Note: There are some restriction on the assignment of the function to the Digital Inputs
a)R
. Start/Stop can not be selected along with either of R.Stop or R.start
b)R
.Start and R.Stop both must be assigned. Assigning only one is not allowed.
6.0. Modes of Operation
Mode
Description
Auto
The genset runs without any human interventions.
The engine shall be switched on when the Mains becomes unhealthy as per the user
defined settings.
The mains can be monitored for voltage levels, frequency, phase sequence and
voltage unbalance. The monitoring of frequency, phase sequence and voltage
unbalance can be disabled.
Once the Mains voltage is outside the limit, continuously for the programmed time,
the engine is cranked and load transferred to the genset after warmup time. The
engine keeps running till the Mains is restored and upon its restoration, the load is
transferred to the Mains and engine is shut down after cooling. This cycle keeps
repeating.
On detection of unhealthy conditions(faults) the engine shall be shut down and an
alarm (Hooter) is activated for the programmed time.
Manual In this mode the starting and stopping of the genset is controlled manually. All other
functions like load transfer and protections are performed automatically
Starting the Engine: Depending upon the setting of the digital Input the engine could
be started by either:
•
Front Start Key
•
R. Start Key
•
R. Start/Stop Key
Stopping Engine: The engine can be shut down either automatically on restoration
of Mains Voltage (Auto shut down) if the setting xxxxxxxxx is enabled in xxxxxx
Parameter else it’s shuts down by user depending upon the digital Input setting
•
Front Stop Key
•
R. Stop Key
•
R. Start/Stop Key
Test
This is special mode meant for testing during building the system or trouble
shooting.
This mode allows the operator to manually start and stop the engine also the mains
contactor and generator contacts can be manually controlled from Front Keys
7.0. Analog Sensors in Details
Though three sensors one each for Temperature, Pressure and Fuel are installed but at times
systems have typical requirements. DGC202X is deigned to cater for all these possible
requirements and these can be programmed in System Configuration Settings:
