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Configured for precise engine-driven generator regulation and speed reference execution in power management networks, the WOODWARD 8273-501 (8273-501 Digital Load Sharing and Speed Control) provides direct physical/electrical execution.
| Parameter | Specification |
|---|---|
| Model | 8273-501 |
| Brand | WOODWARD |
| Origin | USA |
| Weight | 1.91 kg (2 lbs) |
| Dimensions | 263 x 58 x 28 mm |
| Operating Temp | -40 to 70 deg C (-40 to +158 deg F) |
| Power Consumption | Less than 20 W |
| Input Voltage | 18 to 40 VDC (24 VDC nominal) |
| Speed Range | 90 to 3600 RPM |
| MPU Frequency Range | 100 to 20,000 Hz |
| Analog I/O | 2 configurable inputs, 1 configurable output |
| Discrete I/O | 8 discrete inputs (3 configurable), 4 configurable relay outputs |
| Serial Communication | RS-232 / RS-422 via 9-pin connector (1200 to 38,400 baud, full duplex) |
The module evaluates incoming MPU frequency signals ranging from 100 to 20,000 Hz to calculate real-time speed deviations against a 4-20 mA speed reference input. Control routines switch between isochronous and droop load sharing modes, maintaining high actuator loop feedback response. Internal output drivers adjust governor actuator positioning to balance generator load steps without inducing speed hunting or mechanical resonance.
Q: How is the RS-232/RS-422 serial interface configured for parameter tuning?
A: Serial communication connects via the dedicated 9-pin connector at baud rates between 1200 and 38,400 baud in full duplex mode to adjust internal control parameters using Woodward service software.
Q: What power supply tolerances are required for continuous operation?
A: The hardware operates within an 18 to 40 VDC input range (nominal 24 VDC) and draws less than 20 W under full I/O loading conditions.