4000 rpm , 200W rotor #5195, set speed = 15000 rpm, 330W

motor current IM cable (1,2,3)

3 * 2,5A maximum during braking phase (#5197, 17s) 320V DC 355V DC

at standstill max. during braking phase (#5195, 30s)

310V DC 308V DC

rotor #5197, set speed = 4000 rpm rotor #5195, set speed = 15000 rpm

intermediate voltage UD (inter brake

resistor’s solder pin and control resistor R41) 295V DC shortly at maximum acceleration (#5195, 30s)

5mV DC 15mV DC 70mV DC

1000 rpm, swing-out rotor #5197 2000 rpm

5000 rpm 15mV DC 55mV DC

120mV DC


15000 rpm

current ID of intermediate

circuit, (measured as voltage drop across control resistor R41) UM = ID * RM 280mV DC

–120mV shortly at maximum acceleration (#5195) shortly at maximum braking (#5195)

motor winding resistance 20°C -insulation value

3x6,4Ω

> 10MΩ

switch OFF unit, pull off motor plugs, measure inter 1 -> 2, 2 -> 3, 1 -> 3

resistance inter each phase and motor casing brake resistor terminal XD 220Ω switch OFF unit, solder protection O.K.,

resistance at 20°C plugs XC1/2 lid solenoid 34Ω condition at rest, resistance at 20°C

lid micro switches plug XA1/2 15V DC voltage drop by open lid

Service


2.4.2 Test Points 230V model

Test Points Unit Value Conditions mains terminal XN board’s resistance

230V AC 1050 Ω

all given values are related on 230V (±10%) mains voltage for board’s supply

65V AC 90V AC 165V AC

in each case measured inter 2 motor leads after reaching selected speed - no effective values! 1000 rpm , swing-out rotor #5197 2000 rpm

5000 rpm

terminal XM motor voltage -

values must be the same between all

3 motor leads (U,V,W)

130V AC 210V AC 250V AC


15000 rpm

3 * 2,2A soft iron or digital effective measuring instrument Maximum during acceleration (#5197, 17s)

3 * 1,2A 3 * 0,9A

rotor #5197, set speed = 4000 rpm , 200W rotor #5195, set speed = 15000 rpm, 330W

motor current IM cable (1,2,3)

3 * 2,5A maximum during braking phase (#5197, 17s) 320V DC 355V DC

at standstill max. during braking phase (#5195, 30s)

310V DC 308V DC

rotor #5197, set speed = 4000 rpm rotor #5195, set speed = 15000 rpm

intermediate voltage UD (inter brake

resistor’s solder pin and control resistor R41) 295V DC shortly at maximum acceleration (#5195, 30s)

5mV DC 15mV DC 70mV DC

1000 rpm, swing-out rotor #5197 2000 rpm

5000 rpm 15mV DC 55mV DC

120mV DC


15000 rpm

current ID of intermediate

circuit, (measured as voltage drop across control resistor R41) UM = ID * RM 280mV DC

–120mV shortly at maximum acceleration (#5195) shortly at maximum braking (#5195)

motor winding resistance 20°C -insulation value

3x6,4Ω

> 10MΩ

switch OFF unit, pull off motor plugs, measure inter 1 -> 2, 2 -> 3, 1 -> 3

resistance inter each phase and motor casing brake resistor terminal XD 220Ω switch OFF unit, solder protection O.K.,

resistance at 20°C plugs XC1/2 lid solenoid 245Ω condition at rest, resistance at 20°C

lid micro switches plug XA1/2 15V DC voltage drop by open lid

Service


2.5 Imbalance Behaviour

• Install in table available rotor(s) in unloaded condition

Rotor Run through weight Cut off weight Swing-out 4x100mL #5197 10g 20g Angle 24x2mL Alu #5195 5g 10g

• Insert rotor dependent cut-off weights into opposite buckets. Check this at all 4 possibilities by

putting the weights pair by pair into the other buckets. The centrifuge must stop 4 times indicating “bAL“ message - in case of false behaviour see trouble shooting: no “bAL“ indication.

• Insert the admissible imbalance weights in the same manner, the centrifuge must run through 4 times to maximum rotor speed.

2.6 Cleaning of Instrument Parts

ATTENTION - WARNING! The electrical and electronic components must not be cleaned with moist detergents! For Cleaning the centrifuge housing or its accessories see Operating Instructions section 1 (maintenance and care) • Electronic components

Clean dusty components carefully with a dry and soft brush and remove loose dust with a vacuum cleaner.

• Vent holes Remove dirt from the vent grid behind the front panel by using a brush and vacuum cleaner.

Service


2.7 Electrical Safety Check

ATTENTION! A final electrical safety check must be performed after each maintenance and/or repair! • Resistance check of protective conductor

The measuring value of the resistance between the mains plug's grounding pin and the grounding conductors of the motor, electronic chassis and the casing must not exceed 200 m? .

• Insulation resistance Check Check also the insulation resistance between the poles of the mains plug and the grounding conductor; the resistance value must be more than 2 M? .

• Accessible current measured to EN 61 010 The accessible current must not exceed 3.5 mAmps in single fault condition (interrupted protection earth wire)! Such a fault condition can be reproduced by the following measuring circuit.

500Ω±1%

L (N)N (L)PE

10kΩ±5%

0,022µF±5%

VAC

0,22µF±5%

Steckergehäuse / plug-in casing

Spezifaktionen für Meßgerät- TRMS, DC - 5kHz oder mehr- Eingangswiderstand > 1M- Toleranz 5% oder besser- Crest Faktor 5 oder besser

Ω

Specifaction for the meter- TRMS, DC - 5kHz or more- Input resistance > 1M- Tolerance 5% or better- Crest Factor 5 or better

Ω

Körperstrom:accessible current: I [mA] = U [mV] / 500:

U = 1750mV I = 3,5mAmax max≡

Service

Edition: 01 2 - 8 accuSpin 40001.03.03 He

2.4 Imbalance Behaviour

• Install in table available rotor(s) in unloaded condition

Rotor Run through weight Cut off weightSwing-out 4x100mL #5197 10g 20gAngle 24x2mL Alu #5195 5g 10g

• Insert rotor dependent cut-off weights into opposite buckets. Check this at all 4 possibilities byputting the weights pair by pair into the other buckets. The centrifuge must stop 4 times indicating“bAL“ message - in case of false behaviour see trouble shooting: no “bAL“ indication.

• Insert the admissible imbalance weights in the same manner, the centrifuge must run through 4times to maximum rotor speed.

2.5 Cleaning of Instrument Parts

ATTENTION - WARNING!The electrical and electronic components must not be cleaned with moist detergents!

For Cleaning the centrifuge housing or its accessories see Operating Instructions section 1(maintenance and care).• Electronic components

Clean dusty components carefully with a dry and soft brush and remove loose dust with avacuum cleaner.

• Vent holesRemove dirt from the vent grid behind the front panel by using a brush and vacuum cleaner.

Service

Edition: 01 2 - 9 accuSpin 40001.03.03 He

2.6 Electrical Safety Check

ATTENTION!A final electrical safety check must be performed after each maintenance and/or repair!

• Resistance check of protective conductorThe measuring value of the resistance between the mains plug's grounding pin and thegrounding conductors of the motor, electronic chassis and the casing must not exceed 200 mΩ.

