GYROZEN 416 User manual

Low Speed Centrifuge, 416 – Service manual
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1. Model: Low speed Centrifuge, 416
2. Manufacturer: Gyrozen Co., Ltd.
3. Service: BMS Co., Ltd. Technical Service Team, 82-2-3471-8171
Gyrozen Co., Ltd Customer Service Team, 82-70-8620-5350
# C01DC00304-11

Low Speed Centrifuge, 416 – Service manual
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CONFIDENTIAL
Table fo Contents
1 Operating Instruction ...............................................................................................................4
1.1 About this manual..............................................................................................................4
1.2 Safety Label and safety precaution ...............................................................................4
1.2.1 Safety label ...............................................................................................................4
1.2.2 Safety Precaution .....................................................................................................5
2. Installation ...................................................................................................................................6
2.1 Unpacking ..............................................................................................................................6
2.2 Location ..................................................................................................................................7
2.3 Supply the power .................................................................................................................7
2.4 Power on and opening the door.......................................................................................7
3. Device Information.....................................................................................................................8
3.1 Special qualities ....................................................................................................................8
3.2 Technical Specifications ......................................................................................................8
3.3 Outer Description.................................................................................................................9
3.4 Operating Function of Control Panel ...............................................................................9
3.5 Operating System.............................................................................................................. 10
3.6 Main Controller Board...................................................................................................... 11
3.7 Display Controller Board.................................................................................................. 11
4. Disassembling .......................................................................................................................... 12
4.1 Front panel and controller board................................................................................... 12
4.2 Door Assembly................................................................................................................... 13
4.3 Motor cover & Chamber.................................................................................................. 13
4.4 Door lock assembly........................................................................................................... 14
4.5 Motor assembly................................................................................................................. 14
4.6 Anti-vibration rubber ....................................................................................................... 15

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4.7 Imbalance sensor assembly............................................................................................. 15
4.8 RPM sensor assembly....................................................................................................... 16
5. Service Mode and Adjustment ............................................................................................ 17
5.1 Transition into service mode .................................................................................... 17
5.2 Handling values ........................................................................................................... 17
5.3 Procedure for Imbalance adjustment...................................................................... 18
5.4 Door lock ass’y adjustment....................................................................................... 19
6. Error code and Troubleshooting ........................................................................................ 20
6.1 Error code..................................................................................................................... 20
6.2 Troubleshooting........................................................................................................... 22
7. Maintenance ........................................................................................................................... 23
7.1 Cleaning and disinfection ........................................................................................ 23
7.2 Device test for centrifuge ........................................................................................ 24
7.2.1 Validation for actual RPM................................................................................... 24
7.2.2 Validation of Motor performance ................................................................... 24
8. Parts Information .................................................................................................................... 25
8.1 Assembly Drawing .................................................................................................... 25
8.2 Part List......................................................................................................................... 30

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1. Operating Instruction
1.1 About this manual
This service manual should be used by specialized engineers authorized by Gyrozen
Co., Ltd.
Any repairing work operated by non-authorized personnel cannot be protected and
guaranteed.
This service manual aims to find possible errors quickly and fix them properly.
Refer to the user’s manual for detailed operation of Centrifuge.
Do not copy or reprint without approval
1.2 Safety Label and Safety precaution
1.2.1 Safety label
The labels attached to the device give information for safety.
Label Information Label Information
Attention label to show
risk and warning
Attention label to warn
electric shock

