Note: A LAT-1-SS Laser Alignment Tool is very helpful by providing a visible red dot along the optical axis. See
on page 38 and Banner Safety Applications Note SA104 (p/n
) for further information.
Figure 22. Optical alignment using the LAT-1-SS
Component 2 (Mirror)
Component 3 (Mirror)
Component 4 (Receiver)
Component 1 (Emitter)
Figure 23. Corner Mirror Alignment
6.3.5 Trip Test
After optimizing the optical alignment and configuring fixed blanking (if applicable), perform the trip test to verify the
detection capability of the EZ-SCREEN LS Basic System. This test also verifies correct sensor orientation and identifies
optical short circuits. After the installation has passed the trip test, the safety outputs may be connected and the
commissioning checkout may be performed (initial installations only).
1. Select the proper test piece (see
on page 38), supplied with the receiver.
Table 7: Appropriate Test Pieces for Trip Test
23 mm Resolution Models
23 mm (0.91 in) diameter
STP-19
2. Verify that the System is in Run mode, the Green Status indicator is On, all Alignment indicators are green, and the
amber Status indicator is On.
3. Pass the specified test piece through the defined area in three paths: near the emitter, near the receiver, and
midway between the emitter and receiver.
Receiver
Emitter
Test Piece
Figure 24. Trip Test
4. During each pass, while the test piece is interrupting the defined area, at least one Alignment indicator must be Red.
The Red Alignment indicator must change with the position of the test piece within the defined area.
If all Alignment indicators turn green or fail to follow the position of the test piece while it is within the defined area,
the installation has failed the trip test. Check for correct sensor orientation and reflective surfaces.
When the test piece is removed from the defined area, in trip output operation, the green Status indicator must turn
on .
EZ-SCREEN
®
LS Basic Safety Light Screen
38
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