DAF CF65, CF75, CF85 Series . Manual - part 675
5
CF65/75/85 series
Description of components
COMPONENTS
2-9
Connection 15
When the ignition has been turned on (contact
made), power is supplied to the alternator via
connection 15 (1010). The controller uses this
power to activate pre-excitation
(self-energising). If there is an open circuit in this
connection, the alternator will not produce any
power until it reaches a speed of about 5000
rpm. This corresponds to an engine speed of
around 1500 rpm. The alternator will energise
itself when it reaches this speed.
Sens connection
The sens connection can be used to
compensate for voltage losses in B+. There are
voltage differences between the alternator and
the battery. Voltage regulation can be improved
if these voltage variations can be controlled. The
sens connection is connected to terminal 30 on
the starter motor.
L connection
The L connection is connected to the VIC
electronic unit.
This connection is used to activate a fault
message in the master display via the VIC, if
necessary.
L voltage high: no fault
L voltage low: fault
The following faults can be detected via the “L”
connection:
-
Voltage too low (
< 16V)
-
Open circuit in connection 15 (1010)
-
Open circuit in “S” connection
-
Open circuit in “L” connection
These faults are indicated by the yellow
“Alternator fault” warning.
Too high a voltage (red warning) can be
recognised by too high a voltage (
>31 V) on the
VIC electronic unit.
E501129
L
15
S
2
0202