24 Figure 4. 24 Figure 4.5 nView Desktop Manager Setup Wizard Window Management (2). 23 Figure 4.4 nView Desktop Manager Setup Wizard Window Management (1). Keywords - Hydraulic Servo, Aerotech A3200, Step response, Bode plot, Semi-Solid Machine. Figure 4.3 nView Desktop Manager Setup Wizard Selecting a Profile. The result of average error in this experiments after adjustment are 0.017-0.166 mm for parameter kp 250000, ki 10000. The last step is to implement and adjust kp/ki in actual system and measure the real position error.Based on this research, it concluded that the error before adjustment are 0.6118-1.2642 mm for autotune parameter kp 3500000, ki 50000. ![]() Having obtained the minimum error from adjusting kp and ki in matlab, a trend graphic error was used as a guideline to adjust parameter in actual system. ![]() The first software was the motion controller software (Aerotech A3200, Nview. a step response was simulated in matlab to analyze the error of the hydraulic system. Najmeh Rafiepour Nabiollah Karimelahi, for their patience and support. Where the simulated testing is using the input unit (step) and frequency (bode) to predict the circumstances that occurred to the plan which is then compared with experimental results. Prior to the optimization, simulation was conducted using matlab. ![]() In this research, study was done by optimize kp and ki parameters of the control system. To get the effect of the control parameters of the plant (hydraulic servo), a mathematical approach is used for simulation in matlab. The digital control parameters (kpos, kp, ki) are used to enhanced the hydraulic movement. Semi-solid machine positioning movements are required to have a high accuration, to get the high accuracy of the movement system a servo hydraulic control is added ,which consist of servo valve and digital controller (Aerotech A3200). Abstract – Hydraulics machines are important parts in semi solid metal forging machine, to form the workpiece by pressing.
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