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1.2.2 Safety Precautions
•Supply proper voltage power according to device’s power requirement.
•Let all repairing works done by authorized or qualified personnel.
•Use rotors or accessories which are approved by Gyrozen.
•Not try to open the lid and or move the device while the rotor is running.
•Operate the centrifuge with a rotor properly attached and secured to the shaft.
•Not use flammable, hazardous, explosive, or corrosive materials.
NOTE: When it is required to use toxic, radioactive materials or pathogenic micro-
organisms, which belong to the Risk Group II of WHO: “Laboratory Bio-safety Manual,”
should follow the regulation guidelines from WHO.
http://www.who.int/csr/resources/publications/biosafety/Labbiosafety.pdf)
•Keep away hazardous materials farther than 30 cm (12 in) from the device during
centrifugation, as recommended in IEC standards 61010-2-020.
•Keep the rpm or rcf under its maximum speed in the case that the density of sample
materials is greater than 1.2 g/ml to avoid rotor failure.
•Load samples symmetrically in the rotor diagonally to make balance between the tubes.
•Balance the load on the rotor totally to prevent the damage to the device even by using
several water-filled tubes.
•Place device on a flat, level, rigid and stable surface.
•Disconnect power supply prior to maintenance and service work to avoid electrical shock.
•Use proper disinfection procedures when centrifuging bio hazardous compounds.
When a blackout takes place while the device is running, the door does not open. And the
rotor speed begins to decrease at natural level. Even if the power turns on before the rotor
stops completely, the rotor does not return to the original speed, but decreases more rapidly
with buzzer sound.
The door is closed/opened automatically by a door lock unit operated by a solenoid, and it
will not be opened while the rotor is running at all. Even if the door is opened accidentally,
a door limit switch senses it instantly to make the rotor speed decrease.
If the rotor loses balance while running by any reason, it invokes vibration on the device
itself. In this case the Imbalance sensor senses it and makes the rotor begin to decrease with
preset level issuing Imbalance Error warning. This safety function protects the device from
damage during operation.
In Blackout
M
a
ke sure to
Door opening
Device vibration

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2. Installation
2.1 Unpacking
1) Check if the box contains such parts as;
① Power cable, 1ea
② Emergency door open tool, 1ea
③ User’s manual, 1ea
④ Rotor (Optional)
⑤ Rotor coupling device
2) Open the box and lift out the device carefully together with the safety padding.
3) Remove the safety padding and vinyl wrap.
4) Remove the motor fixing bolts
There are 2 screws placed at the bottom of the device. They protect the imbalance
sensor from any damage caused by some accidental moving of the motor during
delivery.
And they should be removed before the installation of the device as follows;
① Check if a long bolt(A came out from bottom of the device. As it is longer than
the leg pieces, the device cannot stand horizontally.
② Check also another screw around the long one.
③ Unscrew and remove the 2 screws with a provided wrench.
5) Place the device on the flat surface.
Bottom side
B A

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2.2 Location
1) Install the device at the solid and flat floor or table. If you place the centrifuge at
the slope, the axis of rotation is possibly changed because of the rotor weight.
2) Install the device keeping a distance of 30cm at least from the wall. The distance is
needed for the air circulation around the device.
3) Install the device at the place with appropriate temperature and humidity. These
conditions have to be maintained constantly as soon as possible.
4) Install the device at the place without any kinds of corrosive gases.
2.3 Supply the power
1) 416 model uses 110V or 220V. Check proper voltage of the device and connect to
adequate power outlet.
2) If the power input is more than +/- 10% of the recommended voltage or
fluctuating frequently, it may affect some functions of the device. In that case it is
recommended to use AVR (Automatic Voltage Regulator).
3) If you want to use the device under the other voltage range, please contact us for
safe usage.
2.4 Power On and opening the door
1) Turn on the device by the switch on the right side of the machine.
2) Press the ‘Door’ button to open the door.
If it does not work (door not open), use the emergency door open tool (as the
figure)

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3. Device Information
3.1 Special qualities
High safety and low noise
Fixed angle rotor and Swing-out Rotor available
Simultaneous display of rpm and rcf speed
Automatic Alarm function for Imbalance, Door open, Speed trouble
High tech AC Induction Motor adopted
3.2 Technical Specifications
Max. RPM(Fixed Angle/Swing out) 4,000/4,000 rpm
Max. RCF(Fixed Angle/Swing out) 2,700/2,826 g
Max. capacity(Fixed Angle/Swing) 16 x 15 ㎖/4 x 100 ㎖
Run time ≤ 99 min 59 sec or continuous
Acceleration time ≤ 20 sec
Deceleration time ≤ 25 sec
Program memory 10
Power supply 220V, 50/60Hz
Power requirement 300 VA
Dimension (WxDxH) mm 375 x 480 x 260
Weight 19.5 Kg
CE Certification Yes

