DAF CF65, CF75, CF85 Series . Manual - part 785

11

200332

ᓻ

2-31

Changes in the electrical system from chassis number 0E570448

5

CHANGES IN THE ELECTRICAL SYSTEM

CF65/75/85 series

11

2.

AL

TERNA

TO

R/IGNITION/ST

ARTER

SWITCH/CHARGING

C

IRCUIT

CONT

ACT

CIRCUIT

If

ignition/starter

s

witch

C

539

is

turned

(contact

1

is

connected

to

p

in

6),

the

‘radio

accessories

power

supply

’

relay

(G377)

will

be

energised.

V

o

ltage

is

now

applied

to

c

ontact

1

of

relay

G377

through

fuse

E037,

wire

1

100,

contacts

1-6o

fs

w

it

c

hC

539,

wire

1

130.

When

G377

is

energised,

a

c

onnection

is

made

between

contacts

3

and

5

o

f

G

377

and

a

v

oltage

is

switched

from

the

c

onverter

to

the

radio.

ST

ARTING

C

IRCUIT

If

the

ignition

switch

C539

is

turned

(contact

1

is

connected

to

4

),

both

c

ontact

relay

G015

and

G426

will

be

activated

v

ia

wire

4001.

If

the

ignition

switch

is

turned

to

the

“start

”

position,

a

c

ontact

is

m

ade

in

this

switch

between

points

1

and

2.

The

power

is

now

supplied

from

the

batteries

through

fuse

E037,

the

c

onnection

1-2

from

the

ignition/starter

switch

and

wire

4004

on

connection

point

A3

of

the

a

larm

system.

When

the

a

larm

system

has

been

switched

of

f

using

the

remote

control,

or

by

activating

the

contact

(the

immobiliser

switches

the

a

larm

of

f

via

C

AN),

wire

4004,

connection

point

A3,

is

connected

to

w

ire

4004,

connection

point

A1.

The

c

oil

o

f

relay

G203

will

be

activated.

This

closes

connection

30

-

87.

A

v

oltage

is

now

applied

to

c

onnection

point

50

of

the

s

tarter

motor

,

through

fuse

E037,

wire

1

100,

relay

contacts

30

-

87,

wire

4002,

causing

the

starter

m

otor

to

turn.

When

the

a

larm

has

been

switched

of

f

and

the

door

has

opened,

the

s

tart

interrupter

will

be

deactivated

for

60

seconds.

If

the

engine

is

not

started

w

ithin

this

time,

the

s

tart

interrupter

is

reactivated.

If

the

a

larm

is

switched

of

f

and

the

doors

a

re

not

opened,

the

s

tart

interrupter

remains

deactivated

for

9

minutes.

If

the

vehicle

has

a

n

A

S

T

ronic

g

earbox

If

the

v

ehicle

has

an

AS

T

ronic

gearbox,

relay

G185

is

also

fitted.

When

the

c

ontact

is

switched

on

and

the

gearbox

is

in

neutral,

relay

G

185

will

be

energised.

The

v

oltage

is

now

applied

to

the

coil

of

relay

of

G203

through

wire

4004,

contacts

30

-

8

7

of

relay

G

185,

wire

4186,

contacts

3

-

4

,

w

ire

4009.

This

relay

is

energised.

A

v

oltage

is

now

applied

to

c

onnection

point

50

of

the

starter

m

otor

,

through

E037,

wire

1

100,

contacts

30

-

8

7

and

wire

4002,

causing

the

starter

m

otor

to

turn.

As

soon

as

the

m

otor

turns,

the

V

IC

applies

a

voltage

to

connection

point

C42.

The

v

oltage

is

then

applied

to

c

onnection

point

1

o

f

relay

G372

via

w

ire

3157.

This

relay

is

energised,

breaking

the

starting

circuit.

Note:

When

the

immobiliser

applies

a

voltage

to

wire

4009,

the

c

ab

heater

is

also

switched

of

f

if

the

v

ehicle

m

ust

m

eet

requirements

for

the

transportation

of

hazardous

substances.

CHARGING

C

IRCUIT

If

the

c

ontact

is

a

ctivated,

there

is

v

oltage

on

connection

point

85

of

relay

G

426.

