VWR VWR Mega Star 600R User manual

Service Manual
VWR Mega Star 600R
PN: 12001894-01
The original version of this manual is valid. VWR
cannot guarantee the accuracy or completeness of
subsequent copies

iTABLE OF CONTENTS
TABLE OF CONTENTS
Introduction iii
Revision Control iv
Chapter 1 Technical Data 1-1
Chapter 2 Service 2-1
Servicing Schedule 2-2
Trouble Shooting 2-4
Error Codes 2-6
Test Points 2-13
User Menu and Service Menu 2-15
Imbalance Behavior 2-19
Cleaning of Instrument Parts 2-19
Electrical Safety Check 2-20
Chapter 3 Functional Description 3-1
Block Functions 3-2
Main Board Functions 3-3
Display 3-5
Speed, Imbalance and Rotor Detection 3-5
Lid Lock System 3-5
Refrigeration System 3-6
Chapter 4 Electrical Diagrams 4-1
Overview 4-2
Power Supply 4-3
Controller 4-4
Protection Circuit 4-5
Frequency inverter 4-6
Imbalance RPM 4-7
Key Control 4-8
Chapter 5 Disassembly of Instrument Parts 5-1
Disassembly of Mechanical Parts 5-2
Replacement of Electrical Components 5-4
Replacement of Drive Components 5-6
Removal of AutoLock 5-7
Replacement of Refrigeration Components 5-9

INTRODUCTION ii
Chapter 6 Calibration (Reference Measurement) 6-1
Introduction 6-2
Requirements 6-2
Calibration (Reference Measurement) Procedure 6-3
Documentation 6-5
Chapter 7 Spare Parts 7-1
Preventive Maintenance Checklist A-1
Calibration Certification Form B-1
Technical Bulletins C-1

INTRODUCTION iii
INTRODUCTION
CAREFULLY READ THIS MANUAL BEFORE SERVICING YOUR
INSTRUMENT.
INFORMATION CONTAINED IN THIS DOCUMENT IS THE PROPERTY OF
VWR.
IT MAY NOT BE DUPLICATED OR DISTRIBUTED WITHOUT THE
OWNER’S AUTHORIZATION!
PURPOSE
This manual contains maintenance instructions intended for use by a qualified
maintenance or service technician.
It is organized to provide information on the theory of operation to assist in
troubleshooting for personnel of VWR and authorized service organizations.
Moreover, it outlines parts replacement and calibration procedures for putting
the centrifuges back into service.
Should a specific maintenance problem arise which is not covered in this
manual, please contact our after sales or product support department. Make
sure you have all necessary information on hand before contacting. This
information includes serial number, software ID and revision, NV-RAM ID
and revision, options and accessories installed and set parameters.

REVISION CONTROL iv
REVISION CONTROL
Revision Change
Date
01 Initial release 01.05.2015

1-1TECHNICAL DATA
VWR
Mega Star 600R
VWR
Mega Star 600R Micro
Environmental conditions
-Indoor use only
-Max. height above sea level 2000m
-Max. relative humidity 80% at 31°C
-
Linear decrease until 50% relative humidity at 40°C
Permissible ambient temperature
+2°C to +35°C
Timer range
10sec – 99h 59min and hold mode deviation: +/- 10 sec.
Max. speed
17850 rpm accuracy: +/- 10rpm
Min. speed
300 rpm accuracy: +/- 10rpm
Temperature set range
-10°C to +40°C
Max. kin. energy
10.1 kNm
Max. sound level at top speed
< 55 dB (A)
Volt Version
230V
Heat output BTU/h
1170
Power consumption
750 W
Rated current
4.0 A
Height (lid closed)
32 cm / 12.6 in
Height (lid open)
70 cm / 27.5 in
Width
46 cm / 18.1 in
Depth
67 cm / 26.4 in
Weight (without
rotor) 74 kg / 156 lbs
Rotor /
bucket Rotor name
Allowable
imbalance
[g]
max. speed
[rpm] max. rcf [xg] max radius [cm]
75005701 TX-150 Rotor 10 4350 3046 14.4
75005702 TX-150 Round Bucket 10 4350 3046 14.4
75005703 TX-150 Oval bucket 10 4350 3046 14.4
75005704 TX-100S 10 4350 3004 14.2
75005705 TX-100 10 4350 3046 14.4
75005706 M-10 Rotor 8 4400 2576 11.9
75005723 M-10 Unsealed Bucket 8 4400 2576 11.9
75005721 M-10 Sealed Bucket 8 4400 2359 10.9
75005600 MT-12 Rotor 4 13000 16438 8.7
75005709 HIGHConic III Rotor 10 9500 12108 12.0
75003623 CLINIConic Rotor 7 4400 3030 14.0
75005719 MicroClick 30x2 Rotor 4 14000 21693 9.9
75005715 MicroClick 24x2 Rotor 4 17850 30279 8.5
75003473 Hematocrit Rotor 1 capillary 13300 16810 8.5
75005643 PCR Strip Rotor 8x8 4 15000 17860 7.1
75007585 MicroClick 18x5 Rotor 4 14000 22351 10,2
75003694 8x50 Sealed Vessel 10 5600 5014 14,3

