Processor and Storage Architecture

Equipped with three dedicated microprocessors responsible for drive logic execution, signal processing, and I/O management.

Supports parallel access to shared RAM, enabling coordinated multi-processor operation and high real-time performance.

Uses 4–5 EPROM/Flash memory devices (U7–U11) to store system configuration data and drive control programs.

During board replacement, the original memory devices must be transferred to the new board to retain site-specific parameters.

Incorporates a hardware watchdog circuit to monitor processor activity and automatically initiate a reset under abnormal operating conditions.

Interfaces and Connections

Provides multiple onboard connectors compatible with terminal boards, I/O expansion cards, and communication interfaces.

Supports transmission of analog (4–20 mA), digital, and servo valve drive signals, ensuring flexible integration with field devices.

Includes jumper configuration options (Berg-type or wired jumpers) for:

Factory testing

User-selectable functional adaptations, such as signal range settings and communication protocol selection.

Features LED status indicators for visual diagnostics of:

Power status

Processor operation

Communication activity

Physical Characteristics and Power Requirements

Form factor: Standard GE Mark V card size, fully compatible with system rack card slots.

Weight: Approximately 0.8–1.0 kg.

Power supply: 24 VDC nominal.

Operating temperature range: –40 °C to +70 °C, suitable for harsh industrial environments.

Core Functions and Typical Applications

Primary Drive Control

Implements closed-loop control of turbine speed, torque, and excitation.

Generates drive signals for servo valves and actuators within the turbine control loop.

Signal Conditioning and Processing

Conditions and processes 4–20 mA analog signals, digital inputs/outputs, and feedback signals such as LVDT and thermocouples.

Ensures high signal accuracy, stability, and immunity to electrical interference.

Configuration and System Adaptation

Stores customer-specific configuration parameters in EPROM/Flash memory.

Supports on-site reprogramming to accommodate different turbine types and operating conditions.

Diagnostics and Fault Detection

Built-in hardware and software diagnostic mechanisms.

Identifies faults related to processors, memory devices, or communication links using LED indicators and system alarm reporting.

Typical Applications

EX2000 series drive controllers, widely used in gas and steam turbine drive control systems.

Commonly operates with associated grid drive and I/O boards such as DS200GLAA, DS200LDCCH, and related modules.