Tugas Pneumatik - Metode Cascade

Summary

In this video, Wildan Abdillah explains the gas-get method and cash gap method used to address signal conflicts in pneumatic systems. The video outlines how these methods help resolve issues when a 5/2 valve receives opposing pressures. A step-by-step explanation is provided, demonstrating how air is divided between two groups to control the movements of two pistons through limit switches. The process is repeated in a loop, activated by a start-stop push button. The video also emphasizes the importance of managing air flow to avoid signal conflicts and ensure smooth piston movement.

Takeaways

• 😀 The gas get method (A + B, + B Min Amin) is used to resolve signal conflicts in pneumatic systems, especially in 5/2 valve operations.
• 😀 Signal conflicts occur when the 5/2 valve receives two conflicting signals, preventing the pneumatic system from functioning properly.
• 😀 The solution involves dividing the air flow into two groups to prevent conflicts and ensure smooth operation.
• 😀 The process begins when the start-stop push button is pressed to activate the system, allowing air to flow into Group 1.
• 😀 As piston A moves forward, it activates Limit Switch A1, which causes piston B to start moving forward as well.
• 😀 When piston B reaches its limit, it triggers Limit Switch 1, which causes the air flow to switch from Group 1 to Group 2.
• 😀 The air shift from Group 1 to Group 2 moves piston B backward, after which Limit Switch B0 activates the air flow to piston A.
• 😀 Piston A moves backward until it reaches its limit switch, completing one full cycle of movement.
• 😀 The air flow is redirected back to Group 1 after piston A completes its movement, ensuring the system is ready for the next cycle.
• 😀 The cycle continues automatically and can be halted by pressing the start-stop push button again.
• 😀 The method ensures smooth pneumatic system operation by preventing conflicting signals and properly managing air flow between two groups.

Q & A

What is the main problem addressed by the gas get method?

The gas get method is used to address the issue of signal conflicts that arise in the intuitive method, where a 5/2 valve receives pressure from two opposing directions, preventing the pneumatic system from moving.

What does the conflict signal condition involve?

A conflict signal occurs when a 5/2 valve is subjected to opposing pressures from two directions, which prevents the pneumatic actuator from moving.

How does the gas get method resolve the conflict signal?

The gas get method resolves the conflict by using a descriptive method that involves controlling air flow to the valve, preventing conflicting signals that would cause movement issues.

What are the steps involved in the Aplus B + B Min Amin cycle?

The cycle starts with piston A moving forward, activating limit switch A1, which causes piston B to move forward. Then piston B activates limit switch 1, causing piston B to move backward. The movement continues alternately between pistons A and B, with the use of limit switches and a start-stop push-button.

What is the function of the limit switches in this system?

Limit switches in this system control the movement of pistons A and B by activating valves to direct the air flow, which in turn triggers the pistons to move forward or backward at the correct times.

How does the start-stop push button control the cycle?

The start-stop push button is used to activate and deactivate the entire cycle. Pressing the button starts the cycle, while releasing it stops the cycle.

What role does the air flow from the compressor play in the system?

The air flow from the compressor is directed to either Group 1 or Group 2 through the control valves, which in turn control the movement of pistons A and B, facilitating their alternating movement based on the system's requirements.

Why is it necessary to divide the airflow into two groups, Group 1 and Group 2?

Dividing the airflow into two groups ensures that the control valves receive the correct signals to alternate the flow of air between the pistons, allowing for proper movement without causing signal conflicts.

What happens when piston A and piston B move?

When piston A moves, it triggers limit switch A1, causing piston B to move forward. Similarly, as piston B moves, it activates limit switches that control the movement of piston A and the switching of air flow between the two groups.

What is the significance of the Group 1 and Group 2 air distribution?

The distribution of air to Group 1 and Group 2 ensures that the pneumatic system operates smoothly by controlling the direction of airflow to the valves, which in turn prevents signal conflicts and ensures synchronized piston movements.