Banner EZ-SCREEN­ Safety Light Curtain Systems - Manual (Page 45)

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 16. Status Indicator behavior during the trip test
Normal Operation
System Power-Up
Apply power and verify that the Status Blocked LED is OFF, and Status Clear LED is ON Green.
Trip Output Systems: When power is applied, each sensor will conduct self-tests to detect critical internal faults and prepare for opera-
tion. (If either sensor detects a critical fault, scanning ceases, the receiver outputs remain OFF and diagnostic information is displayed via
the LEDs; see
Troubleshooting and Lockout Conditions on page 47.) If no faults are detected, the receiver will look for an optical sync
pattern from the emitter. If the receiver is aligned and receiving the proper sync pattern, it enters RUN mode and begins scanning to
determine the blocked or clear status of each beam. No manual reset operation is required.
Latch Output Systems: When power is applied, each sensor will conduct self-tests to detect critical internal faults and prepare for opera-
tion. (If either sensor detects a critical fault, scanning ceases, the receiver outputs remain OFF and diagnostic information is displayed via
the LEDs; see
Troubleshooting and Lockout Conditions on page 47.) If no faults are detected, the receiver will look for an optical sync
pattern from the emitter. If the receiver is aligned and receiving the proper sync pattern, it begins scanning to determine the blocked or
clear status of each beam. When all beams are aligned, the Yellow Alignment indicators will flash to indicate the System is waiting for a
manual reset. After a valid manual reset, the System enters Run mode and begins scanning.
Run Mode
Trip Output Systems: If any beams become blocked while the System is running, the receiver outputs turn OFF within the stated System
response time (see
EZ-SCREEN Type 2 Models With Response Times on page 14). When all the beams become clear, the receiver
outputs come back ON. No resets of any kind are needed. All required machine control resets are provided by the machine control circuit.
Latch Output Systems: If any beams become blocked while the System is running, the receiver outputs turn OFF within the stated Sys-
tem response time (see
EZ-SCREEN Type 2 Models With Response Times on page 14). When all the beams become clear, the receiver
EZ-SCREEN® Type 2 Light Screen Instruction Manual
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