engine control unit (ecu)
1
ECU Series 800 Controller
Engine Started 
Shutdown 
A
Alarm | Screen | Option | Program | |
Acknowledge Change | Exit | |||
| ||||
E F G H
B
C
D
25 | 50 | 75 |
| 140 | 180 | 220 |
| 12 | 18 | 24 |
0 | PSI |
| 100 | 100 | °F | 260 | 6 |
| VOLTS | 30 |
OIL PRESS |
| WATER TEMP |
|
| BATTERY | |||||
½120 150 180
60
E | °F | 0 | RPMX10 |
F | 210 | ||
| FUEL |
| SPEED |
ECU Series 800 Controller
Engine Started 
Shutdown 
Alarm | Screen | Option | Program |
Acknowledge Change | Exit | ||
INCREASEDECREASE
V
UW
OFF
OFF
Figure 4. Engine Control Unit (ECU)
The definitions below describe the controls and functions of the Engine Control Unit (Figure 4).
1.ECU Controller — This auto start/stop controller displays the parameters and the diagnostic troubleshooting messages of the engine, and controls DPF regeneration.
A.ECU Display Screen — Engine fault diagnostic messages are shown on this LCD display. screen
B.Engine Started Lamp — This lamp when lit indicates engine is operating normally.
C.Engine Shutdown Lamp — When an engine failure has occured this lamp will blink. Indicating the engine has been shutdown. The diagnostic fault message will be displayed on the LCD screen.
D.Pre Alarm Lamp — When an engine failure has occured this lamp will blink. Indicating a
E.Alarm Acknowledge Button — When the engine experiences a fault, the "Pre Alarm Lamp" or the "Shutdown Lamp" will start blinking. Pushing this button will confirm the fault message and the blinking lamp will change to a solid lamp display. The fault message will be displayed on the screen. When multiple engine faults occur, the lamp will continue blnking until all fault messages are confirmed.The blinking lamp will change to a solid lamp display all current confirmed fault messages will scrool across the screen.
F.Screen Change Button — When this button is pushed during operation, the screen will cycle through each parameter screen.
G.Option Button — This button is not active. Do not use.
H.Program/Exit Button — Pushing this button allows the DPF Force Regen and diagnostic code to be confirmed.
page 18 — dca220sscu/4i 60 hz generator • operation and Parts manual — rev. #0 (10/25/12)
