The unit shall perform the following experiments and investigations: 
Learning Objectives / Experiments

• Familiarisation with the mode of operation of a hydraulic position control loop with adjustable load conditions
• Reading and understanding circuit diagrams
• Replacing springs and adjusting the damper
• Influence of load and system pressure on control accuracy
• Influence of the amplifier constants on the stability of the closed control loop 
• Recording the frequency response Specification 

 [1]   Self-contained training system of a complete hydraulic position control loop with adjustable loading conditions
 [2]   Oil circuit with hydraulic unit, hydraulic accumulator, 2 manometers, control valve and hydraulic cylinder to move a weighted carriage
 [3]   Operation of the electromagnetic control valve for position control by servo amplifier
 [4]   Servo amplifier with 2 29 | P a g e Mechatronics Lab_2022 adjustable
 [5]   Gain
 [6]   All control variables available as voltage signals
 [7]   Potentiometric displacement sensor 
 [8]   Adjustable load conditions on carriage using 2 springs with hand wheel and adjustable damping 
 [9]   Low -friction ball bearing - mounted carriage
[10]  Mobile steel profile trolley with built -under unit
[11]  Software for data acquisition via USB under Windows 7, 8.1, 10 Including PC1 Computer -System with 21" TFT -Monitor Win 10 engl. 
Technical Data 
Hydraulic unit 

• Power output: 1,1kW - flow rate: 4,3L/min
• Head: 1500m - tank capacity: 10L Hydraulic accumulator capacity: 2L Accumulator charging valve: max. 40L/min Hydraulic cylinder
• Piston diameter: d=40mm
• Stroke: 150mm 
• Mass moved: 50kg Control valve NG6
• Nominal flow rate: 24L/min 
• Activation: ±10V Potentiometric position sensor
• Measuring range: 150mm
• Output: 0 …10V 400V, 50Hz, 3 phases 400V, 60Hz, 3 phases 230V, 60Hz, 3 phases; UL/CSA optional

 Dimensions and Weight LxWxH: 1680x670x1600mm Weight: approx. 420kg