Electrical Training Equipment with Mitsubishi FX1S-20MR PLC and Aluminum-Alloy T-Slot Panel for Multi-Control Modes Pneumatic PLC Training Workbench

This experimental platform is designed around standard textbooks such as Hydraulic and Pneumatic Transmission Technology and Training and Pneumatic Control Technology. It is suitable for undergraduate courses and graduation projects (theses) in mechanical and mechatronics fields. The platform integrates a programmable logic controller (PLC) with industrial pneumatic components and actuator modules. Beyond conventional basic pneumatic control circuit experiments, it supports pneumatic-electrical control circuit application experiments, pneumatic-PLC control circuit design, and other pneumatic technology course designs.

1. Reversing circuit of a single-acting cylinder
2. Reversing circuit of a double-acting cylinder
3. Single-acting cylinder speed control circuit
4. Double-acting cylinder one-way speed regulating circuit
5. Double-acting cylinder bidirectional speed regulation circuit
6. Speed switching circuit
7. Buffer circuit
8. Secondary pressure control circuit
9. High-low voltage conversion circuit
10. Counting circuit
11. Delay circuit
12. Overload protection circuit
13. Interlocking circuit
14. Single-cylinder single reciprocating control circuit
15. Single-cylinder continuous reciprocating motion circuit
16. Linear cylinder sequential action circuit
17. Multi-cylinder sequential action circuit
18. Twin-cylinder synchronous action circuit
19. Multi-cylinder linkage circuit
20. Unloading circuit
21. Application circuit of OR gate-type shuttle valve
22. Application circuit of quick exhaust valve
23. Learning and application of PLC instruction programming and ladder diagram programming
24. Learning and using PLC programming software
25. Communication between PLC and computer, online debugging and monitoring
26. PLC-controlled basic hydraulic circuit (optimized control)

The experimental platform consists of several parts, including the experimental platform frame, working pump station, pneumatic components, and main unit box.

The experimental bench measures 1600 mm (L) × 700 mm (W) × 1760 mm (H). The main structure is constructed entirely of high-performance anodized aluminum profiles and one-piece die-cast aluminum frame components. These components are die-cast (non-welded) and then machined, shot-blasted, sandblasted, and electrostatically powder-coated. Installation is convenient and quick, allowing users to assemble it themselves. The tabletop columns are made of industrial aluminum profiles with anodized surface. The cross-section dimensions are 70 × 70 mm, with grooves on all four sides approximately 8 mm wide, and molded plastic end caps. The tabletop uses a 25 mm E1-grade melamine-faced panel with a supporting frame capable of bearing at least 200 kg. Storage cabinets are included for storing training boxes and other equipment. The cabinets are equipped with four high-strength, universal, brakeable PU casters for easy movement. The overall design is simple yet sophisticated, exuding a high-end, modern aesthetic that aligns with contemporary product trends.

The two table legs at the back of the experimental table extend upwards, forming a training operation screen with a triangular beveled sheet metal frame on the side and an aluminum alloy operation panel with T-slots. During training, the pneumatic control module is fixed in place. The experimental host box is installed on the top of the experimental table frame. The host box provides time relays, programmable controllers, control buttons, proximity switches, DC power supplies, and other components for the experiment.

• Safety protection: External power is input through a leakage current switch and a fuse, then supplied to the experimental platform.
• Time relay module: Provides a set of digital display time relays from 0 to 999 seconds; the normally open and normally closed times can be set according to experimental needs.
• Relay control module: Provides two relay control modules.
• Programmable Logic Controller (PLC): Mitsubishi FXS20MR series, 20 I/O ports, relay output, power supply voltage AC 220 V / 50 Hz, control voltage DC 24 V, equipped with manual, automatic, and sequential control functions.

Primarily using Shengqi pneumatic components; see the attachment for configuration details. All pneumatic components are equipped with transition base plates, allowing for convenient and flexible placement of components on the experimental panel (an aluminum alloy profile structure with "T" grooves). Quick-connect couplings are used for loop connections, enabling easy and rapid assembly and disassembly.