Overview
The Riko SU07-NP photoelectric sensor is a U-shaped optical detector engineered for precise mark and label detection in production machinery and conveyor systems. This compact sensor combines visible red light detection with practical NPN/PNP switching logic, making it ideal for address reading, cut mark sensing, and contrast detection on packaging lines and industrial automation equipment.
Key Features
- 7mm Sensing Distance – Compact U-shaped slot design for precise positioning accuracy
- Dual Output Logic – Available in NPN light-on (L.on) and dark-on (D.on) configurations
- 12-Turn Sensitivity Adjustment – Fine-tunable potentiometer for custom threshold control in varying ambient light
- Bright Red LED Indicator – High-visibility operation status for troubleshooting and setup
- IP64 Environmental Rating – Dust and splash resistance for factory floor reliability
- Low Power Consumption – Efficient 18mA typical draw; suitable for battery-backed monitoring systems
Technical Specifications
| Operating Voltage | DC 12–24V |
| Current Consumption | 18 mA (max) |
| Load Current | 100 mA (max at DC24V) |
| Response Time | 1 ms (max) |
| Sensing Distance | 7 mm |
| Detection Object | Opaque object (Ø0.5 × 10.0 mm min.) |
| Light Source | Red LED, 660 nm |
| Ambient Illumination Limit | 1,000 lux (incandescent light, max) |
| Operating Temperature | −10°C to +55°C |
| Humidity Range | 35%–85% RH |
| IP Rating | IP64 |
| Insulation Resistance | 20 MΩ (min. @ DC500V) |
| Vibration Resistance | 1.5 mm peak-to-peak, 10–55 Hz, 2 hours (X, Y, Z) |
| Output Logic | NPN L.on / D.on; PNP L.on / D.on |
| Certifications | Meets AC500V 60 Hz industrial safety standards |
Typical Applications
- Label & Envelope Detection – Optical gap sensing for postal sorting and packaging lines
- Cut Mark Sensing – Position verification on slitting, laminating, and die-cut machinery
- Address & Barcode Reading – Edge detection for document feeders and print verification
- Web Edge Tracking – Contrast detection on paper, plastic film, and composite materials
- Conveyor Position Monitoring – Compact footprint for integration into narrow machine frames
Compatibility & Replacements
Compatible With
- Standard 24 VDC PLC input modules (NPN common cathode / PNP common anode)
- DC 12V/24V relay and contactor coils
- Discrete 24 VDC industrial control circuits
- Safety-rated monitoring systems (verify voltage rating and response time tolerance)
Replaces / Drop-In Replacement For
- SU07-N (NPN dark-on variant)
- SU07-P (PNP dark-on variant)
- SU07-ND1 (NPN variant with connector)
- SU07-PD1 (PNP variant with connector)
- SU07-NPB1 (NPN/PNP connector version)
Works With
- Allen-Bradley CompactLogix, ControlLogix, and MicroLogix DC input cards
- Siemens SIMATIC S7-1200 and S7-1500 analog/digital inputs
- Mitsubishi FX series and Q series PLCs
- Omron CJ and NX series controllers
- Any 24 VDC industrial automation platform with standard NPN/PNP input acceptance
