Figure 30. Trip Test
Receiver
Emitter
Test Piece
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 .
WARNING:
•
Trip test failure
•
Using a system that has failed a trip test can result in serious bodily injury or death. If the
trip test has failed, the system might not stop dangerous machine motion when a person or
object enters the sensing field.
•
Do not attempt to use the system if the system does not respond properly to the trip test.
5. If mirrors are used in the application: Test the defined area on each leg of the sensing path (for example, emitter to
mirror, between mirror and receiver).
Figure 31. Trip Test with Corner Mirror
Receiver
Emitter
Test Piece
Mirror
6. If the EZ-SCREEN LS Basic System passes all checks during the trip test, go on to
on page 41.
6.4 Electrical Connections to the Guarded Machine
Verify that power has been removed from the EZ-SCREEN LS Basic and the guarded machine. Make the permanent
electrical connections as described in
on page 42 and
on page
42 as required by each individual application.
Lockout/tagout procedures may be required (refer to OSHA 1910.147, ANSI Z244-1, ISO 14118, or the appropriate standard
for controlling hazardous energy). Follow relevant electrical standards and wiring codes, such as the NEC, NFPA79 or IEC
60204-1.
Supply power and external device monitoring (EDM) should already be connected. The EZ-SCREEN LS Basic must also
have been aligned and passed the Initial Checkout, as described in
on page 37.
The final connections to be made or verified are:
EZ-SCREEN
®
LS Basic Safety Light Curtain
www.bannerengineering.com - Tel: + 1 888 373 6767
41