• Insulation resistance CheckCheck also the insulation resistance between the poles of the mains plug and the groundingconductor; the resistance value must be more than 2 MΩ.

• Accessible current measured to EN 61 010The accessible current must not exceed 3.5 mAmps in single fault condition (interruptedprotection earth wire)!Such a fault condition can be reproduced by the following measuring circuit.

500Ω±1%

L (N)N (L)PE

10kΩ±5%

0,022µF±5%

VAC

0,22µF±5%

Steckergehäuse / plug-in casing

Spezifaktionen für Meßgerät- TRMS, DC - 5kHz oder mehr- Eingangswiderstand > 1M- Toleranz 5% oder besser- Crest Faktor 5 oder besser

Ω

Specifaction for the meter- TRMS, DC - 5kHz or more- Input resistance > 1M- Tolerance 5% or better- Crest Factor 5 or better

Ω

Körperstrom:accessible current: I [mA] = U [mV] / 500:

U = 1750mV I = 3,5mAmax max≡

Functional Description


3 Functional Description 3.1 Block Functions

The accuSpin 400 is a microprocessor controlled laboratory tabletop centrifuge with induction drive motor, integrated air cooling system and automatic rotor and imbalance detection. The unit incorporates following boards and components (see block diagram 4-1): • Two poles mains switch is integrated in the instrument socket mounted on the unit's back side • Main board with microprocessor part and power electronics, 2 fuses are serving for board

protection • Key and indication board (EASYCONTROL programming without temperature display) • 3 phase induction motor with integrated thermal over-temperature switch (C. O. 140°C) • Lid lock assembly with solenoid and integrated micro switch (mechanical bolt keeper,

magnetical dislocking), mounted under the casing's right side • Brake resistor mounted onto the ground plate

3.2 Main Board Functions

Main board is mounted on the ground plate in front of the drive. The components on main board are arranged in following groups (see wiring diagram page 4-2 and 4-3). • Fusing (2 x 8 Amps. slow blow), noise filter in accordance with EN 55011 • Power pack for low voltage supply of microprocessor part (physically separated by transformer)

and power electronics (mains potential) • Triac control circuit for lid solenoid ( DC supply via bridge rectifier) • Bridge rectifier for DC intermediate circuit supplying brake control path and frequency converter • Microprocessor part with 2 controllers (CPU, imbalance) and ASIC80 comp. • exchangeable NV-RAM containing specific data of accuSpin 400 • power part inclusive physically separated driving stages

3.2.1 Power Pack

The power pack (transformer, bridge rectifier and voltage regulator) generates: 1. U1 = 5V: supplies all processors and its electronic components on main and indication board

reference potential: A1: connected to protective conductor (GND) 2. U2 = 15V: (generated by one way rectifying) supplies lower FET of power electronics via the protection circuit of closed lid switch and motor over-temperature switch (normal closed) reference potential: A3! mains potential! EXERCISE CAUTION when measuring etc.

3.2.2 Intermediate Circuit with Brake Path and Frequency Converter

The DC intermediate circuit serves as an energy store between the AC power input and the transmitted motor performance. The intermediate circuit consists of a bridge rectifier and reservoir capacitors which are softly charged, continuously supplied during operation and slowly discharged after power off. The 120V variant has a voltage doubling stage (two diodes for charging two serial connected reservoir capacitors) Brake Path Electrical power is fed back into the intermediate circuit during motor deceleration (motor acts as generator). This braking power is transformed into heat by the line soldered resistor so that the intermediate circuit voltage does not rise to an excessive level. The brake resistor is switched into the intermediate circuit by a fast switching transistor (pulse-width modulation, synchronized by the mains frequency). This transistor is voltage dependent controlled by a self-acting stage (closed loop) Frequency Converter The motor is 3-phased provided with chopped direct voltage blocks. These blocks are variable in frequency and pulse-width modulation, dephased to 120°. These 3 phases are controlled during acceleration, running at set speed and deceleration (e.g. for small speed low frequency and small pulse-width length will be affected) The FC is protected against over-current, over-temperature and over-voltage.



3.2.3 Microcontroller (Central Processing Unit) Part

The software identification No's of the CPU 87C51FC and 2 data storage’s (NV-RAM) 9366 are sequentially displayed in speed and time fields: • CPU: 590 xx (second No.) • NV- RAM 1: 4597 xx (third No.) • NV- RAM 2: 2572 xx (fourth No.) The actually indicated version No.'s (xx) are displayed in the time field and will be upgraded if program or data changes are necessary. The control program (ROM) is integrated in the controller component. The most important operating parameters (e.g. the maximum data for all rotors, the last operator settings or acceleration/deceleration curves) are stored in the non volatile (NV)-RAM. The CPU cooperates with the ASIC 80 component via the 8 bit data bus and some control lines. The ASIC 80 is a specially designed integrated circuit for the driving of centrifuges (with induction motor), containing counting stage for speed measuring and some protecting functions for the power electronics. An other micro-processor (87C51) serves the tasks for automatic imbalance and lid release control (see also 3.4)

3.3 Key and Indication Board (Part of Main Board)

The key and indication board is mounted behind the operating panel. The connection to the main board is done by a 14 polar flat cable. The 7-segment displays, the control LED and the operating keys are managed by an own controller unit (87C54, first identification No. 591) by multiplex processing. For the programming serves EASYCONTROL II (see Operating Instructions)

Function of key elements

keys name function S1 arrow to right start, to set a centrifugal run in rotation S2 square symbol stop, to terminate the centrifugal run manually S3 double arrow quick run, to start - keep the key pressed

S4 lid symbol to open the lid (only possible at standstill) – else error behaviour (PTC is heated up)

S5 time arrow up to increase the value of the set time S6 time arrow down to decrease the value of the set time S7 rcf arrow up/down to switch over from speed to rcf value and back S8 speed arrow up to increase the value of the set speed S9 speed arrow down to decrease the value of the set speed S10 brake arrow up brake curves / slow acceleration - setting

Function of indicating elements

indicat. name function(s)

H3 curve range for deceleration indication of centrifugation time and condition of

H4-H8 speed range

indication of speed (rpm) or rcf value (xg), identification No’s of controller units and NV-RAM centrifugal conditions like lid open (“OPEn“), run finished (“End“), wrong operation like imbalanced load (“bAL“), wrong rotor speed selection (“rotor“), error messages like (“Lid“, “E-xx“)

H9-H11 time range indication of centrifugation time and hold (hld), actual software version numbers (xx)

H12,H13 allocation LED for speed or rcf display H1,H2,

H14,H15 free LED places (not used for accuSpin 400)



3.4 Sensor Boards 3.4.1 Rotor Identification

In the rotor’s bottom either 2 or 4 magnets are forced, which are arranged alternately in polarity and positioned to each other to different distances on a constant circular ring (steps of 20°). A Hall sensor is fixed just below on a small board, which is held in position by the plastic cover on top of the motor. The magnets are switching a Flip-Flop stage (on board) by which different lengths of pulse width(s) and pulse intermission(s) are generated during one rotor rotation. By this signal the CPU is able to detect up to 65 different rotors and the correct direction of rotation, too (wrong direction leads to error E-14).

