Woodward 5464-661模块备件

Woodward 5464-661

编程模式：添加错误检查以确保额定速度（当
被编程为发电机组）小于max gov。
2.服务模式：将小负载的保持更改更改为来自
断路器逻辑头的保持改变输入。之前，保持更改
在速度控制设置标题下选择了命令。
3.速度设定点速率：更改了所有的小调整范围
速度设定点速率为0.01（为0.1）。
4.辅助限制器或控制器：增加逻辑以确保禁止状态
输入失败时的辅助控制。此外，更改了Aux重新启用
逻辑，以便当故障aux输入恢复时，不会出现故障
速度LSS。还更改了断路器断开逻辑，以校正发电机断开辅助
执行器输出故障。
5.辅助控制器：将速度设定点辅助偏置逻辑更改为仅
允许速度控制限制动作（在辅助控制中）在以下情况下激活：
速度设定点达到大调节值。在此修复之前，限速器可能：
在端瞬态期间进入控制。
6.辅助直接输入设定点：将辅助输入设定点更改为
在停机脉冲时复位/停止，而不是在停机时保持禁用
条件此更改允许辅助限制器功能直接输入设定点
即使当机组跳闸时。
7.AUX和CASC下垂：改变了下垂反馈滞后tau可调范围
从大10到大1000。
8.MODBUS：更改了Aux、Casc和
远程：为匹配Modbus列表，软件事件锁存器输入为：
与Modbus列表相反/相反。
9.受控停止：如果速度升高/降低，则使受控停止中止
选择或选择另一控制模式。这可以通过以下方式进行调整：
设置CNTRL_STOP.RL_STOP。在调试模式下，IN_2=*为false。
10.模拟输入：更改延迟时间可调范围的大设置
从3毫秒到3000毫秒。模拟输入故障延迟设置默认为：
零，但可以使用调试模式调整到3000毫秒
MAIN.AIx。其中x是模拟输入数。添加了一个可调
每个模拟输入的单滤波器（LAG）。输出/输入=1/（1+st），其中t=
1/（2（π）f）=LAG_。滞后tau默认为零，但可以调整
在调试模式下，使用MAIN.AIx_LAG。LAG_TAU，其中x是模拟量
输入数字（1-6）。
一般说明
全体的
基于505微处理器的控制设计用于控制单或双（分离
范围）执行机构汽轮机（抽汽汽轮机需要505E
版本）。505是现场可编程的，允许使用单一设计
并且减少了成本和交付时间。它
使用菜单驱动软件指导现场工程师编写控制程序
适用于特定的发电机或机械驱动应用。505可以是
配置为作为独立单元或与工厂的
分布式控制系统

Woodward 5464-661

Woodward 5464-661

PROGRAM MODE: Added an error check to ensure Rated Speed (when programmed as a gen set) was less than max gov. 2. SERVICE MODE: Changed the hold changes for Min Load to come from the Breaker Logic header's Hold Changes input. Previously the hold changes command was selected under the Speed Control Settings header. 3. SPEED SETPOINT RATES: Changed the minimum adjustment range for all speed setpoint rates to 0.01 (was 0.1). 4. AUX LIMITER or CONTROLLER: Added logic to ensure the inhibited status of Aux control when the input is failed. In addition, changed Aux re- enable logic such that when a failed aux input is restored there is no glitch to the speed LSS. Also changed breaker open logic to correct a Gen Opening Aux actuator output glitch. 5. AUX CONTROLLER: Changed the speed setpoint aux biasing logic to only allow the speed control limiting action (while in aux control) to be active when the speed setpoint reaches max gov. Prior to this fix the speed limiter could come into control during an extreme transient. 6. AUX DIRECT ENTERED SETPT: Changed Aux Entered setpoint to be reset/stopped on a shutdown pulse rather than held disabled on a shutdown condition. This change allows the Aux Limiter function direct setpoint entry even when the unit is tripped. 7. AUX and CASC DROOP: Changed the droop feedback lag-tau tunable range from a max of 10 to a max of 1000. 8. MODBUS: Changed the Gen and Tie Open alarms for Aux, Casc, and Remote to match the Modbus listing—the software eventlatch inputs were reversed/backwards with the Modbus listing. 9. CONTROLLED STOP: Made the Controlled Stop abort if speed raise/lower is selected or another control mode is selected. This can be tuned-out by setting CNTRL_STOP.RL_STOP.IN_2=*false in the debug mode. 10. ANALOG INPUTS: Changed max setting on the delay time’s tunable range from 3 ms to 3000 ms. The analog input failure delay setting is defaulted to zero but can be adjusted up to 3000 ms using the debug mode MAIN.AIx.LATCH_DLY where x is the analog input number. Added a tunable single pole filter (LAG) to each analog input. Output/input = 1/(1+st) where t = 1/(2(pi)f) = LAG_TAU. The Lag-tau is defaulted to zero but can be adjusted in the debug mode using MAIN.AIx_LAG.LAG_TAU where x is the analog input number (1-6). General Description General The 505 microprocessor-based control is designed to control single or dual (split range) actuator steam turbines (extraction steam turbines require the 505E version). The 505 is field programmable which allows a single design to be used in many different control applications and reduces both cost and delivery time. It uses menu driven software to instruct site engineers on programming the control to a specific generator or mechanical drive application. The 505 can be configured to operate as a stand-alone unit or in conjunction with a plant’s Distributed Control Sy