hitachi — OUTLINE

SYSTEM / Control System OUTLINE MC (Main Controller) is used to control the machine operations. The signals from engine control dial, vari- ous sensors and switches are sent to MC and proc- essed in the logic circuit. MC sends the signals equivalent to the target engine speed to ECM (Engine Control Module) by using CAM communication in order to control the engine. (Refer to ECM System / SYSTEM.) MC drives the so- lenoid valve unit and pump control solenoid valve in order to control the pump and valve.

Satellite Terminal (Optional) Engine Con- trol Dial Sensor Switch CAN Communication Monitor Unit Fan Pump Control Solenoid Valve Pump Con- trol Sole- noid Valve Solenoid Valve Unit T1J1-02-02-032 T2-2-1