A：In industrial production, various high-risk production equipment is used, such as punching machines, bending machines, and shearing machines. Without proper safety measures, these devices can easily cause accidents during operation, posing a serious threat to the personal safety of workers.In this era, which values talent, recruiting has become increasingly difficult. Every employee wants to wor...

A：The working principle of measuring light curtain is as follows: The optical protection device detects the misalignment position, and if there is any deviation, it sends out a signal. The optical misalignment software system then performs editing and calculation operations on the signal and sends out control signals. The external actuator is driven by the control system to make corrections in the...

A:The output mode (Output Type) of the safety light curtain mainly depends on your equipment control system requirements and safety level design requirements. The following are selection suggestions:Application ScenarioRecommended output modeReasonGeneral industrial automation systemPNP / OSSDQuick response and strong compatibilityJapanese or old PLC control systemNPNMatching control input typeCon...

A:In order to meet different industrial control systems and safety requirements, safety light curtains usually provide four output modes:1. PNP (common)· The output is positive voltage (+24V DC), and the output is high when a safe state is detected.· Applicable to most PLCs and relay input systems of the "positive trigger" type.· Advantages: strong anti-interference ability and good market compati...

A:When purchasing the DADISICK QSA multi-sided light curtain, please refer to the following points according to actual usage needs:1. Number of protection surfaces1 to 4 configurations are available to adapt to different fence layouts.2. Detection distanceSupports a range of 1–45 meters to meet the protection needs of most scenarios.3. Resolution selectionSelect the required resolution based on th...

A:Typical application scenarios of multi-sided access protection light grids (such as DADISICK's QSA series) include:1. Robot operation area protectionBuild closed safety areas on multiple open sides of the robot workstation to prevent people from entering the danger zone by mistake.2. Automated assembly line perimeter protectionDeploy light curtains around the equipment to prevent operators from ...

A:Single-sided light curtains only protect one plane; DADISICK's QSA series multi-sided access protection light grid uses mirror foldback to achieve multi-surface monitoring with one wiring, reducing hardware and installation time, and saving PLC I/O.

A:QSA is a Multi-Sided Access Protection light curtain developed by DADISICK for four-sided fence protection scenarios. It uses transmitters, reflectors and receivers to form 1-4 infrared networks, which can build a closed safety zone within a distance of 1-45 m.

A:Normally, safety light curtains cannot effectively detect transparent objects for the following reasons:Safety light curtains mostly use the infrared emission and reception principle. Transparent objects (such as glass and transparent plastic) have a high transmittance to infrared light, and the light beam will not be effectively blocked. Therefore, the receiver can still receive the signal, res...

A:Yes, in general, it is safer to use normally closed (NC) contacts than normally open (NO) contacts for safety light curtains for the following reasons:✅ Why is normally closed safer?1. Power failure causes immediate shutdown, default safe state:Normal closed contacts are closed in normal state. Once power is lost, the line is loose, the light curtain fails or the cable is damaged, the circuit wi...

A:When a moving part with a safety edge hits an operator or the operator hits a moving part, the conductive layer inside it is squeezed by external force and forms a circuit, thereby triggering the safety control system to send a signal to stop the equipment or perform a preset safety action. This structure can respond to collision or pinching risks in the first place, effectively preventing perso...

A:Self-checking function means that during the operation of a safety product, it can automatically monitor whether its key components and functions are working properly, and immediately issue an alarm or cut off the output when a fault or abnormality is found to ensure that the system is in a safe state.

A:The blanking function of the safety light curtain mainly includes two types: fixed blanking and floating blanking, which are used to temporarily shield certain light axes in specific applications to prevent non-dangerous objects from triggering alarms.Fixed blanking: The beam area at the preset position is shielded, which is suitable for long-term fixed objects (such as fixtures, conveyor line s...

A:In general, according to the concept of modern DADISICK laser radar by Dadi, it can be classified into the following types:1. Based on the laser wavelength: ultraviolet laser radar, visible laser radar, and infrared laser radar.2. Based on the laser medium: gas laser radar, solid-state laser radar, semiconductor laser radar, and diode-pumped solid-state laser radar.3. Based on the laser emission...

