Overview
The Keyence FS2-60 is a fiber optic sensor amplifier designed for long-distance detection in industrial automation, food processing, packaging, and material handling applications. This cable-type amplifier integrates the photoelectric sensing electronics in a compact form factor and connects directly to Keyence fiber optic sensors via standard fiber cables. The unit operates on 12–24 VDC and features NPN open-collector output with built-in protection circuits for reliable, maintenance-free operation.
Key Features
- Red LED light source — visible and stable across industrial environments
- 250 μs response time — fast detection for conveyor and sorting applications
- 8-turn sensitivity trimmer — fine-tune detection to ambient conditions
- LIGHT-ON/DARK-ON switchable modes — flexible logic configuration
- Built-in timer function — 40 ms ON-delay and OFF-delay with disable option
- Indicator LEDs — red for output status, green for stability confirmation
- Protection circuits — reversed polarity, overcurrent, and surge protection
Technical Specifications
- Model: FS2-60
- Output Type: NPN open-collector
- Control Output: 100 mA max. @ 40 V max., residual voltage 1 V max.
- Stability Output: 50 mA max. @ 40 V max., residual voltage 1 V max.
- Power Supply: 12–24 VDC ±10%
- Current Consumption: 35 mA typical
- Response Time: 250 μs
- Sensitivity Adjustment: 8-turn potentiometer trimmer
- Operating Temperature: 0 to +50 °C (32 to 122 °F)
- Mounting: DIN rail or panel-mount bracket (optional)
- Connector Type: Fiber optic cable with standard fiber connectors
Typical Applications
- Conveyor and sorting system detection
- Packaging line presence/absence sensing
- Transparency and surface detection on web materials
- Food processing and beverage production
- Long-distance target detection (fiber optic advantage)
- High-temperature or harsh-environment sensing
- Plastic molding and extrusion monitoring
Compatibility & Replacements
Compatible With
- Keyence FS series fiber optic sensors
- Standard fiber optic sensor heads and probe assemblies
- Industrial PLC and motion controller inputs supporting 12–24 VDC NPN logic
- DIN-rail mounted control cabinets
- Factory automation and OEM equipment
Replaces / Drop-In Replacement For
- Keyence FS2-60 (standard NPN model)
- Verify compatibility with your system integrator before ordering.
Works With
- Keyence fiber optic sensor heads and M12/M18 probe assemblies
- Standard single-mode and multi-mode fiber optic cables
- 24 VDC industrial control systems and PLCs (Allen-Bradley, Siemens, Mitsubishi, Omron)
- Industrial relay logic and pneumatic control systems
- PROFIBUS, EtherNet/IP, and other standard industrial networks (via external gateway modules)




