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Normally, the light grid switches on one light beam after the other from bottom to top for a scan.
If the light grid has a minimum number of 60 beams, beam packages can be defined which can start simultaneously to reduce the scanning time. For this the light grid is divided into sections (up to 3). As an example, a light grid with 90 beams and a high speed scan 3 would always have 3 beams on at the same time, starting from 1; 31 and 61 and running upwards simultaneously.
The number of beams that can be activated simultaneously depends on the size of the detection area (detection area, beam spacing and number of beams), as the prerequisite for high speed scan is that the beams do not interfere with each other. If this is the case, an information message will appear when teaching:
During the teach process, the system therefore automatically checks whether the simultaneous beams influence each other and adjusts the high speed scan accordingly. For our example, this would mean the following:
It is checked whether e.g. receiver 31 can detect a signal from transmitter 1. If this is the case, the light grid is switched to high speed scan 2.
The light grid is then divide into 2 sections (high speed scan 2) and it is checked whether receiver 46 can receive a signal from transmitter 1. If this is not the case, high-speed scan 2 is retained.
It is heavily dependent on the application, light grid and distance, so the number of simultaneous scans can only be reliably determined during a teach-in process and is set automatically - the setting can not be changed manually. This is mostly due to the fact that the overlap of the receivers increases with distance (see example figure below)
