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The working principle and function of safety light curtain

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The working principle and function of safety light curtain

February 25,2021

1. The working principle of the safety light curtain

The working principle of the safety light curtain is: the illuminator emits an invisible light beam, and the receiver receives the invisible light beam to form a protective detection light curtain. The light receiver monitors the on-off state of the light curtain and signals the on-off state of the light curtain. Through internal circuit processing, it is connected to the PLC or alarm circuit through the transmission line to realize the stop of the equipment or issue a safety alarm.

Second, the function of the safety light curtain

The safety light curtain has three main functions: blanking function, shielding function, and floating function.

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