MQ Power WHISPERWATT DCA150SSJU4F2 Operation Manual page 68

PROTECTION DEVICES
Automatic Shutdown System
This unit is equipped with engine protection devices that
automatically shut down the engine if any of the faults
shown in Table 18 occur. The "Shutdown" LED on the
ECU Controller will turn on just before the shutdown and
will stay on after the shutdown. Messages will appear on
the ECU display.
After the automatic shutdown, check all Diagnostic Trouble
Codes (DTC) displayed on the ECU Controller. Reference
the Troubleshooting Diagnostics section in this manual.
Operating Parameter
Low Oil Pressure
High Water Temperature
Low Coolant Level
High Water Level In
Fuel Water Separator
High Engine Fuel Temperature
High Charged Air Cooler
Outlet Temperature
Exhaust System Severe
Malfunction
Over-Voltage
Under-Voltage
High Power (kW)
Over-Frequency (Hz)
Under-Frequency (Hz)
Over-Current
PAGE 68 — DCA150SSJU4F2/F3 60 HZ GENERATOR • OPERATION MANUAL — REV. #0 (02/16/22)
Table 18. Automatic Engine Shutdown System
ECU
Shutdown LED
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
Main CB Trip
Place the Auto Start/Stop Switch in the "Off/Reset" position.
In addition, place all circuit breakers in the OFF position.
Before troubleshooting, allow sufficient time for adequate
cooling. Before attempting to restart the generator, perform
overall inspection of the generator and correct the problem
that caused the shutdown. If necessary, contact your
nearest Multiquip dealer for additional technical support.
Restart the generator as referenced in the Generator
Start-Up Procedure (Manual Start).
NOTICE
Although the unit is equipped with engine protection
devices, regularly scheduled preventative
maintenance is strongly advised.
Operating Condition/Set Point
Set Point: 17 psi (117 kPa)
Set Point: 240°F (116°C)
Falls Below Specified Level
Water Level Has Exceeded Filter Capacity
Fuel Temperature Too High
Fuel Temperature Too High
Reference Exhaust System,
DEF, Regeneration Sections
Set Point: 110%
Set Point: 75%
Set Point: 115%
Set Point: 110%
Set Point: 90%
Load Capacity Exceeded
MAINTENANCE