Atlas Copco QAS 250-330 JD T4i, Instruction Manual, Page: 21 / 76

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Displaying the engine DM1 alarm
Besides some engine specific alarms shown in the
standard alarm list, also all Diagnostic messages DM1
(active alarms) can be shown on the display.
Use the
UP or DOWN buttons until DM1 is shown on the
display and press ENTER . The DM1 alarm log will be
shown on the display.
Use the
UP and DOWN buttons to scroll through the list.
The DM1 alarm log will always show the SPN code
(Diagnostics Codes) and the FMI code (Failure Modes) of
every engine failure.
For example, the error code for “Low Coolant Level
Shutdown” will be 111/01 (111 for “Coolant level” and 01
for “Low level shutdown”).
The list below shows the most common error codes. The
DM1 alarm log for these codes will also show the alarm
text:
LOG list
The unit will keep an event log of the latest 30 events.
Events are:
– shutdowns
– service timer 1/2 reset
– unit type changes
Together with each event, the running hours at the time of
the event will be stored.
SPN16 "FUEL FILTER DIFF P"
pressure difference over fuel filter
SPN51 "THROTTLE POS"
throttle position
SPN52 "INTERCOOL TEMP"
intercooler temperature
SPN94 "FUEL PRESS"
fuel pressure
SPN95 "FUEL FILTER DIFF P"
pressure difference over fuel filter
SPN97 "WATER IN FUEL"
water in fuel
SPN98 "OIL LEVEL"
oil level
SPN99 "OIL FILTER DIFF P"
pressure difference over oil filter
SPN100 "OIL PRESSURE"
oil pressure
SPN101 "CRANKCASE PRESS"
crankcase pressure
SPN102 "TURBO BOOST PRESS"
turbo boost pressure
SPN104 "TURBO OIL PRESS"
turbo oil pressure
SPN105 "INTAKE MANIF TEMP"
intake manifold temperature
SPN106 "AIR INLET PRESSURE"
air inlet pressure
SPN110 "COOLANT TEMP"
coolant temperature
SPN111 "COOLANT LEVEL"
coolant level
SPN158 "BATT VOLTAGE"
battery voltage
SPN171 "AMBIENT AIR TEMP"
ambient air temperature
SPN172 "AIR IN TEMP"
air in temperature
SPN174 "FUEL TEMP"
fuel temperature
SPN175 "OIL TEMP"
oil temperature
SPN190 "SPEED"
speed
FMI00 "HIGH LEVEL SHUTDOWN"
high level shutdown
FMI01 "LOW LEVEL SHUTDOWN"
low level shutdown
FMI15 "HIGH LEVEL WARNING"
high level warning
FMI16 "HIGH LEVEL ALARM"
high level alarm
FMI17 "LOW LEVEL WARNING"
low level warning
FMI18 "LOW LEVEL ALARM"
low level alarm
1 Controller type
2 Event number
3 Event
4 Running hours
Time: 00001h
EVENT LOG #04
Water
Qc1002
1
3
4
2