PU516输出个性模块,PU516培训教程
当致动器保持在行程的0%末端时停止，功能代码150记录LVDT差分电压
规范S8中为0%。记录0%读数后执行器在选定的冲程时间移动到位置
来自多功能处理器模块的需求。100%如果指定的校准周期数在S7中大于1。校准周期完成后，
执行器从多功能处理器模块。
13、让循环完成。规范S8（0%）和S9（100%）存储校准周期内确定的LVDT差分电压值。新值替换初始值或以前的校准值。
PU516输出个性模块模拟控制调谐理论因为控制回路的许多方面都会影响
系统响应，开发数学模型是不切实际的用于计算最佳控制器增益的模型。控制回路
影响系统响应的特征包括：1、LVDT变压器伺服阀的特性和液压执行器，如操作规范，
阻抗公差、线路损耗、液压系统效率、，致动器弹簧公差和变压器性能。
2、闭环（反馈）控制固有的滞后时间系统
While the actuator is held against the 0% end of travel
stop, function code 150 records the LVDT differential voltage at
0% in specification S8. After recording the 0% reading, the
actuator moves at the selected stroke time to the position
demand from the multi-function processor module. The 100%
to 0% cycle repeats if the number of calibration cycles specified
in S7 is more than 1. When the calibration cycles are complete,
the actuator ramps to the position demand from the
multi-function processor module.
13. Allow the cycle to complete. Specifications S8 (0%) and S9
(100%) store the value of the LVDT differential voltages deter
mined during the calibration cycle. The new values replace the
initial values or previous calibration values.
ANALOG CONTROL TUNING THEORY
Because there are many aspects of a control loop that affect the
system response, it is impractical to develop a mathematical
model to calculate the optimum controller gain. Control loop
characteristics that affect the system response are:
1. The characteristics of the servo valve, LVDT transformer
and hydraulic actuator such as operating specifications,
impedance tolerances, line loses, hydraulic system efficiency,
actuator spring tolerance and transformer performance.
2. Lag time inherent in a closed loop (feedback) control
system.
