WOODWARD 8273-140 Digital load distribution and speed control module

Specific Parameters

Electrical Parameters
Supply Voltage: 24V DC ±10%, optional AC 220V input supported
Power Consumption: 140W
Input Signals:
Analog Input: 0-10V DC, 4-20mA DC (receiving sensor physical quantity signals)
Digital Input: Switch status signals, pulse signals
Output Signals:
Analog Output: 4-20mA DC (driving actuators)
Digital Output: Relay contact output (controlling on-off of switching devices)
Communication Protocol: Modbus serial communication supported
Frequency Adaptation: 50/60Hz
Environmental Parameters
Operating Temperature: -40°C to 70°C
Storage Temperature: -45°C to 85°C
Relative Humidity: 5% to 95% (non-condensing, no dew formation)
EMC Immunity: Compliant with industrial-grade equipment anti-interference standards
Protection Class: IP20 (module itself)
Mechanical Parameters
Dimensions: 390mm (W) × 260mm (H) × 400mm (D)
Weight: 4.26kg
Mounting Method: Panel or rack mounting
Housing Material: Cold-rolled steel plate with powder coating (UL 94 V-0 flame retardant)

Product Performance

The module adopts adaptive speed sensing algorithm, with speed control accuracy up to ±0.1% and load sharing accuracy ±0.5% FS, enabling load balancing adjustment among multiple units. The control response time is <1.0s, which can adjust engine speed in real time according to load changes to ensure stable output voltage and frequency.

It integrates manifold air pressure limiter, torque limiter and low-speed sensing function, supporting remote speed/load reference setting, soft load transfer and automatic idle-to-rated speed switching. It has optional load rejection/load pulse function and idle droop control, adapting to complex working conditions.

Built-in fault self-diagnostic system can capture and record fault data for traceability analysis, with diagnosis coverage ≥98%. It supports testing and parameter configuration via PC, and Modbus communication function realizes seamless integration with SCADA/DCS systems. Industrial-grade wide-temperature design combined with anti-interference circuit ensures equipment operation stability >99.9%, and mean time between failures (MTBF) ≥300,000 hours.

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