A:The forced guide structure is a mechanical design used in safety components such as safety relays to ensure that the normally open and normally closed contacts will not close at the same time when a relay contact failure occurs (such as contact adhesion). It can effectively improve the system's fault detection capabilities and is an important guarantee for building a reliable industrial safety c...

A: The difference between automatic reset and manual reset of safety light curtain is as follows:✅ Automatic reset:· Definition: After the obstacle is removed, the light curtain automatically resumes working state without manual intervention.· Advantages: High efficiency, suitable for automation environment without frequent manual confirmation.· Risks: There is a risk of false triggering, and auto...

A:The optical axis spacing refers to the center distance between two adjacent infrared beams in the safety light curtain. It is usually measured in millimeters (mm) to measure the detection accuracy of the light curtain.

A：In the safety laser scanner, "safety zone" and "warning zone" are two different monitoring areas, and their functions are as follows:Safety Zone:It is the key protection area set by the scanner. Once a person or object is detected entering this area, the system will immediately trigger a safety response, such as emergency shutdown, to ensure that personnel are not injured by the machine.Warning ...

A：Generally, it is not recommended to cut or fold the safety mat by yourself for the following reasons:· Cutting will damage the internal sensing circuit, affect the detection function of the mat, and cause safety failure;· Folding may cause damage or breakage of the internal structure, causing false alarms or missed detections;· Safety mats usually have preset sizes and sensing areas, which have ...

The main features of safety relays include:1. Forced guided contacts: ensure that normally open and normally closed contacts are not connected at the same time, which helps with fault detection.2. Redundant design: internal multi-channel circuits to improve fault tolerance.3. Self-check function: automatically check the wiring and contact status when power is on to ensure system safety.4. Complian...

A:Safety relays are needed in safety circuits to ensure that the equipment can reliably cut off dangerous actions in emergency or abnormal situations, thereby ensuring the safety of personnel and equipment. Its role is far beyond that of ordinary relays for the following reasons:✅ Why safety relays are needed:1. Forced guided contact structureIt has a forced opening/closing function to prevent fal...

The role of safety relays is to ensure that industrial equipment can stop operating reliably and safely in an emergency, thereby protecting personnel and equipment. Its main functions include:1. Realize safety control logic: such as dual-channel input monitoring, interlocking, redundancy, etc.2. Connect safety devices: such as emergency stop buttons, safety light curtains, safety door locks, two-h...

When selecting a safety relay unit, the following factors should be considered:1. Safety level requirements (Performance Level / SIL)Based on the risk assessment results of the application scenario, select a safety relay that meets the corresponding safety level (such as PL e, SIL3).2. Input signal typeClarify the type of safety equipment connected (such as safety light curtains, safety door locks...

The main differences between shielded and non-shielded proximity switches are as follows:1. Shielded Proximity Sensors· Installation: Can be mounted flush on metal surfaces· Detection distance: Shorter (usually about 70% of the non-shielded type)· Electromagnetic field direction: Mainly focused on the front· Interference immunity: Stronger, suitable for metal environments· Housing design: The fron...

A：Inductive proximity switches are mainly used to detect metal objects, have strong anti-interference capabilities, and are suitable for industrial automation scenarios; while capacitive proximity switches can detect metals and non-metals (such as plastics, liquids, wood, etc.), have high sensitivity, but are more easily affected by the environment. The choice should be made based on the material ...

A：When choosing the right type and size of safety edge, the following key factors should be considered:1. Application scenario: Select the appropriate edge model according to the type and movement of the installed equipment (such as automatic doors, lifting platforms, AGVs, etc.).2. Edge length: Select the appropriate edge length according to the size of the actual protection area to ensure that a...

Safety Edge is often used to detect contact between objects or people and moving parts to prevent squeezing, collision or pinching accidents. It is suitable for a variety of industrial and automation environments. The following are the main application scenarios:1. Automatic doors and rolling shutter doors: installed on the edge of the door body, when a person or object is squeezed to the edge, th...

