11. After the green and amber Status indicators are On, perform the trip test (
Trip Test
(p. 41)) 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 LPM passes the trip test.
Important: Do not expose any individual to any hazard during the following checks.
WARNING:
• Clear the guarded area before applying power or resetting the system
•
Failure to clear the guarded area before applying power could result in serious injury or
death.
• Verify that the guarded area is clear of personnel and any unwanted materials before
applying power to the guarded machine or before resetting the system.
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 LPM. 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 LPM.
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.
Do not continue operation until the entire checkout procedure is complete and all problems are corrected.
7.2 Muting Checkout
1. Verify that the system has been reset and the Green Status indicator is On. If the Yellow Reset indicator is flashing
(indicating the system is waiting for a reset of a latched condition), perform a manual reset. At any time, if the Status
indicator begins to flash Red, a lockout condition exists. Refer to Section 6 to determine the cause of the lockout.
During this procedure, at all times ensure that personnel are not exposed to any hazard.
2.
Block or activate each mute device individually and verify that the correct Mute Device indicator on the receiver is
On Yellow. If not, check the mute devices and their wiring.
3. Mute the system by blocking (or activating) both mute devices (typically M1−M2) simultaneously (within 3 seconds).
4. Verify that the external Mute Lamp comes On. If not, check the indicator and its wiring. Verify that the ME/OR2 input
is closed ( if configured for Mute Enable), and check the Diagnostic Display for error codes.
5.
Interrupt (block) the defined area of the EZ-SCREEN LPM; verify the Status indicator is On Green.
6.
Clear the defined area (before the Mute Timer expires) and verify the Status indicator remains On Green. Clear
(deactivate) the mute devices before the Mute Timer expires (see
Mute Time Limit (Backdoor Timer)
(p. 60)) and
verify the external Mute Lamp goes Off. The Status indicator should remain On Green.
7. Verify that it is not possible for a single individual to initiate a mute condition by triggering the mute devices (for
example, by blocking both photoelectric beams or actuating both switches) and access the hazard without being
detected and issuing a stop command to the machine. Do not expose any individual to hazard while attempting to
mute the system.
8. Verify that it is not possible for personnel to pass in front of, behind, or next to the muted object without being
detected and without issuing a stop command to the machine.
9. When used, verify optional functions. Do not expose any individual to hazard while attempting to mute, bypass, or
override the system.
One-way (directional) muting using the Mute Enable function (configuration options #1 or #2)
1.
With the ME/OR2 input open (N.C. switch held open) or at 0 Vdc, verify that the system can not be muted by
blocking (or activating) the mute devices within 3 seconds of each other. Do not expose any individual to hazard
while attempting to mute the system.
"Exit-only" application (configuration options #7 and #8)
1.
Verify the minimum carrier length requirement for this mute configuration. See
Entry/Exit Applications
(p. 54) and
Figure 33
(p. 56).
EZ-SCREEN Low-Profile
System with Integral Muting
www.bannerengineering.com - Tel: + 1 888 373 6767 51
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