Hermle Z 326 Original operating manual

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
Service Instruction
for
Universal
Centrifuge
Z 326

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
CONTENT
6 TECHNICAL DATA
6.1 Acceleration times
6.2 Deceleration times
6.3 Imbalance shut off data
7 SERVICE INSTRUCTIONS
7.1 General technical description
7.2 Electrical and electronical components
7.2.1 Power board
7.2.2 Control board
7.2.3 Control panel
7.2.4 Frequency converter
7.2.5 Rotor recognition
7.2.6 Over speed protection
7.2.7 Speed signal
7.2.8 Lid contact
7.2.9 Imbalance detection
7.3 Operation menu
7.3.1 Activation of the Operation menu (Part 1)
7.3.1.1 Submenu Motor starts
7.3.1.2 Submenu Duty cycle
7.3.1.3 Submenu Running time of the motor
7.3.1.4 Submenu Software status
7.3.1.5 Submenu Software status of the frequency converter
7.3.1.6 Submenu Error memory
7.3.1.7 Submenu Setup of the temperature
7.3.1.8 Submenu Setup of the signal generator
7.3.1.9 Submenu Setup of the keypad tone
7.3.1.10 Submenu Setup Volume of the signal generator
7.3.1.11 Submenu Setup of the signal melody
7.3.1.12 Submenu Check and calibration of the imbalance sensor
7.3.1.13 Submenu Indication of the imbalance value of the rotor
7.3.1.14 Submenu Keyboard test
7.3.1.15 Submenu Indication of the revision number of the control panel;
Check of the external imbalance sensor
7.3.2 Activation of the Service menu (Part 2)
7.3.2.1 Adjustment of the centrifuge type
7.3.2.2 Adjustment of the operation mode
7.3.2.3 Submenu Adjustment/Correction of the imbalance cut off value
7.3.2.4 Submenu Activating/Deactivating of the electronical Imbalance

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
CONTENT
7.4 Mounting support
7.4.1 Replacing the front housing
7.4.2 Replacing the incremental shaft encoder
7.4.3 Replacing the display
7.4.4 Replacing the foil keyboard
7.4.5 Removing the housing
7.4.6 Replacing the lid gasket
7.4.7 Replacing the lid
7.4.8 Replacing the hinges
7.4.9 Replacing the aerial (rotor sensor)
7.4.10 Replacing the motor resp. the motor bearings
7.4.11 Replacing the power board
7.4.12 Replacing the frequency converter
7.4.13 Checking and replacing the imbalance sensor
7.4.14 Replacing the control panel
7.4.15 Replacing the braking resistance
7.4.16 Replacing the signal generator
7.4.17 Replacing the lid lock
8 TROUBLE SHOOTING
8.1 Error messages: Cause / Solution
8.2 Survey of possible error messages and their solutions
8.2.1 Lid release during power failure
8.2.2 Description of the error message system
8.2.3 Error messages
9 MAINTENANCE
9.1 Service and maintenance
9.1.1 Maintenance and cleaning
9.1.2 Glass breakage
9.1.3 Disinfection
10 CIRCUIT DIAGRAMS
10.1 Flow diagrams
10.1.1 Flow diagram 230 V / 120 V / 50-60 Hz; Page 1
10.1.1 Flow diagram 230 V / 120 V / 50-60 Hz; Page 2
11 SPARE PART LIST
Technical modification rights reserved.
© HERMLE Labortechnik GmbH 2010 / 01

