Banner EZ-SCREEN Low-Profile Safety Light Curtain Systems - Manual (Page 49)

P/N 1334
47
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Overview
P/N 140044 re v. E 47
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN LP
Instruction Manual System Operation
During Run Mode
Trip Output Configuration: If any beams become blocked
while the EZ-SCREEN LP is running with trip output selected,
the receiver outputs turn OFF within the stated EZ-SCREEN
LP 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 LP is running with latch output selected,
the receiver outputs turn OFF within the stated EZ-SCREEN
LP response time (see Specifications). If all the beams then
become clear, the receiver Zone indicators will all be Green and
the Reset indicator single-flashes, indicating the EZ-SCREEN
LP 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 LP 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 on the sensor’s 7-segment
display. 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 LP 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 LP 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 LP 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
conducts self-tests to detect critical internal faults, determine
configuration settings, and prepare the EZ-SCREEN LP for
operation. (If either sensor detects a critical fault, scanning
ceases, the receiver outputs remain OFF and diagnostic
information is displayed on the sensor’s 7-segment display.)
If no faults are detected, the EZ-SCREEN LP automatically
enters Alignment mode, and the receiver looks for an optical
sync pattern from the emitter. If the receiver is aligned and
receives 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
conducts self-tests to detect critical internal faults, determine
configuration settings, and prepare for operation. (If either
sensor detects a critical fault, scanning ceases, the receiver
outputs remain OFF and diagnostic information is displayed on
the sensor’s 7-segment display.) If no faults are detected, the
EZ-SCREEN LP automatically enters Alignment mode, and the
receiver looks for an optical sync pattern from the emitter. If
the receiver is aligned and receives 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
double-flashes to indicate the EZ-SCREEN LP is waiting for a
manual reset. After a valid manual reset, the EZ-SCREEN LP
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.