DSE Model 521 Remote Start Engine Management System - Operators Manual
DSE 521 ISSUE 4 4/4/02 MR 15
SYMPTOM POSSIBLE REMEDY
Unit is inoperative
Select
AUTO on the front panel. 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 8
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 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 and
wiring. Check configured polarity is correct.
High engine temperature fault
operates after engine has fired.
Check engine temperature. Check switch and wiring.
Check configuration of input i.e. Normally Open or
Normally Closed.
Shutdown fault operates Check relevant switch and wiring of illuminated fault LED.
Check configuration of input. If only common alarm LED
illuminated, please refer to section 2, note 2.
Warning fault operates Check relevant switch and wiring of illuminated fault LED.
Check configuration of input. If only common alarm LED
illuminated, please refer to section 2, note 2.
Fail to Start is activated after pre-set
number of multi 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
521 inputs. Refer to engine manual.
Continuous starting of generator
when in
AUTO
Check that there is no signal present on the Remote Start
input. Check configured polarity is correct.
Generator fails to start on receipt of
Remote Start signal
Check Start Delay timer has timed out. Check signal is on
Remote Start input.
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 the
configuration menu.
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. Check configuration
to ensure output has been selected to give Load Transfer.
NOTE:- Fault finding can be assisted greatly by utilising the Diagnostic feature
available from the PC Interface. This will display the module state, any alarm conditions
present and the state of all inputs and outputs. It is recommended that diagnostics are
used to aid fault finding where-ever possible.
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