2-1SERVICE
SERVICE
Servicing Schedule 2-2
Maintenance Routine without dismantling the centrifuge 2-2
Maintenance Routine after dismantling the centrifuge casing 2-3
Trouble Shooting 2-4
Malfunctions without Error Messages 2-4
Error Codes 2-6
Overview 2-6
Detailed Error Description an Action Plan 2-8
Test Points 2-13
User Menu and Service Menu 2-15
How to enter the User Menu 2-15
How to enter the Service Menu 2-15
User Menu Structure 2-16
Service Menu Structure 2-17
Imbalance Behavior 2-19
Cleaning of Instrument Parts 2-19
Electrical Safety Check 2-20

2-2SERVICE
Servicing schedule
This chapter describes the maintenance work to be performed on a yearly basis.
A checklist can be found in the attachment A-1.
Maintenance routine without dismantling the centrifuge
Electrical installation and safety
Switch OFF the centrifuge and disconnect the unit from power, check voltage supply and mains
fusing (16 (15) 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.
Location and mechanical installation
Check the base (ground, table, trolley 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 leveling of the centrifuge drive with help of a spirit level.
Lid latch mechanism and safety circuit
Connect the centrifuge to power and switch ON.
Check for correct lid closing and opening - if in disorder, readjust lid, hinges and/or lid latch.
Check the rubber gasket for correct sealing and replace, if damaged.
Check gas lid stay for correct function.
Check the electronic safety circuit: start the centrifuge. Let it shortly run and press stop. The lid
must not be unlocked by the microprocessor as long as the speed is more than 60 rpm - if safety
circuit is out of function, replace main board.
Cleanliness of rotor chamber and motor cover
Open the lid and remove the rotor by pressing the green AutoLock button in the center of the
rotor.
Clean the spin chamber with a dry and absorbent cloth (remove all dust and moisture - see also
page 2-18 for cleaning).
Check the cleanliness of the motor cover and take special care of the slot between the bowl and
the motor cover: penetrating fluids can damage the motor and/or electronics and foreign objects
may block the air flow.
Condition and sealing of rotors and accessories
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 corrosion.
Check the condition of rotor and/or accessory sealing and replace them in case of malfunction.

2-3SERVICE
AutoLock and motor shaft
Check the perfect condition of the AutoLock system. In case of malfunction use tool Kit
# 70904693 to change the AutoLock. (see page 5-7)
Check the condition of the drive motor shaft: the centrifuge must not be used any longer, if the
drive shaft is damaged (e.g. bend or it’s bearings are worn out).
Temperature level
Check the air inlet slots for free ventilation. Insufficient air flow will lead to an inadmissible
temperature rise of the motor and electronic parts.
Refrigeration unit
Install a rotor, set the temperature to -10°C and the speed to 300rpm. Start the centrifuge. After
10 minutes stop it and check that the chamber is cold all over.
Imbalance behavior
Install available and empty rotors and check the imbalance behavior with rotor dependant cut off
and run through weights (see page 2-19) and replace worn anti vibration mounts, faulty main
board or sensor cover.
Maintenance routine after dismantling the centrifuge casing
Motor supporting elements
Check the anti vibration mounts of the drive motor and replace them in case of increased rubber
abrasion or abnormal occurrence of imbalance but at least after 3 years of usage.
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.
Clamp and plug connections of wires
Check the clamp and plug connections of all leads on the main board and all electrical Protection
earth core and grounding connections.
Check the grounding connection for continuity and all grounding plug connectors. (see also page
2-20 Electrical Safety Check)
Check insulation resistance and accessible current. (see page 2-20)

