DSE Model 5520 Automatic Mains Failure Control and Instrumentation System Operators Manual
5520 OPERATING MANUAL ISSUE 1 04/02/05 AM
55
8 FAULT FINDING
SYMPTOM
POSSIBLE REMEDY
Unit is inoperative
Check the battery and wiring to the unit. Check the DC
supply. Check the DC fuse.
Unit shuts down
Check DC supply voltage is not above 35 Volts or below 9
Volts
Check the operating temperature is not above 55 °C.
Check the DC fuse.
Unit locks out on Emergency Stop
If an Emergency Stop Switch is not fitted, ensure that a
positive is connected to the Emergency Stop input. Check
emergency stop switch is functioning correctly. Check
Wiring is not open circuit.
Intermittent Magnetic Pick-up sensor
fault
Ensure that Magnetic pick-up screen is only connected at
one end, if connected at both ends this enables the screen
to act as an aerial and will pick up random voltages.
Low oil Pressure fault operates after
engine has fired
Check engine oil pressure. Check oil pressure
switch/sender and wiring. Check configured polarity (if
applicable) is correct (i.e. Normally Open or Normally
Closed) or that sender is compatible with the 5520
Module.
High engine temperature fault
operates after engine has fired.
Check engine temperature. Check switch/sender and
wiring. Check configured polarity (if applicable) is correct
(i.e. Normally Open or Normally Closed) or that sender is
compatible with the 5520 Module.
Shutdown fault operates
Check relevant switch and wiring of fault indicated on LCD
display. Check configuration of input.
Warning fault operates
Check relevant switch and wiring of fault indicated on LCD
display. Check configuration of input.
Fail to Start is activated after pre-set
number of attempts to start
Check wiring of fuel solenoid. Check fuel. Check battery
supply. Check battery supply is present on the Fuel output
of the module. Check the speed sensing signal is present
on the 5520 inputs. Refer to engine manual.
Continuous starting of generator
when in
AUTO
Check
t
hat
t
her
e
i
s
no
si
gnal
pr
esent
on
t
he
“
Remot
e
St
ar
t
”
i
nput
.
Check
conf
i
gur
ed
pol
ar
i
t
y
i
s
cor
r
ect
.
Generator fails to start on receipt of
Remote Start signal or under mains
failure conditions.
Check Start Delay timer has timed out. If remote start
f
aul
t
,
check
si
gnal
i
s
on
“
Remot
e
St
ar
t
”
i
nput
.
Conf
i
r
m
i
nput
i
s
conf
i
gur
ed
t
o
be
used
as
“
Remot
e
St
ar
t
”
.
Pre-heat inoperative
Check wiring to engine heater plugs. Check battery supply.
Check battery supply is present on the Pre-heat output of
module. Check pre-heat has been selected in your
configuration.
Starter motor inoperative
Check wiring to starter solenoid. Check battery supply.
Check battery supply is present on the Starter output of
module. Ensure that the Emergency Stop input is at +Ve.
Engine runs but generator will not
take load
Check Warm up timer has timed out. Ensure generator
load inhibit signal is not present on the module inputs.
NOTE:- The above fault finding is provided as a guide check-list only. As it is
possible for the module to be configured to provide a wide range of different features
always refer to the source of your module configuration if in doubt.