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
6 TECHNICAL DATA
6.1 Acceleration times Z 326 (120 V / 230 V) in min/sec
Rotor-Number
Level 0
Level 1
Level 2
Level 3
Level 4
Level 5
Level 6
Level 7
Level 8
Level 9
221.12 V03
1:35
0:48
0:33
0:25
0:21
0:18
0:16
0:15
0:15
0:15
220.72 V06
1:51
0:52
0:36
0:28
0:23
0:20
0:18
0:15
0:14
0:14
221.16 V03
2:39
1:20
0:53
0:41
0:33
0:29
0:24
0:22
0:20
0:18
221.19 V02
1:57
1:01
0:40
0:31
0:25
0:22
0:20
0:18
0:17
0:16
221.54 V02
1:27
0:43
0:29
0:22
0:18
0:15
0:14
0:13
0:13
0:13
221.55 V02
1:28
0:43
0:29
0:22
0:18
0:15
0:14
0:12
0:13
0:13
220.78 V05
8:15
4:10
2:43
2:04
1:40
1:23
1:13
1:07
1:02
1:01
221.18 V02
7:00
3:23
2:16
1:41
1:27
1:14
1:00
0:53
0:53
0:55
221.20 V02
5:09
2:39
1:45
1:20
1:13
1:12
1:16
1:17
1:18
1:17
221.22 V02
6:01
2:58
1:59
1:29
1:12
1:01
0:58
0:46
0:42
0:42
221.28 V02
6:08
2:57
1:59
1:29
1:12
1:01
0:52
0:47
0:47
0:47
221.17 V03
3:13
1:37
1:05
0:49
0:39
0:34
0:30
0:27
0:27
0:27
220.87 V09
3:29
1:44
1:11
0:53
0:43
0:36
0:31
0:29
0:26
0:23
221.87 V10
3:30
1:45
1:10
0:59
0:43
0:36
0:31
0:28
0:25
0:24
221.23 V02
3:55
1:57
1:18
0:59
0:51
0:43
0:35
0:32
0:28
0:26
220.88 V07
2:37
1:18
0:53
0:40
0:33
0:28
0:24
0:22
0:20
0:18
220.92 V06
2:18
1:11
0:49
0:36
0:30
0:25
0:22
0:20
0:18
0:16
221.38 V01
2:08
1:05
0:45
0:34
0:28
0:23
0:21
0:19
0:16
0:15
6.2 Deceleration times Z 326 (120 V / 230 V) in min/sec
Rotor-Number
Level 0
Level 1
Level 2
Level 3
Level 4
Level 5
Level 6
Level 7
Level 8
Level 9
221.12 V03
3:18
0:45
0:34
0:28
0:25
0:22
0:19
0:18
0:18
0:16
220.72 V06
3:55
0:54
0:38
0:29
0:25
0:22
0:20
0:18
0:15
0:15
221.16 V03
7:27
0:49
0:34
0:26
0:23
0:19
0:18
0:17
0:16
0:16
221.19 V02
9:00
0:25
0:18
0:16
0:14
0:13
0:12
0:13
0:12
0:13
221.54 V02
3:42
0:32
0:22
0:18
0:15
0:14
0:13
0:11
0:11
0:11
221.55 V02
3:58
0:32
0:22
0:18
0:16
0:15
0:13
0:11
0:12
0:11
220.78 V05
23:27
3:52
2:32
1:55
1:33
1:17
1:06
0:58
0:52
0:46
221.18 V02
23:33
2:35
1:42
1:18
1:04
0:53
0:47
0:42
0:38
0:35
221.20 V02
17:22
2:03
1:24
1:04
0:53
0:47
0:41
0:39
0:36
0:36
221.22 V02
12:53
2:01
1:26
1:02
0:51
0:43
0:38
0:34
0:31
0:28
221.28 V02
14:35
2:02
1:22
1:03
0:51
0:44
0:38
0:35
0:31
0:29
221.17 V03
7:46
1:53
1:16
0:58
0:48
0:41
0:37
0:34
0:30
0:28
220.87 V09
5:11
1:12
0:49
0:37
0:30
0:26
0:22
0:20
0:18
0:16
221.87 V10
5:09
1:12
0:48
0:36
0:30
0:25
0:22
0:20
0:18
0:16
221.23 V02
5:02
1:32
1:02
0:47
0:38
0:32
0:28
0:24
0:23
0:20
220.88 V07
4:15
0:53
0:36
0:28
0:24
0:20
0:17
0:15
0:13
0:12
220.92 V06
3:46
0:54
0:37
0:29
0:24
0:21
0:18
0:16
0:14
0:13
221.38 V01
2:41
0:54
0:39
0:30
0:21
0:20
0:17
0:15
0:14
0:13