2-4SERVICE
Trouble shooting
Malfunctions without error code
Error Error Cause Possible Error
Source Corrective Procedure
Display
remains off
no mains
voltage supply
power switch with
integrated thermal
over current cut out Check supply voltage at XN1. If no voltage
is present, check power switch, instrument
socket and voltage supply.
Replace defective parts
mains fuse or circuit
breaker failed
faulty mains cord or
instrument socket
no low
voltage
supply for
display
faulty connection
from main board to
display Check presence of 5VDC, 15VDC and
24VDC control voltages on main board. If
a voltage is missing replace main board.
Check the display cable (SSTP patch
cable). Replace the display.
faulty display or
main board
Display
backlight is
lit, but
nothing
displayed
or
display
shows
cryptically
(wrong)
characters
data
connection
disturbed
faulty connection
from main board to
display
Check for interferences such as radios,
micro wave ovens, etc. Check for good
grounding connection. Check the display
cable (SSTP – shielded cable). If no other
error
source can be identified, replace main
board.
No display
backlight
LCD
powersafe
mode
Press any button. To switch off the LCD
powersafe mode enter the system menu.
faulty
backlight faulty backlight Replace display.
Display
shows
BOOTING…
CPU program
reset may be
caused by
EMI
supply voltage drop
(>10%)
(Let) improve the power supply. If the
voltage drops often, use a voltage
stabilizer.
bad or missing
grounding
connection check all grounding connections

2-5SERVICE
Error Error Cause Possible Error
Source Corrective Procedure
Drive
makes
noises,
no good
separation
result
mechanical
worn anti vibration
mounts
Check anti vibration mounts and replace if
worn or older than 3 years.
(see page 5-6)
Trunnions of
swinging bucket
rotor not greased
sufficiently
Inform users that trunnions must be
cleaned and greased on a regular basis.
See user manual for more information.
Buckets of swinging
bucket rotor not
weight identical Check weight index on buckets.
bad motor bearings Turn motor by hand. If a scratching noise is
audible, replace complete motor.
electrical missing phase Check winding and insulation resistance of the motor (see test points). If the motor and
it’s leads are ok, replace main board.
faulty electronic
Buttons
inoperative
overlay or
overlay
adaptor has
no contact
ribbon cable broken,
or no contact
Check correct sitting of ribbon cable in
overlay adaptor. Check ribbon cable
between overlay adaptor and main board.
Replace defective overlay, overlay adaptor
or ribbon cable.

2-6SERVICE
Error-Codes
Should multiple errors occur at the same time, the centrifuge will display up to 3 errors at once, by
alternating them on the display.
Overview (details on following pages)
Error Description
E-001 System clock unstable
E-002 Main state machine corrupted (software)
E-005 System reset by watchdog
E-008 Check sum error ROM test
E-010 NV-RAM communication error
E-011 NV-RAM does not match E-PROM
E-012 Check sum error NV-RAM constant area
E-014 Chamber over temperature: t > 50°C
E-015 Temperature sensor open
E-016 Temperature sensor short
E-017 Speed above rotor recognition speed limit
E-019 Rotor code not in rotor table
E-020 Rotor code corrupted
E-021 Rotor recognition and speed 1 measurement disturbed
E-022 Speed 2 measurement disturbed
E-023 Difference between speed 1 and speed 2 signals
E-025 Lid could not be opened
E-027 State of lid latch micro switches implausible
E-029 Motor does not turn
E-030 Control voltage failure
E-031 Motor over temperature: t > 130°C
E-033 High pressure in cooling system
E-034 Over voltage in power circuit
E-036 Over voltage or short circuit at inverter
E-038 Lid latch current abnormal (Speed 0)
E-040 Acceleration too slow
E-041 Offset voltage of imbalance sensor implausible
E-045 Safety test during restart failed
E-046 Lid opened during run
E-048 Software state machine error
E-050 Software state machine error
E-051 Software state machine error
E-052 Software state machine error
E-053 Software primary mask reading error
E-054 Software primary mask writing error
E-060 Chamber under temperature: t < -20°C
E-072 Software state machine error

