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Figure 8: SMD for manual mode
Low Idle Mode (LIM)
4.2.1
The intent of this mode is to run the genset at lower than normal speed when the genset is not
connected to external loads. This will reduce overall noise.
While operating in this mode, the controller will only take defined actions on critical faults (Over voltage,
Over frequency, Over current, Over temperature, LOP) and will ignore non-critical faults.
Engine
Starts in
LIM
Genset healthy condition is as follows:
Voltage and frequency of genset above minimum threshold
GCU will enter in LIM at first start command.
Second start command will exit LIM and will run in Normal Mode
Engine
cooling
down in
Engine
enters in
Normal
Mode
Stop input from
key = 1
or Electric tri
Engine Off
Engine On
* Genset healthy conditions = 1
and Time >= Warm up Time
Start command from key pad = 1 and (No
Warning / Electrical Trip / Shutdown Present)
En
ine On Time > Warm U
Time
Start command from key pad = 1
And No Warning / Electrical Trip / Shutdown present = 1
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