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
6 TECHNICAL DATA
6.3 Imbalance shut off data Z 326 (120 V / 230 V)
List of rotors which cannot be adjusted, but which are set by the work of using motion detectors.
Rotor-Number
Shut off speed
in rpm
Permitted imbalance
in gramme
Imbalance shut off
in gramme
220.78 V05
8500
5
8
221.18 V02
8000
5
10
221.20 V02
10000
5
7
221.22 V02
10500
5
9
221.28 V02
10500
5
9
221.17 V03
7000
3
5
220.87 V09
8500
3
5
221.87 V10
8500
3
5
221.23 V02
11000
3
4
220.88 V07
5000
3
5
220.92 V06
8500
3
4
221.38 V01
13000
2
4
List of rotors which can be adjusted by the adjustment knob. See chapter 7.2.9 and 7.4.13.
Rotor-Number
Shut off speed
(approx. values) in
rpm
Permitted imbalance
in gramme
Imbalance shut off
in gramme
221.12 V03
1200
5
6
220.72 V06
600
13
14
221.16 V03
1200
22
23
221.19 V02
1200
11
12
221.54 V02
800
10
11
221.55 V02
800
9
10
The acceleration and deceleration times may have slight fluctuations that depend on the unit and are
therefore guidelines only.

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
7 SERVICE INSTRUCTIONS
7.1 General technical description
Model Z 326 is a micro processor controlled laboratory centrifuge.
The actuation is a three phase asynchronous motor which is controlled by frequency converter.
Model Z 326 has an independent error detection program, displaying possible errors and therefore
supporting the trouble shooting process.
The unit is equipped with several safety features:
•Imbalance detection
•Motor over temperature protection
•Lid lock does not open until the standstill of the centrifuge
•Rotor over speed protection
Please follow below mentioned safety instructions for any kind of service actions:
•The capacitor of the frequency converter can be under voltage even when the unit is switched off.
•Do not leave units unsupervised, when parts of the housing have been removed and the unit is still
connected to the main power supply.
•Do not bypass the lid’s safety contacts and never work with the unit’s lid open.
•The VDE regulations are valid for all electrical work that has to be done.
7.2 Electrical and electronical components
7.2.1 Power board
The power board is serving the low voltage supply of the centrifuge control system.
The power board is electrically isolated and has a dielectric strength of DC 2.2 kV.

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
7SERVICE INSTRUCTIONS
7.2.2 Control board (PCB)
The control board consists of one plate. The board can only be exchanged completely.
If there is a defect you have to exchange the complete board, not only the printed circuit board.
All signal lines lead to the control board.
The PCB controls the entire centrifuge.
7.2.3 Control panel
The control panel consists of one LCD-display, one incremental shaft encoder, the upper front housing
and the foil keyboard. These parts can be exchanged separate. The incremental shaft encoder regulates
all parameters which are adjustable by pressing a key and which are indicated in the LCD-display. In the
speed display of the control panel the error message is indicated if there should occur any trouble
Upper Front Housing
LCD-Display
Incremental Shaft Encoder
shadrehgeber
Keyborad Foil

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
7SERVICE INSTRUCTIONS
7.2.4 Frequency converter
The frequency converter generates the drive signals for the asynchronous motor.
The converter leads the current generated by the motor during deceleration to a heating resistor to
reduce the current.
The frequency converter is connected with the power board by a serial interface.
There is a green LED on the converter which flashes when the frequency converter is working correctly.
A defect of the converter will be indicated in the TIME display as an error no. (See chapter 8).
7.2.5 Rotor recognition
The centrifuge will recognize the inputted rotor through the rotor identification transponder and the aerial
belonging to it right after the insert automatically. As soon as the lid gets closed the rotor number will be
indicated in the speed display.
(See photo in chapter 7.2.3)
Aerial
Transponder
Below side of the rotor

