DSE Model 5520 Automatic Mains Failure Control and Instrumentation System Operators Manual
5520 OPERATING MANUAL ISSUE 1 04/02/05 AM
52
5.4.7 VOLVO TAD12
PLUG
“A”
8
WAY
55xx
PIN
No
55xx
DESCRIPTION
Vol
vo
TAD12
‘
St
and
al
one
connect
or
’
t
er
mi
nal
NOTES
4
Fuel relay
output
H
TAD12 STOP input.
5
Start relay
output
E
TAD12 START input.
6
Aux output 1
P
Using 5xxx select the relevant
engi
ne
and
conf
i
gur
e
55xx
‘
aux
out
put
1’
t
o
be
“Enabl
e
ECU”
NOTE:- Alternatively, TAD12 terminal P can be connected to the contacts of a
slave relay, driven by the FUEL output of the 55xx (terminal 4). This must be a
separate relay and cannot be simply connected to TAD12 terminal H.
PLUG
“C”
9
WAY
55xx
PIN
No
55xx
DESCRIPTION
Vol
vo
TAD12
‘
Dat
a
bus
connect
or
’
t
er
mi
nal
NOTES
23
CANbus
common
-
Screen for the J1939 cable.
Connect at 55xx end only.
24
CANbus H
1 (Hi)
J1939 + Use only screened 120
impedance cable approved
specifically for use in CANbus
applications.
25
CANbus L
2 (Lo)
J1939 - Use only screened 120
impedance cable approved
specifically for use in CANbus
applications.
NOTE:- Should the TAD12 ECU detect an engine fault not monitored by the 55xx,
an
‘
ext
ernal
reset
’
must
be
provi
ded
t
o
reset
t
he
ECU.
Volvo specify that the reset is performed using external pushbuttons to give an input
to TAD12 Standalone connector terminal J (diagnostics), P (power) and H(stop).
According to Volvo, the reset sequence is :
Press and hold down the diagnostic button (terminal J) and apply power to H (stop)
Appl
y
power
t
o
P
(
but
don’
t
st
art
t
he
engi
ne)
.
Hold these inputs for three seconds.
Release the diagnostic button (terminal J).
Remove power from H (stop).
Remove power from P (power).