This

relay

is

activated.

V

o

ltage

is

now

applied

to

connection

point

15

of

the

a

lternator

through

fuse

E037,

contacts

30

-

8

7

o

f

relay

G426,

fuse

E350

and

wire

1380.

An

internal

resistor

in

the

a

lternator

is

energised

b

y

a

n

IC

in

the

carbon

brush

holder

.

This

resistor

ensures

that

a

low

level

o

f

current

passes

through

the

energising

resistor

.

This

excites

a

magnetic

field

in

the

alternator

.

After

s

tarting,

the

v

oltage

on

terminals

B

+

and

15

will

rise

to

about

28.5

V

.

O

nce

this

v

oltage

is

reached,

the

IC

in

the

regulator

interrupts

the

pre-exciter

c

oil

to

enable

the

voltage

to

be

regulated.

The

m

agnetic

field

w

ill

now

disappear

,

s

o

that

the

generator

will

not

be

energised

for

a

s

hort

period

o

f

time.

As

a

result,

the

v

oltage

on

outputs

B

+

and

15

will

drop.

200332

ᓻ

2-32

5

CHANGES IN THE ELECTRICAL SYSTEM

Changes in the electrical system from chassis number 0E570448

CF65/75/85 series

11

The

regulator

reactivates

w

hen

the

v

oltage

drops

below

27.6V

.

T

his

m

eans

that

the

voltage

supplied

b

y

the

generator

remains

relatively

constant.

T

he

batteries

are

s

upplied

through

the

B

+

generator

output.

The

a

lternator

charging

current

warning

lamp

is

activated

v

ia

wire

1020,

which

is

c

onnected

to

the

V

IC

(D900).

T

he

VIC

c

ontrols

the

D

IP

via

the

CAN

network.

T

he

voltage

on

wire

1020

is

switched

by

the

c

ontrol

IC.

The

a

lternator

is

also

equipped

with

a

‘sens

’line.

This

connection

continuously

measures

the

v

oltage

on

connection

point

30

of

the

s

tarter

motor

.

If

the

v

oltage

on

connection

point

30

drops,

the

voltage

is

immediately

c

orrected

by

the

c

ontrol

IC.

The

alternator

will

increase

the

voltage

until

a

value

o

f

28.5V

is

reached

again.

V

ARIANTS

Location

42

If

no

alarm

system

is

fitted,

wires

4004

and

4004A

are

c

onnected

through

in

connector

603.

200332

ᓻ

2-33

Changes in the electrical system from chassis number 0E570448

5

CHANGES IN THE ELECTRICAL SYSTEM

CF65/75/85 series

11

2

1358030/16-24

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1

1

1

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1

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1

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1

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1

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1

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1

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0

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1008

1010

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1008

1008

3084

4002

4001

4004

1020

1020

1130

1100

1100

1100

1100

1008

1000

4002

1008

1008

3084

1380

1000

1000

1000

1380

1108

1130

1234

1234

4004

1380

1380

3157

4009

3157

1020

3157

1100

4002

4009

4004

4690

1010

4186

1363

1211

4690

4690

4004

4004

4001

4001

4001

9050

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9050

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A500

G014

1

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50

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M

31

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G

3

B

B+

L /2

15 /3

S /4

A513

10

575

20

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6/403

7/403

10/403

8/403

15/402

3/403

19/403

21/403

14/400

16/400

15/400

4/403

G525

E286

125A

2

1

E279

5A

12

C539

1/222

2/222

4/222

6/222

12/403

87

86

85

87A

30

G185

A3/

603

A1/

603

D911

C42/

594

D900

D29/

595

14

574

1

577

7

575

B365

A7

36

D895

A4

36

1/403

16/401

12/400

!

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!

2

869

6

390

16

574

E599

2

1

30

87

86

85

G015

DVB

87

30

86

85

G203

D929

1010

1000

E037

15A

1000

1010

4001

1100

1234

E350

10A

30

86

85

87A

8

7

G426

3

2

1

45

G377

1130

1108

3

2

1

45

G372

E035

10A

4186

3157

200332

ᓻ

2-34

5

CHANGES IN THE ELECTRICAL SYSTEM

Changes in the electrical system from chassis number 0E570448

CF65/75/85 series