Processor Architecture (Four Dedicated Microprocessors)

LAN Control Processor (LCP)

Supports up to five internal bus systems.

Handles LAN communications, network management, and industrial communication protocol processing.

Driver Control Processor (DCP)

Performs analog and digital I/O conversion.

Processes peripheral inputs including encoders, timers, and auxiliary signals.

Motor Control Processor (MCP)

Executes high-speed digital I/O processing.

Implements closed-loop control algorithms for motor speed, torque, excitation, and related parameters.

Collaborative Motor Processor (CMP)

Shares complex computational tasks with the MCP.

Improves overall control loop response time and system performance.

Key Interfaces and Operating Features

Communication Interfaces

Supports Ethernet LAN, RS-232, and RS-485 communications.

Compatible with industrial protocols such as Modbus TCP.

Human–Machine Interface (HMI)

Equipped with an alphanumeric programming keyboard for parameter setup, diagnostics, and fault analysis.

Reset and Protection Mechanisms

Multiple reset methods supported:

Onboard physical RESET pushbutton

External 5–24 VDC reset input

Software-initiated reset

Hardware watchdog supervision for fault protection

Program and Data Storage

Six Flash PROM devices (U7–U21) store application firmware and customer configuration data.

Supports on-site reprogramming and configuration updates.

Physical Characteristics and Power Requirements

Dimensions

Conforms to standard GE Mark V card form factor.

Approximate size: 125 mm × 115 mm × 45 mm, compatible with Mark V rack card slots.

Weight

Approximately 1.2–1.3 kg.

Power Supply and Environment

Nominal supply: 24 VDC (select configurations support 90–125 VDC input).

Operating temperature range: –40 °C to +70 °C.

Core Functions and Typical Applications

Drive and Motor Control

Provides high-precision closed-loop control of motor speed, torque, and excitation.

Suitable for a wide range of turbine drive operating conditions.

LAN-Based System Integration

Communicates with host computers, PLCs, and supervisory systems via LAN.

Supports real-time data exchange, monitoring, and remote diagnostics.

I/O Processing and Field Interface

Manages analog and digital I/O for reliable interfacing with field sensors and actuators.

Ensures accurate signal acquisition, processing, and output control.

Diagnostics and Fault Recovery

Dual-layer hardware and software reset architecture with built-in watchdog.

Rapid fault identification via keyboard input and LED status indicators.

Typical Applications

Direct-O-MATIC 2000 series drives and exciters.

Widely used in gas, steam, and wind turbine drive control systems.