5.2 Digital Inputs
There are six digital inputs and each one of them can be assigned to perform a task as indicated
in the list below:
Assignable
Functions
Descriptions
RWL
Radiator Water Level switch to trigger a fault in case of low coolant
Oil Level
Oil Level switch to shut down the engine on low oil level
Earth Fault
External switch input for earth fault protection
Canopy
Temperature
External switch input for high Canopy temperature protection
Emergency
Emergency Stop signal
Fixed Outputs
• Crank
• Fuel Solenoid (configurable as pull to start or pull to stop)
• Mains Contactor
• Generator Contactor
• Hooter
HET/HWT
High engine/coolant temperature switch. Though the unit has provision for a
temperature sensor. This input could be used to provide additional protection.
Fuel
Low fuel level switch. Additional protection along with the fuel sensor
LLOP: Low Lube
Oil Pressure
Low LLOP switch. Additional protection along with Pressure sensor
R. Start/Stop
If assigned this function to a digital input the input could be used to start/stop
the genset in manual mode.
Connection to ground:
Start the Engine
Open:
Stop the Engine
Note:
Front Start/stop keys shall not work with this assignment.
R. Stop
Remote stop: If assigned this function to a digital input, the Digital input shall,
in manual mode, stop the engine, when connected to ground. This could just
be pulse of around 100ms
R. Start
Remote start: If assigned this function to a digital input, the Digital input shall,
in manual mode, start the engine, when connected to ground. This could just
be pulse of around 100ms
Auto/Manual
If assigned this function to a digital input, the input will select the mode of
operation.
Connection to Ground:
Auto Mode
Open:
Manual Mode
The front key can’t be used to select Auto or Manual mode but the test mode
can still be selected form front.
