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EBA 21
Hettich EBA 21 Repair Instructions
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12.2.7
Block diagram control panel (A4)
+Ub
2
3
4
5
6
7
8
9
10
11
12
14
13
15
16
1
zur V
ersorgun
gsplat
ine (SB)
A1 / X2
to supply board
(S
B)
A1
/ X2
X1
GN
D
&
&
EEPROM
EPROM
Ste
ue
rte
il A
4
contro
l
p
anel A4
+5
V
+5
V
+5
V
T
asta
tur / ke
yb
oard
LCD - Di
splay
LED
-
An
zeige
LED
indi
cato
rs
µP
U (
5
.
0
0
V
)
re
f
Reset
V
ersch
luss
/ li
d lo
ckin
g
FC S
top
De
ckel
off
e
n / l
i
d op
en
RxD
empfangen
/ senden
listen / talk
TxD
Unwucht
/ imbalanc
e
FC - ERROR
Ta
c
h
o
i
n
T
emp.-fühler
temp.
sensor
Kühlu
ng aus / ein
cool
ing off / on
Überte
mp.-erk
ennung
overt
emp. dete
ction
2
3
4
5
6
7
8
9
10
1
+Ub
GN
D
X101
2
41
X100
37
39
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
Other manuals for Hettich EBA 21
Operating Instructions
58 pages
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Hettich EBA 21 Specifications
General
Brand
Hettich
Model
EBA 21
Category
Laboratory Equipment
Language
English
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