2-7SERVICE
Error Description
E-074 Latch motor control fault
E-077 System health check error
E-078 Set speed above max speed
E-079 Speed above rotor maximum: >25rpm
E-080 Rotor detection failed
E-081 Second top speed check failed
E-083 Brake resistor over temperature
E-098 Imbalance detected
E-099 Set speed too high for rotor (in “Programs only” mode)
E-101 Temperature measurement shows great deviations to expected values
E-104 Temperature measurement could not be completed
E-105 Software state machine error
E-106 Lid latch current abnormal (Speed >0)
E-107 Main board over-temperature
E-108 Latch test failed or stepper motor micro switch failed

2-8SERVICE
Detailed error description and action plan
Error Possible Error
Source Corrective Procedure Possible spare part
E-001 System clock on
main board failed
The rotor is coasting freely.
Wait for rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. If the error persists,
replace main board.
Main board
E-002 Internal software
problem
The rotor is coasting freely.
Wait for rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. If the error persists,
replace main board.
Main board
E-005 Internal software
problem
The rotor is coasting freely.
Wait for rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. If the error persists,
replace main board.
Main board
E-008 ROM failed
The rotor is coasting freely.
Wait for rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. If the error persists,
replace main board.
Main board
E-010
Wrong NV-RAM,
communication
between NV-RAM
and main controller
disturbed
The rotor is coasting freely.
Wait for rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. If the error persists,
check NV-RAM and socket.
Insert the correct NV-RAM
NV-RAM
E-011 check versions of
NV RAM and
E-PROM replace NV RAM with correct one NV-RAM
E-012 NV-RAM failed
The rotor is coasting freely.
Wait for rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. If the error persists,
replace NV-RAM.
NV-RAM
E-014
Compressor does
not work,
low refrigerant,
fan inoperative
Refrigerated units only: The rotor is decelerated with
maximum braking. DO NOT TOUCH ANY INSIDE PARTS
AFTER OPENING THE LID! BURN HAZARD! Perform
compressor test (Service Menu), check fan and remove
dust from condensing unit. Replace defective parts.
In case of low refrigerant, use leak detector, repair leak
and recharge system.
Compressor
Fan
TEV
Refrigerant
E-015 Temp. sensor,
control circuits
Refrigerated units only: The rotor is decelerated with
maximum braking. Disconnect PT1000 from main board
(X3) and check resistance
(R = 1,000Ω @ 0°C or 1,078Ω @ 20°C). Replace faulty
PT1000 or faulty main board.
PT1000
E-016 Temp. sensor,
control circuits
Refrigerated units only: The rotor is decelerated with
maximum braking. Disconnect PT1000 from main board
(X3) and check resistance
(R = 1,000Ω @ 0°C or 1,078Ω @ 20°C). Replace faulty
PT1000 or faulty main board.
PT1000
E-017
Rotor recognition
failed
Power interruption,
Reset during run
The rotor accelerated to more than 2,000 rpm without
being recognized.
Or: After power reset the speed is above 2,000rpm. The
rotor is coasting freely. Check mains power supply.
Restart centrifuge. If the error persists replace main board.
Rotor
Main board

