5.3.1 Receiver
Alignment Indicators
Two Yellow Alignment indicators (Top and
Bottom)
tell the alignment status of the top and
bottom
beams in the light screen. This is
helpful for sensor alignment:
first
align the Top beam (the sync beam), then the
bottom
beam. The Alignment indicators also
flash
together to indicate a manual reset is needed (Latch output models).
Indicator
Color
On
Flashing
Off
Top Alignment
Yellow
Top (sync) beam is aligned and
clear
(Both together) System is
aligned;
waiting
for manual
reset (Latch models)
Top (sync) beam is blocked or misaligned
Bottom
Alignment
Yellow
Bottom
beam is aligned and clear
Bottom
beam is blocked or misaligned;
sync beam possibly blocked
Status Indicators
Two Status indicators (Blocked and Clear) work together to indicate the status of the light screen.
Indicator
Color
On
Flashing
Off
Clear Status
Green
Light screen aligned and clear;
outputs On
Test mode (with Red On)
Light screen blocked; outputs
Off
Blocked Status
Red
Light screen blocked; outputs
Off
Lockout
Light screen aligned and clear; outputs On
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
TRIP
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
LATCH
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
TRIP
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
LATCH
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
TRIP
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
LATCH
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
TRIP
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
LATCH
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
TRIP
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
LATCH
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
LATCH
Trip
Output
Models
Latch
Output
Models
Sync
Beam
Figure 21. Status Indicator behavior during the trip test
5.3.2
Emitter
Power/Fault Indicator: Green LED indicates whether power is applied or a Fault
condition
exists.
Emitter
Indicator
Color
ON
Flashing
OFF
Power/Fault
Green
Power is applied
Fault
indication
No Power
EZ-SCREEN
®
Type 2 Light Screen
36
www.bannerengineering.com - Tel: 763.544.3164