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  • 01

    2026/06

    Can NPN and PNP sensors be connected together in the same PLC? Risks and correct approaches

    In an automated environment, it is sometimes the case that the same device has both NPN output sensors and PNP output sensors. Can these be directly connected to the input module of the same PLC? The

    more
  • 29

    2026/05

    The "polarizing filter" of the photoelectric sensor: When must it be turned on?

    When detecting high-reflective objects (such as mirror-like stainless steel, beverage cans, high-gloss packaging films, shiny metals, etc.), ordinary mirror-reflection type photoelectric sensors often

    more
  • 28

    2026/05

    The sensor indicator light is on but there is no output? Three-step troubleshooting method

    Step 1: Check power supply. Confirm whether the sensor's power supply voltage is within the product's specified range (commonly DC 24V). Pay attention to the connection method of the common terminal o

    more
  • 25

    2026/05

    Is the safety barrier installed and then it's done for good? Daily maintenance is essential.

    Safety grilles are an important barrier for protecting industrial equipment. However, many users no longer pay attention to their status after installation. In fact, the grilles are exposed to dust, o

    more
  • 22

    2026/05

    Why is the response time of the safety curtain important? If not properly calculated, when your hand is inserted, the equipment has not yet stopped.

    The response time of the safety curtain refers to the time interval during which the beam is blocked and the output signal is disconnected. It directly determines the distance of safety - the longer the response time, the greater the safety distance, and the farther the curtain is from the dangerous point.

    more
  • 20

    2026/05

    Magnetic switches and proximity switches: They may seem similar, but they are actually different.

    In industrial settings, magnetic switches and proximity switches may have similar appearances, but their working principles and applicable scenarios are completely different. Correctly distinguishing

    more
  • 13

    2026/05

    Industrial safety door locks: Core functions and typical application scenarios

    Industrial safety door locks are specialized safety interlock devices designed for use on industrial equipment, hazardous areas, and safety guard doors. Their core function is safety protection - ensu

    more
  • 11

    2026/05

    Safety Light Curtain and Safety Relay: How to Collaboratively Build Reliable Protection

    In industrial safety protection systems, the safety light curtain and the safety relay each play different but complementary roles. The light curtain is responsible for detecting the intrusion of pers

    more
  • 09

    2026/05

    Can the proximity switch still function properly in a high-temperature environment (above 70℃)?

    Near equipment such as injection molding machines, ovens, and hot presses, the ambient temperature often exceeds 70℃. The internal components of a common inductive proximity switch include a circuit

    more
  • 06

    2026/05

    The four-step method for selecting safety door locks: Identify risks, ensure equipment safety

    In the safety protection of industrial equipment, safety door locks are the key components that ensure the reliable stoppage of the equipment before personnel enter the dangerous area. Incorrect selec

    more
  • 29

    2026/04

    The four functions of displacement sensors in equipment upgrades

    The displacement sensor is the core sensing component for achieving high-precision control and intelligent upgrades in automated equipment. Its main functions are as follows:

    more
  • 27

    2026/04

    How can equipment with safety grilles installed be connected to the emergency stop signal?

    In many industrial equipment, even if safety grilles have been installed, additional emergency stop signals need to be connected to achieve dual safety protection. So, how should different output type

    more
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