High pressure regulator for diesel injection
10 - 36 V, 10 A | EFS 8244
EFS
regulation of high pressure in the
"common rail" diesel
injection systems.
The device is driven by a PC
through a RS485 serial link.
It is powered by a 115Vac or
230Vac 50/60 Hz supply and by
an 10 to 36V DC supply (battery
simulator) for actuators
command.
HPR
SYSTEM COMPOSITION
The module shows up as a 3U 19" rack.
The system is composed of :
* A CPU board that processes the information and performs the numerical
adjustment of the pressure
* A pressure sensor conditioning board :
Input signals : 0-5V or 0-32mA
Sensor supply output : +5V or +12Vdc
The actuator command boards supply can be external (connector on the
back plane) or internal (optional supply board).
It is possible to load up to 4 actuator driving boards in the same rack.
These boards allow different types of pressure regulation :
* asynchronous regulation on the rail
* output regulation of the high pressure pump
* input regulation of the high pressure pump and low pressure output
* input regulation of the low pressure pump.
Each board can drive 2 actuators (allowing to drive up to 8 actuators with
4 boards).
TYPICAL USE
The HPR is connected to the supervisor through a RS485 (MODBUS) link.
The exchanged informations are :
* pressure value set point
* type of used actuator : type 1 to 32
* regulator fault status
* time of pressure measure command
* connected sensors parameters (linearity and full scale).
* instant pressure measurement.
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