Banner EZ-SCREEN Safety Light Curtain Systems User Manual
Page 39
8. Observe the Status and Alignment indicators:
• Lockout: Status Blocked flashing Red
• Blocked: Status Blocked ON Red Alignment indicators ON, OFF, or one of each Status Clear OFF
• Clear: Status Clear ON Green Alignment indicators both ON Status Blocked OFF
• Latch: (defined Status Blocked ON Red Alignment indicators flashing Yellow area clear) Status Clear OFF
9. A Blocked condition indicates that one or more of the beams is misaligned or interrupted. To correct this situation see the Align-
ment procedure in
on page 31. If the System is in a Latch condition, perform a manual reset.
10. Once the Green and Yellow Status indicators are ON, perform the trip test (described in
on page 32) on each sensing
field to verify proper System operation and to detect possible optical short circuits or reflection problems. Do not continue until the
EZ-SCREEN Type 2 passes the trip test.
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) be-
fore applying power to the guarded machine. Failure to do so could result in serious bodily
injury or death.
11. Apply power to the guarded machine and verify that the machine does not start up. 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.
12. 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 should come to a stop with no apparent delay. 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.
13. Remove electrical power to the EZ-SCREEN Type 2. Both OSSD outputs should immediately turn OFF, and the machine should
not be capable of starting until power is re-applied to the EZ-SCREEN Type 2.
14. 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. (Banner’s applications engineering department can rec-
ommend a suitable instrument.) Do not continue operation until the entire checkout procedure is complete and all problems are
corrected.
WARNING: Do Not Use Machine Until System Is Working Properly
If all of these checks cannot be verified, do not attempt to use the safety system that includes the
EZ-SCREEN Type 2 and the guarded machine until the defect or problem has been corrected (see Trou-
bleshooting). Attempts to use the guarded machine under such conditions could result in serious
bodily injury or death.
EZ-SCREEN® Type 2 Light Screen Instruction Manual
122452 rev. B
www.bannerengineering.com - tel: 763-544-3164
39