此处列出的设备是9907-164型，是基于505和505E微处理器的调速器控制单元的一部分。这些控制模块专门设计用于操作汽轮机、涡轮发电机和涡轮膨胀机模块。505/505E系列最初由伍德沃德公司开发、生产和制造。伍德沃德成立于1870年，是美国历史最悠久的工业制造商，至今仍是市场上领先的工业公司之一。

9907-164装置旨在通过操作汽轮机的单一抽汽和/或进汽来控制汽轮机。它利用汽轮机的分段执行机构，其中一个或两个，来驱动蒸汽入口阀。

与任何505调速器模块一样，该装置能够由现场操作员在现场进行配置。菜单驱动软件由集成在设备正面的操作员控制面板控制和更改。该面板显示两行文本，每行24个字符。

9907-164配备了一系列离散和模拟输入:16个触点输入(其中4个是专用的，12个是可编程的)，然后是6个可编程的电流输入，在4至20毫安。9907-164的标准功能包括临界速度避免、阀门限制器、自动启动顺序和停机先出指示器。

9907-164

The equipment listed here is the 9907-164 model, which is part of the governor control unit based on 505 and 505E microprocessors. These control modules are specifically designed for operating steam turbines, turbine generators, and turbine expander modules. The 505/505E series was initially developed, produced, and manufactured by Woodward Company. Woodward was founded in 1870 and is the oldest industrial manufacturer in the United States, still one of the leading industrial companies in the market today.

The 9907-164 device aims to control the turbine by operating a single extraction and/or inlet of the turbine. It utilizes the segmented actuator of the steam turbine, one or two of which, to drive the steam inlet valve.

Like any 505 governor module, this device can be configured by on-site operators on site. The menu driven software is controlled and modified by an operator control panel integrated on the front of the device. This panel displays two lines of text, each containing 24 characters.

The 9907-164 is equipped with a range of discrete and analog inputs: 16 contact inputs (4 of which are dedicated and 12 are programmable), followed by 6 programmable current inputs ranging from 4 to 20 milliamps. The standard functions of 9907-164 include critical speed avoidance, valve limiters, automatic start sequence, and stop first out indicator.