2-9SERVICE
Error Possible Error
Source Corrective Procedure Possible spare part
E-019
Wrong rotor
installed,
old version of NV-
RAM
The rotor is decelerated with maximum braking.
Install correct rotor.
Install latest NV-RAM version.
Rotor
NV-RAM
E-020
Wrong rotor
installed,
Rotor coding
faulty,
Interference,
NV-RAM faulty
The rotor is decelerated with maximum braking.
Check rotor in other centrifuge. If rotor is found faulty,
return to
factory for repair. DO NOT REMOVE THE CODE
RING!
Separate motor cables and signal cables, otherwise
interference is caused.
If the error persists, replace NV-RAM
Rotor
NV-RAM
E-021 Sensor cover
faulty,
Interference
The rotor is coasting freely.
Separate motor cables and signal cables, otherwise
interference is caused.
Replace sensor cover.
Sensor cover
E-022 Sensor cover
faulty,
Interference
The rotor is coasting freely.
Separate motor cables and signal cables, otherwise
interference is caused.
Replace sensor cover.
Sensor cover
E-023 Sensor cover
faulty,
Interference
The rotor is coasting freely.
Separate motor cables and signal cables, otherwise
interference is caused.
Replace sensor cover.
Sensor cover
E-025 Latch failed,
Cable interrupted,
Main board failed
Check operation of stepper motor when pressing lid
button. Disconnect stepper motor from main board (X9)
and check resistance (12 = 46Ω, 34 = 46Ω). If
stepper motor/cable is ok, replace main board.
Lid latch
E-027 Latch or wires
broken
Switch 2 is closed when switch 1 is open = implausible.
Check micro switches and wires. Replace latch. If latch is
ok, replace main board. Lid latch
E-029
No rotor installed,
Motor/rotor
blocked,
Motor faulty,
No speed signal,
Motor driver on
main board faulty
The rotor is coasting freely. CHECK FOR NO ROTATION
OF ROTOR THROUGH LID WINDOW BEFORE
OPENING THE LID!
Check the motor/rotor for no blocks. Turn rotor by hand
and check for no abnormal noise and friction.
Close lid and press start. Check through window if rotor
starts turning. If rotor turns, check cables of sensor cover
and/or replace it.
If rotor does not turn, check winding resistance and
insulation resistance of motor. If motor is ok, replace main
board
Motor
Main board
Sensor cover
E-030 Mains voltage too
low,
Main board failed
The rotor is coasting freely.
Check mains power supply.
Replace Main board Main board
E-031
Hot motor,
no air circulation,
faulty over temp.
cut-out.
The rotor is coasting freely.
DO NOT TOUCH THE MOTOR, ROTOR AND/OR
ADJACENT PARTS! BURN HAZARD! Wait for motor to
cool down. Check ventilation slots for cleanliness and
check fans for operation.
Turn rotor by hand and check for no abnormal noise and
friction.
Disconnect motor over temperature cut out from main
board (XM4) and check it for continuity. Replace motor in
case of malfunction.
Motor
Fan

