The DQT4 series safety light curtain is a TYPE4 level safety protection product designed for medium to high-risk mechanical equipment. The entire machine complies with PLe and SIL3 mechanical safety level requirements, meets ISO13849-1 and Type 4 safety light curtain standards based on EN\/IEC61496-1\/-2 and GB\/T19436-1\/-2, and can provide high-level personal safety protection for punching machines, shearing machines, bending machines, automatic assembly lines, and other occasions.<\/p>\n
This series supports up to 3 sets of grating cascades, which can be flexibly combined to achieve L-shaped and U-shaped area protection, effectively preventing mutual interference and blind spots between multi-faceted openings. The output end adopts a dual independent redundant OSSD safety channel with complete self diagnostic function, which can directly drive safety relays or safety PLCs. When there is an abnormality in external wiring or internal circuits, the system will reliably shut down the output within one cycle to avoid misoperation.<\/p>\n
The DQT4 series offers multiple optional functions: EDM function with external relay contact monitoring, which can monitor external contactor adhesion faults in real time; Interlocking and reset functions, can be set to manual\/automatic reset; The bypass and override functions facilitate the short-term shutdown of the light curtain under specific operating conditions without affecting the operation of the equipment; Fixed shielding and floating shielding functions are suitable for scenarios where workpieces or logistics continue to pass through, ensuring personnel safety without reducing production efficiency.<\/p>\n
Optically, it adopts a collimated structure with an optional optical axis spacing of 7.5mm\/15mm\/30mm, corresponding to a resolution of 14mm\/21mm\/36mm, a detection distance of 0-6m, and a beam coverage of 15, 23-319 beams. The protection height is calculated as “optical axis spacing x (beam count -1)”. Response time \u2264 20ms, strong anti light interference ability, stable operation under 10000Lux ambient light conditions. The shell size is 30mm \u00d7 30mm \u00d7 L, with aluminum alloy profiles and ABS end caps, and a protection level of IP65.<\/p>\n
Controller model DQCA\/DQCA2, power supply voltage DC12\/24V, relay output side supports AC110-20V; The system power consumption is \u2264 200mA. The output supports two types: NPN\/PNP, with a maximum input current of 500mA and residual voltage \u2264 1.5V. It also has polarity, short circuit, and overload protection. The power indicator light of the projector is red, and the light receiver is indicated by green\/red LED to indicate the lighting, shading, and alarm status for quick diagnosis. The average time between dangerous failures (MTTFd) is 99a, with a working temperature of -10 \u2103 to+55 \u2103 and an environmental humidity of 20% to 85% RH. It is an ideal choice for upgrading safety protection in various stamping, sheet metal, packaging, and automated production lines.<\/p>\n","protected":false},"excerpt":{"rendered":"
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