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3.3 Outer Description
Main Body Angle Rotor,
GRA-S-15-16
Swing Rotor,
GRS-S-50-4
Swing Rotor, GRS-S-mw-2
3.4 Operating Function of Control Panel
1) RPM/RCF: to show the RPM/RCF display
2) TIME: to show pre-set time up to 99 min 59 sec (00: continuous)
3) SOFT START & STOP: to accelerate or decelerate slowly.
4) Door: to open the door.
5) RPM/RCF: to switch the RPM/RCF display
6) Up & down arrow: Uses to change input data.
7) TIME: to set test time up to 99 min 59 sec (00: continuous)
8) START/STOP: Uses to start & stop operation.
9) PROG: to save a set of setting values or call the saved setting values.
* If you press the arrow button longer than 3 seconds, the numbers change rapidly and
the set-up is achieved faster.

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3.5 Operating System
1) DSPIC 30F4011, MICOM; It controls all devices.
2) SMPS; distributes inlet power to each part as appropriate form.
3) Inverter; transforms the single phase power to the 3 phase for running the AC
induction motor.
4) IPM FSBS5CH60; controls the AC induction motor.
5) Solenoid; open and close the door lid automatically.
6) Temp sensor; measure the temperature of motor at its surface and issue E3 error if
too high(above 110℃).
7) Firmware program; is used to update the firmware with notebook and interfacing
connector.
Main board

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3.6 Main Controller Board
3.7 Display Controller Board

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4. Disassembling
4.1 Front panel and controller board
1) Remove the 2 ea of screws at the front part of the bottom plate.
2) Detach the front panel with pushing the front panel upward.
3) Detach all of the connector.(be sure to make a mark of position)
4) Remove 6 ea of screws at the main board bracket.
5) Detach the main controller board from the device.
6) Remove 7 ea of screws at the display controller board.
7) Detach the display controller board.

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4.2 Door Assembly
1) Remove the 2 ea of M6x10 screws at the hinge part of the door assy.
2) Detach the door assy from the device.
3) If needed, the 2 hinges can be detached.
4.3 Motor cover & Chamber
1) Detach the motor cover.
2) Detach the Chamber.

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4.4 Door Lock Assembly
1) Detach the connectors of solenoid and door sensor from the main board.
2) Remove 4ea of M5x10 screws at the door lock assembly
3) If needed, door sensor or solenoid can be replaced.
4) Apply grease to the blue circled area for its durability.
4.5 Motor assembly
<Ver 1> <Ver 2>
1) Remove 3 ea of screws from the motor bracket.
2) Detach the motor assy

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4.6 Anti-vibration rubber
1) Remove 3 ea of nuts from the motor bracket.
2) Detach the motor bracket.
3) If needed, detach the anti-vibration rubber assy to replace them.
4.7 Imbalance sensor assembly
<Ver 1> <Ver 2>

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1) Remove the 2 ea of screws.
2) Detach the imbalance sensor assy.
3) Remove the 4 ea of screws.
4) Detach the imbalance sensor (Hall sensor).
5) In the case of adjusting the imbalance sensor, refer to 5.3
4.8 RPM sensor assembly
1) Detach 2 ea of screws at the bottom of the motor assy.
2) Detach the RPM sensor

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5. Service Mode and Adjustment
5.1 Transition into service mode
On the Control panel
1) Power ON while pushing the RPM key and TIME key at the same time
2) When beep sounds push the UP( ) key and push the DOWN( ) key of left
side(RPM) until “Set Window” appears. (beginning of Service mode).
5.2 Handling values
1) Confirm the set values with left side Up/Down key.
The numeric value on the right FND varies by one. (refer to figure below)
2) Imbalance sensitivity can be adjusted by left side Up/Down key only when the right
numeric value is ‘9’. And it can be saved by pushing the RPM key and TIME key at
the same time.
3) Power off to return from service mode.
RPM Current
Motor output frequency
Motor output voltage
Motor input voltage
Motor Temperature
Main program
Motor running time total
Imbalance distance
Imbalance error range