2-10SERVICE
Error Possible Error
Source Corrective Procedure Possible spare part
E-033
No ventilation,
Pipes blocked,
Faulty over
pressure switch
Refrigerated units only:
The rotor is decelerated with maximum braking.
Check ventilation slots for cleanliness and check fans for
operation.
Disconnect over pressure switch from main board (XO1)
and check it for continuity. Replace it in case of
malfunction. Check for blocks in the refrigeration pipes
(trained and authorized refrigeration engineers only)
Fan
TEV
OP switch
E-034 Brake resistor
open,
main board faulty
The rotor is coasting freely.
Disconnect brake resistor from main board (X6) and
check resistance (120Ω). Replace if faulty, otherwise
replace main board.
Brake
resistor
Main board
E-036
Brake resistor
open or short,
Motor winding
short,
Main board faulty
The rotor is coasting freely.
Disconnect brake resistor from main board (X6) and
check resistance (120Ω). Replace brake resistor if faulty.
Disconnect motor from main board (XM) and check
winding resistance. Replace motor if faulty.
Otherwise replace main board
Brake
resistor
Main board
Motor
E-038 Internal software
problem
The rotor is coasting freely.
Wait for rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. If the error persists,
replace main board.
Main board
E-040
Extreme
imbalance,
motor bearings,
motor phase
missing
The rotor is decelerated with maximum braking.
Check for imbalanced load. Check motor for smooth
turning. Disconnect motor from main board (XM) and
check winding resistance. Replace motor if faulty.
Otherwise replace main board.
Motor
Main board
E-041 Imbalance sensor
faulty The rotor is decelerated with maximum braking. Replace sensor cover. Sensor cover
E-045 Power interruption
during run AND
speed signal error
The rotor is coasting freely.
During run a power outage happened. After power
recovery the rotor speed is 0. The rotor is turned at low
speed and no speed signal is detected.
See “E-29”
Sensor
cover
Main board
E-046
Emergency lid
opening detected
during run,
Faulty micro switch
The rotor is coasting freely.
CLOSE LID IMMEDIATELY!
NEVER OPEN THE LID WHILE THE ROTOR IS
SPINNING. Wait for rotor to stop.
In case of faulty micro switches replace latch.
Lid latch
E-048
to
E-052
Internal software
problem
The rotor is coasting freely.
Wait for rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. If the error persists,
replace main board.
Main board
E-053
to
E-054
Internal software
problem
The rotor is decelerated with maximum braking.
Wait for rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. If the error persists,
replace main board.
Main board
E-060
Compressor
control fault,
Temperature probe
fault
Refrigerated units only:
The rotor is decelerated with maximum braking.
DO NOT TOUCH THE INSIDE OF CHAMBER AND
ROTOR WITH BARE HANDS! FREEZE HAZARD!
Disconnect PT1000 from main board (X3) and check
resistance (R = 1,000Ω @ 0°C or 1,078Ω @ 20°C).
Replace if faulty. Otherwise replace main board.
Main board
PT1000

2-11SERVICE
Error Possible Error
Source Corrective Procedure Possible spare part
E-072 Internal software
problem
The rotor is coasting freely.
Wait for rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. If the error persists,
replace main board.
Main board
E-074 Latch motor
broken / blocked,
Main board failed
The rotor is decelerated with maximum braking.
Wait for rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. Check the latch by
opening and closing the lid. If faulty, replace lid latch.
Otherwise replace main board
Lid latch
Main board
E-077 Internal software
problem
The rotor is coasting freely.
Wait for rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. If the error persists,
replace main board.
Main board
E-078 Motor control fault
The rotor is decelerated with maximum braking.
Wait for rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. If the error persists,
replace main board.
Main board
E-079 n > nrotor max +100 The rotor is coasting freely.
The controller is not able to control the rotor speed
properly. Replace main board. Main board
E-080 Internal software
problem
The rotor is coasting freely.
Wait for rotor to stop and turn the power switch off. Wait
5 seconds before turning it back on. If the error persists,
replace main board.
Main board
E-081 Internal software
problem
The rotor is coasting freely.
Wait for rotor to stop and turn the power switch off. Wait
5 seconds before turning it back on. If the error persists,
replace main board.
Main board
E-083
Brake resistor
overheated,
No air circulation,
Main board failed
The rotor is coasting freely.
DO NOT TOUCH THE BRAKE RESISTOR! BURN
HAZARD!
Check ventilation slots for cleanliness and check fans for
operation.
Disconnect brake resistor from main board (X6) and
check resistance (120Ω). Replace brake resistor if faulty.
Otherwise replace main board
Main board
Brake
resistor
Fan
E-098 Imbalanced load
The rotor is decelerated with maximum braking.
Wait for rotor to stop, open lid and check for imbalance,
greased trunnions, etc. Balance the rotor and start again.
If the error persists check anti vibration mounts. Replace
mounts if worn or older than 3 years. If the error persists
replace sensor cover.
AV mounts
Sensor cover
E-101
to
E-104
Measurement
shows great
deviations
(+/- 5°C) to
expected values.
Refrigerated units only:
The rotor is decelerated with maximum braking.
Disconnect PT1000 from main board (X3) and check
resistance
(R = 1,000Ω @ 0°C or 1,078Ω @ 20°C). Replace
PT1000 if faulty. Otherwise replace main board.
Check also for interference.
PT1000
Main board
E-105 Internal software
problem
The rotor is decelerated with maximum braking. Wait for
rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. If the error persists,
replace main board.
Main board

