9907-164 9907-164 基于数字微处理器的控制器

9907-164 技术规格

9907-164 装置设计用于通过操作单个抽气和/或进入涡轮机来控制蒸汽轮机。它利用涡轮机的分式执行器（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，该装置可由现场操作员在现场进行配置。菜单驱动的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 配备一系列离散和模拟输入：16 个触点输入（其中 4 个专用，12 个可编程），然后是 6 个可编程电流输入，电流为 4 至 20 mA。9907-164 功能中包含的标准功能包括临界速度回避、气门限制器、自动启动顺序和停机先出指示器。

9907-164

The 9907-164 unit is designed to control a steam turbine by operating a single extraction and/or entry turbine. It uses one or both of the turbine’s split actuators to drive the steam inlet valve.

As with any 505 governor module, the unit can be configured in the field by a field operator. Menu-driven software is controlled and changed by an operator control panel integrated on the front of the device. The panel displays two lines of text, each of 24 characters.

The 9907-164 is equipped with a range of discrete and analog inputs: 16 contact inputs (of which 4 are dedicated and 12 are programmable), followed by 6 programmable current inputs with currents from 4 to 20 mA. Standard features included in the 9907-164 feature include critical speed avoidance, valve limiter, automatic start sequence, and stop-first out indicators.

9907-164