How to solve the interference problem of safety grating

The safety grating is installed in a dangerous area to ensure the personal safety of the operator. However, when the safety grating is used, it will always encounter the interference. How to avoid these situations becomes the number one problem for the user. The following situations generally cause interference:

1. Light source interference;

2. Inverter interference (high frequency conversion, low frequency conversion);

3. Positional interference;

4. External high-strength signal interference;
 Solution:

First, the light source interference is divided into strong light interference and reflection interference. These two kinds of interference are better solved. It is enough to replace the strong light into a normal light at the position where the safety grating is used. The reflection interference is because it is near the safety grating. It has a brighter object or a mirror surface, and it can be solved by moving it outside the grating protection area.

Second, the inverter interference, this is a common domestic ordinary grating light curtain will encounter problems, in this case there are several ways to solve, 1, the grating communication cable used has a shielded line? If necessary, it is necessary to connect the shielded wire (preferably a shielded wire of better quality) and connect it to the grounding wire; 2. Avoid passing the place with the inverter when wiring; 3. On the signal line of the grating Connect an intermediate relay to isolate the interference signal, and the grating can not use the power supply on the machine. It needs to add a separate switching power supply. This has the advantage of avoiding interference signals passing through the power supply string to the grating. 4. If the above can not be solved. That can only use the optical sync signal grating, the optical sync signal grating has no synchronization line, and is not afraid of electromagnetic interference.

Third, the position of parallel interference means that the distance between two machines of the installed grating is relatively close or that two sets of gratings are installed side by side on one machine, and the signal from the transmitter of the first set of gratings allows the reception of the second set of gratings. The device is also received, so it causes parallel interference. This problem is also better solved, as long as we slightly misalign the positions of the two sets of gratings or swap the position of the transmitter and receiver of one of the gratings. It can be solved.

Fourth, external high-strength signal interference, this situation is less encountered, in some factories in the workshop with Wifi or some of the transmitters of the pass frequency and other signals will also cause interference to the grating. This requires moving away from these signals or turning them off.
When using the safety grating, avoid using it around high-frequency machines and grounding the safety grating. The normal use of the safety grating is not only the connection of the line, but also the normal use of the good light, and regular maintenance, so that the safety grating can be used continuously.