DAF LF45, LF55 Series. Manual — part 358

5

LF45/55 series

Reading circuit diagrams

READING DIAGRAMS

3-1

3. READING CIRCUIT DIAGRAMS

The circuit diagram is intended to show the

various circuits in the simplest way possible.

Symbols are used to do this.

58

59

60

61

62

63

64

65

66

67

68

69

70

1000
1010

M

LIGHT SWITCH

SWITCH MAIN/ DIPPED BEAM

G107

C622

1101

5.0A

D609

G000

85

86

G107

85

86

G154

85

86

E002

1020

2105

2630

2110

2100

2111

2120

E084

2154

59 30

2

2

1

1

2

7.5A

1

2

4

1

87

G154

C506

D610

58

30

87

143

205
251

009
039
052

146

LAMP
MAIN
SWITCH

NO

68

CO

59

NC

65

87A

87A

G000

61

30

3.4

2

1

87

3.5

87A

E501056

1. In the diagram, the indications “1000” and

“1010” are shown at the top, left side.

Explanation to these indications:

1000 = power supply before contact.

1010 = power supply after contact.

2. The indication “M” is shown at the bottom of

the diagram, left side.

Explanation to this indication:

M = earth connection.

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READING DIAGRAMS

Reading circuit diagrams

LF45/55 series

3-2

3. To make it easier to find your way around

the circuit diagram, a “search bar” is

included at the bottom, which contains

numbers.

These numbers are called location

numbers.

In the legend to the circuit diagram the

description of the basic code (ECN) is

followed by the relevant location number.

In this way, a specific component can

immediately be located in the diagram.

4. There is an arrow above location numbers

60, 63, 64 and 68 in the example diagram.

At the bottom of this arrow is a number. This

number refers to the location number on the

search bar where you can find the relevant

wire number.

5. Under the “M” (earth connection) line, there

are the codes “NC”, relating to relay G154,

“CO”, relating to relay G107, and “NO”,

relating to relay G000.

What this code means:

NC = normally closed contact

CO = changeover contact

NO = normally open contact

These contacts can be found at the location

numbers shown under the codes “NC”,

“CO” and “NO”.

At the relay contacts shown in the diagram

you will also find the location numbers that

indicate the relay coil locations.

6. In the circuit diagram you will find the basic

codes (for example E002). What these

codes stand for can be found in the legend

to the relevant circuit diagram.

7. If the wire numbers remain unchanged they

will not be repeated in the circuit diagram.

For instance, in the example diagram wire

1101 is connected to connection point 87 of

relay contact G107, but also to connection

point 2 of component C622.

Wire 2100 (at location number 64) is

connected to connection point 30 of relay

G154, but also to connection point 85 of

relay G000, etc.

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5

LF45/55 series

Reading circuit diagrams

READING DIAGRAMS

3-3

Symbols used

E501591

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

0

I

0 I

I

I

0 I

I

I

30

86

85

1

2

87A

87

3

2

1

4

5

P

P

T

P

T

U

U

N

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5

READING DIAGRAMS

Reading circuit diagrams

LF45/55 series

3-4

E502011

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

M

M

R

L

X1

X1

Y1

Y1

L

1

4

2

30B

DL

31

DO

M

P

G

3

2

1

U

M

CAN

CAN

VSC

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