61430001-UW输出电子模块
%DEV参数是在开关周期。该参数可以手动设置，也可以配置为自动。配置“自动”时自动调谐将%DEV设置为%HYS的4倍。这是提供良好自动调谐所需的最小值后果
%HYS参数是在中切换输出之前过程必须偏离设定值的量相反的方向。该值必须等于或略大于任何工艺噪声带。如果噪声带无法确定，当%HYS参数已配置为自动。%阶跃参数是阀门在前1.5个开-关循环中的变化量。在第一个循环之后自动调整器将调整步长，以将进程保持在%DEV参数的值内。随后自动调谐练习，该步骤将使用从上一练习计算的值，除非AT RESET参数设置为“是”或控制器已通电。自动调谐建议的动态响应可以是：配置为快速、中等或慢速。介质设置通常会提供一个没有或很少的响应超调至设定点阶跃响应。
当POST AT参数设置为YES时，控制回路将使用推荐的调整值，除非测试期间出现警告。
有关自动调谐的更多详细信息，请参阅本手册的操作部分。PID是一种比例+积分控制器，是五种控制器之一
可以在每个循环一个的基础上使用的控制器类型。它使用外部反馈提供整体动作。这个块允许与其他功能块交互，或外部设备，如气动控制器和切断阀开关，以消除可能与其他控制器类型。当参数TD为非零。
控制器包括：可由操作员启动的自动调谐功能使用快速访问功能的面板。
当输入A为高（1）时，控制器在正常自动模式，当低（0）时，使复位R跟踪（F-GE）。这将迫使控制器输出跟踪控制器限制内的反馈，并允许控制器切换回自动而不碰撞输出进程范围指针参数指向另一个
具有范围缩放的功能块，如模拟作为过程变量的输入。这使控制器，用于规范化
工艺范围。如果未配置此参数，则控制器将使用0.00-100.00的范围缩放。输入I，当从低（0）变为高（1）或从从高到低将导致控制器初始化（即。消除该循环期间的任何比例增益动作）。当使用开关块对设定点进行更改时，这可用于防止冲击输出。通电-在暖机或冷机通电期间，输出将初始化为最小刻度和所有动态元素将在第一次扫描时在当前输入处初始化。
The % DEV parameter is the maximum amount in % that the process should deviate from the setpoint during the
on-off cycles. This parameter can be set manually or can be configured as AUTO. When AUTO is configured, the
autotuner will set the % DEV to 4 times the % HYS. This is the minimum value needed to provide good autotuning
results.
The % HYS parameter is the amount that the process must deviate from setpoint before switching the output in the
opposite direction. This value must be equal to or slightly greater than any process noise band. If the noise band
can not be determined, the autotuner will compute it at the start of an autotuning exercise when the % HYS
parameter has been configured as AUTO.
The % STEP parameter is the amount that the valve will change on the first 1.5 on-off cycles. After the first cycles
the autotuner will adjust the step to keep the process within the value of the % DEV parameter. On subsequent
autotune exercises, the step will use the value computed from the previous exercise unless the AT RESET parameter
is set to YES or the controller has been power cycled. The dynamic response recommended by the autotuner can be
configured as Fast, Medium, or Slow. The Medium setting will normally provide a response that has no or little
overshoot to a setpoint step response.
When the POST AT parameter is set to YES, the control loop will be returned to Auto using the recommended
tuning values unless a warning occurred during the test.
More details on autotuning can be found in the Operation section of this manual. PID is a proportional + integral controller and one of five
controller types that can be used on a one per loop basis. It
uses external feedback to provide integral action. The
block allows interaction with other function blocks or
external devices, such as pneumatic controllers and shutoff
switches, to eliminate the windup that can occur with other
controller types. Derivative action is provided when the
parameter TD is non-zero. The controller includes an
autotune feature that can be initiated from the operator
faceplate using the QUICK access feature.
When input A is high (1) the controller operates in the
normal auto mode and when low (0) causes reset R to track
(F-GE). This will force the controller output to track the
feedback within the controller limits and allow the
controller to switch back to auto without bumping the
output.
The process range pointer parameter points to another
function block that has range scaling, such as an analog
input that is the process variable. This enables the
controller to normalize the tuning parameters for the
process range. If this parameter is not configured, the
controller will use a range scaling of 0.00-100.00.
Input I, when changed from low (0) to high (1) or from
high to low, will cause the controller to initialize (i.e.
eliminate any proportional gain action during that cycle).
This can be used to prevent bumping the output when changes are made to the setpoint using a switch block.
POWER UP - During a warm or cold power up, the output will be initialized to MINSCALE and all dynamic
elements will be initialized at the current input on the first scan.