A：Safety mats can be integrated with other safety devices in the following ways to achieve more efficient linkage safety protection:1.In conjunction with safety relays: Connect the safety mat to the safety relay. When a person is detected stepping on it, the relay immediately cuts off the power supply of the dangerous equipment.2.Linked with safety light curtains: Used in conjunction with light cu...

A：Safety relays are suitable for all kinds of industrial application scenarios that have high requirements for personnel safety and need to realize emergency control and safety monitoring of equipment. The following are some typical application scenarios:✅ 1. Emergency stop system (E-Stop)· Realize the immediate power off and shutdown of equipment or production line in an emergency.· Commonly used...

A：Safety relays implement redundancy and feedback circuits in the following ways to ensure that the system remains safe in the event of a fault:✅ Redundant design:· Dual-channel input: Two independent input circuits are used (such as the two contacts of the emergency stop button), and the output will only be output when the two conditions are met at the same time;· Dual relay output: Two or more r...

A:The main differences between safety relays and ordinary relays are their design purpose, internal structure and safety functions:🔒 Safety relays· Designed for safety functions to protect personal safety and machine equipment.· With redundant circuits and self-test functions to prevent single-point failure.· Meet international safety standards (such as ISO 13849-1, IEC 61508, IEC 60204-1, etc.)....

A：Ultrasonic sensors can detect a variety of materials, mainly including:· Metals (such as steel, aluminum, etc.)· Plastics (such as PVC, ABS, PE, etc.)· Glass (including transparent or frosted glass)· Liquid surfaces (such as water, oil, chemical solutions)· Paper, cloth and wood· Flexible materials such as ceramics, rubber, foam, etc.Its advantage is that it is not affected by the target color, ...

A:Ultrasonic sensors measure distance by emitting and receiving sound waves, but for irregular or inclined surfaces, the echo signal may be weakened or the reflection may deviate. To improve measurement accuracy, the following methods are usually used:1. Choose a suitable installation angle: Aim the sensor at the possible reflection direction of the target to avoid signal deviation caused by too l...

A：When selecting the measurement range and accuracy of laser displacement and ranging sensors, you can refer to the following points:1. Application requirements: Determine the distance range and required accuracy of the object to be measured. For example, a high-precision short-distance sensor is used for micro-displacement detection, and a ranging type is selected for long-distance targets.2. Res...

A：In high temperature or highly reflective surface environments, laser displacement and ranging sensors may have measurement errors. Common coping methods include:1. Choose a laser with the right wavelength: Using laser wavelengths that are more sensitive to high reflectivity or special materials (such as blue or green light) can improve measurement stability.2. Add filtering and temperature compe...

A：The main differences between laser displacement sensors and laser ranging sensors are measurement accuracy, measurement distance and application scenarios:1. Laser Displacement Sensor· Measurement object: small displacement changes at close range.· Precision: high, usually up to micrometer level (μm).· Measurement distance: short, generally between tens of millimeters and hundreds of millimeters...

A：To ensure the compatibility of the door lock and the safety control system, it is recommended to start from the following key aspects:✅ 1. Electrical interface matching· Check whether the voltage level of the door lock (such as 24V DC) is consistent with the control system.· Check whether the input/output type (NPN/PNP, dry contact/active signal, etc.) is compatible.· Ensure that the terminal ty...

A：Vehicle light curtains ensure reliability in all weather conditions in the following ways:1. Infrared or laser technology: Use light sources with strong anti-interference, such as infrared or laser, to reduce the impact of rain, fog, snow and other weather on detection.2. High protection level: With a high protection level (such as IP65 or IP67), it is dustproof and waterproof, and adapts to har...

A:Vehicle light curtains are used to classify vehicles at highway toll stations, mainly in the following ways:Multi-beam detectionLight curtains are arranged on both sides of the lane to form multiple detection areas, which can accurately detect parameters such as the number of wheels, wheelbase, and vehicle height.Real-time data analysisThe system records the time difference and occlusion pattern...

A：The vehicle light curtain accurately measures the length and speed of the vehicle through precise beam scanning technology. The main principles are as follows:✅Detect vehicle length· Multiple infrared light curtain arrays span the lanes to form a dense detection area.· When a vehicle passes by, the time difference between the first and last beams of the blocked beams multiplied by the vehicle's ...