Safety light curtains are divided into several categories with three lines of light emitters, and the wireless wiring method of light receivers is as follows:

First, the link cable of the safety light curtain is connected with the light emitter and the light receiver respectively through the aviation plug (Note: the connecting cable of the light emitter is a three-wire system---brown line, blue line, green line: the link cable of the light receiver is Five-wire system---brown wire, blue wire, green wire, black wire, white wire)

Second, the brown wires of the connecting cables of the emitter and the receiver are respectively connected to the positive pole of the power supply of the device - the green wire is connected to the negative pole - the blue wire is connected, and the black or white wire is the output wire, which is connected to the input end of the device. If the load is a relay, Connect the black wire or white wire to one input terminal of the relay (if the relay has polarity requirements = the black wire or white wire is connected to the negative terminal of the relay in NPN output, and the black wire or white wire is connected to the positive terminal of the relay, and the other terminal of the relay is connected to the PNP output. One input terminal is connected to the positive or negative pole of the power supply)

Third, the safety light curtain has NPN dual output or PNP dual output. According to the needs, you can choose one of the two outputs for use or two independent settings for simultaneous use. No matter which one of the outputs is selected, the other cable can be used. Insulate the wire.

Fourth, the safety light curtain of the safety light curtain NPN/PNP output mode at the same time, NPN is the black line - PNP is the white line, you only need to choose one output method according to your actual needs, and the other output cable can be Remove or insulate.

The input and output lines of the safety light curtain are best separated from power lines, high-voltage lines, and other signal lines with high-frequency, high-voltage, and high-current power distribution, wiring, and interference on one side.