Woodward      5403-616
这些控制装置可用于正向或反向作用应用，也可用于单或串联致动器。可提供三种不同致动器电流范围的型号，以及高压型号（90至150 Vdc或88至132 Vac，45至440 Hz）和低压型号（20至40 Vdc）。高压模型在正面识别为高压模型；低压型号不是。在反作用系统中，当执行器电压降低时，执行器需要更多燃油。执行器完全失压将驱动执行器充满燃油。这允许备用机械球头调速器控制，而不是像直接作用系统那样关闭原动机。还提供可选减速坡道。当存在此选项时，从额定转速过渡到怠速的时间约为20秒。如果此选项不存在，则会立即发生。表1-1和1-2显示了所有9905/9907系列2301A负载共享和速度控制的零件号和特性。反向作用控制装置的外部接线与直接作用控制装置的接线相同。原动机转速和传感器输出频率之间的关系用以下公式表示：传感器频率（Hz）等于转速传感齿轮上的齿数乘以额定原动机转速（单位：转数/分钟）除以60。伍德沃德或其任何授权经销商或代理商的应用工程师随时可以帮助您为系统选择正确的控件，或回答有关控件安装、操作或校准的问题。联系方式见第6章。参考以下出版物包含有关负载共享和速度控制以及相关部件的其他产品或安装信息。技术手册标题25070《电子调速器安装指南》26260《控制原理和电源管理》82384 SPM-A同步器9905-002 82510《电子控制用磁性拾音器和接近开关》82715《电子控制、印刷电路板的处理和保护指南》，和模块产品规范标题82383 SPM-A同步器82390 2301A负载共享和速度控制（9905系列）82516 EG3P/6P/10P执行器82575 EGB1P/2P调速器/执行器

These controls are available for forward- or reverse-acting applications, and for use with either single or tandem actuators. Models for three different actuator current ranges are available, as well as a high-voltage model (90 to 150 Vdc or 88 to 132 Vac, 45 to 440 Hz), and a low-voltage model (20 to 40 Vdc). The high voltage model is identified as such on the front; the low voltage model is not. In reverse-acting systems, the actuator calls for more fuel when the actuator voltage decreases. Complete loss of voltage to the actuator will drive the actuator to full fuel. This allows a backup mechanical ballhead governor to take control rather than shut down the prime mover as would a direct-acting system. An optional deceleration ramp is also offered. When this option is present, the time to ramp from rated speed to idle speed is approximately 20 seconds. If this option is not present, this happens instantly. Tables 1-1 and 1-2 show part numbers and features of all 9905/9907 series 2301A load sharing and speed controls. External wiring connections for reverse-acting controls are identical to those for direct-acting controls. The relationship between prime mover speed and sensor output frequency is expressed in the formula: Sensor Frequency in Hz equals the number of teeth on the speed sensing gear times the rated prime mover speed in revolutions per minute divided by 60. Application engineers from Woodward or any of its authorized distributors or agents are always available to assist you in selection of the correct control for your system, or to answer questions concerning control installation, operation, or calibration. See Chapter 6 for contact information. References The following publications contain additional product or installation information on Load Sharing and Speed Controls, and related components. technical manual title 25070 Electronic Governor Installation Guide 26260 Governing Fundamentals and Power Management 82384 SPM-A Synchronizer 9905-002 82510 Magnetic Pickups & Proximity Switches for Electronic Controls 82715 Guide for Handling and Protection of Electronic Controls, Printed Circuit Boards, and Modules product specification title 82383 SPM-A Synchronizer 82390 2301A Load Sharing and Speed Controls (9905 Series) 82516 EG3P/6P/10P Actuator 82575 EGB1P/2P Governor/Actuato