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EBA 21
Hettich EBA 21 Repair Instructions
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12.2 Circuit
diagrams
12.2.1 Abbreviations
of
the cable colours
Abbreviation Colour
BK black
BN brown
BU blue
GD gold
GN green
GNYE green-yellow
GY grey
OG orange
PK pink
RD red
SR silver
TQ turquoise
Transp. transparent
VT violet
WH white
YE yellow
31
33
Table of Contents
Default Chapter
3
Table of Contents
3
1 Introduction
5
2 Symbol Meanings
5
3 Description of the Centrifuge
6
Control Panel (A4)
6
Supply Board (A1)
6
Frequency Converter (A2)
7
Special Features
8
Brake Resistor (R1)
8
Motor / Tacho System
8
Lid Lock
8
Imbalance Switch
9
Safety Devices
9
4 Troubleshooting Procedures
9
5 Error Messages
10
Mains Reset
10
Brief Description
10
Description and Elimination of Errors
12
6 Settings and Interrogations
21
Initialization
21
Prerequisites for the Initialization
21
Initializing the Centrifuge
22
Imbalance Mode
23
Parameter Interrogation
23
Acoustic Signal
23
Working Hours
24
Checking the Motor Slippage
24
Setting the Display Contrast
25
Imbalance Switch-Off
25
7 Change Mains Input Fuse
26
8 Functional Check after a Repair
26
9 General Arrangement of the Components
27
10 Mounting and Removing Components
29
Removing the Centrifuge Chamber
29
11 Short the Mains Choke Coil (L1)
30
12 Technical Documents
31
Tachometer Code Configuration of the Rotors
31
Circuit Diagrams
32
Abbreviations of the Cable Colours
32
Mains Supply with Supply Board (A1) 230 V
33
Mains Supply with Supply Board (A1) 115 V
34
Circuit Diagram Supply Board (A1)
35
Connecting- and Component Diagram Supply Board (A1)
36
Signals in the Flat Ribbon Cable between Control Panel (A4) and Supply Board (A1)
37
Block Diagram Control Panel (A4)
38
Connecting Diagram Control Panel (A4)
39
Block Diagram Frequency Converter (A2) and Signals in Flat Ribbon Cable between Frequency Converter (A2) and Supply Board (A1)
40
Connecting Diagram Frequency Converter (A2)
41
Technical Specifications
42
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Operating Instructions
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Hettich EBA 21 Specifications
General
Brand
Hettich
Model
EBA 21
Category
Laboratory Equipment
Language
English
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