3.4.2 Speed / Imbalance Detection

On an other small board, which is attached underneath the motor, the circuits for speed and imbalance detection are arranged. Speed The motor speed is optically detected by an infra-red light barrier. The motor axle has a through boring in the same height as the light barrier. This effects that the light beam will be interrupted twice during one motor revolution. A pulse shaping stage on board forms square-topped pulses which are led via XW3 to main board. Imbalance In a defined distance to the motor axle a acceleration detector is fixed on the same board. Dependent of the imbalance this sensor generates an analogous voltage signal which is led via a passband to plug connector XW2. Both signals are led via the 4 poles plug connection XW to the main board where they are analyzed by an own micro-controller (type 87C51, identification No. of control program: 592). When the CPU (590) has identified the installed rotor type, the imbalance controller analyses the rotor code to read in a rotor and speed dependent imbalance limitation curve from a third NV-RAM (2573). The analog imbalance signal is filtered, converted into digital form and continuously compared with this specific limitation curve. If the actual imbalance signal will rise at any speed beyond the limit, the error signal for imbalance load is switched over to the CPU. An additional task of the imbalance controller is the surveillance of the lid’s unlocking conditions: The triac to cut in the lid solenoid can only be effected if the speed is less than 10 rpm. The speed pulses are counted by an integrated circuit stage of the ASIC 80 component to give the CPU a hand with calculation of the exact motor speed.

0

accuSpin 400TM

4 - 1

Block Diagram

plug connection

solder connection

key and indication board

speed detect.2 pulses/revol.

motor

M1

3~

brake resistor

R1

S1

F4

overtemp. switchlid switchlid solenoid

XA XBXC XDXM XW

main board

XR

XNXL

rotor detectionimbalance sensor

XI2

XI1

X

a(t)

n

µC

CPUparam.

curve

imbal.

NV-RAM

Y1

Netzmains

mainscable

S0

X0

instrument plugwith mains switch

F2

F1

L1

NV-RAMs

Mains choke only for230V 50Hz units

Diagrams

accuSpin™ 40009.10.03 Ha

Edition: 02

4 - 2

Schematic Diagram

7805

transformer, rectifiers and regulators

F1

XA/1

lid switch

15V + n = 0: "OPEn" "E-17""LId"

XD/1

S1

F2

main board5V

1.1 1.2

(VCC)

F1, F28AT at 120V models4AT at 230V models

XA/2XB/1 /2 XC/1 XC/2

Y1

PTC

NTC

autom. brake control

+15V

DC intermediate circuit

0V=A2

A1=GND

driving of FETs (frequency converter)

100-120V: 60230V: 245

lid solenoid

noise filter

"E-17"

"E-17"

"E-08"

"LId"

15V + n > 0: 15V + S1:

XD/2

XL

XN

XPE

3

4

PE-chassisPE-motorPE-lid lock

1

2

R1

220brake resistor

with solder fuse

"E-08"

instrument plugwith mains switch

L1 only for 230V 50Hz units

L17.33mH

4AS0

Diagrams


Edition: 02

4 - 3

Schematic Diagram

::

U1 (5V)A1 = GND

U1

U1

U1

µP - TeilµP part

ASIC80

dyn

dyn

CPU 590

physical separation

INHIBIT

6 HGTPs

Û “E-08”

i

i

15V “LId”...

6x2

8

8

3

4

3

2

1

2

XM/1 XM/2 XM/3

F4

M1

overtemperature switch

motor

3

4

U2 (15V)

A2 R44

frequency converter

main baord part 2

dyn

"E-00"

"E-00"

"LId"

i

3 x 6,5

UD-*

UD+

current control res.

Y1

M3

NV-RAM(s)

NV-Ram

release

"E-10"

"E-06"

"E-15""E-19" "E-24"

14....1

XI/1

"LId""OPEn"

speed detection board

"bAL"

XR/1 /2 /3

n = 0:

n > 0:

acceleration sensorhall effective sensor

"E-25"

"E-25"

"E-00"

"E-03""E-14"

"E-14"

a(t)X

XW/1 XW/3 XW/4XW/2

"rotor"Rotor not fixed

n > nset rotor

XI/2

key and indication boardEASYCONTROLµC8051

591"E-25"

GND GND

GND

"n"

"bAL"

A

-1

"n"

"n"

"n"n<60min

5

D

µC8051imbalance

592

2x MUX

main board with rotor detection

Diagrams


Edition: 02

4 - 4

Wiring Diagram

speed + imbalance

main board

rotor identification

adhesive holder

Motor

wiring guidance

mains input withmains switch

Mains choke only for230V 50Hz units

lid switch

XC1XC2

X3Motor "3"

Motor "2"X2

brake resistor

brake resistor

XD2

Motor "1"X1

XD1

motor overtemperature

XA

solder protect.

brake resistor

Mains - Choke

Xl1XN1

mains

lid solenoid

fusesF2

F1

XW

XR

grounding connector

XB1XB2

rotor identification

Diagrams


Edition: 02

4 - 5

Component Plan

D38 D23 D26

grounding connector on bottom plate right behind

# 70902527wiring of lid lock

1

24

S1

Y1NV-RAM for curves2572Vxx

NV-RAM for motor parameters4597Vxx

2573VxxNV-RAM for imbalance parameters

imbalance controller

CPU

micro-processor and NV-RAM places on main board

connections of lid lock assembly

Diagrams


Edition: 02

4 - 6

Component Plan Main Board 120V

C120

XW1

indication part

brake resistor X1, X2, X3 motor connectorsovertemp.lid lockmains

Diagrams


Edition: 02

4 - 7

Component Plan Main Board 230V

C120

indication part

brake resistor X1, X2, X3 motor connectorsovertemp.lid lockmains

main part

rotor detection componentsnot placed

speed & imbalance detectioncomponents not placed

Diagrams


Edition: 02

4 - 8

Main Board; Overview

Output Stage

+15

U+

PHASE1_U

PHASE3_O

PHASE3_U

PHASE2_U

PHASE2_O

PHASE1_O

INHIBIT

U-*

Key and Indification Board

Imbalance recognition

ROTOR0

ROTOR1

ROTOR2

ROTOR3

ROTOR4

BESCHL

DREHZAHL

RESET

UNWUCHT

/DECKELFREIGABE

Sensors

DREHZAHL

ROTOR

BESCHL

Protection Circuit

+15

U+

ZK2

U0

U-

/UEBERSPANNUNG

U-*

/UEBERSTROM

DECKELZU

Controller

PHASE1_U

PHASE2_U

PHASE3_U

PHASE3_O

PHASE2_O

PHASE1_O

/UEBERSPANNUNG

INHIBIT

DREHZAHL

ROTOR

/UEBERSTROM

ROTOR0

ROTOR1

ROTOR2

ROTOR3

ROTOR4

RESET

UNWUCHT

DECKELSCHLOSS

DECKELZU

/LUEFTER

Power Supply

U-

U0

ZK2

U+

DECKELSCHLOSS

/DECKELFREIGABE

/LUEFTER

Diagrams


Edition: 02

4 - 9

Main Board; Power Supply

Different parts at 120V / 230V versions

C47120V version: 1000u 200V230V version: 330u 400V

C46120V version: 1000u 200V230V version: wire bridge

+

R57150kSMD

C40220n400V

R58150kSMD

C4922nY

R12022kSMD

R12122kSMD

R11922kSMD

R12222kSMD

T1230V version:

