Woodward 5464-716A模块备件

Woodward 5464-716A

505与一个或两个控制阀接口，以在
时间和限制附加参数（如果需要）。一个受控参数是：
然而，通常速度（或负载），505可用于控制或限制：
一级涡轮进口压力或流量、排气（背压）压力或流量
压力、发电机功率输出、设备进口和/或出口水平、压缩机
入口或出口压力或流量、装置/工厂频率、工艺温度，或
任何其他涡轮机相关工艺参数。请参阅本手册2卷
有关应用程序的详细信息。
通讯
505可直接与工厂分布式控制系统通信，和/或
基于CRT的操作员控制面板，通过两个Modbus®
*通信
港口。这些端口支持RS-232、RS-422或RS-485通信，使用
ASCII或RTU MODBUS传输协议。之间的通信
505和工厂DCS也可以通过硬接线连接来执行。
由于所有505个PID设定点都可以通过模拟输入信号来控制，
不牺牲接口分辨率和控制。
*-Modbus是施耐德自动化股份有限公司的商标。
附加功能
505还提供以下功能：先出跳闸指示（5总跳闸
输入）、临界速度避免（2个速度带）、自动启动顺序（热）&
冷启动）、双速度/负载动态、零速度检测、峰值速度
超速跳闸指示和机组之间的等时负荷分配（带
DSLC™ 对照）。
使用505
505控制具有两种正常操作模式，编程模式和编程模式
运行模式。程序模式用于选择配置所需的选项
该控件适用于您的特定涡轮机应用。一旦控制完成
配置后，通常不再使用编程模式，除非涡轮机
选项或操作更改。配置后，运行模式用于运行
汽轮机从启动到停机。此外，在线调整可以
可以使用服务模式进行（参见2卷）

Woodward 5464-716A

Woodward 5464-716A
The 505 interfaces with one or two control valves to control one parameter at a time and limit an additional parameter, if desired. The one controlled parameter is typically speed (or load), however, the 505 could be utilized to control or limit: turbine inlet pressure or flow, exhaust (back) pressure or flow, first stage pressure, generator power output, plant import and/or export levels, compressor inlet or discharge pressure or flow, unit/plant frequency, process temperature, or any other turbine related process parameter. Refer to Volume 2 of this manual for details on applications. Communications The 505 can communicate directly with plant Distributed Control Systems and/or CRT based operator control panels, through two Modbus® * communication ports. These ports support RS-232, RS-422, or RS-485 communications using ASCII or RTU MODBUS transmission protocols. Communications between the 505 and a plant DCS can also be performed through hardwired connections. Since all 505 PID setpoints can be controlled through analog input signals, interface resolution and control is not sacrificed. *—Modbus is a trademark of Schneider Automation Inc. Additional Features The 505 also provides the following features: First-Out Trip Indication (5 total trip inputs), Critical Speed Avoidance (2 speed bands), Auto Start Sequence (hot & cold starts), Dual Speed/Load Dynamics, Zero Speed Detection, Peak Speed Indication for Overspeed trip, and Isochronous Loadsharing between units (with a DSLC™ control). Using the 505 The 505 control has two normal operating modes, the Program Mode and the Run Mode. The Program Mode is used to select the options needed to configure the control to your specific turbine application. Once the control has been configured, the Program Mode is typically never again used, unless turbine options or operation changes. Once configured, the Run Mode is used to operate the turbine from start-up through shutdown. In addition, on-line adjustments can be made using the Service Mode (see Volume 2)