Light curtains are supplied as a pair with a transmitter and receiver. The transmitter projects an array of parallel infrared light beams to the receiver which consists of a number of photoelectric cells. When an object breaks one or more of the beams a stop signal is sent to the guarded equipment.The light beams emitted from the transmitter are sequenced, one after the other, and pulsed at a specific frequency. The receiver is designed to only accept the specific pulse and frequency from its dedicated transmitter. This enables the rejection of spurious infrared light and thus enhances their suitability as components within a safety system.
Typically, light curtains are connected to a safety relay which will remove motive power from the hazard in the event that an object is detected. Safety relays can be provided with muting functionality which enables the temporary disabling of the safety function to allow objects to pass through the light curtains without tripping the safety relay. This is particularly useful for machinery which has some semi-automatic procedures.
Items | Technical Parameters |
Beams Number | 94 beams (infrared) |
Sensors Number | 17 pairs (refer to pictures) |
Sensors Interval | 117 mm (refer to pictures) |
Beams Center Points Interval | 10.5mm/11.5mm (refer to pictures) |
Scanning Form | Line by line |
Response Time | 61msec(relating to detecting points of scanning cycle) |
Detecting Height | 25-1860mm |
Detecting Range | 0~3m moving door |
Light Immunity | 100,000lux(visible light) |
Allowable Deviation Angle | ≤10° |
Allowable Deviation Position | Vertical: ±10mm/7° |
Horizontal: ±5mm/5° | |
Protecting States | Cable fault |
Power fault | |
Current Consumption | Less than100mA |
Protection Grade | IP65 standard |
Ambient Temp. | -20°C~ +70°C |
Storage Temperature | -40°C~ +80°C |
Other functions | One transmitter is shielded after 120s' blocking |
Indicator | Power (green LED) |
System fault/beams blocked(orange LED) | |
Shell Material | Aluminum alloy surface spray plastic(black) |
Shell Cover (light filter) | Embedded installation of infrared penetrating for blocking off non-infrared |
Authentication | TUV CE(EMC) |
Working Voltage | 12VDC |
Power supply | 220VAC or 24VDC |
