Our punches generally require safety light curtains, and if the punch protector is applied to a punching machine, a complete set of safety light curtains is generally required. So what is the working principle of the complete set of safety light curtains?

Safety grating is also called safety light curtain. What is safety light curtain? Safety light curtain forms a protective grating through a set of infrared beams. When the grating is blocked, the photoelectric protection device sends a signal to control the potentially dangerous mechanical equipment to stop working. , In order to reduce the possibility of operators being injured in the working environment and effectively protect the personal safety of operators, it is mainly used in stamping machinery, shearing equipment, metal cutting equipment, automated assembly lines, automated welding lines, mechanical transmission and handling equipment, etc., The following will tell you how the safety light grid controls the relay! I hope to give you a general understanding of the working principle of the safety light grid.

Infrared safety gratings are installed in pairs, one end for the transmitter plays a transmitting function, one end for the receiver plays a receiving function, when there is an object in the middle to block any one or several beams of light, the signal output end is connected to 24V , You can use this signal to connect the control terminal of the relay to achieve the purpose of turning on or off the relay. Of course, the above-mentioned normal-open general grating output also provides a set of normally-closed signals to choose from, and our punches are often 220V or 380V Yes, at this time we need a controller to control the power conversion to 24V, so as to achieve the effect of normal operation and control.

Of course, some punch presses have passed the safety transformation and are equipped with PLC. At this time, the voltage itself is 24V. We can use NPN or PNP safety light curtains. The specific general electronic engineer or our safety grating manufacturer All are recommended for you.