230V / 9V 4.5VA120V version:

120V / 9V 4.5VA

R66V275LA40A

120V version: V130LA20230V version:

U

F1

F2

R61100RSMD

R124100RSMD

R125100RSMD

R126100RSMD

C54230V version:330u 400V120V version:not present

+

R129100RSMD

R85100RSMD

R67100RSMD

R127100RSMD

R128100RSMD

XL1

XN1

XPE1

C36100nSMD

C37100nSMD

C4110uSMD 25V TA

XC2

V267805

VI2

GND

1

VO3

XC1

L1230V: 2x6.8mH 4A

100/120V: 2x1.8mH 10A

1

2 4

3

R68120V version:

B59850-C120-A70230V version:

B59874-C120-A70

R595R NTC

120V version: 2R0 NTC230V version:

V71BC817

R6522k

SMD

C380u6X

C48100nX

C392200u25V

+ +

C424n7Y

C424n7Y

R93220RSMD

V30P600K

V36230V version:

120V version:not present

P600K

V35230V version:

120V version:not present

P600K

V31P600K

V29SM4007

SMD

V34SM4007

SMD

+

BR3120V version: wire bridge230V version: not present

1 2

V27T1213

R561kSMD

D19S21ME4

6 1

24

V32SM4007SMD

V37SM4007SMD

V28SM4007SMD

V33SM4007SMD

C444n7Y

C4522n Y

120V version: not present230V version:

