Description

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　　Other names for 8200-1302:

Input/Output Unit 8200-1302

8200-1302 Analog Unit

Communication Unit 8200-1302

　　Core Functions and Technical Characteristics

Speed ​​Regulation and Control Capabilities:

The 8200-1302 is a Woodward 505D series digital speed controller, designed specifically for industrial equipment such as steam turbines, compressors, and pumps. It integrates a graphical HMI interface, supports multi-language operation, and is suitable for single/dual actuator control scenarios.

As a digital governor for steam turbines/gas turbines, it supports automatic hot/cold start sequencing, three-stage critical speed avoidance, and dual-speed/load dynamic control, achieving precise speed and power regulation (e.g., 3.3kV/6.6kV motor speed control).

It integrates redundant speed inputs (supporting magnetic pickup, eddy current probes, or proximity probes), 8 analog inputs (configurable with 27 functions), and 20 contact inputs, adapting to various sensor and actuator signals.

Equipped with 4-20mA control outputs, 8 Form-C relay contacts, and a Modbus communication port, it supports remote monitoring and integration with DCS/PLC systems.

Control accuracy: Employing PID algorithms and adaptive tuning technology, it achieves a steady-state speed control accuracy of ±0.25%, supporting “droop” and “isochronous” modes to meet grid synchronization requirements.

Redundancy design: Dual-processor architecture and automatic fault transfer function ensure uninterrupted operation of critical processes; integrated diagnostic module supports predictive maintenance.

　　Interface and Protection Design:

An 8.4-inch LCD display with a multilingual HMI interface, supporting navigation directional pad, soft key commands, and LED status indicators (CPU running, IO locked, alarm/trip indication).

Compliant with ATEX, IP-54, and pollution level 3 standards, possessing EMC immunity (EN 61000-6-2), operating temperature range -30℃ to 70℃, suitable for harsh industrial environments (such as ships and oil platforms).

The marine model (8200-1302) additionally meets the IACS UR E10 standard and requires a grounded shielding layer to enhance interference immunity.

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　　Key Technical Parameters

　　Input/Output Configuration:

Analog Inputs: 8 configurable 4-20mA channels (with loop power supply), supporting 27 function configurations; 2 4-20mA control outputs.

Digital Inputs: 20 contact inputs (the first 4 are preset for stop/speed adjustment/reset/lower setpoint, the rest are customizable); 8 Form-C relay outputs.
Speed ​​Input: Dual redundancy design, compatible with magnetic pickups, eddy current probes, or proximity probes, with strong anti-interference capabilities.

Communication Capability: Supports Modbus protocol, seamlessly integrated into DCS/PLC systems; pre-loaded with common turbine model templates, reducing commissioning time.

　　Environmental Adaptability:

Protection Rating: IP54 (dustproof and waterproof), ATEX certified (explosion-proof), pollution level 3, suitable for hazardous environments (such as areas with explosive gases).

Temperature Range: Operating temperature -30°C to 70°C, storage temperature -30°C to 70°C, conforming to marine IACS UR E10 standard.

Power Supply and Display: LV 18-36 VDC isolated power supply; 8.4-inch LCD display with navigation cross keys, soft keys, and LED status indicators, supporting configuration/run/calibration three-mode operation.

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　　Application Scenarios and Industry Adaptation

　　Power and Energy:

Speed ​​control of boiler forced draft fans, induced draft fans, and circulating pumps to optimize energy consumption in power generation equipment; dynamic control of rolling mills and electric arc furnaces to ensure production continuity.

Applied to gas/steam turbines, generator sets, and distributed energy systems (such as solar/gas combined cycle).

　　Industry and Manufacturing:

High-load control of mining fans and belt conveyors; tension synchronization control of automotive production lines and food processing equipment.

Oil and gas valve monitoring and pump/valve actuation to ensure precise process operation; fluid control of chemical reactors and agitators.

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　　Infrastructure:

Traffic signal systems, energy efficiency optimization of building air conditioning/lighting; variable speed operation of fans/pumps in wastewater treatment plants.

　　Supporting Equipment and System Integration

　　Core Supporting Equipment:

Sensors: Magnetic pickup devices, eddy current probes, proximity probes, temperature sensors (with temperature input option).

Actuators: Hydraulic actuators, servo valves, split-range actuators (single/dual actuator control).

Communication Modules: Modbus, Ethernet, HDLC fieldbus, supports GPS time synchronization.

Power Supply Modules: LVDC (18-32V), AC/DC (88-132Vac/90-150Vdc), compatible with marine/ATEX compliant power supplies.

　　System Integration:

Seamlessly interface with ABB DCS (e.g., 800xA), PLC, S800 I/O systems, supports Control Builder M programming and MATLAB/Simulink model import.

Compatible with Honeywell Experion MasterLogic-200 PLC modules (e.g., 2MLF-DC8A, 2MLI-D22A).

　　Precautions and Safety Specifications:

　　Installation and Maintenance:

Strictly adhere to IEC 61010 electrical safety standards, using copper stranded wire (rated temperature ≥75°C), wiring conforms to North American Category I Zone 2 or European Zone 2 specifications.

Marine models require an additional shielding layer and grounding to the casing to prevent electromagnetic interference; in non-hazardous environments, ensure the ambient temperature is ≤50℃.

After disconnecting the power, wait at least 2 minutes before turning on the rectifier to prevent residual dangerous voltage; regularly clean contaminants (such as dust), cleaning at least once a year with dry compressed air (≤1 bar).

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　　Operation and Troubleshooting:

Operation should be performed by qualified personnel; non-qualified personnel are prohibited from adjusting parameters; configuration mode is limited to the original settings, while operating mode supports start/stop/protection logic.

When a backplane fault or communication interruption is detected, the output function is automatically disabled; data initialization via ladder logic is required.

SIL2 safety level is supported, with built-in self-diagnostics and status monitoring, quickly detecting faults and triggering alarms (such as light/sound alarms).

Summary: As a core component of the Woodward 505D series, the 8200-1302, with its high-precision speed control, system integration capabilities, and high-reliability design, is widely used in power, manufacturing, and oil and gas industries. Strict adherence to installation, maintenance, and safety regulations is required to ensure stable system operation and high efficiency.

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