PU516輸出個性模塊,PU516培訓(xùn)教程
當(dāng)致動器保持在行程的0%末端時停止，功能代碼150記錄LVDT差分電壓
規(guī)范S8中為0%。記錄0%讀數(shù)后執(zhí)行器在選定的沖程時間移動到位置
來自多功能處理器模塊的需求。100%如果指定的校準(zhǔn)周期數(shù)在S7中大于1。校準(zhǔn)周期完成后，
執(zhí)行器從多功能處理器模塊。
13、讓循環(huán)完成。規(guī)范S8（0%）和S9（100%）存儲校準(zhǔn)周期內(nèi)確定的LVDT差分電壓值。新值替換初始值或以前的校準(zhǔn)值。
PU516輸出個性模塊模擬控制調(diào)諧理論因?yàn)榭刂苹芈返脑S多方面都會影響
系統(tǒng)響應(yīng)，開發(fā)數(shù)學(xué)模型是不切實(shí)際的用于計算最佳控制器增益的模型?？刂苹芈?/p>
影響系統(tǒng)響應(yīng)的特征包括：1、LVDT變壓器伺服閥的特性和液壓執(zhí)行器，如操作規(guī)范，
阻抗公差、線路損耗、液壓系統(tǒng)效率、，致動器彈簧公差和變壓器性能。
2、閉環(huán)（反饋）控制固有的滯后時間系統(tǒng)
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.
