Volvo Penta Diesel Engine Information

Volvo Penta Diesel Engine Information

Power down sequence

To perform a power down the following sequence shall be performed:

1 Switch off the ignition

2 Send a stop request to the system.

3 When the power down sequence is finished the engine will stop communicating. Auto shutdown will power down the system if the ignition is switched off. Different length of time sequences are being used. (Running engine will continue to run until a stop request is sent to the system).

External stop

External stop is placed in the 8-pole connector on pin 6.

Energized to STOP / RUN

Default external stop function is set to Energized to STOP. To use the stop function as Energized to STOP, apply EMS supply voltage on Pin 6 to stop the engine. By option or changing a parameter it can be set to Energized to RUN. To use the stop function as Energized to RUN, Pin 6 needs EMS supply voltage for the engine to start and run. To stop the engine EMS supply voltage needs to be removed from Pin 6.

Energized to RUN on Pin5

If the function “energized to run” is used the extra stop is on pin 5 together with the ignition.

The main power MUST NOT be switched off before the power down sequence is finished.

Stop

A stop request is addressed by the stop signal and will stop the engine.

Bus interface

Associated message:

J1939: Stop request in VP Status

J1587: Stop request in PPID 98

CIU

Associated hardware/input:

Stop request.

DCU

Associated hardware/input:

Stop request.

Throttle (Synchronizing/Load sharing)

Versatile

The driver pedal demand is realized by the throttle request signal. The signal is interpreted as a 0-100% request where 0% means idle speed and 100% maximal engine speed. This demand will only be overridden if an error occur that may damage the engine or a request with the CAN-message TSC1.

Genset

This is used for controlling the engine speed in order to synchronize and to perform load sharing. 50% throttle corresponds to 1500 or 1800 rpm.

Bus interface

Associated message:

J1939: Throttle in VP Status

J1587: PPID 132

CIU

Associated hardware/input:

Potentiometer supply, signal and ground.

DCU

Associated hardware/input:

Increase decrease engine speed buttons or potentiometer supply, signal and ground.

Governor mode

The engine is normally running in isochronal mode. If there is a need for a smoother controller this can be realized by an active droop mode signal. When the governor mode signal is active then droop functionality is added to the engine speed controller.

Bus interface