Excavator Part PC300-8MO PC360-8MO Pump Controller 7835-45-5002 7835-45-5003

Central processing unit (CPU)​ – Executes control algorithms and logic.

Sensor signal acquisition​ – Collects data from all machine sensors.

Analog-to-digital conversion​ – Converts sensor analog signals to digital values.

Input signal conditioning​ – Filters and scales raw sensor inputs.

Controller Area Network (CAN) management​ – Manages high-speed data bus communication.

J1939 protocol implementation​ – Standardized communication for engine and components.

Hydraulic pump control​ – Calculates and outputs commands to pump regulators.

Engine ECU communication​ – Exchanges data with engine control unit for power management.

Load sensing system processing​ – Calculates hydraulic demand and optimizes pump flow.

Operator command interpretation​ – Processes joystick, pedal, and switch inputs.

Power mode logic​ – Implements Eco, Standard, and Power mode algorithms.

Work mode selection​ – Controls patterns like Digging, Lifting, etc.

Closed-loop control​ – Compares target and actual values (e.g., pressure, speed) for adjustment.

Fault detection and diagnosis (FDD)​ – Monitors system parameters for abnormalities.

Diagnostic Trouble Code (DTC) storage​ – Logs fault codes and freeze frame data.

Warning and alert generation​ – Activates visual/audible alarms for operators.

Data logging​ – Records operational data (hours, fuel, events) for analysis.

Immobilizer function​ – Interfaces with security systems to enable/disable machine.

Parameter customization​ – Allows authorized adjustment of machine settings.

Display driver​ – Generates graphics and data for the monitor screen.

Keypad/interface management​ – Processes inputs from the operator's control panel.

Attachment control logic​ – Manages optional hydraulic attachments.

Pump torque limiting​ – Prevents engine stall by limiting hydraulic power demand.

Engine speed governing​ – Sends desired RPM signals to the engine ECU.

Auto-idle function​ – Lowers engine speed when controls are neutral.

Grade assist logic (if equipped)​ – Calculates and maintains blade or boom angle.

Safety interlock processing​ – Enables functions only when conditions are safe (e.g., seat switch).

Software-based calibration​ – Stores calibration data for sensors and actuators.

Fail-safe strategy execution​ – Limits machine function to a safe state upon critical faults.

System integration hub​ – Acts as the primary coordinator for all electronic subsystems.