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
7SERVICE INSTRUCTIONS
7.2.6 Over speed protection
If the pre-selected rpm is higher as the permitted rpm of the rotor, the speed indication in the display will
be regulated to the max. speed permitted for this rotor.
The regulation will accelerate the rotor only to the permitted rpm of the rotor.
7.2.7 Speed signal
The actual speed is extracted by a hall-effect-sensor placed on the lower side of the motor.
There is a „preset/actual“ comparison in the control board. Thereupon a new “preset-signal”is given by
the control board to the converter.
(See also photo of chapter 7.2.6.)
7.2.8 Lid contact
The micro switch in the mechanism of the lid lock controls the correct closing of the centrifuge lid.
The switch may never be bypassed.
The lid lock is unlatched by an electro motor, receiving its signal from the control board.
The actual state is indicated in the display.
7.2.9 Imbalance detection
The imbalance detection is done in two ways.
A micro switch that controls for certain rotors the displacement of the motor and shut off if there it too
much imbalance. The micro switch should be adjusted according to the instruction of the company.
(See chapter 7.4.13. See also list 6.3)

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
7SERVICE INSTRUCTIONS
A movement sensor, which is mounted in the motor, is controlling the oscillating motion of the motor.
The unit stoops when the oscillating motions are too strong. Setup data specified by the manufacturer for
rotors controlled by a movement sensor cannot be changed.
7.3 Operation menu
Valid for the units of the category with frequency converter
(Units: Z20r, Z216MK, Z32HK, Z326K, Z 326, Z36HK, Z366, Seta2)
The operation menu helps the service personnel to locate defects. It is divided in two parts, which are
graded in several areas again from chapter 7.3.1 to 7.3.2.3.
Part 1 is accessible for the USER and different points can be read respectively settled.
This is also described in the instruction manual.
Part 2 is for internal use respectively for trained service personnel outdoors Hermle LABORTECHNIK
only. The control board can be adjusted to different units. Here the different parameters are determined
on the respective unit after an exchange of the control board.
Chapter 7.2.1
Chapter 7.2.2
Chapter 7.2.4
Chapter 7.2.8
Chapter 7.2.6
Chapter 7.2.9
Signal Transmitter
Break Resistance
on the back side

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
7 SERVICE INSTRUCTIONS
7.3.1 Activation of the operation menu (Part 1)
The menu can be started as follows:
•Open lid of the centrifuge and switch off main switch.
•Up to software version 1.26 press the keys time and prog hold them and at the same time switch on
the unit. From software version 1.27 please use the keys time and lid/open As you can’t know
beforehand which software is installed in the unit, you have to try which combination will start operation
menu.
•After the indication displays flash on, led go of the keys time and prog, resp. time and lid/open.
In the display „rpm/rcf“ the stored type of the centrifuge (i.e. 216) and below a letter (i.e. c) is indicated
for about 2 seconds. The letter stands for the different versions of the units which are currently stored
in the control board:
cfor cool
hfor heat
no for nothing
Now it follows a display test for about 5 seconds as shown here under.
or

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
7 SERVICE INSTRUCTIONS
Now you have entered the Service mode. By pressing the key accel/decel you go to the submenus.
Now in the display „accel/decel“ the word „service“ will flash. Only as long as this word is flashing, you
can scroll through the further submenus with the potentiometer.
You have to repeat this step constantly to enter the different submenus.
7.3.1.1 Submenu Motor starts:
Here you can read off the number of motor starts.
•Activate the operation menu as described in chapter 7.3.1.
•Turn the potentiometer until the special digit „service A“ appears in the display „acc/dec”.
In the display „rpm/rcf“ the number of motor starts is indicated now.
7.3.1.2 Submenu Duty cycle:
Here you can read off the duty cycle of the unit.
•Activate the operation menu as described in chapter 7.3.1.
•Turn the potentiometer until the special digit „service H“appears in the display „acc/dec”.
In the display „rpm/rcf“ the duty cycle is indicated now.

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
7 SERVICE INSTRUCTIONS
7.3.1.3 Submenu running time of the motor:
Here you can read off the operating hours of the motor.
•Activate the operation menu as described in chapter 7.3.1.
•Turn the potentiometer until the special digit „service h“appears in the display „acc/dec”.
In the display „rpm/rcf“ the running time of the motor is indicated now.
7.3.1.4 Submenu Software status:
Here you can read off the software status.
•Activate the operation menu as described in chapter 7.3.1.
•Turn the potentiometer until the special digit „service S“appears in the display „acc/dec”.
In the display „rpm/rcf“ the actual software status is indicated now.

