• [ CXHA31125 ]"

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In modern industrial automation and mechanical equipment, high-precision, high-reliability position detection and motion control is the cornerstone of intelligent manufacturing. CXHA31125 series miniature photoelectric sensor, with its excellent performance, flexible driving mode and a wide range of applicable voltage, become the ideal choice in the field of mechanical motion detection and position control. This article will analyze the functional characteristics, electrical parameters, application scenarios and precautions of the CXHA31125 in depth, and provide a comprehensive technical reference for engineers and system integrators.eDI嘉泰姆

1. Product Overview and Core Features

The CXHA31125 is a miniature photoelectric sensor with a current drive capability of 50 to 100mA, which can be directly installed inside the machine for applications such as detecting the position, motion or counting of objects. Its most notable features include:eDI嘉泰姆

1.1. Dual drive mode: Support shading drive (Dark-ON) and light transmission drive (Light-ON), users can select through the L pin level;eDI嘉泰姆

With shading/light transmission indicator, can directly confirm the actioneDI嘉泰姆

1.2. High response frequency: The response frequency is 1KHz, up to 3kHz, suitable for high-speed detection scenes,;eDI嘉泰姆

1.3. Two-color indicator lightShading/light transmission status indication for on-site debugging and status confirmation;eDI嘉泰姆

1.4. Wide voltage input: Support DC 5V ~ 24V, adapt to a variety of industrial power environment;eDI嘉泰姆

1.5.NPN open drain output: It can directly drive loads such as relays and PLC inputs.eDI嘉泰姆

2. pin function and electrical parameters

2.1. The CXHA31125 adopts a 4-pin design, and the functions of each pin are as follows:eDI嘉泰姆
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2.2. Its key electrical parameters include:eDI嘉泰姆
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2.2.1) Operating current: 35mA typicaleDI嘉泰姆

2.2.2) Sensing distance: groove width 5mmeDI嘉泰姆

2.2.3) Minimum resolution distance：0.025mmeDI嘉泰姆

2.2.4) Working temperature:-30 ℃ ~ 50 ℃eDI嘉泰姆

2.2.5）Response frequency：1kHz~3kHzeDI嘉泰姆

Detailed explanation of 3. application scenarios

CXHA31125 are widely used in the following industrial and automation scenarios:eDI嘉泰姆

3.1. Mechanical equipment position detection: such as conveyor belt item counting, access control switch detection;eDI嘉泰姆

3.2. Motion control feedback.: Used for motor speed detection and stepper motor position feedback;eDI嘉泰姆

3.3. Automated assembly line: Check whether the parts are inspected and assembled in place;eDI嘉泰姆

3.4. Electronic equipment safety testing: such as printer paper detection, ATM cash box status detection;eDI嘉泰姆

3.5. Laboratory instrumentsHigh precision displacement or rotational speed measurement.eDI嘉泰姆
3.6. Application InformationeDI嘉泰姆
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4. I/O Circuits and Wiring Examples

4.1. The CXHA31125 supports two output modes:eDI嘉泰姆

4.1.1)Light-ON mode: When the light passes through the sensor, the output is turned on, and the indicator light is on red;eDI嘉泰姆

4.1.2)Dark-ON mode: When the light is blocked, the output is turned on and the indicator light goes out.eDI嘉泰姆

4.2. The output is NPN open-drain structure, which can directly drive relays, solenoid valves or PLC digital input modules. Typical wiring is as follows:eDI嘉泰姆

VDD → 5~24V
L & rarr; connected to VDD (transmission mode) or floating (shading mode)
OUT & rarr; load (e. g. relay coil)
GND & rarr; Power Ground

Precautions for the use of 5.

In order to ensure the long-term stable operation of the sensor, the following points should be noted:eDI嘉泰姆

5.1. Anti-static protection: The CXHA31125 is an electrostatic sensitive device, and anti-static measures should be taken during operation and welding;eDI嘉泰姆

5.2. Welding conditions: It is recommended to use a soldering iron with a temperature not exceeding 350 ℃, and the soldering time should be controlled within 3 seconds to avoid soldering to the area within 1.5mm of the terminal root;eDI嘉泰姆

5.3. Environmental adaptability: The sensor protection level is IP50, not waterproof and oil-proof, and should be avoided in a humid, dusty or liquid splashing environment;eDI嘉泰姆

5.4. Electrical loads: The output current must not exceed 100mA, otherwise the internal transistor may be damaged;eDI嘉泰姆

5.5. Optical interference: Avoid strong light direct to the receiver to avoid misoperation.eDI嘉泰姆

Recommendations for 6. installation and commissioning

6.1. When installing, ensure that there is no obstruction between the sensor and the measured object, and the optical path is clear;eDI嘉泰姆

6.2. During debugging, the working mode and output state can be quickly confirmed by means of indicator lights;eDI嘉泰姆

6.3. It is recommended to install protection diodes (such as freewheeling diodes) at the output, especially when driving inductive loads;eDI嘉泰姆

6.4. If it is used in high-speed detection scenarios, the response frequency threshold should be set reasonably to avoid missed detection or false triggering.eDI嘉泰姆

7. Package Schematic

8. Summary

CXHA31125 miniature photoelectric sensor has become the preferred device for position detection and motion control in industrial automation and mechanical equipment because of its dual-mode drive, high response frequency, wide voltage input and good environmental adaptability. Whether in high-speed production lines, precision instruments or general industrial environments, it can provide stable and reliable detection performance and help the system achieve a higher level of automation and intelligence.eDI嘉泰姆

IX. Related ProductseDI嘉泰姆

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