Banner EZ-SCREEN­ Safety Light Curtain Systems - Manual (Page 32)

e. If, at any time, the Status Blocked indicator begins to flash Red, the System has entered a Lockout condition. See Trouble-
shooting and Lockout Conditions on page 47 for further information.
FLASHING
Red
Optical Alignment Procedure with Mirrors
EZ-SCREEN Type 2 sensors may be used with one or more corner mirrors for guarding more than one side of an area. The MSM... and
SSM-... rear-surface glass mirrors are rated at 85% efficiency. Thus, excess gain and sensing range are reduced when using mirrors; see
Use of Corner Mirrors on page 20.
In addition to the standard optical alignment procedure, verify:
1. That the emitter, receiver, and all mirrors are level and plumb
2. The middle of the defined area and the center point of the mirrors are approximately the same distance from a common reference
point, such as the same height above a level floor. Ensure that there are equal amounts of mirror surface above and below the
defined area such that the optical beams are not passing below or above the mirror.
Figure 12. Optical alignment using the LAT-1-LS
Component #2
(Mirror)
Component #3
(Mirror)
Component #4
(Receiver)
Component #1
(Emitter)
Figure 13. Corner Mirror Alignment
During any adjustments, allow only one individual to adjust any one item at any one time.
NOTE: A LAT-1-LS Laser Alignment Tool is very helpful by providing a visible red dot along the optical
axis. See
Figure 12. Optical alignment using the LAT-1-LS on page 32 and Banner Safety Applications
Note SA104 (P/N 57477) for further information.
Trip Test
After optimizing the optical alignment, perform the trip test to verify the detection capability of the EZ-SCREEN Type 2 System. This test
will also verify correct sensor orientation and identify optical short circuits. Once the installation has passed the trip test, the safety out-
puts may be connected and the commissioning checkout may be performed (initial installations only).
1. Use the 30 mm specified test piece supplied with the receiver.
EZ-SCREEN® Type 2 Light Screen Instruction Manual
32 www.bannerengineering.com - tel: 763-544-3164 122452 rev. B