Woodward 505D (8200-1300/8200-1302/8200-1310) - The latest generation of digital turbine speed control controller 

505D rear terminals

1. Model distinction (three core order numbers of the 8200 series) Table

Model Power Supply Specifications Applicable Working Conditions Certification

8200-1300 Standard DC: 18-36VDC (24V is commonly used) General power plants / industrial steam turbines, single valve / extraction type, general standard version CE, Class1 Div2, SIL2

8200-1302 18-36VDC, marine + ATEX explosion-proof Offshore platforms, chemical explosion-proof areas, marine steam turbine units, IACS UR E10 classification certification ATEX, classification society, IP54

8200-1310 Wide AC/DC: 88-264VAC / 90-150VDC No 24V DC power supply on-site, local AC power supply renovation project General explosion-proof, industrial general use

Supplement: 8200-1301 = AC wide-voltage standard version (the same as 1310 power supply), belonging to 505D product line

 Hardware I/O Standard Configuration (unified for all series hardware)

1. Speed Measurement Input

6 MPU magnetic resistance speed probe inputs, compatible with passive speed sensors, support dual redundant speed measurement protection

2. Analog Input AI/4-20mA

16 4-20mA isolated analog inputs (with built-in loop power supply); 4 4-20mA analog AO outputs (connected to DCS, local instruments)

3. Valve Drive Output

2 Actuator drive outputs: 4-20mA / 0-200mA selectable, direct drive Woodward 9907-1200 electro-hydraulic converter, electro-hydraulic servo valve

4. Switching Input/Output DI/DO

24 Passive switch inputs (stop, interlock, local start-stop); 8 Passive relay outputs (alarm, trip, solenoid valve)

Core Hardware Parameters

Display: 8.4-inch color liquid crystal touch screen (800×600), multi-language (Chinese and English) localized operation interface, real-time curves, fault recall screens

Power Consumption: <73W; Net Weight ≈3.4kg; Cabinet-mounted installation (embedded on control cabinet panel)

Operating Environment: -30℃~+70℃, three-proof coating resistant to sulfur corrosion (difficult working conditions of power plant flue gas)

Communication Interface: Dual Ethernet Modbus TCP, RS485/RS232 Modbus-RTU, support RemoteView remote debugging for downloading programs

IV. Control Function (inheritance from classic 505, function upgrade)

Control Mode: Speed PID, load PID, extraction / makeup steam cascade control, back pressure control, suitable for single valve, staged valve, back pressure / back pressure / driving steam turbine

Unit Startup and Shutdown Logic: Fully automatic cold state / hot state startup, warm-up acceleration, critical speed avoidance (3 segments critical vibration avoidance intervals), manual / automatic seamless switching

Protection Function: Over-speed protection, low-speed interlock, valve position over-limit, abnormal oil pressure shutdown; SOE event sequence recording (millisecond level), historical curve storage, fault black box

Companion Components: Perfectly match Woodward's full range of electro-hydraulic converters (9907-1200, 8901 series), actuators, OPC communication for connecting to DCS system

Application Industries

Self-owned power plants, waste heat power generation, catalytic smoke machines / expansion machines in refining and chemical, paper mill driving steam turbines, offshore oil and gas turbines, biomass power generation unit speed control system