I. Product Description

Brand: WOODWARD (USA), Model: XD1G11, Original imported digital unit speed control controller, specially designed for diesel/gasoline internal combustion engines and small industrial steam turbines. It integrates speed PID regulation, unit protection, on-site parameter setting functions. It can operate independently as a single unit for constant speed control, or be connected to the factory DCS/PLC system to achieve remote speed control. It is widely used in marine power units, land-based power generators, and industrial sites. The panel is embedded for installation.

Key Technical Parameters Table

Parameter items Technical specifications

Power supply DC 18~36V (nominal 24VDC), optional 90~140VAC AC power supply

Speed measurement input MPU magnetic sensor, speed measurement range 100~12000 RPM, programmable setting

Speed control accuracy Steady-state speed control error ≤ ±0.25% FS

Communication interface RS232 + RS485, Modbus-RTU protocol, connected to upper-level SCADA/DCS

Protection level IP65 (NEMA4X) dust-proof and water-proof enclosure

Operating environment -40℃ to +85℃, suitable for high humidity, dust, vibration conditions

Overall machine weight 1.2kg

Dimensions 180×120×90mm

Product certifications UL, CE, ATEX, IECEx explosion-proof certification

 Product performance

Built-in fully digital PID speed control algorithm, supports constant speed (no difference) / droop (with difference) two speed control modes, suitable for isolated grid operation and grid-connected conditions;

Equipped with overspeed, low oil pressure, high temperature shutdown interlock protection, fault code storage, local LCD screen for viewing fault records;

Full-channel electrical isolation design, resistant to frequency interference from inverters and high-power motors, stable operation in harsh offshore/chemical refining conditions;

Support local button parameter modification + remote configuration and debugging via computer software, parameter power-off permanent storage;

Can drive electronic actuators to output 0~10V/4-20mA speed control instructions, compatible with most Woodward matching actuators.

IV. Application fields

Land-based power generation: industrial self-owned diesel/gas power generation units, distributed micro power stations, emergency backup power units;

Ship power: main and auxiliary engines of ships, ship emergency power original motive equipment speed control;

Oil and gas industry: oilfield booster gas generator, well site mobile power equipment;

Industrial thermal power: small-scale waste gasification power generation units, residual heat utilization internal combustion unit control systems.

List of same series models of XD1 series

XD1G08: Basic economy single-machine speed control controller (without communication function)

XD1G10: Simple grid-connected speed regulator, single-channel 485 communication

XD1G11: Standard full-function model (this product, dual serial ports + full protection + wide temperature range)

XD1G15: Special speed control controller for multi-machine parallel load distribution

XD1G20: High-end speed module for large power gas turbines