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5.3 Procedure for Imbalance adjustment
1) Press ▲ or ▼ above RPM/RCF until the number of right side becomes “8” as
the picture below.
Displayed Value(176) means HALL i.e. the physical distance status of the hall
sensor.
The normal value of imbalance sensor lies between 180 and 190. If it lies
between 170 and 200, the sensor position is fine. The adjustment to align
the sensor position is not needed.<Ver 2 Type: 70~100>
2) Press ▲ or ▼ above RPM/RCF until the number of right side is “9” as below
picture.
Displayed Value(10) means Imbalance i.e. The tolerance of imbalance
sensitivity window
Set the imbalance range to become 176 +/- 10(86 +/-20).
If the distance of imbalance sensor goes over 176 +/- 10(86 +/-20), the
sensor will make alarm for warning.
Increase Number: to Lower sensitivity
Decrease Number: to Higher sensitivity
The values can be changed by pressing RPM/RCF button to increase the
value or Time button to decrease the value.
3) Press and buttons simultaneously to save the value.

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5.4 Door lock ass’y adjustment
By some reason when the door does not fit, so it does not open or close normally,
the Door lock ass’y can be adjusted.(position moved).
1) Detach the front panel.
2) Loosen the 4 screws fixing the Door lock.(red circle)
3) Reposition the Door lock
4) Fasten the screws.

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6. Error code and Troubleshooting
6.1 Error code
In the event of a malfunction, an error message with code number appears indicating
the possible causes and the device is forced to stop. Turn off the power immediately,
identify the causes and follow the corrective actions as recommended below.
Error
Code Problem Possible Cause/Co
E1
RPM Sensor Error:
Failure to reach to 200 rpm
within 2 sec.
•Motor is out of order
•RPM Sensor is defective or damaged.
•RPM sensor cable or wire is not connected.
Corrective Action
•Turn the power switch off.
•Check RPM sensor and cable.
•Test again to see if the problem is repaired.
If the problem is not be fixed;
•Replace the RPM sensor assy
E2
Door Open Error:
Door opens during operation
•Door lock is loosened
•Door open sensor is defective or damaged.
Corrective Action
•Turn the power switch off.
•Detach the front panel.
•Test by Door button to see if the solenoid works.
•Adjust the Door lock position.
If the problem is not fixed;
•Replace the Door Lock assy or,
•Replace the solenoid assy and sensor
E3
Motor Overheated:
Detected internal temperature
is higher than 110 ℃
•Ventilation inlet opening is blocked.
•Temperature sensor is defective or damaged.
Corrective Action
•Clean the ventilation inlet opening or remove any
objects blocking inside.
•Turn the power switch off and wait about 1 hour with
the door opened for cooling down the motor.
•Test again to see if the problem remains.
If the problem is not fixed;
•Replace the motor
E4
Under voltage
Supply voltage to Motor is
lower than required.
•SMPS and Inverter on the main board does not work normally.
Corrective Action •Confirm the voltage under the Test mode.
•Replace the motor.
E5
Over voltage
Supply voltage to Motor is
lower than allowed.
•SMPS and Inverter on the main board does not work normally.
Corrective Action •Confirm the voltage under test mode.
•Replace the motor.
E6
Over speed
Actual rpm speed value is
higher 1,000 rpm than set
speed value
•Inverter on the main board does not work normally.
Corrective Action •Confirm the speed under test mode or by tachometer.
•Upgrade the firmware
If the problem is not fixed;
•Replace the motor
E7
Control system failure
Device does not work at all
•Failure of control firmware
Corrective Action •After power on, check if the beep sound issued.
•Check if the Power LED on the main board is on.