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
7 SERVICE INSTRUCTIONS
7.3.1.5 Submenu Software status of the frequency converter:
Here you can read off the software status of the frequency converter.
•Activate the operation menu as described in chapter 7.3.1.
•Turn the potentiometer until the special digit „service r“appears in the display „acc/dec”.
In the display „rpm/rcf“ the actual software status of the frequency converter is indicated now.
7.3.1.6 Submenu Error Memory:
Here the 99 last occurred error messages can be indicated.
•Activate the operation menu as described in chapter 7.3.1.
•Turn the potentiometer until the special digit „service E“appears in the display „acc/dec”.
•By pressing the key rpm/rcf the display „rpm/rcf“ is activated and you can scroll through the
error list with the potentiometer.
•Now the 99 last occurred error messages are indicated in the display „rpm/rcf“. Whereas the
first two numbers do describe the place number and the last two numbers do describe the
occurred error.

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
7 SERVICE INSTRUCTIONS
The following table gives information on the individual error messages:
Error No.
Error Description
Imbalance and rotor error
01
Imbalance occurred
02
Imbalance sensor is defective
04
Imbalance switch has been activated for longer than 5 seconds
from software status 1.28
08
Transponder in the rotor is defective or wrong resp. missing data in
the rotor database
from software status 1.28
Temperature error (for refrigerated units only)
11
Temperature sensor is defective
12
Chamber over temperature
General error
14
up to software status 1.32:
Leap of speed is too big between two measurements.
from software status 1.33:
Speed problems; opening of the lid is blocked for a specific time.
Lid error
33
Lid is open while motor is spinning
34
Lid contact is defective
38
Lid motor is blocked:
all software statuses
from software status 1.26:
the lid lock is blocked for 30 seconds, thereby it can’t be overheated
Converter error
40
Communication with converter disturbed during start
41
Communication with converter disturbed during stop
42
Short circuit in the converter
43
Undervoltage converter
44
Overvoltage converter
45
Over temperature converter
46
Over temperature motor
47
Over current converter
48
Timeout between control unit and converter
49
other error of the converter
Speed error
55
Overspeed
Setup error
99
Rotor is not allowed in this centrifuge

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
7 SERVICE INSTRUCTIONS
7.3.1.7 Submenu Setup of temperature:
(for refrigerated units only)
Here you can change the temperature unit from degree Celsius (°C) to degree Fahrenheit (°F)..
•Activate the operation menu as described in chapter 7.3.1.
•Turn the potentiometer until the special digit „service c“appears in the display „acc/dec”.
•By pressing the key rpm/rcf the display „rpm/rcf“ is now activated and you can setup the
respective temperature unit with the potentiometer.
•Now the temperature is indicated in °C resp. in °F during the normal operation.
Attention: After all points have been reviewed and/or set up, you have to press shortly the key
start to store all parameters. Otherwise the setups were all for nothing. If the storage has been
successful in the display „rpm/rcf“ the value of the imbalance sensor and the word „StorE“ are
indicated.
7.3.1.8 Submenu Setup of the signal generator:
Here you can switch on resp. switch off the signal generator (audible sound).
•Activate the operation menu as described in chapter 7.3.1.
•Turn the potentiometer until the special digit „service L“appears in the display „acc/dec”.
•By pressing the key rpm/rcf the display „rpm/rcf“ is now activated and you can setup the
respective option with the potentiometer.

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
7 SERVICE INSTRUCTIONS
•Now the audible sound is activated resp. not activated by the end of the run or when an error
message will occur.
Attention: In case that the signal generator is switch off, the keypad tone and the audible error
message will also be suppressed.
The keypad tone has to be switched on again after the reactivation of the signal generator.
However the audible error message is automatically activated if the signal generator has been
reactivated.
Attention: After all points have been reviewed and/or set up, you have to press shortly the key
start to store all parameters. Otherwise the setups were all for nothing. If the storage has been
successful in the display „rpm/rcf“ the value of the imbalance sensor and the word „StorE“ are
indicated.
7.3.1.9 Submenu Setup of the keypad tone:
Here you can switch on resp. switch off the keypad tone.
•Activate the operation menu as described in chapter 7.3.1.
•Turn the potentiometer until the special digit „service b“appears in the display „acc/dec”.
•By pressing the key rpm/rcf the display „rpm/rcf“ is now activated and you can setup the
respective option with the potentiometer.
•Now the keypad tone is either activated or not activated.
Attention: In case that the signal generator is switch off, the keypad tone and the audible error
message will also be suppressed.
The keypad tone has to be switched on again after the reactivation of the signal generator.
However the audible error message is automatically activated if the signal generator has been
reactivated.

