Banner EZ-SCREEN­ Safety Light Curtain Systems - Manual (Page 48)

46
P/N 133487
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Overview
46
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN
Instruction Manual
System Operation
During RUN Mode
Trip Output Configuration: If any beams become blocked
while the EZ-SCREEN is running with Trip Output selected,
the receiver outputs turn OFF within the stated EZ-SCREEN
response time (see Specifications). If all the beams then 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 Configuration: If any beams become blocked
while the EZ-SCREEN is running with Latch Output selected,
the receiver outputs turn OFF within the stated EZ-SCREEN
response time (see Specifications). If all the beams then become
clear, the receiver Zone indicators will all be Green and the
Reset indicator will single-flash, indicating the EZ-SCREEN is
waiting for a manual latch reset. In Latch Output operation, the
outputs come back ON only when all beams are clear and after
a manual reset. The EZ-SCREEN will wait for a manual reset;
when a valid reset signal is received and all beams remain clear,
the receiver outputs turn ON.
Internal Faults (Lockouts): If either sensor detects a critical
fault, scanning ceases, the receiver outputs turn OFF and
diagnostic information is displayed through the sensor’s front
window. See Section 5 for resolution of error/fault conditions.
4.6 Periodic Checkout Requirements
To ensure continued reliable operation, the System must be
checked out periodically.
At every shift change, power-up and machine setup change,
the Daily checkout should be performed; this checkout may be
performed by a Designated or Qualified Person (see Section 6.3
and the Daily Checkout Card for the procedure).
Semi-annually, the EZ-SCREEN and its interface to the guarded
machine should be thoroughly checked out; this checkout must
be performed by a Qualified Person (see Section 6.4). A copy of
these test results should be posted on or near the machine.
Whenever changes are made to the System (either a new
configuration of the EZ-SCREEN or changes to the machine),
the Commissioning Checkout should be performed (see Section
6.2).
4.5 Normal Operation
System Power-Up
The EZ-SCREEN will power up in one of two ways, depending
on the Trip/Latch Output configuration. If it is set for Trip Output,
it will power up and reset automatically; if it is set for Latch
Output, it will require a manual reset procedure after power-up
and sensor alignment.
Trip Output Power-Up: When power is applied, each sensor
will conduct self-tests to detect critical internal faults, determine
configuration settings, and prepare the EZ-SCREEN for
operation. (If either sensor detects a critical fault, scanning
ceases, the receiver outputs remain OFF and diagnostic
information is displayed through the sensor’s front window.) If
no faults are detected, the EZ-SCREEN will automatically enter
ALIGNMENT mode, with the receiver looking 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 Power-Up: When power is applied, each sensor
will conduct self-tests to detect critical internal faults, determine
configuration settings, and prepare the System for operation.
(If either sensor detects a critical fault, scanning ceases, the
receiver outputs remain OFF and diagnostic information is
displayed through the sensor’s front window.) If no faults are
detected, the EZ-SCREEN will automatically enter ALIGNMENT
mode, with the receiver looking 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 Reset indicator will double-flash to indicate the
EZ-SCREEN is waiting for a manual reset. After a valid manual
reset, the EZ-SCREEN enters RUN mode and continues
scanning.
WARNING . . .
Verify Proper Operation
It is the user’s responsibility to verify proper operation, on a regular
basis, as instructed in Section 6. Failure to correct such problems
can result in serious bodily injury or death.