Display Operation; When The Engine Is Running; Load Transfer And Contactor Operation - KIRLOSKAR DV Series O & M Manual

• "Run On" follows "Running" and is a provided as an adjustable delay to reduce nuisance stopping.
The Contactor A & B Outputs remain activated and the Display shows "Run On" with a countdown
value.value. If the autostart input is re-activated during "Run On" the unit returns to normal "Running"
until the Autostart input is deactivated.
• "Cool Down" follows "Run On" and allows the engine and/or generator to cool down before stopping.
The cool time is adjustable. At the start of "Cool Down" the Contactor A & B Outputs are deactivated,
transferring the load to the mains. The display shows "Cool Down" with a countdown. If the autostart
input is re-activated during "Run On" the unit returns to normal "Running" and Contactor A and B are
activated.
• "Idle down" follows "Cool Down". The engine runs at idle speed for the idle down time. If the autostart
input re-activated during Idle Down, then the unit returns to the Warm Up state and continues its
starting sequence from there in the normal manner.
Pressing the Stop button in auto mode stops the engine immediately, deactivates the Contactor A &
B Outputs, and changes the mode of the unit to Manual.

4.11.5 Display Operation

When the engine is running

When the engine is starting and stopping, the display shows the state of the engine sequence together
with the time before the next state will commence.
Once the engine is fully running or if the engine is stopped and in "Ready", the engine parameters are
displayed. The unit sequentially scrolls through each screen in sequence.
Display screens are as follows:
Hertz (If enabled)
Oil Press
Canopy Temp (if enabled)
Engine Hours
Remote/Auto/Manual/Sched
Analog User Text
If warnings are present, the associated messages are included in the scroll list, and are interleaved with
each status display.
A typical Warning display is as follows:
Warning
Excitation Fail

4.11.6 Load Transfer and Contactor Operation

Contactor control will always occur in Auto mode, or in Manual mode if Man Mode Con is set to Yes.
Once the engine is warmed up and running, the unit will attempt to transfer the load to the generator.
In the Delay mode, the A contactor will unload when the delay time expires or when the engine is running,
which ever occurs first. In Immediate mode, the A contactor will unload immediately.
The B Contactor is loaded after a short delay "Xfr Delay" once the A contactor is unloaded and the engine
is in "Running" mode.
At the beginning of "Cool Down", the B Contactor is unloaded and the A contactor is loaded after a short
delay "Xfr Delay".
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Engine Temp
(if enabled)
RPM
Battery Volts
Fuel level
Crank Min Volts (Vm)
Running
xxxx