Banner AG4 Series Safety Laser Scanner
28
P/N 144924 05/2009
Product Manual
4.4
Considerations for Adjacent Scanners
CAUTION . . . ADJACENT SCANNERS
Scanners that have a clear line of sight to another Scanner and that share the same detection plan must be adjusted or
shielded so that their light pulses are not detected by these adjacent scanners.
The AG4 circuitry has been developed so that adjacent scanners are not influenced by the other’s signals. However adjacent scanners can
cause the response time to increase if the fields are in the same detection plane and overlap (see example below).
1.
Plan for shielding with stationary (non-mobile) applications.
2.
The shielding must be at least as high as the Scanner front screen and flush with the front housing edge (see example below).
3.
If shielding is planned that is still within the recessing in the machine contour, the resolution of the PFs must not be impaired at any
accessible points.
4.
Shielding is required for both horizontal and vertical alignment of the overlapping PFs.
1 Hazard
2 Scanner
3 Machine with recessing for sensor installation
4 PFs
5 Shielding
Figure 15. Use of Shielding to Prevent Overlapping PF Influences from Scanners Mounted Adjacent to Each Another