Q: What does OSSD1 and OSSD2 mean in the safety grating?

Answer: In fact, it represents the dual-channel PNP signal output of the safety grating, which is the abbreviation of Output Signal Switching Device or Optical Signal Swithing Device.

Content expansion:

Safety gratings are also called safety light curtains, which are mainly used for dangerous operation equipment, such as stamping, shearing, bending, automation equipment, etc., and can also be used for regional protection. When a person or object blocks the light of the safety light curtain, the light curtain sends a signal to the device to stop the device or return trip (this depends on the connected function and the type of control).

Signal type

General safety light curtain signal types include: NPN, PNP, relay output, these signal outputs are divided into normally open and normally closed. Choose different signal output according to the requirements we need. Generally, NPN or PNP can be converted into relay output by adding an intermediate relay. NPN and PNP signal types are generally DC 24VDC power supply.

Selection of safety grating

Optical axis spacing

According to the requirements of the equipment, first determine the type of signal output, and then the type of protection required, such as: fingers, palm, body, etc. If we protect our fingers, we can choose a safety grating with a 10mm optical axis spacing; and we can choose 20mm for the palm of our protection. Safety light curtain with 40mm optical axis spacing; if you protect your body, you can choose 40mm, 80mm, 120mm optical axis spacing safety gratings.

Safety light curtain protection height

The protection height of the safety light curtain is based on the top and bottom or length we need to protect. This refers to the effective protection height.

The beam distance of the safety grating

The beam distance refers to the beam distance between two light curtains, which can receive signals from each other. According to different distances, you can choose

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