10.14
10.14
Electrical
Electrical system
system
A
AT
TL
LE
ET
T
S
SE
ER
RV
VIIC
CE
E
M
MA
AN
NU
UA
AL
L
C
Ch
haassssiiss
New error code
New error code
If the truck stops and E54 shows up in the display, this is because of an open circuit
If the truck stops and E54 shows up in the display, this is because of an open circuit
or short circuit in one of
or short circuit in one of the brake circuits or one of the brake coils
the brake circuits or one of the brake coils or due to a
or due to a
broken transducer, loss of transducer signal or
broken transducer, loss of transducer signal or transducer supply. E54 is always
transducer supply. E54 is always
logged together with a four level sub information string giving a numerical value.
logged together with a four level sub information string giving a numerical value.
*
*
Any value
Any value can be
can be calculated to
calculated to a voltage
a voltage value from
value from the following
the following formula: value/
formula: value/
1023 x 5.
1023 x 5.
Example:
Example: Value = 914, read vol
Value = 914, read voltage is 914/1023 x 5 = 4,48V. This mea
tage is 914/1023 x 5 = 4,48V. This means that
ns that
values out of range are approximately below 409 or above 818.
values out of range are approximately below 409 or above 818.
If the brake pedal is stamped hard, so the "Total brake switch" S4 is engaged, there
If the brake pedal is stamped hard, so the "Total brake switch" S4 is engaged, there
is a possibility that error code E54 occurs in the display. The reason for this is that
is a possibility that error code E54 occurs in the display. The reason for this is that
the ATC cannot sample fast enough. This kind of E54 error is always logged
the ATC cannot sample fast enough. This kind of E54 error is always logged
together with the sub information 10,
together with the sub information 10, 0 and two low
0 and two low voltage values around 570. This
voltage values around 570. This
error will disappear from the display and be reset with
error will disappear from the display and be reset with OFF/ON from the keypad.
OFF/ON from the keypad.
The error will remain in
The error will remain in the logbook but be overwritten if this error occurs again.
the logbook but be overwritten if this error occurs again.
E54
E54
S
Su
ub
biin
nffo
o
V
Va
allu
uee
D
Deessccrriip
pttiio
on
n
N
No
ottee
L
Liin
ne
e 1
1
1
10
0 o
or
r 1
11
1
10
10
=Drive motor brake or
=Drive motor brake or
transducer
transducer
11
11
=Wheel lock or transducer
=Wheel lock or transducer
Line
Line 2
2
0,
0, 1
1 or
or 5
5
0
0
= Brake current expected but
= Brake current expected but
no brake current read.
no brake current read.
1
1
= No brake current expected
= No brake current expected
but brake current read.
but brake current read.
5
5
= Transducer signal out of
= Transducer signal out of
range
range
< 2 volt or >5volt.
< 2 volt or >5volt.
If
If
5
5
, check transducer, supply
, check transducer, supply
(5.0 V) and signal wires.
(5.0 V) and signal wires.
Truck will still work normaly and
Truck will still work normaly and
drive is permitted but fault should
drive is permitted but fault should
be repaired
be repaired for
for correct current
correct current
monitoring
monitoring
Line 3
Line 3
*
*
Brake current value when the
Brake current value when the
error was logged
error was logged
Line 4
Line 4
*
*
V
Val
alu
ue f
e fo
or n
r no b
o brraak
ke cu
e curr
rren
entt
A n
A nor
orma
mal v
l val
alu
ue i
e is a
s arro
oun
und 5
d 51
12 -
2 - 5
580
80
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