GND

GND

VCC

VCC

U+

U-

U0

ZK2

DECKELSCHLOSSSignal open the lid

/DECKELFREIGABELid release

Hilfszwischenkreis

Intermediate Ciruit

Mains Connection

FunkentstoerfilterEMI Filter

F1, F2230V version: 4AT120V version: 8AT

Lid Solenoid

Diagrams


Edition: 02

4 - 10

Main Board; Output Stage

V3LL4148

D9A

74HC14SMD

1 2

D10A

74HC14SMD

1 2

D9E

74HC14SMD

11 10

C3220pSMD

D10E

74HC14SMD

11 10

D10C

74HC14SMD

5 6

D10D

74HC14SMD

9 8

C4220pSMD

C5220pSMD

C6220pSMD

C7220pSMD

D10F

74HC14SMD

13 12

D9F

74HC14SMD

13 12

D10B

74HC14SMD

3 4

D9B

74HC14SMD

3 4

D9D

74HC14SMD

9 8

V18LL4148

V19LL4148

V19LL4148

C1010nSMD

V17ZMM15SMD

R2100RSMD

R1100RSMD

R3100RSMD

R4100RSMD

R6100RSMD

R6100RSMD

R7100RSMD

R8100RSMD

R10100RSMD

R9100RSMD

R11100RSMD

R12100RSMD

R3

X2

X1

R251MSMD

R271MSMD

R291MSMD

R261MSMD

R281MSMD

R301MSMD

C1110uSMD 25V TA

C1210uSMD 25V TA

C1310uSMD 25V TA

+

V1BC807

D9C

74HC14SMD

5 6

C201nSMD

C221nSMD

C241nSMD

C211nSMD

C231nSMD

C251nSMD

R3247k

SMD

R3147kSMD

C2610uSMD 25V TA

+

X3

V16ZMM15SMD

V15ZMM15SMD

R1915RSMD

R2115RSMD

R2315RSMD

R2015RSMD

R2215RSMD

R2415RSMD

V20 LL4148

V2BC807

R3382k2W

R3482k2W

R3582k2W

C14100nSMD

V9IRG4BC20KD

V11IRG4BC20KD

V13IRG4BC20KD

V10IRG4BC20KD

V12IRG4BC20KD

V14IRG4BC20KD

D11SFH6106-3SMD

3

4

D12SFH6106-3SMD

3

4

D1SFH6106-3SMD

1

1

1

1

1

1

1

2

2

2

2

2

2

2

3

4

D13SFH6106-3SMD

3

4

D2SFH6106-3SMD

3

4

D14SFH6106-3SMD

3

4

+

D3SFH6106-3SMD

3

4

+

D4SFH6106-3SMD

3

4

D5SFH6106-3SMD

3

4

C15100nSMD

D6SFH6106-3SMD

3

4

C16100nSMD

C2710u

SMD 25V TA

+

D7SFH6106-3SMD

3

4

C17100nSMD

C1100nSMD

D8SFH6106-3SMD

3

4

C18100nSMD

V4LL4148

V4LL4148

C19100nSMD

C2220pSMD

R1333k

SMD

R1633k

SMD

R1433k

SMD

R1733k

SMD

R1533k

SMD

R1833k

SMD

GND GND

GND

GND

GND

GND

GND

GND

GND

VCC

VCC

VCC

VCC

VCC

VCC

VCC

U+

+15

Phase3_U

Phase3_O

PHASE2_U

PHASE2_O

PHASE1_U

PHASE1_O

INHIBIT

U-*

V5LL4148

V6LL4148

V7LL4148

V8LL4148

1

1

1

1

1

2

2

2

2

2

Diagrams


Edition: 02

4 - 11

Main Board; Controller

X8

11

22

33

44

55

66

77

88

99

1010

1111

1212

1313

1414

C65100nSMD

C81100nSMD

C83100nSMD

C62100nSMD

C63100nSMD

C66100nSMD

C69100nSMD

C76100nSMD

C78100nSMD

C8100nSMD

C9100nSMD

C72100nSMD

C61100nSMD

CS1

SK2

DI3

DO4

GND5

VCC8

NC6

NC7

C6722pSMD

C6822pSMD

R874k7SMD

D24TL7705

SMD

REF1

RESIN2

CT3

GND4

VCC8

SENSE7

RESET6

RESET5

D25F

74HC14SMD

13 12

D25A

74HC14SMD

12

C851nSMD

C7010uSMD 25V TA

+

D26NMC93C66

D23NMC93C66

CS1

SK2

DI3

DO4

GND5

VCC8

NC6

NC7

C841uSMD 35V TA

+

D27ASIC80

GND10

VDD11

ALE12

A013

A114

A215

DREHZ_IN16

DREHZ_OUT17

VDD18

WR_6X19

WR_7X20

TEMP221

MODE22

RESET23

BIT924

INH_IN25

TEST26

D7

9

D6

8

D5

7

D4

6

D3

5

D2

4

D1

3

D0

2

GN

D1

VD

D6

8

WR

67

RD

66

TO

UT

65

TE

64

TE

MP

56

3

TE

MP

46

2

TE

MP

36

1

GND60

PH1_O59

PH2_O58

PH3_O57

PH1_U56

PH2_U55

PH3_U54

GND53

VDD52

TAKT55_IN51

TAKT55_OUT50

TAKT11_IN49

PWM_IN48

PWM_OUT147

PWM_OUT046

F_IN45

F_OUT44

Q_

OU

T2

7

Q_

IN2

8

TAK

T_

02

9

TAK

T_

13

0

RD

_4

X3

1

RD

_5

X3

2

TE

MP

ER

AT

UR

33

INT

ER

RU

PT

34

GN

D3

5

TE

MP

13

6

TE

MP

03

7

VD

D3

8

FE

HL

ER

39

UE

BE

RS

P4

0

INH

_O

04

1

INH

_O

14

2

GN

D4

3

R8810k

SMD

D25C

74HC14SMD

5 6

R91220RSMD

D2887C58PLCCPROG 0590

EA/VP35

X121

X220

RESET10

INT014

INT115

T016

T117

P1.02

P1.13

P1.24

P1.35

P1.46

P1.57

P1.68

P1.79

P0.043

P0.142

P0.241

P0.340

P0.439

P0.538

P0.637

P0.736

P2.024

P2.125

P2.226

P2.327

P2.428

P2.529

P2.630

P2.731

RD19

WR18

PSEN32

ALE/PALE/33

TXD13

RXD11

R89100RSMD

R90100RSMD

J1J 11.0592

D25B

74HC14SMD

3 4

D3674HC573

SMD

D12

Q119

D23

Q218

D34

Q317

D45

Q416

D56

Q515

D67

Q614

D78

Q713

D89

Q812

C11

OC1

AD0

AD1

AD2

AD3

AD4

AD0

AD1

AD2

AD3

AD4

AD5

AD6

AD7

AD

7

AD

6

AD

5

AD

4

AD

3

AD

2

AD

1

AD

0

VCC

VCC

VCC

VCC

VCC

VCC

VCC

GND

GND

GND

GND

GNDGND GND

GND

GND

GND

GND

VCC

/UEBERSTROMOvercurrent Signal

PHASE1_O

PHASE2_O

PHASE3_O

PHASE1_U

PHASE2_U

PHASE3_U

ROTORRotor Identification Signal

DREHZAHLRPM Signal

DECKELSCHLOSSLid Control

/UEBERSPGOvervoltage

DECKELZULid closed Signal

INHIBIT

ROTOR0

ROTOR1

ROTOR2

ROTOR3

ROTOR4

RESET

UNWUCHTImbalance Signal

UEBERSTROM

UNWUCHT

/DECKEL

DEFEKT

Key and Indication Board

Reset Controller

DECKEL_ZU

aktiv H

aktiv H

aktiv L

aktiv H

Diagrams


Edition: 02

4 - 12

Main Board; Protection Circuit

R4715RSMD

C3310uSMD 25V TA

+

C12010n

XA1

11

22

C28100u40V

+

D18SFH6106-3

SMD

12

34

12

34

D16SFH6106-3SMD

12

34

R5210kSMD

V23ZMM15SMD

R362M2SMD

R43470kSMD 1%

R4068kSMD

R4210k

SMD 1%

R44470kSMD 1%

R45470kSMD 1%

R46470kSMD 1%

R3710kSMD 1%

R410R125W

V22BC817

V21BC817

C2910nSMD

C3010nSMD

R4910kSMD

R5122kSMD

R382k2

SMD

R392k2

SMD

V25STP7BN60

R5022kSMD

V24P6KE440A

R54100RSMD

C35

100n

SMD

XB1

R53470k

XB2

C3422pSMD

R554k7SMD

D15TLC271SMD

3

2

6

5

1

8

74

+

-

XD1

XD2

C31100nSMD

C32100nSMD

R488k211W

VCC

VCC

VCC

GND

GND GND

GND

GND

U0

U-

U+

+15

ZK2

/UEBERSPANNUNGOvervoltage

U-*

/UEBERSTROMSignal Overcurrent

DECKELZUSignal Lid closed

Overcurrant Recognition

Lid Switch

Motor Overtemp.Protector

Brake Resistor D17SFH6106-3SMD

Voltage control intermediate circuitVoltage control intermediate circuit

Active when back EMF comesfrom the motor

Voltage control intermediate circuitActive if the brake resistor is defective or

the main voltage is too high

Diagrams


Edition: 02

4 - 13

Main Board; Sensors

C5010nSMD

R6910k

SMD

D25E74HC14SMD

11 10

C5910nSMD

R8110k

SMD

XR

11

22

33

D25D74HC14SMD

9 8

XW1

11

22

33

44

VCC

VCC

GND GND

GND GND

ROTORRotor Identification Signal

DREHZAHLRPM Signal

BESCHLImbalance SignalActive Low

Speed and Imbalance recognition

Rotor recognition

Diagrams


Edition: 02

4 - 14

Main Board; Key and Indication Board

H6HDSP-5551

7 6 4 2 1 9 10

5 3

a

b

c

d

e

f

g

dp

a b c d e f g dp A

H7HDSP-5551

7 6 4 2 1 9 10

5 3

a

b

c

d

e

f

g

dp

a b c d e f g dp A

H8HDSP-5551

7 6 4 2 1 9 10

5 3

a

b

c

d

e

f

g

dp

a b c d e f g dp A

H9HDSP-5551

7 6 4 2 1 9 10

5 3

a

b

c

d

e

f

g

dp

a b c d e f g dp A

H10HDSP-5551

7 6 4 2 1 9 10

5 3

a

b

c

d

e

f

g

dp

a b c d e f g dp A

H11HDSP-5551

7 6 4 2 1 9 10

5 3

a

b

c

d

e

f

g

dp

a b c d e f g dp A

D2974HCT138

SMD

A1

B2

C3

G16

G2A4

G2B5

Y015

Y114

Y213

Y312

Y411

Y510

Y69

Y77

D3074HCT138

SMD

A1

B2

C3

G16

G2A4

G2B5

Y015

Y114

Y213

Y312

Y411

Y510

Y69

Y77

D31TL7705

SMD

REF1

RESIN2

CT3

GND4

VCC8

SENSE7

RESET6

RESET5

V50 V51 V52

R9410KSMD

V53 V54

J2J 11.0592

V55

C87 22p SMD

V56

C88 22p SMD

V57

X9

11

22

