Sequence Control -Introduction- 2016.04.27 아드리안

Content 1. Laboratory equipment 공압 부품 2. Sequence control 순서 제어 (시퀀스 제어) 3. Pneumatic circuit 공압 회로 4. Electric circuit 전기 회로 5. Practice example.

1. Laboratory equipment

Contact and relay Push button Normally Open Normally Close On / Off button

Solenoid valve 5/2 solenoid valve - Electric an pneumatic port

Pneumatic cylinder Single acting cylinder ->Return by spring Double acting cylinder ->Return by air pressure

Limit switch Electric contact - Normally Open Normally Close

Timer ON DELAY TIMER It delays the turning ON of a device by some time OFF DELAY TIMER It delays the turning OFF

Counter Counter up Adding counter Counter down Preset

2. Sequence programming 미리 정해진 순서에 따라 제어의 각 단계를 차례로 진행해 가는 제어를 말한다.

순서 제어 예시 1) 실린더 A가 상자를 들어 올린다. 2) 실린더 B가 상자를 컨베이어로 옮긴다. 3) 실린더 A가 내려온다. 4) 실린더 B가 귀환한다.

3. Pneumatic circuit diagram Pneumatic component list Symbol Description 공기 압축기 단동식 실린더 3/2 솔레노이드 밸브 호스 복동식 실린더

Pneumatic circuit diagram Single actuated cylinder A Manual directional control valve P R R(Return) Pressure Supply

4. Electrical circuit design Electric component list Symbol Description Push button 케이블 솔레노이드 밸브 On delay Timer Off delay Timer Limit Switch

Electrical circuit design P 24V C CC L M N 0V PB & Solenoid LS (b) & Lamp PB (b) & Coil (output) On delay timer & Motor Limit switch & Counter coil Off delay & Solenoid

Electrical circuit design P 24V OR AND C N 0V

5. Practice example Step 1. Project definition. Step 2. Flow chart. Step 3. Pneumatic circuit. Step 4. Pneumatic component list. Step 5. Electric circuit. Step 6. Electric component list. Step 7. Test and data collection. Step 8. Conclusion.

Step 1 & 2. Project definition and Flow chart. Using an A type push button activate a single acting cylinder. (Return by spring) Start (On) Directional control valve (Manual) Cylinder YES End (Off) NO Check the system

Step 3. Pneumatic circuit.

Step 4. Pneumatic component list. Symbol Description 공기 압축기 단동식 실린더 수동 조작 방향 제어 밸브 호스

Step 5. Electric circuit* 24V N 0V * 솔레노이드 밸브 쓸 경우

Step 6. Electric component list* Symbol Description Push button 케이블 솔레노이드 밸브 * 전자부품 쓸 경우 Step 7. Test and data collection. Go to the lab.

Step 8 –Homework- -공압 회로 및 전기 회로 만들기- Single actuated cylinder (Manual) Double actuated cylinder (PB + Solenoid valve) Two cylinders (cross actuated) Step 2 + Limit switch