DAF 95XF C.W.S.-2

7. C.W.S.-2

CWS is the abbreviation for Central Warning
System.
The system consists of an electronic unit (D853)
and a digital display. The display is used to
display error warnings using symbols.
The CWS is connected using two (2) black
connectors.
Connector 395 (21-pin) and connector 396 (15
pin).
Red warning symbol
Function Connector + contact Wire number
air system storage pressure too low 395/9 3426
steering circuit 395/8 3518
engine oil pressure too low 395/10 3014
coolant temperature too high 396/2 3012
coolant level too low 396/3 3036
alternator charging current too high
(> 30 0.5 V)
396/6 1020
alternator charging current too low
(> 20 0.5 V)
396/6 1020
cab not locked 395/11 3492
engine management 395/14 3435
Orange warning symbol
coolant level 395/5 3022
retarder malfunction 395/12 3417
truck ABS malfunction 395/6 3427
engine management malfunction 395/14 3435
trailer ABS malfunction 395/7 3428
ECAS malfunction 395/20 3431
blocked air filter 395/3 3017
fuel level (too) low 395/2 3413
AGS malfunction 395/4 3469
HGS fluid level (delayed switch) 395/19 3474
ASC


CONNECTOR POINTS CWS-2 UNIT
CONNECTOR 395
Pin
No.
Designation Wire
number
1 Interconnection to connector 396, pin 10. 3406
2 Input for alarm function “Fuel supply on reserve”. Activated if the fuel supply
meter reaches the red area. The instrument panel connects point A2 to earth.
3413
3 Input for alarm function “Fuel filter blocked”. Activated if pneumatic switch F016
closes and pin 1 is connected to earth. If the input is 0 V (earth), the light
concerned will light up.
3017
4 Input for alarm function “Lubricating system”. Activated in the case of a
malfunction. The AGS unit supplies a voltage to the CWS unit and will activate
the light on the CWS panel.
3469
5 Daily check.
If the input is connected to earth, the symbol will light up.
3022
6 Input for alarm function “ABS truck malfunction”. Activated if the truck ABS
system malfunctions. If the input is 0 V (earth), the light concerned will light up.
3427
7 Input for alarm function “ABS trailer malfunction”. If the input is 0 V (earth), the
light concerned will light up.
3428
8 Input for alarm function “Emergency circuit steering system” first (1st) circuit.
Activated if fluid passage switch F047 closes and pin 2 is connected to earth. If
the input is 0 V (earth), the light concerned will light up.
3518
9 Input for alarm function “Brake reservoir pressure”. Activated if the brake
reservoir pressure is too low (switch at reservoir pressure meter closed).
3426
10 Input for alarm function “Oil pressure”. Activated if pressure switch F011 closes
as a result of an insufficient oil pressure. If the input is 0 V (earth), the light
concerned will light up.
3014
11 Input for alarm function “Cab lock”.
Activated if switch F009 is closed.
If the input is 0 V (earth), the light concerned will light up.
3492
12 Input for alarm function “Retarder”. 3417
14 Input for alarm function “Engine management”.
Orange symbol: less serious malfunction.
Red symbol: serious malfunction.
3435
17 Input ABS/ASC (D586).
This lamp: blinks a few times when switching on the contact if the ABS/ASC
traction switch (C737) is activated and lights up continuously if a malfunction
occurs in this control.
3471
19 Input for alarm function “Fluid level HGS”. Activated if switch F076 closes
because the level is too low. If the input is 0 V (earth), the light concerned will
light up after eight (8) seconds.
3474
20 Input for alarm function “ECAS defective”. 3431


CONNECTOR 396
Pin
No.
Designation Wire
number
1 Activation switch “I”, more warnings. 3490
2 Input for alarm function “Coolant temperature too high”.
The signal on this input originates from the instrument panel DIP 2 (D816). If
the input is 0 V (earth), the light concerned will light up.
3012
3 Coolant level too low. If the level is too low, the switch closes and the symbol
lights up.
3036
5 Door on driver’s side open/closed. 2600
6 Input D+ for alarm functions “Generator voltage too high/too low”.
Generator voltage too low:
If D+ is < 21 1V, the alarm function is activated. Generator voltage too high:
If D+ is > 30 1V, the alarm function is activated. The input receives its analog
signal from D+ from the generator.
1020
9 Output central warning lamp (D004) red.
The CWS unit will activate the lamp if a malfunction has been detected which
must be repaired as soon as possible. The only exception to this rule is the
malfunction signal: alternator voltage too low.
If the input is 0 V (earth), the red light on the CWS panel will light up.
3403
10 Interconnection to connector 395, pin 1. 3406
12 Connection for control lighting. 2630
13 Earth connection. M
14 Supply connection behind contact. 1211
15 Supply connection in front of contact. 1101

Оглавление...