33

44

55

66

77

88

99

1010

1111

1212

1313

1414

V58 V59

D3274HC573

SMD

D12

Q119

D23

Q218

D34

Q317

D45

Q416

D56

Q515

D67

Q614

D78

Q713

D89

Q812

C11

OC1

R95

C5647uSMD 10V TA

+

R96

R97

R98

R1061K

SMD

R1071K

SMD

R1081K

SMD

R1091K

SMD

R1101K

SMD

R1111K

SMD

R99

R100

R101

R1164k7SMD

R1134k7SMD

R102

R11747k

SMD

R1121K

SMD

R1031K

SMD

R1041K

SMD

R1051K

SMD

V61BC807

V60BC807

V47BC807V47BC807

C89100nSMD

C93100nSMD

C94100nSMD

C95100nSMD

C96100nSMD

C97100nSMD

C100100nSMD

C9747uSMD 10V TA

+

C901u

SMD 35V TA

+

R115100RSMD

R114100RSMD


EA/VP35

X121

X220

RESET10

INT014

INT115

T016

T117

P1.02

P1.13

P1.24

P1.35

P1.46

P1.57

P1.68

P1.79

P0.043

P0.142

P0.241

P0.340

P0.439

P0.538

P0.637

P0.736

P2.024

P2.125

P2.226

P2.327

P2.428

P2.529

P2.630

P2.731

RD19

WR18

PSEN32

ALE/PALE/33

TXD13

RXD11

C1021nSMD

H13LEDrt 3mm

H12LEDrt 3mm

R60

V41BC807

V42BC807

V43BC807

V44BC807

V45BC807

V46BC807

S1 S2 S3 S4 S5

R137

S6 S7

R136

S8

R135

S9

R134

S10

R133

R132

R131 H3HDSP-5551

7 6 4 2 1 9 10

5 3

a

b

c

d

e

f

g

dp

a b c d e f g dp A

H4HDSP-5551

7 6 4 2 1 9 10

5 3

a

b

c

d

e

f

g

dp

a b c d e f g dp A

H5HDSP-5551

7 6 4 2 1 9 10

5 3

a

b

c

d

e

f

g

dp

a b c d e f g dp A

RESET AD0

AD1

AD2

AD3

AD4

AD5

AD6

AD7

AD0 A

AD1 B

AD2 C

AD3 D

AD4 E

AD0 AD5 F

AD1 AD6 G

AD2 AD7 DP

AD3

AD4 P1.0

AD5

AD6

AD7

P2.0

P2.1

P2.2

P2.3

Taste

P1.0

P2.0

P2.1

P2.2 P2

P3

P4

P5

P2.3 P6

RESET P7

P2.0 P8

P2.1 P9

P2.2 P10

P11

P12

P2.3 P13

P14

RESET

P1.0

A

A

P2

B

B C D E F G

P11

DP A

P3

P14

B C D E F G

P10

DP A

P4

P13

P12

B C D E F G

P13

DP A

P5

A

P8

P7

B

B

C

C

D

D

E

E

F

F

G

G

P6

DP

DP

A

P6

A

P9

P5

B

B

C

C

D

D

E

E

F

F

G

G

P4

DP

DP

A

P7

A

P10

P3

B

B

C

C

D

D

E

E

F

F

G

G

DP

DP

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

GND2 GND2 GND2

GND2

GND2

GND2

GND2

GND2

GND2

GND2

GND2 GND2

GND2

GND2

GND2

GND2

VCC2

8x220R

Speed

Time

Start Stop Quick Run Time Time Speed Speed Speed Bremse

LED DrehzahlLED rpm

LED RZBLED rcf

Braking profiles

Main Board

8x4k7SMD

V48BC807

V49BC807

DeckelLid

Diagrams


Edition: 02

4 - 15

Main Board; Imbalance Recognition

D39TLC549

REF+1

ANALOG IN2

REF-3

GND4

/CS5

DATA OUT6

I/O CLOCK7

VCC8

R14010k

SMD

C80100nSMD

C82100nSMD

TP1 TESTPUNKT

TP2 TESTPUNKT

TP3 TESTPUNKT

C79100nSMD


EA/VP35

X121

X220

RESET10

INT014

INT115

T016

T117

P1.02

P1.13

P1.24

P1.35

P1.46

P1.57

P1.68

P1.79

P0.043

P0.142

P0.241

P0.340

P0.439

P0.538

P0.637

P0.736

P2.024

P2.125

P2.226

P2.327

P2.428

P2.529

P2.630

P2.731

RD19

WR18

PSEN32

ALE/PALE/33

TXD13

RXD11

C7722pSMD

C7722pSMD

J3J 11.0592

D38NMC93C66

CS1

SK2

DI3

DO4

GND5

VCC8

NC6

NC7

AUSLASTUNG

TRIGGER

FILTERFREQ.

VCCVCC

VCC

GNDGND

GND

GNDGND

GND

VCC

GND

GND

VCC

ROTOR0

ROTOR1

ROTOR2

ROTOR3

ROTOR4

BESCHLImbalance Signal

DREHZAHLRPM Signal

RESET

UNWUCHTImbalance Signal

/DECKELFREIGABELid release

Tiefpass 450Hz

C73100nSMD

C74100nSMD

C60100nSMD

Diagrams


Edition: 02

4 - 16

Dimensions Rotorrecognition / Tacho board

wiring XR

min 1.8max 2.4

Dimensions of Cast PCB

PCB

insulating compound

ma

x1

6.4

5

min 3.11 min 3.11

33.02 max 3.86m

in3

.11

X3a

R4a

D1a

D2a

R2a

R1a

R5aR3aR6a

C1aC2a

R7a

X2aX1a

Tacho and Imbalance PCB

XW

Diagrams


Edition: 02

Disassembly


5 Disassembly

The index numbers stated in ( ) reappear within the breakdown drawings and the spare part lists 5.1 Dismantling the Housing 5.1.1 Outer Casing (100)

• open the lid, switch off the unit and pull out the mains plug • unscrew and remove the rotor • unscrew and remove the plastic motor cover (112) • disassemble the lid see 5.1.2 • remove 6 flat-head screws (112) for bottom plate attaching • lift the casing in front and remove in vertical position across armoured chamber • Refit the casing analogously in reverse order.

5.1.2 Lid (101-104,110,111)

• open the lid, switch off the unit and pull out the mains plug • knock carefully the joint bolt (105) for upper attaching of gas lid stay (106) out of joint block

(104) with its three notches ahead by use of hammer and pin punches (but press the bolt in with non notches ahead by use of pliers)

• push an adequate screw driver into the bolt’s place to keep the gas lid stay in position and to avoid lid’s slamming

• remove the 4 screw caps on unit’s back side to get access to the 4 screws for both hinges’ attaching and use a 3mm Allen key for unscrewing them (if the casing borings should not be in alignment to the screw heads, then loosen the 6 flat head screws (112) and press the casing in the correct position to remove the screws)

• take the screw driver out of joint block to separate lid from gas stay and remove the lid from casing the bend the casing

• For adjusting or exchange of lid hinges (111) and/or bolt keeper (103) remove the 4 screws for the lid’s lower metal plate (102) attaching

5.1.3 Lid Lock (134)

• dismantle the casing - see 5.1.1 • take off the lines for solenoid (XC1,2) and microswitch (XA) • loosen both counter-sunk screws to take out to both sides the lock’s clamping nuts on guide

plates • remove the screws and take the lid lock device out to the right side guiding it between front

plate and armoured chamber • open the emergency cord and pull out of it’s guide holes • When reassembling the lock adjust it centrally to bolt keeper’s position

5.1.4 Armoured Chamber

• dismantle the casing - see 5.1.1 • remove the counter-sunk screw in front for the steel ring’s attaching and take out the ring (131) • remove the 9 hexagon screws for bottom plate attaching by using a small 10mm socket wrench

with at least 26cm of length • expose connecting lines to indication board from insulation paper (143) • lift armoured chamber out of guide slots in bottom plate and lay down on it’s right side • When re-assemble pay attention to the correct seat of the insulation paper!

Disassembly


5.1.5 Gas Lid Stay (106)

• open the lid, switch off the unit, pull out the mains plug and remove the rotor • knock carefully the joint bolt (105) for upper attaching of gas lid stay (106) out of joint block

(104) with its three notches ahead by use of hammer and pin punches (but press the bolt in with non notches ahead by use of pliers)

• push an adequate screw driver into the bolt’s place to keep the gas lid stay in position and to avoid lid’s slamming

• lay unit carefully on it’s right side and remove both hexagon screws for lower joint block attaching

• take screw driver out of upper block and pass the gas lid stay together with lower block downwards through opening of bottom plate

• remove the lower joint bolt as described above • Install the new gas lid stay analogously in reverse order.

