6. Examine the electrical wiring connections between the EZ-SCREEN LS OSSD outputs and the guarded machine’s
control elements to verify that the wiring meets the requirements stated in
Electrical Connections to the Guarded
on page 50.
7. Inspect the area near the defined area (including work pieces and the guarded machine) for reflective surfaces (see
on page 32). Remove the reflective surfaces if possible by relocating them, painting,
masking or roughening them. Remaining problem reflections will become apparent during the Trip Test.
8. Verify that power to the guarded machine is Off. Remove all obstructions from the defined area. Apply power to the
EZ-SCREEN LS System.
9. Observe the Status indicators and Diagnostic Display:
• Lockout: Status flashing red; all others Off
• Blocked: Status—Solid red; one or more Alignment indicators— Solid red; Run Mode— Solid amber
• Clear: Status—Solid green; Alignment indicators— Solid green (flashing green indicates blanking is enabled);
Run Mode— Solid amber
10. A Blocked condition indicates that one or more of the beams is misaligned or interrupted. See the Alignment
procedure in to correct this situation.
11. After the green and amber Status indicators are On, perform the trip test (
field to verify proper System operation and to detect possible optical short circuits or reflection problems. Do not
continue until the EZ-SCREEN LS passes the trip test.
Important: Do not expose any individual to any hazard during the following checks.
WARNING: Before Applying Power to the Machine
Verify that the guarded area is clear of personnel and unwanted materials (such as tools) before
applying power to the guarded machine. Failure to follow these instructions could result in
serious injury or death.
12. Apply power to the guarded machine and verify that the machine does not start up.
13. Interrupt (block) the defined area with the supplied test piece and verify that it is not possible for the guarded
machine to be put into motion while the beam(s) is blocked.
14. Initiate machine motion of the guarded machine and, while it is moving, use the supplied test piece to block the
defined area. Do not attempt to insert the test piece into the dangerous parts of the machine. Upon blocking any
beam, the dangerous parts of the machine must come to a stop with no apparent delay.
15. Remove the test piece from the beam; verify that the machine does not automatically restart, and that the initiation
devices must be engaged to restart the machine.
16. Remove electrical power to the EZ-SCREEN LS. Both OSSD outputs should immediately turn Off, and the machine
must not be capable of starting until power is re-applied to the EZ-SCREEN LS.
17. Test the machine stopping response time, using an instrument designed for that purpose, to verify that it is the
same or less than the overall system response time specified by the machine manufacturer. A Banner Applications
Engineer can recommend a suitable instrument.
Do not continue operation until the entire checkout procedure is complete and all problems are corrected.
EZ-SCREEN
®
LS Safety Light Screen
64
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