2-12SERVICE
Error Possible Error
Source Corrective Procedure Possible spare part
E-106 Main board failed
The rotor is decelerated with maximum braking. Wait for
rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. If the error persists,
replace main board.
Main board
E-107 No air circulation,
Ventilated models only:
The rotor is coasting freely. Wait for rotor to stop and turn
the power switch off. Wait 30 minutes to allow cooling
down before turning it back on. Clean ventilation slots.
Remove dust from main board (unit disconnected from
mains!). If the error persists replace main board.
Main board
E-108 Stepper motor
position switch
failed
The rotor is decelerated with maximum braking. Wait for
rotor to stop and turn the power switch off. Wait 5
seconds before turning it back on. If the error persist,
check movement of stepper motor at power on. Check
the stepper motor position micro switch. Replace latch if
faulty, otherwise replace main board.
Lid latch
Main board
.

2-13SERVICE
Test Points
Test Point Unit Value Conditions
Mains input
XN1 230V / 120V CAUTION! Mains potential!
Mains cable connected, power switch ON
Motor
XM1, XM2, XM3
XM1-XM2 4.1 Ω
XM1-XM3 4.1 Ω
XM2-XM3 4.1 Ω
Ambient at 20°C, plugs disconnected from
main board.
Any phase to ground must have an infinite
resistance.
Brake resistor
X6 120 Ω Ambient at 20°C, cables disconnected from
main board
Over temperature
cut-out motor
XM4
15 VDC
0 VDC
Cables connected, power ON
Failure
Good
open
short
Cables disconnected, power OFF
Failure
Good
Lid latch micro switches
X10
Pin 1+4
0 VDC
2.5 VDC
Cables connected, power ON
Lid closed
Lid open
Pin 1+4
short
open
Cables disconnected, power OFF
Lid closed
Lid open
Pin 2+3
5 VDC
0 VDC
Cables connected, power ON
Standby
Stepper motor moves into zero state after lid has
been opened
Pin 2+3
open
short
Cables disconnected, power OFF
Standby
Stepper motor moves into zero state after lid has
been opened
Pin 5+6
0 VDC
2.5 VDC
Cables connected, power ON
Lid closed
Lid open
Pin 5+6
short
open
Cables disconnected, power OFF
Lid closed
Lid open
Lid latch stepper motor
X9 Pin 1-2 46 Ω
Pin 3-4 46 Ω Ambient at 20°C, plug disconnected from main board

2-14SERVICE
Test Point Unit Value Conditions
Refrigeration unit over
pressure cut out
XO1
0V
230V / 120V / 100V
CAUTION! Mains potential!
Cables connected, power ON
Failure
Good
open
short
Cables disconnected, power OFF
Failure
Good
Compressor
XG1 230V / 120V / 100V
~1.4A
CAUTION! Mains potential!
All cables connected, power switch ON,
compressor ON signal by controller
Electronics fan
X7 24 VDC Cables connected, power ON, fan ON signal by
controller
Condenser fan
X12 24 VDC Cables connected, power ON, , fan ON signal by
controller
Test Point Unit Value Conditions
5VDC 5 VDC Check across pin 1 and 2 of V60
(next to NV-RAM)
15VDC 15 VDC Check across V13 pin 2 and LED V1 pin 2.
CAUTION: Reference potential is U-
24VDC 24 VDC Check across V25 pin 2 (next to RJ45 socket) and
V60 pin 2 (next to NV-RAM)
Test Point (LED) Unit Value Conditions
DC bus voltage
LED V1 DC BUS (red)
lit All cables connected, power switch ON,
lid closed
dimly lit All cables connected, power switch ON,
lid open
Speed signal
LED V37 RUN (red)
lit All cables connected, power switch ON, lid open,
rotor installed, rotor / motor is turned by hand.
The LED must light 2 times during 1 revolution.
flashing
All cables connected, power switch ON, lid closed,
rotor installed, start pressed, rotor spinning. The
LED flashes 2 times per revolution. At speeds
above 2000 rpm the LED is lit.