Introduction to light curtains
The safety light curtain is a kind of safety device that can form a virtual barrier around the danger, creating an inductive barrier that protects the machine access point and surroundings to protect people and machines from damage. CYNDAR provides an easy-to-use safety light curtain with the smallest footprint, durable housing and options for reducing wiring for various safety applications.
Application occasions:
The products are matched with mechanical equipment to protect the personal safety of operators.
| Stamping equipment | Automated storage equipment | Lifting control machinery | Injection molding machinery |
| Shearing machinery | Three-dimensional garage | Other existing dangerous situations | Automated assembly line |
| Bending machinery | Filter press machinery | Woodworking machinery | Rubber machinery |
| Welding assembly line | Molding machinery | Paper cutting machinery | Blow Molding Machine |
Product composition:
The safety light curtain consists of a transmitter and a receiver, which can effectively detect any opaque objects that enter the barrier area of the light curtain and exceed the detection accuracy, data cables, simple brackets and screws (different brackets for different models).
The through-beam light curtain can be used in conjunction with QCA, QCA2 controllers or directly connected to PLC and safety relays, and cooperate with the machine tool control system to realize the function of controlling automatic shutdown in dangerous situations.
Transmitter and receiver Screws, Nuts, Data cable
Selection knowledge:
1. A variety of models to choose from, which can be selected according to site conditions.
2. Provide 14mm, 20mm, 25mm, 30mm, 40mm, 80mm, a variety of detection accuracy is optional
3. The sensing range between the illuminator and the receiver can be 30mm~40,000mm.
4. NPN output (normally closed, normally open), PNP output (normally closed, normally open), RS485 output, RS232 output (two sets of outputs can be selected at the same time) can be selected; RS485 output and RS232 output are generally used for measurement type, Counting type and correction type light curtain
5. FMEA test to ensure control reliability
6. It has high immunity to EMI, RFI, ambient light, welding flash and strobe light.
7. Compatible with safe PLC input (in accordance with OSSD specifications)
8. Removable disconnect (RD) cables and mounting brackets are ordered separately
9. It can be equipped with a safety light curtain controller, and an optional built-in controller (installed in the electric cabinet) or an external controller (installed outside the machine tool)
9. If you need more functions, you can contact CYNDAR for inquiries.
Features:
·Perfect self-checking function: When the safety light curtain protector fails, make sure not to send wrong signals to the controlled electrical appliances.
·Strong anti-interference ability: the system has good anti-interference ability against electromagnetic signals, strobe lights, welding arcs and surrounding light sources.
·Convenient installation and debugging, simple wiring and beautiful appearance.
·Using surface mount technology, superior shockproof performance.
·Comply with safety level of the International Electrotechnical Society IEC61496 standard, designed in accordance with European standards, and have passed CE certification.
·Short response time (≤15ms), high safety and reliability.
·Ultra-small shape design, effectively reducing the installation space; the light curtain is connected to the cable through the aviation plug seat, which can be accurately, quickly and easily installed and unloaded and wired.
·All electronic components of this product are made of world-renowned brand accessories.
