1. 서론
This manual provides essential information for the safe and correct installation, operation, and maintenance of the Keyence FU-2897 Fiber Optic Sensor. Please read this manual thoroughly before using the product to ensure optimal performance and prevent potential hazards. Keep this manual in a safe place for future reference.
2. 안전 정보
인명 피해 및 장비 손상을 방지하기 위해 항상 다음 안전 수칙을 준수하십시오.
- 전원 공급 장치: 전원 공급 장치 볼륨을 확인하십시오.tage is within the specified range. Incorrect voltage can cause damage or malfunction.
- 배선: Perform all wiring with the power supply turned off. Incorrect wiring can lead to electric shock or equipment damage.
- 환경: Do not install the sensor in locations subject to excessive dust, moisture, corrosive gases, or extreme temperatures.
- 손질: Handle the fiber optic cables with care. Bending or pulling them excessively can cause damage and affect performance.
- 유지: 자격을 갖춘 사람만이 유지보수 및 수리를 수행해야 합니다.
3. 제품 오버view
The Keyence FU-2897 is a high-performance fiber optic sensor designed for reliable detection in various industrial applications. It utilizes fiber optic cables to transmit and receive light, allowing for precise object detection in confined spaces or harsh environments where traditional sensors may not be suitable.
주요 특징:
- 간편한 통합을 위한 컴팩트한 디자인.
- High-speed response for demanding applications.
- 산업 환경에 적합한 견고한 구조.
- Compatible with various fiber units (sold separately) for flexible detection solutions.

Figure 3.1: Keyence FU-2897 Fiber Optic Sensor. This image shows the main body of the sensor, typically a small amplifier unit, which connects to fiber optic cables for detection.
4. 설정
Follow these steps for proper installation of the FU-2897 sensor.
- 센서 장착 Amp정수기:
Securely mount the FU-2897 amplifier unit in the desired location using appropriate mounting hardware. Ensure it is free from excessive vibration and heat sources.
- Attaching Fiber Units:
Insert the fiber optic cables (fiber units) into the designated ports on the sensor amplifier. Ensure the fibers are fully inserted and the locking mechanism (if present) is engaged. Avoid excessive force or bending of the fibers.
An illustration here would typically show the correct method for inserting and securing fiber optic cables into the sensor amp리파이어 포트.
- Wiring the Power Supply and Output:
Connect the power supply wires to the sensor amplifier according to the wiring diagram provided in the product's specific datasheet. Connect the output wires to your control system (e.g., PLC). Double-check all connections before applying power.
Refer to the specific wiring diagram for your FU-2897 model for detailed connection instructions.
5. 사용 설명서
Once the sensor is installed and wired, follow these steps for operation.
- 전원 켜기:
Apply power to the sensor. The power indicator LED (if present) should illuminate.
- Initial Setup/Sensitivity Adjustment:
Most fiber optic sensors require sensitivity adjustment to optimize detection for specific targets and distances. This is typically done via a potentiometer, push-buttons, or a digital display on the amp리퍼 유닛.
- 수동 조정: If equipped with a potentiometer, turn it to adjust sensitivity until stable detection is achieved for your target object.
- Auto-Teach Function: Some models feature an auto-teach button. Place the target object in the detection area and press the teach button, then remove the object and press again (or follow specific teach mode instructions).
Consult the detailed datasheet for your specific FU-2897 variant for precise sensitivity adjustment procedures.
- 확인:
Test the sensor's detection by repeatedly presenting and removing the target object. Observe the output indicator LED and verify that your control system receives the correct signal.
6. 유지관리
Regular maintenance ensures the longevity and reliable operation of your FU-2897 sensor.
- 청소:
Periodically clean the sensing surfaces of the fiber units and the amplifier unit with a soft, dry cloth. For stubborn dirt, use a cloth lightly dampened with isopropyl alcohol. Avoid abrasive cleaners or solvents.
- 점검:
Regularly inspect fiber optic cables for damage, kinks, or excessive bending. Check electrical connections for looseness or corrosion. Ensure mounting hardware is secure.
- 환경 점검:
Verify that the operating environment remains within the specified limits for temperature, humidity, and presence of corrosive substances.
7. 문제 해결
If you encounter issues with your FU-2897 sensor, refer to the following common problems and solutions.
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| 센서 전원이 켜지지 않습니다. | 전원 공급 안 됨, 배선 오류, 전원 공급 장치 고장. | 전원 연결 및 볼륨을 확인하세요tage. Verify wiring against diagram. Test power supply. |
| No detection or unstable detection. | Incorrect sensitivity setting, dirty fiber ends, damaged fiber, target too far/small, ambient light interference. | Adjust sensitivity. Clean fiber ends. Inspect fiber for damage. Ensure target is within detection range. Shield from strong ambient light. |
| Output always ON/OFF. | Incorrect output mode (Light-ON/Dark-ON), sensor saturated, no target present. | Check output mode setting. Adjust sensitivity. Verify target presence. |
이러한 해결 방법을 시도한 후에도 문제가 지속되면 Keyence 기술 지원팀에 문의하십시오.
8. 사양
The following are general specifications for the Keyence FU-2897 Fiber Optic Sensor. Specific performance may vary depending on the connected fiber unit and application.
- 모델: FU-2897
- 제조업체: 키 이언 스
- ASIN: B01LN3DGUI
- 검출 방법: Through-beam or Diffuse reflective (depends on fiber unit)
- 빛의 출처: Red LED (typical for general purpose fiber sensors)
- 응답 시간: Varies by mode, typically 250 µs to 1 ms
- 전원 공급 장치: 12 to 24 VDC ±10% (typical)
- 현재 소비량: 30 mA or less (typical)
- 출력 유형: NPN or PNP open collector (depends on model variant)
- 작동 온도: -10 to +55 °C (14 to 131 °F) (typical)
- 환경 저항성: IP67(amplifier front panel, typical)
- 첫 이용 가능 날짜: 6년 2016월 XNUMX
9. 보증 및 지원
Keyence products are manufactured under strict quality control. For information regarding product warranty, please refer to the warranty statement provided with your purchase or visit the official Keyence web대지.
For technical assistance, troubleshooting beyond this manual, or repair services, please contact Keyence technical support directly. Have your product model number (FU-2897) and serial number ready when contacting support.