Technical description
The THPYC-E1A hydraulic drive & PLC training system is intended for "Hydraulic drive", "Hydraulic drive and control", and "Hydraulics" addressing on the requirements of colleges or vocational schools. It is complete with actual hydraulic components, various actuation modules, and relay control unit; furthermore, it combines PLC programming and MCGS configuration technologies, facilitating students to free make hydraulic circuit and control system.
Features:
Each hydraulic component is mounted on a base plate with flexible foots, easy to mount on the universal aluminium profile plate to construct various pneumatic circuits.
Low noise and low vibration design: the anti-vibration mounting of motor, oil tank, control panel, and vibration source significantly reduces the noise and vibration.
Both electrical control and PLC control are available for a hydraulic circuit, users can study more knowledge about PLC and master the advantage of PLC control through a series of experiments.
The hydraulic circuit is made up through quick–acting couplings, and the electrical control circuit is connected via special connecting wires. The system completed with hydraulic components trains the students' hands-on ability and thinking capacity.
Current type earth leakage protection is available in this system, which is activated to cut off the power supply immediately once the leakage current exceeds 30mA; DC 24V-operated electrical control, with overcurrent protection; phase loss and phase sequence protection to prevent the motor reversing; rated system pressure is 6.3MPa, over which the system will unload automatically.
The system is equipped with industrial-standard hydraulic components, features strong functions and wide application range since combining relay control technology, PLC, and computer configuration technology.
Specifications
(1) Power supply: 3-phase 4-wire AC380V±10% 50Hz
(2) Power capacity: ＜2Kva
(3) Variable vane pump: pressure 7Mpa; rated flow: 8L/min
(4) Motor: rated voltage 380V, rated power 1.5kW, rotation speed 1420r/min, insulation B
Equipment list
|
No.
|
Description
|
Specifications
|
Qty.
|
Remark
|
|
1
|
Control panel
|
|
1
|
|
|
2
|
Workbench
|
|
1
|
|
|
3
|
PLC
|
CPU224(14DI/10DO)
|
1
|
|
|
4
|
Relay unit
|
|
1
|
|
|
5
|
Power supply
|
|
1
|
|
|
6
|
Pushbutton unit
|
|
1
|
|
|
7
|
Time relay unit
|
|
1
|
|
|
8
|
PLC unit
|
|
1
|
|
|
9
|
Double-acting hydraulic cylinder
|
|
2
|
|
|
10
|
Variable vane pump and motor
|
VP-08
|
1
|
One-piece
|
|
11
|
Shakeproof stainless steel pressure gauge
|
|
1
|
|
|
12
|
2-way flow control valve
|
|
2
|
|
|
13
|
3/2 solenoid directional valve
|
|
2
|
|
|
14
|
4/2 solenoid directional valve
|
|
1
|
|
|
15
|
4/2 directional manual control valve
|
|
1
|
|
|
16
|
4/3 solenoid directional valve (with all-ports-closed center condition)
|
|
1
|
|
|
17
|
4/3 solenoid directional valve (with float center condition)
|
|
1
|
|
|
18
|
Throttle check valve
|
|
1
|
|
|
19
|
Check valve
|
|
1
|
|
|
20
|
Pilot-operated pressure relief valve
|
|
1
|
|
|
21
|
Direct-acting pressure relief valve
|
|
1
|
|
|
22
|
Direct-acting sequence valve
|
|
1
|
|
|
23
|
Direct-acting pressure reducing valve
|
|
1
|
|
|
24
|
Pilot-operated check valve
|
|
2
|
|
|
25
|
Pressure relay
|
|
2
|
|
|
26
|
Quick-acting coupling female half
|
Q/ZB275-77 06SM chromeplate
|
1 set
|
|
|
27
|
Quick-acting coupling male half
|
Q/ZB275-77 06PM chromeplate
|
1 set
|
|
|
28
|
Oil filter
|
WU-40×100J
|
1
|
|
|
29
|
Oil temperature/fuel level combination gauge
|
YWZ-100T
|
1
|
|
|
30
|
Cleaning cover
|
FCL-04
|
1
|
|
|
31
|
Air cleaner
|
QUQ2
|
1
|
|
|
32
|
Profile plate
|
8020
|
1 set
|
|
|
33
|
Limit switch
|
ME8108
|
2
|
|
|
34
|
High-pressure hose
|
Nominal diameter 6
|
20 pieces
|
|
|
35
|
Oil reservoir
|
Maximum capacity 90L, 2mm steel plate
|
1
|
|
|
36
|
Drip tray
|
|
1
|
|
|
37
|
Hydraulic oil
|
L-HL32
|
75L
|
|
|
38
|
Allen wrench
|
|
1 set
|
|
|
39
|
Monkey wrench
|
|
2
|
|
|
40
|
Long-handled screwdriver
|
|
1
|
|
|
41
|
PLC communication download cable (adapter)
|
PC/PPI
|
1
|
|
|
42
|
PLC programming software
|
|
1 set
|
Stored in the CD
|
|
43
|
CD (software and materials included)
|
|
1
|
|
The control panel is of iron with high density plastic-sprayed construction and aluminium faceplate. A profile plate is available on the control panel for mounting of hydraulic components. The workbench is of iron with high density plastic-sprayed construction, whose surface is fireproof, water proof, and wear resistant. The design of cabinets with profile plate facilitates storing hydraulic components.
Hands-on exercises
(1) Hydraulic drive demonstration system
(2) Basic hydraulic circuits
1) Pressure control circuit
A. Simple pressure control circuit
B. Pressure control circuit with multi pressure relief valve (2-stage pressure control circuit)
C. Pressure control circuit with pressure reducing valve
D. Pump unloading circuit with directional control valve
E. Pump unloading circuit with pilot-operated pressure relief valve
F. Balance circuit with sequence valve
2) Flow control circuit
A. Flow control circuit with throttle valve (constant/variable pressure flow control)
B. Flow control circuit with flow control valve (constant/variable pressure flow control)
C. Speed exchange circuit with short-connected flow control valves
D. Speed exchange circuit with flow control valves in series
E. Speed exchange circuit with flow control valves in parallel
F. Differential rapid circuit
3) Directional control circuit
4) Locking circuit
5) Two-cylinders control circuit
A. Sequential operation circuit with sequence valve
B. Sequential operation circuit with limit switch
C. Sequential operation circuit with pressure relay
D. Multi-cylinders synchronization circuit
(3) Relay-controlled basic hydraulic circuits
(4) PLC Technology
1) PLC programming with instructions and ladder diagram
2) Study and Application of PLC Programming Software
3) Communication between PLC and PC, and on-line debugging and monitoring
4) Basic PLC-controlled Hydraulic Circuits