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
7 SERVICE INSTRUCTIONS
Attention: After all points have been reviewed and/or set up, you have to press shortly the key
start to store all parameters. Otherwise the setups were all for nothing. If the storage has been
successful in the display „rpm/rcf“ the value of the imbalance sensor and the word „StorE“ are
indicated.
7.3.1.10 Submenu Setup volume of the signal generator:
Here you can setup the volume of the loudspeaker in case the signal generator is activated.
•Activate the operation menu as described in chapter 7.3.1.
•Turn the potentiometer until the special digit „service u“appears in the display „acc/dec”.
•By pressing the key rpm/rcf the display „rpm/rcf“ is now activated and you can setup the
respective option with the potentiometer.
•At the end of the run you can now hear the audible sound in the setup volume whereas 0 is
the most quiet setup and 9 the loudest one.
Attention: After all points have been reviewed and/or set up, you have to press shortly the key
start to store all parameters. Otherwise the setups were all for nothing. If the storage has been
successful in the display „rpm/rcf“ the value of the imbalance sensor and the word „StorE“ are
indicated.

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
7 SERVICE INSTRUCTIONS
7.3.1.11 Submenu Setup of the signal melody:
Here you can setup the melody at the end of the run in case the signal generator is activated.
•Activate the operation menu as described in chapter 7.3.1.
•Turn the potentiometer until the special digit „service G“appears in the display „acc/dec”.
•By pressing the key rpm/rcf the display „rpm/rcf“ is now activated and you can setup the
respective option with the potentiometer.
•Now the setup melody will be played by the end of the run, whereas you can choose between
0 and 9 setups (anyway 10 melodies).
Attention: After all points have been reviewed and/or set up, you have to press shortly the key
start to store all parameters. Otherwise the setups were all for nothing. If the storage has been
successful in the display „rpm/rcf“ the value of the imbalance sensor and the word „StorE“ are
indicated.
7.3.1.12 Submenu Check and calibration of the imbalance sensor (Movement sensor):
Here you can check or re-calibrate the imbalance sensor.
•Activate the operation menu as described in chapter 7.3.1.
•Turn the potentiometer until the special digit „service F“appears in the display „acc/dec”.
Non-calibrated indication

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SERVICE INSTRUCTION Z 326
© HERMLE Labortechnik GmbH
Version 01/2010
7 SERVICE INSTRUCTIONS
•In the bottom line the real current value is indicated (in the picture „116“).In case this value is
outside „115“ +/- 1 (in the picture „117“) you have to calibrate it by pressing the key rpm/rcf.
As a result „C 115“ +/- 1 will also be indicated in the top line in case the calibration has been
successful.
Attention: This setup should be done by service personnel only.
•If the word „Error“ appears in the display, the imbalance sensor is defective and you have to
replace the whole rotary encoder board (mounted on the below side of the motor).
Attention: In case you have to replace the motor or the rotary encoder board for any reason, a
new calibration is required urgently. The mechanical imbalance switch (micro switch) has to be
re-adjusted, too. (see chapter 7.4.13)
Attention: After all points have been reviewed and/or set up, you have to press shortly the key
start to store all parameters. Otherwise the setups were all for nothing. If the storage has been
successful in the display „rpm/rcf“ the value of the imbalance sensor and the word „StorE“ are
indicated.
7.3.1.13 Submenu Indication of the imbalance value of the rotor:
Here you can read off the imbalance value of the rotor transponder.
•Activate the operation menu as described in chapter 7.3.1.
•Turn the potentiometer until the special digit „service Y“ appears in the display „acc/dec“.
•In the bottom line of the display „rpm/rcf“ the real imbalance value is indicated. In the top line
the rotor number is indicated (in this case 221.17 V0?).