DSE Model 5520 Automatic Mains Failure Control and Instrumentation System Operators Manual
5520 OPERATING MANUAL ISSUE 1 04/02/05 AM
22
CAN ECU FAIL,
If the module is configured for
J1939 instruments
and
r
ecei
ves
a
“
f
ai
l
”
message
f
r
om
t
he
engi
ne
cont
r
ol
uni
t
,
t
he
engi
ne
i
s
shut
down
and
‘
Can
ECU
f
ai
l
”
i
s
shown
on
t
he
modul
e’
s
di
spl
ay.
Example
Alarm
Alarm
Can ECU fail
Fuel pressure low
The display will alternate
between the text display and the
manufacturers error codes
Can ECU fail
SPNnnnnnnn
FMInnnnnnn
NOTE:- If the CAN message is a manufacturers specific code, it may not
be displayed as text. If this is the case the display will show the generic
manufacturers code only, which must be cross-referenced with the engine
manufacturers literature. Please contact the engine manufacturer for further
assistance.
Example
Alarm
Can ECU fail
SPNnnnnn
FMInnnn
GENERATOR EARTH FAULT,
if the module detects a generator earth fault current in excess of
t
he
pr
e-
set
t
r
i
p
a
shut
down
i
s
i
ni
t
i
at
ed.
The
LCD
wi
l
l
i
ndi
cat
e
‘
EARTH
FAULT’
. This alarm is
conf
i
gur
abl
e
bet
ween
War
ni
ng,
Shut
down
and
El
ect
r
i
cal
Tr
i
p.
“
Shut
down”
i
s
t
he
f
act
or
y
def
aul
t
setting.
Alarm
Shutdown
Earth Fault
GENERATOR HIGH CURRENT,
if the module detects a generator output current in excess of the
pre-set trip a warning is initiated. This warning will continue for a period of time depending upon
the level of overload that the generator is subjected to and the configuration setting for Generator
High Current in the 5xxx series configuration software.
Alarm
Shutdown
High current trip
For instance the factory default settings for Generator High Current allow for a loading of the
generator to 110% for one hour. That is to say if the generator load level exceeds the trip point by
10%, a warning alarm will occur while the overload condition exists. If the load level does not drop
to normal levels within one hour, the set is stopped, the 5520 module displaying either shutdown
alarm or electrical trip alarm depending upon module configuration.
NOTE:- Higher overload levels will result in a faster acting shutdown condition.
For instance with the factory default configuration, an overload level twice that of the
trip level ( typically 200%) will result in a Generator High Current shutdown condition
after 36 seconds.
For details of the relationship between the overload and the shutdown time, please
see the Appendix section of this manual.