Beam spacing selection diagram:
Product technical parameters (conventional specifications)
| Light curtain form | Opposite beam | ||||||
Optical axis spacing | 10mm | 14mm | 20mm | 25mm | 30mm | 40mm | 80mm |
Detection accuracy Detection accurac | 18mm | 22mm | 28mm | 33mm | 38mm | 48mm | 88mm |
Number of beams | 4. 6...32 (More beams can be customized) | ||||||
Protection heigh | Optical axis spacing × (number of beams-1) | ||||||
Detection distance | A:0.3-3m;B:0.3-6m;C:0.3-10m;D:0.3-15;E:0.3-20m;F:0.3-25m;G:0.3-30m;H:0.3-40m | ||||||
Response time | ≤15ms | ||||||
Anti-light interference | 10000lux(Incidence angle≥5°) | ||||||
Dimensions | 30×30×Lmm(Different models and different sizes) | ||||||
Protection level | IP65 | ||||||
Controller | QCA/QCA2/QSW/QSWS | ||||||
voltage | DC12/24V ；AC110-220V(With controller and relay passive output) | ||||||
Current consumption | ≤200mA | ||||||
Output | NPN/PNP type, sink current 500mA, voltage drop below 1.5V, polarity, short circuit, overload protection (or RS485\RS323) | ||||||
Output state | ON when all optical axes are receiving light (green light is displayed when receiving) | ||||||
Indicator light | Emitter: power indicator (red); receiver: output indicator light (green) shading (red) | ||||||
light source | Modulated infrared LED | ||||||
Connection method | Circular aviation socket, equipped with special link cable, 5 cores for emitter and 5 cores for receiver (different types and different numbers of cores) | ||||||
Shell material | Aluminum alloy, end cover: ABS reinforced nylon | ||||||
Resistant to ambient light | Incandescent light: 3000Lx of light-receiving surface; Sunlight: 10000Lx of light-receiving surface | ||||||
Ambient temperature | When working: -10~+40℃ (but not freezing), when storing: -25~+55℃ | ||||||
environment humidity | When working: 35~85%RH, when storing: 35~95%RH | ||||||
Light curtain selection steps
1. Select the spacing according to the protection situation
2. Determine the protection height and the total height of the light curtain
3. Determine the distance between the transmitter and the receiver
4. If it is installed in a narrow space, you can contact CYNDAR to obtain a 3D picture of the light curtain, or show the size, and let CYNDAR choose it for you.
Select safety light curtain by series
Model series | Product name | Features or advantages | File download |
| CCT | Universal safety light curtain | Most conventional equipment and scenes can be used | |
| CAT | Ultra-long through-beam light curtain | Used for light curtains where the transmitter and receiver have a beam distance of more than 3 meters, such as area detection, perimeter protection, and robotic arm perimeter detection | |
| CSAT | Multi-sided detection light curtain | Used for multi-surface (area) detection, and can be controlled in series with two-sided controllers | |
| COT | No blind spot safety light curtain | It can be used for equipment where the height is restricted in a narrow space, the distance between the beam spot and the top of the light curtain is only 6.75mm | |
| CST | Photoelectric protection device light curtain | Used for punching machines and bending machines, etc. (very high shock resistance), optional external controller and 360° rotating bracket | |
| CRFT | Waterproof safety light curtain | Waterproof level can reach IP68, not afraid of water, can be used in humid environment, can be used outdoors | |
| CZT/CBT | Ultra-thin light curtain | Can be used for light curtains in narrow spaces, with a front thin type or a side thin type | |
| QX | Economical safety light curtain | Affordable light curtain (small size, shockproof deviation) suitable for devices with low vibration | |
| CLT/CMT | Measuring type light curtain/counting type light curtain | Line detection, size measurement, contour detection, precision correction, hole detection, shape detection, edge and center positioning, tension control, part counting, online product size detection and similar detection and measurement above, can be RS485\RS232 and NPN or PNP Group output | |
| QSMT | Vehicle separation light curtain | Can be used for road gate switch, high-speed toll station switch, weighbridge perimeter detection switch, vehicle model detection | QSMT Vehicle Separator Manual |
1. The vehicle light curtain is used with a stainless steel cover 2. Basic information of the outer cover: 304 stainless steel, 1.5mm thickness, size 1660*130*130mm, base 200*200mm 3. You can choose a heated outer cover or an unheated outer cover | |||
Optional accessories | |||
| QCA |
| Can control 1 set of light curtains, input voltage AC 110/220V, installed in the electric cabinet | Accessories |
| QCA2 |  | Can control 2 sets of light curtains, input voltage AC 110/220V, installed in the electric control box, the light curtain is matched with passive output and can be directly connected to high-power loads | Accessories |
| QSW |  | Can control 1 set of light curtains, input voltage AC 110/220V, installed in the electric control box, the light curtain supporting the use of passive output can be directly connected to high-power loads | Accessories |
| QSWS |  | Can control 2 sets of light curtains, input voltage AC 110/220V, installed on the side of the machine, dual relay passive output | Accessories |
| QCA-01 |  | Can be used for machine tools that have no position to support the light curtain | Accessories |
| QCA-07 |  | It can be used for machine tools that have no position to support the light curtain (machine tools with very strong vibration) | Accessories |
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