5.2 Replacement of Electrical Components 5.2.1 Fuses on Main Board (154)

• Dismantle the casing (see 5.1.1) • Check the micro fuses and if necessary replace them by equivalent and undamaged ones. • Perform a test run and search for blowing cause. • Reassemble the device analogously in reverse order.

5.2.2 NV-RAM on Main Board (151,152,153)

Software does not belong to the board and has to be ordered separately • Notice old displayed NV-RAM's version numbers when powering on (3./4. No. in sequence) • Remove the casing (5.1.1), if necessary dismantle armoured chamber (5.1.4) • ATTENTION - CMOS components! Discharge your body before handling! Notice correct

position of NV-RAM (8 pins) and pull carefully out of socket • reinsert the new NV-RAM correctly • Reassemble the device analogously in reverse order, put unit back to power and check the

displayed NV-RAM's version numbers 5.2.3 Main Board Replacement (150)

ATTENTION! The key and indication board is part of the mainboard and cannot be ordered as single part. • dismantle the armoured bowl as described in 5.1.4 • disconnect all single plug connectors as: mains supply XL XN, lid solenoid XC1,2, motor lines

XM1-3, over-temperature cut-out XB1,2 and brake resistor XD1,2 (use pliers) and remove plug for lid switch XA, tacho board and rotor recognition.

• remove all screwing of the main and indication board, remove the washers and take out the parts.

• touch a grounded receptacle to discharge your body before touching the sensitive CMOS components! Take the new NV-Rams (152-154) out of box and insert them into the sockets of the new main board (if necessary, remove the placed but non programmed NV-Rams before)

• separate key and indication part from new main board on it’s breaking lines and mount these parts with all washers, screws and/or nuts on its’ designated positions

• Do not mix up disconnected cables during re-connection! Reassemble the device in reverse order and perform a test run, making sure the drive turns in the right direction (see imprinted arrow on rim of rotor chamber)!

5.2.4 Brake Resistor (135)

• dismantle the armoured chamber as described in 5.1.4 • check the brake resistor (resistance) and if necessary resolder the thermal bimetal protection or

replace the resistor • check the cleanliness of air louvers and clean them if necessary, pay attention • Reassemble the device in reverse order. Perform some short test runs with braking curve 9.

Disassembly


5.3 Replacement of Drive Components 5.3.1 Disassembly of Drive Motor (130)

• remove the casing (see 5.1.1). • disconnect the leads for motor XM1-3, over-temperature switch XB1,2 from main board by use

of flat pliers and unscrew the grounding wire PE from motor casing • take off the little board for rotor detection and it’s insulating piece of paper • unscrew the 3 motor attaching nuts and remove them together with the lock washers by use of

needle pliers • lift the motor out of rubber mounts and place it carefully on a close e.g. inside the rotor chamber • set the wires free from cable holder, turn motor on it’s side and unscrew the speed/imbalance

detection board underneath of drive • Reassemble the motor analogously in reverse order replace the lock washers, fasten the 3 nuts

and lock them with Loctite 221. • Perform a test run. Check the sense of rotation (see imprinted arrow direction) and mix up 2

leads on terminal XM1-3 in case of disorder 5.3.2 Motor supports (137)

All 3 rubber supports (137) have to be replaced at the same time. We recommend at every service visit, at least every three years! By the way the all double-sided sandpaper discs (136) must be exchanged, too. A service kit is available. • Unscrew the drive motor and grounding wire PE, remove attaching nuts and lock washers (see

5.3.1) • hold motor on top of rubber supports with one hand and lay the unit down to the right side on a

towel e.g. • pull motor lateral out of rubber supports and lay down carefully inside rotor chamber on a cloth • unscrew the rubber supports underneath bottom plate and remove them • install the new rubber mounts and sandpaper disks, push the motor back on top of rubber

mounts and hold in this position when putting the unit back on it’s feet • place lock washers, tighten the nuts evenly (use a torque key: 10 Nm) and secure them with

screw locking lac (Loctite 221). • Reassemble the device in reverse order • At last perform a test run

6 - 1

Bottom Plate

0

accuSpin400

TM

155

130

150

154

150

133

132

109

160

180

181

106

106

106

114

139

135

165

Mains choke (165) only for230V 50Hz models

BREAK DOWN DRAWINGS

accuSpin 400TM

09.10.03 Ha

Edition: 02

6 - 2

Bottom Plate

10

130

150

132

165

135

151

150

152153

150

160

180

182

181

Mains choke (165) only for230V 50Hz models

BREAK DOWN DRAWINGS

accuSpin 400TM

09.10.03 Ha

Edition: 02

6 - 3

Amouring

105

104

106

143

140

140

142

141

106

134

BREAK DOWN DRAWINGS

accuSpin 400TM

09.10.03 Ha

Edition: 02

6 - 4

Amouring

0

accuSpin400

TM

131

106

141

109

140

140

143

142

BREAK DOWN DRAWINGS

accuSpin 400TM

09.10.03 Ha

Edition: 02

6 - 5

Cabinet

0

accuSpin400

TM

106

105

112

170

171

108

100

115

116

113

BREAK DOWN DRAWINGS

accuSpin 400TM

09.10.03 Ha

Edition: 02

6 - 6

Lid parts

104

117

110

107

103

102

101

111

111

BREAK DOWN DRAWINGS

accuSpin 400TM

09.10.03 Ha

Edition: 02

Spare-Part-List

FISHER ACCUSPIN 400 120V/60HZ75005194

Fisher Scientific

Index Partno. Text

01from Serial-No. to Serial-No.

-

101 20056505 LID102 70056507 INNER LID103 20056527 LID HOOK104 20023748 HINGE BRACKET105 20490287 PIN106 70902001 Parts f maintenance Biofuge Primo107 20420151 NUT M10 X 1.25108 20056506 SEAL109 20058202 OVERLAY accuSpin 400110 20050543 WINDOW111 20056516 HINGE112 20056508 MOTOR COVER113 20460165 Head Screw114 20056509 RUBBER BAFFLE115 20460158 BOLT M4 X 12116 20250074 WASHER117 20056513 INLET130 20210385 MOTOR131 20056517 RING, STEAL132 20180628 SOCKET133 20190247 MAINSCABLE134 70908552 LID LOCK135 20160704 RESISTOR 220R 150W139 20300078 FOOT140 20056511 BAFFLE (LEFT AND RIGHT)141 20056510 BAFFLE (BACKSIDE)142 20056512 BAFFLE, FRONT143 20056749 FOIL SEAL150 20150241 Mainboard151 70902573 NV RAM IMBALANCE152 70904597 NV RAM accuspin 400153 70902572 NV RAM PROFILES154 20230211 FUSE 8 A, SLOW BLOWN155 20150201 Speed and Imbalance recognition board160 20151176 PCB Rotorrecognition170 20360072 SPANNER 10 MM171 70056208 NUT180 70060553 Metal sheet

