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Description
Model 8280-1129 is a single-engine digital speed control designed for single-engine, single-propeller (variable or fixed pitch) marine propulsion systems. This Woodward 723PLUS control can be used with medium- and high-speed diesel reciprocating engines to control speed and load. Speed-sensing is done by either passive magnetic pickups (MPUs) or active proximity switches (two inputs).
Woodward control model 8280-1129 requires a voltage power source of 18 to 40 Vdc, capable of supplying 40 W and 7 A. It is suitable for use in locations that provide an operating temperature range of –40 to +70 °C (–40 to +158 °F). Mounting and operating this 723PLUS control outside of this range may cause damage to the unit and negatively affect performance.
For full details on part number 8280-1129, including additional location considerations and safety precautions, please refer to Woodward 723PLUS Digital Speed Control for Single Engine Marine Propulsion Applications Product Manual 26549.
8280-1129 Technical Specifications
| Weight | Approximately 6.5 pounds |
| UL/cUL Listing Standards | Class 1, Division 2, Groups A, B, C, D |
| Power Supply Rating | 18–40 Vdc (24 or 32 Vdc nominal) |
| Power Consumption | 40 W nominal |
| Analog Output | 0–1 mA or 4–20 mA (max. 600 ohms load) |
| Operating Temperature | MAX 158 F |
| Model | 723PLUS Single Engine Marine control |
| Manual | 26549 |
| Inrush Current | 7 A for 0.1 ms (low-voltage model) |
| Analog Output Accuracy | 0.5% of full scale |
8280-1009
I/Os on the 723PLUS 8280-1129 control include three configurable analog outputs, an actuator output, and three relay inputs (engine trouble, shutdown, status indication). This Woodward control boasts three communication ports, which are as follows:
- One port dedicated to Standard PC Interface, Watch Window, or a hand-held programmer (Woodward part number 9907-205)
- Two ports are configurable to RS-422, RS-232, or RS-485.
Of the two configurable communication ports, one is configured for Servlink, while the other is configured for Modbus.
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