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Methods to prevent interference between multiple photoelectric switches.
Simple operation and improved resistance to external optical interference.
Features like bright LEDs and high resistance to sunlight.
Procedure for automatic sensitivity adjustment using the Auto Adjust button.
Various reflectors compatible with retroreflective models.
Standard and wraparound brackets for mounting.
Slits and mutual interference protection filters for thru-scan models.
Key electrical, environmental, and physical characteristics.
Illustrations of output circuit configurations for different models.
Excess gain and parallel displacement diagrams for thru-scan models.
Detailed diagrams showing parallel displacement under various conditions.
Excess gain and parallel displacement for retroreflective models.
Excess gain, target specifications, and detection characteristics.
Excess gain and detection area characteristics for wide-beam models.
Parallel displacement for transparent object detection models.
Diagrams for pre-leaded, M12, and M8 connector types.
Specifications for thru-scan model slits.
Details on polarizing filters and sold-separately reflectors.
Diagrams for button-mounting, rear-mounting, and wraparound brackets.
Steps for adjusting sensitivity without a target object.
Method for tuning sensitivity using two target points.
Instructions for switching between Light-Operate and Dark-Operate modes.
Fine-tuning detection for specific positions.
Procedure to reset the switch to factory default sensitivity.
Troubleshooting guide for indicator lamp flashing patterns.
Details on PA5 series connectors and cable properties.
Information on PA7 series connectors and Quick Lock compatibility.
Specifications for PA8 series connectors and M8 compatibility.
Guidelines for using reflectors and object blocking requirements.
Tips for optimal setup and reliable detection of transparent objects.
Recommendations for ensuring consistent performance and maintenance.
Guidelines for safe installation, operation, and maintenance.
Important considerations for cable extensions and power supply connections.
Step-by-step guide for adjusting thru-scan and diffuse-scan models.
The Azbil HP7 Series General-Purpose Photoelectric Switches with Self-Contained Amplifier are designed for reliable and versatile object detection across a wide range of industrial applications. These switches offer a robust set of features, including various configurations, enhanced interference resistance, and user-friendly adjustment capabilities, making them suitable for diverse operating environments.
The HP7 Series comprises several detection methods: thru-scan, retroreflective, diffuse-scan, wide-beam diffuse-scan, and retroreflective transparent object detection. Each method is tailored for specific detection scenarios, providing flexibility in application.
Thru-scan models consist of separate emitter and receiver units. They detect objects when the light beam between the two units is interrupted. These models are available in both red and infrared light sources, with detection ranges up to 30 meters. Certain thru-scan models also offer different frequency options to prevent mutual interference when multiple units are installed in close proximity.
Retroreflective models combine the emitter and receiver into a single unit and use a reflector to bounce the light beam back to the sensor. An object is detected when it breaks this reflected beam. These models typically use a red light source and have detection ranges up to 5 meters. They are equipped with visible red light beams for easy light axis alignment over long distances. Polarizing filters are incorporated to minimize false detections from highly reflective objects.
Diffuse-scan models detect objects by sensing the light reflected directly from the object itself. These self-contained units are ideal for applications where a reflector or separate receiver cannot be easily installed. They are available with infrared or red light sources and offer detection ranges up to 1 meter, with specialized wide-beam diffuse-scan models extending detection up to 100 mm for consistent detection of darker colors.
The retroreflective transparent object detection models, specifically the HP7-C1 series, are designed for reliably detecting transparent objects such as plastic bottles or glass. These models utilize a reflector (FE-RR17C) and are sensitive to small changes in light intensity caused by transparent materials.
All HP7 Series switches feature a self-contained amplifier, simplifying installation and wiring by integrating the amplification circuitry directly into the sensor head. The output types include NPN and PNP open collector, compatible with various control systems.
The HP7 Series is designed for ease of use and reliable performance in challenging industrial settings.
Interference Suppression: A key feature is the advanced interference suppression. Standard thru-scan switches can be combined with different frequency switches to prevent mutual interference for up to two units side-by-side without needing an external filter or reorienting the units. For more complex setups, an interference mutual protection filter allows up to four thru-scan units to be installed side-by-side. Additionally, automatic interference suppression enables two units to be installed in close proximity. New algorithms enhance resistance to external optical interference, making these switches suitable for modern lighting environments.
Auto Adjust Button: The "Auto Adjust" button is a problem-solving feature that simplifies sensitivity adjustment. If the switch operation is inconsistent with factory default settings, pressing this button automatically adjusts the sensitivity. This is particularly useful for detecting challenging objects such as semi-transparent targets, or in situations where detection is difficult due to light seeping through the object, false detection, or the need for detection in a specific position. The auto-adjust function supports both "tuning without a workpiece" (setting sensitivity based on the absence of an object) and "two-point tuning" (setting sensitivity based on both the presence and absence of an object) for precise position tuning.
High-Intensity Red LED: Many models are equipped with a high-intensity four-element red LED. This ensures that the light spot is easily recognizable, which significantly saves time during light axis adjustment, especially over long distances.
Robust Construction: The switches feature threaded metal mounting holes, providing more reliable and secure installation. The industry-standard mounting pitch of 25.4 mm ensures compatibility with existing setups. Lenses are highly resistant to oil and chemicals, enhancing durability in harsh industrial environments, particularly for thru-scan and retroreflective models.
Wide Range of Configurations: The series offers a wide range of configurations and specifications, allowing users to select the most appropriate switch for their specific application requirements. This includes different detection ranges, light sources (red and infrared), and output types.
Transparent Object Detection: The HP7-C1 series is specifically designed for detecting transparent objects, addressing a common challenge in many industries. This series is optimized to detect subtle changes in light intensity caused by transparent materials, expanding the application possibilities of the HP7 series.
The HP7 Series incorporates features that contribute to long-term reliability and ease of maintenance.
Long Service Life: The use of 4-element LEDs not only provides high visibility but also contributes to a long service life, reducing the frequency of replacements and associated downtime.
Resistance to Environmental Factors: The switches are designed with excellent resistance to sunlight, capable of operating reliably in environments with up to 40,000 lx of sunlight, an industry-leading specification. They also maintain stable operation across a wide temperature range (-30 to +55°C) and humidity range (35 to 85% RH), ensuring consistent performance in various climates.
Protective Structure: With an IP67 protective structure (IEC standard), the switches are highly resistant to dust and water ingress, making them suitable for demanding industrial environments where exposure to these elements is common.
Lens Material: The highly resistant lens material (to oil and chemicals) minimizes degradation and ensures consistent optical performance over time, reducing the need for frequent cleaning or replacement due to chemical exposure.
Wiring Error Protection: The devices include full wiring error protection and error prevention circuits at power-on, safeguarding the switch from damage due to incorrect wiring and enhancing overall system reliability.
Regular Maintenance Advice: The manual provides clear guidelines for maintaining optimal performance, such as waiting 3 minutes after power-on for internal temperature stabilization before tuning, retuning if ambient temperature varies significantly, and regular cleaning of the lens and reflector to prevent light intensity variations caused by dirt or misalignment due to vibration. These recommendations help users ensure the longevity and accuracy of their photoelectric switches.
General| Protection degree | IP67 |
|---|---|
| Category | Switch |
| Type | Limit Switch |
| Sensing method | Mechanical |
| Output type | Contact output |
| Operating temperature range | +70°C |
| Contact Configuration | 1NO/1NC, 2NO/2NC |
| Rated Voltage | 250V AC/DC |
| Mechanical Life | 10, 000, 000 operations |
| Power supply voltage | Not applicable (mechanical switch) |
