DAF CF65, CF75, CF85 Series . Manual - part 820

11

1358030/25

EL001097

1

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100

1

01

102

103

104

105

106

1000

1008

1008

9001

9307

9307

9307

1010

1000

1000

1010

1000

A500

1/416

1/417

E286

125A

2

1

!

1

638

20

555

30

87

G015

B525

A5/

598

D929

1010

1000

1000

1010

B010

30

2

C694

BD

+

G

200332

ᓻ

3-38

5

CHANGES IN THE ELECTRICAL SYSTEM

Changes in the electrical system from chassis number 0E608863

CF65/75/85 series

11

200332

ᓻ

3-39

Changes in the electrical system from chassis number 0E608863

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

activated.

A

v

oltage

is

now

applied

to

c

onnection

point

50

of

the

s

tarter

motor

,

through

E037,

wire

1

100,

contacts

30

-

8

7

and

wire

4002,

causing

the

starter

motor

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

3-40

5

CHANGES IN THE ELECTRICAL SYSTEM

Changes in the electrical system from chassis number 0E608863

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

44

If

no

alarm

system

is

fitted,

wires

4004

and

4004A

are

c

onnected

through

in

connector

574.

46

If

no

alarm

system

is

fitted,

wires

4004

and

4004A

are

c

onnected

through

in

connector

574.

52

Only

for

A

S

T

ronic.

200332

ᓻ

3-41

Changes in the electrical system from chassis number 0E608863

5

CHANGES IN THE ELECTRICAL SYSTEM

CF65/75/85 series