DynaGen ES52 - 3. Operation; 3.1 ES52 Startup; Shutdown Behavior; 3.2 Zero Speed Restart Feature; 3.3 Front Panel LED INDICATIONS

Operating & Installation Manual for the ES52 Engine Controller
19
3. Operation
3.1 ES52 Startup / Shutdown Behavior
Note: The fuel output remains on during crank rest. There is no way to disable this.
3.2 Zero Speed Restart Feature
The ES52 has a starter protection feature where it will not turn on the crank output until the
engine speed is zero.
1. If speed is not zero before cranking, preheat (timer) will be performed but the ES52 will
pause until speed is 0Hz or will go into a failure (alternating over crank and over speed
LEDs flashing) after 30 to 40 seconds.
2. If speed is not zero during engine rest the ES52 will not crank until it is zero. It will sit in
engine rest for 30 to 40 seconds and then go into failure (alternating over crank and over
speed LEDs flashing).
3.3 Front Panel LED INDICATIONS
What the LED’s look like
Condition/Failure
No LED’s ON
“Ready” unit waiting for start signal,
+12/24 VDC to Auto terminal.
“OFF”, no +12/24 VDC to Auto terminal.
Low Oil, steady
Low Oil Pressure Failure
Low Oil, flashing
Auxiliary Input Failure
High Temperature, steady
Over-temperature Failure
Over-crank, steady
Engine would not start after specified
Crank tries.
Over-crank, flashing
Unit is in setup mode. Time between
flashes indicates crank and crank-rest time.
Over-Speed, steady
Speed Signal present above Over-Speed
setting
Over-speed, flashing
Was engine Cranking?
Was engine Running?
No speed signal available while cranking.
The speed signal was zero while running
for 3 seconds. The engine has stalled, or
the speed signal has been lost.
Engine Running, steady
Engine Controller is in running mode of
operation.
Engine Running, flashing
Crank-rest period. Cranking will resume
soon.