Donnerstag, 23. Oktober 2003

Seite 1

Spare-Part-List

FISHER ACCUSPIN 400 120V/60HZ75005194

Fisher Scientific

Index Partno. Text


-

181 20220547 BOLT, SPACER182 20220426 SPACER


Seite 2

Spare-Part-List

FISHER ACCUSPIN 400, 230 V75005199

Fisher Scientific

Index Partno. Text


-

102 70056507 INNER LID103 20056527 LID HOOK104 20023748 HINGE BRACKET105 20490287 PIN106 70902001 Parts f maintenance Biofuge Primo107 20420151 NUT M10 X 1.25108 20056506 SEAL109 20058202 OVERLAY accuSpin 400110 20050543 WINDOW111 20056516 HINGE112 20056508 MOTOR COVER113 20460165 Head Screw114 20056509 RUBBER BAFFLE115 20460158 BOLT M4 X 12116 20250074 WASHER117 20056513 INLET130 20210385 MOTOR131 20056517 RING, STEAL132 20180628 SOCKET133 20190249 MAINS CABLE134 70908550 LID LOCK135 20160704 RESISTOR 220R 150W139 20300078 FOOT140 20056511 BAFFLE (LEFT AND RIGHT)141 20056510 BAFFLE (BACKSIDE)142 20056512 BAFFLE, FRONT143 20056749 FOIL SEAL150 20150242 Mainboard151 70902573 NV RAM IMBALANCE152 70904597 NV RAM accuspin 400153 70902572 NV RAM PROFILES154 20230158 FUSE 5X20 4A SLOW155 20150201 Speed and Imbalance recognition board160 20151176 PCB Rotorrecognition165 20170334 Choke 7,33 mH 4A170 20360072 SPANNER 10 MM171 70056208 NUT180 70060553 Metal sheet


Seite 1

Spare-Part-List

FISHER ACCUSPIN 400, 230 V75005199

Fisher Scientific

Index Partno. Text


-

181 20220547 BOLT, SPACER182 20220426 SPACER


Seite 2

Calibration Certification Procedure accuSpin 400

accuSpin400 1 of 2

Revised - 08/10/2003

1. General Successfully completing the Preventive Maintenance Checklist and Calibration Certification Procedure as outlined will ensure that the instrument is properly maintained and calibrated to Kendro

specifications.

2. Equipment Required • Digital Multimeter • Temperature Meter w/probe • Stopwatch • Photo Tachometer • Safety Tester • accuSpin 400 Service Manual • Centrifuge Operating Manual Note: Check calibration due date on all test equipment before starting certification.

3. Documentation Required • Preventive Maintenance Procedure and Checklist (Service Manual) • Calibration Certification Procedure and Form • Certification Label • Certificate of calibration for each piece of test equipment used to perform the certification • Training Certificate

Preventive Maintenance Check • Perform Preventive Maintenance checks as outlined in the Service Manual to ensure the instrument

is in good working order without performing any calibrations. • Complete the Preventive Maintenance Checklist. (calibration data will be filled in after Certification)

Calibration Certification

• SPEED Install a rotor, set the speed control to 3000 rpm and start the centrifuge. When the speed has stabilized, measure the actual speed with an external tacho (photo tacho on multimeter where speed = frequency [no conversion]). Record measured speed and displayed speed in the speed section of the certification form. Set the speed control to max. rpm and after stabilization, record measured speed and displayed speed in the speed section of the certification form. Determine if the speeds recorded meet the specifications on the form. If the specifications are met, proceed to the next section. A re-calibration of the instrument is not possible.

• TIME

Using a stopwatch, check the timer by setting a 10 minute run. Start the centrifuge and measure from the time the start button is pushed until the timer switches to stop. Record the measured time in the time section of the form. Determine if the time value recorded meets the specifications in the form. If the specifications are met, proceed to the next section. A re-calibration of the instrument is not possible. Initial the time section.

Calibration Certification Procedure accuSpin 400

accuSpin400 2 of 2

• SAFETY TEST

Using safety tester and connect the centrifuge to it. Measure Insulation resistance.. Select to Earth Conductor resistance and touch with probe all mechanical part of the centrifuge. Resistance must be <0.2 ohms at all points otherwise check for good grounding. Measure accessible current to procedure in the service manual.

Documentation

After filling in the certification information complete the following documentation: • Log test equipment data on calibration certification form. • Review P.M. checklist and calibration certification form to ensure that all data and required

information has been recorded properly.(including your signature and date) • Fill out a certification label and place it on the right side of the centrifuge where visible or at a

location selected by the customer. • Ask the customer to sign the calibration certification form and place a copy in the customer’s

Certification Record Book for that centrifuge. • Place copies of the P.M. checklist and Field Service Report in the same Record Book. • Provide copies of your training certificate and test equipment calibration certificates if requested by

the customer.

Edition: 02 accuSpin 400 08.10.03 Ha

Fisher Centrifuges PREVENTIVE MAINTENANCE

CHECKLIST

accuSpin 400 Type S/N

Rotor Inspection Performance Checks O Check for corrosion and wear O Acceleration time ______ seconds O Inspect rotor lid locking screw O Instrument top speed _________rpm Serial numbers: O Deceleration time _______ seconds 75005195 ___________________ O Time (10 minute set) ____ actual min:sec 75005196 ___________________ 75005197 ___________________

Preliminary Checks Imbalance O Rotor chamber O Centrifuge stable and level O Inst. Environment (level & clearance) O Centrifuge shuts off w/proper weight O Clean instrument

Pre-run Checks Safety Test O Ground continuity O Accessible leakage current <3500µA O Line voltage ________V AC O Insulation resistance >10 Megaohm O Display segments on power-up O Earth Conductor Resistance <0.2 Ohm O Door interlock and latch O Drive stop & Door unlatch (50 rpm) O Microprocessor Initialization (if required)

Mechanical O Motor bearings Comments: S.R. Signature __________________ Date of Service __________________

Calibration Certification accuSpin 400

Page 1

Preventive Maintenance Checklist Complete Repair and Calibration Recertification

Account Name: Account Address:Instrument Model: Serial Number:Report Number: Date:

Performance Certification

SPEEDStandard Test Rotor Used:

Set Speed (rpm) Tolerance(whichever is greater)

DisplayedSpeed(rpm)

MeasuredSpeed(rpm)

Meets Spec.(y/n)

Passed(Initials)

4000 +0/- 2% or 10 rpm15000 +0/- 2% or 10 rpm

Custom Test Rotor Used:+0/- 2% or 10 rpm+0/- 2% or 10 rpm

TIMEStandard Test Rotor Used:

Timer Set(min.)

Tolerance(sec.)

MeasuredTime(m/s)

MeetsSpec.(y/n)

Passed(Initials)

10 +/-30Custom Test Rotor Used:

+/-30+/-30+/-30

TEST EQUIPMENTType Model Serial Number Date of Next Calibration

StopwatchTemperature MeterPhoto Tachometer

Safety Tester

SAFETY TESTInsulations resistance

>10 MegaohmEarth Conductor Resistance

<0.2 OhmAccessible Current

<3500µA

Revised 17/02/03Certified By:_____________________________ Reviewed By:________________________________ Expiration Date ______ Signature Date Customer Signature DatePage 1 of 1 Use ONLY Black permanent ink when filling out. Leave NO blank spaces. Jan,2003

accuspin 400 120v 230v

Documents

g1 g2a g2b

weight 20g

230v 50hz

230v 50hz

p600k 120v

steckergehuse

5khz oder

intermediate